Converting Unitized Wheel Ends to Conventional Hub Bearings and Wheel Ends on Meritor Coach Front and Tag Axles – MERITOR

SEOCONTENT-START

TP-15123
Issued 01-16
Technical Bulletin
Converting Unitized Wheel Ends
to Conventional Hub Bearings and
Wheel Ends on Meritor Coach
Front and Tag Axles
FH941KX, FH946KX, MCI4002 and MCI6003
Axles
IT1sP sT-ue1ec5dh1 n02i1c3a-l1 B6ulletin Hazard Alert Messages
Read and observe all Warning and Caution hazard alert messages in
this publication. They provide information that can help prevent
serious personal injury, damage to components, or both.
WARNING
To prevent serious eye injury, always wear safe eye protection
when you perform vehicle maintenance or service.
Park the vehicle on a level surface. Block the wheels to
prevent the vehicle from moving. Support the vehicle with
safety stands. Do not work under a vehicle supported only by
jacks. Jacks can slip and fall over. Serious personal injury and
damage to components can result.
How to Obtain Additional Maintenance,
Service and Product Information
Refer to Maintenance Manual 23, Bus and Coach Front and Tag
Axles; Maintenance Manual MM-0409, Wheel-End Components;
Maintenance Manual MM-0467, EX+™ Air Disc Brake; and
technical publication TP-89159, Axle Wheel Bearing Installation
Specifications. To obtain these publications, visit Literature on
Demand at meritor.com.
Converting Unitized Wheel Ends to
Conventional Hub Bearings and Wheel
Ends on Meritor Coach Front and Tag
Axles
This technical bulletin provides instructions for converting unitized
wheel ends to conventional bearing hubs and wheel ends on certain
Meritor coach front and tag axles. Wheel ends can be identified by
the features shown in Figure 1 and Figure 2. Affected models are
shown in Figure 3, Figure 4, Figure 5, Figure 6, Figure 7, Figure 8,
Figure 9 and Figure 10.
Figure 1
Figure 2
How to Obtain Kits
Contact Meritor’s Commercial Vehicle Aftermarket at
888-725-9355.
Figure 1
Figure 2
4012340a
‘M’ SYMBOL
IN CENTER
12 BOLT
ATTACHMENT
PATTERN
INSPECTION
PORT
UNITIZED WHEEL END (UWE)
M
4012339a
10 BOLT ROTOR
HUB CAP ATTACHMENT
CONVENTIONAL BEARING WHEEL END
TP-15123
Issued 01-16 (16579)
Page 2 Copyright Meritor, Inc., 2016 Printed in USA
Kits
The following kits are for converting unitized wheel ends to
conventional bearing hubs on FH941KX, FH946KX, MCI4002 and
MCI6003 axles.
FH941 Front Axles
Table A: KIT 13020 — D Coach
Table B: KIT 13020-A — D Coach
Table C: KIT 13020-B— E/J Coach
FH946 Steerable Tag Axles
Table D: KIT 13020-B — D Coach
Table E: KIT 13020-C — D Coach
Table F: KIT 13020-B— E/J Coach
MC14/MC16 Frame Tag Axles
Table G: KIT 13018 — D Coach
Table H: KIT 13018 — E/J Coach
Axle
Specification
Brake
Angle
Stud
Standout Wheel
FH941KX7 BAF 0° 2.09″ Steel/
Aluminum
FH941KX15 BAF 0° 2.09″ Steel/
Aluminum
Axle
Specification
Brake
Angle
Stud
Standout Wheel
FH941KX20 BAF 0° 1.82″ Steel
FH941KX26 BAF 0° 1.82″ Steel
Axle
Specification
Brake
Angle
Stud
Standout Wheel
FH941KX1 BAF 44° 2.09″ Steel/
Aluminum
FH941KX6 BAF 44° 2.09″ Steel/
Aluminum
FH941KX11 BAF 44° 2.09″ Steel/
Aluminum
FH941KX13 BAF 44° 2.09″ Steel/
Aluminum
FH941KX16 BAF 44° 2.09″ Steel/
Aluminum
Axle
Specification
Brake
Angle
Stud
Standout Wheel
FH946KX11 BAR 44° 2.09″ Steel/
Aluminum
FH946KX22 BAR 44° 2.09″ Steel/
Aluminum
Axle
Specification
Brake
Angle
Stud
Standout Wheel
FH946KX20 BAR 44° 1.82″ Steel
FH946KX36 BAR 44° 1.82″ Steel
FH946KX42 BAR 44° 1.82″ Steel
Axle
Specification
Brake
Angle
Stud
Standout Wheel
FH946KX6 BAF 44° 2.09″ Steel/
Aluminum
FH946KX9 BAF 44° 2.09″ Steel/
Aluminum
FH946KX23 BAF 44° 2.09″ Steel/
Aluminum
Axle Specification
Brake
Angle
Stud
Standout Wheel
MC14002NSNK1 BAR 60° 2.09″ Steel/
Aluminum
MC14002NSNK4 BAR 60° 2.09″ Steel/
Aluminum
Axle Specification
Brake
Angle
Stud
Standout Wheel
MC16002NSNK4 BAR 60° 2.09″ Steel/
Aluminum
MC16002NSNK6 BAR 60° 2.09″ Steel/
Aluminum
MC16002NSNK8 BAR 60° 2.09″ Steel/
Aluminum
TP-15123
(16579) Issued 01-16
Printed in USA Copyright Meritor, Inc., 2016 Page 3
FH941 Front Axle with BAF-0 Oriented Brakes
Figure 3
FH946 Tag Axle with BAR-44 Oriented Brakes
Figure 4
Figure 3
4012479a
TORQUE
PLATE
BRAKE
CALIPER
FRONT
Figure 4
4012480a
TORQUE
PLATE
BRAKE
CALIPER
FRONT
TP-15123
Issued 01-16 (16579)
Page 4 Copyright Meritor, Inc., 2016 Printed in USA
MC14 Tag Axle with BAR-60 Oriented Brakes
Figure 5
Figure 5
4012481a
BRAKE
CALIPER
TORQUE
PLATE
FRONT
TP-15123
(16579) Issued 01-16
Printed in USA Copyright Meritor, Inc., 2016 Page 5
FH 941 and FH 946 Axles
Figure 6
Figure 6
KING PIN
COTTER PIN
STEERING KNUCKLE
THREADED
KNUCKLE
CAP
GREASE
FITTING
GREASE FITTING
KING PIN CAP
BUSHING KING PIN CAP
TIE ROD ARM
BOLT
CLAMP
TIE ROD
ARM KEY
TIE ROD END
TIE ROD CLAMP
LOCKNUT
TIE ROD
ASSEMBLY
BUSHING
TIE ROD
ARM NUT
DRAW
KEY
NUT
DRAW
KEY
DRAW KEY
DRAW KEY NUT
COTTER PIN
TIE ROD END NUT
SEAL, IF REQUIRED
THRUST
BEARING
STOP
SCREW
AXLE CENTER
SEAL SHIMS
STOP
SCREW
LOCKNUT
SEAL
STEERING ARM
FH 941 AND FH 946
STEERING ARM
AND KNUCKLE
4012361a
TP-15123
Issued 01-16 (16579)
Page 6 Copyright Meritor, Inc., 2016 Printed in USA
Conventional Hub — FH Series Front and Steerable Tag Axles with EX+ Brakes
Figure 7
Figure 7
4006161a
1
2
17
3 4 5 6
8 7
9
13
14
12
16
10
11
15
Item Description
1 Capscrew
2 Hubcap
3 Outer Nut
4 Lock Washer
5 Lock Ring
6 Inner Nut
7 Conventional or PreSet Hub
8 Wheel Stud
9 Rotor-to-Hub Capscrew
10 Rotor
11 EX+ Brake
12 Torque Plate-to-Knuckle Capscrew
13 Torque Plate
14 Torque Plate-to-Caliper Capscrew
15 Knuckle
16 Nut
17 PRO-TORQ™ Nut for PreSet Hub
TP-15123
(16579) Issued 01-16
Printed in USA Copyright Meritor, Inc., 2016 Page 7
Conventional Hub — MC14 and MC16 Series Tag Axle with EX+ Brakes
Figure 8
Figure 8
4012342a
16
3
4
5
6
2
1
8 9
10
11
13
15
14
12
7
Item Description
1 Capscrew
2 Hubcap
3 Outer Nut
4 Lock Washer
5 Lock Ring
6 Inner Nut
7 Rotor-to-Hub Capscrew
8 Wheel Stud
9 PreSet Hub
10 Rotor
11 EX+ Brake
12 Torque Plate-to-Spindle Capscrew
13 Torque Plate-to-Caliper Capscrew
14 Torque Plate
15 Spindle
16 PRO-TORQ™ Spindle Nut
TP-15123
Issued 01-16 (16579)
Page 8 Copyright Meritor, Inc., 2016 Printed in USA
Unitized Wheel End — FH Series Front Tag Axle with EX+ Brakes
Figure 9
Figure 9
4006158a
1
3
5
6
7
8
9
10
13 14
15
12
2
4 11
Item Description
1 Wheel Adapter Capscrew
2 Inspection Plug
3 Wheel Adapter
4 Wheel Stud
5 Rotor
6 Keeper
7 PRO-TORQ™ Spindle Nut
8 Thick Washer
9 Unitized Hub Bearing
10 EX+ Brake Assembly
11 Torque Plate-to-Spindle Capscrew
12 Torque Plate
13 Torque Plate-to-Brake Caliper Capscrew
14 FH Series Knuckle
15 Nut
TP-15123
(16579) Issued 01-16
Printed in USA Copyright Meritor, Inc., 2016 Page 9
Unitized Wheel End — MC Series Tag Axle with EX+ Brakes
Figure 10
Figure 10
4012343a
8
6
7
1
3
5
9
10
13 14
12
2
4
11
Item Description
1 Wheel Adapter Capscrew
2 Inspection Plug
3 Wheel Adapter
4 Wheel Stud
5 Rotor
6 Keeper
7 PRO-TORQ™ Spindle Nut
8 Thick Washer
9 Unitized Hub Bearing
10 EX+ Brake Assembly
11 Torque Plate-to-Spindle Capscrew
12 Torque Plate
13 Torque Plate-to-Brake Caliper Capscrew
14 Spindle
TP-15123
Issued 01-16 (16579)
Page 10 Copyright Meritor, Inc., 2016 Printed in USA
Removal and Disassembly Procedures
In this section, the unitized wheel-end specific components will
need to be removed from the axle. This will include the knuckles/
spindles, torque plates, unitized wheel-end bearing assemblies,
rotors, PRO-TORQ™ nuts and wheel adapters. The steering arm, tie
rod arm and tie rod assemblies will be reused.
Remove the Wheel-End Components
1. Wear safe eye protection. Park the vehicle on a level surface.
Block the rear wheels to prevent the vehicle from moving.
2. Raise the vehicle so that the axle is off the ground. Support the
vehicle with safety stands. Do not use a jack to support the
vehicle.
3. Remove the wheel and tire assembly.
4. Remove the brake caliper assembly. Refer to Maintenance
Manual MM-0467, EX+™ Air Disc Brake. Keep these parts
and fasteners for reuse.
5. Remove the wheel adapter and rotor. Discard these parts.
6. Remove the keeper from the PRO-TORQ™ nut. Use a
screwdriver to pry out the keeper arm from the groove on each
side of the nut until the keeper is released. Use a 3.5-inch
(89 mm) socket wrench to remove the PRO-TORQ™ nut.
Discard these parts.
7. Remove the thick washer and unitized hub bearing. Discard
these parts.
8. Repeat this procedure to remove the unitized wheel end on the
opposite side of the axle.
Remove the Steering Arm
1. Remove the cotter pin and nut that fasten the steering arm to
the drag link. Disconnect the steering arm from the drag link.
Figure 11.
Figure 11
2. Remove the cotter pin and nut that fasten the steering arm to
the knuckle. Figure 12.
Figure 12
3. Remove the steering arm from the knuckle. If necessary, use a
leather or plastic mallet to tap on the end of the arm and
separate the arm from the knuckle.
4. Inspect the steering arm. Keep the parts for reuse.
Remove the Tie Rod Arms, Tie Rod Assembly and Tie
Rod Ends
WARNING
Support the tie rod assembly during maintenance and service
to prevent serious personal injury and damage to components.
CAUTION
Do not heat the arm to remove the tie rod assembly. Heating
the tie rod arm will soften parts. Damage to components will
result.
1. Remove the cotter pins and nuts that fasten each tie rod end to
the tie rod arms. Figure 13.
Figure 13
Figure 11
PITMAN
ARM 1000349b
DRAG
LINK
STEERING
ARM
Figure 12
Figure 13
KEY
STEERING
ARM
NUT
COTTER
PIN
4000693a
TIE ROD END
TIE ROD ARM
TIE ROD
4003894c
TP-15123
(16579) Issued 01-16
Printed in USA Copyright Meritor, Inc., 2016 Page 11
2. Disconnect the tie rod assembly from the tie rod arm. If
necessary, use a tie rod end puller to separate the tie rod end
from the tie rod arm.
3. Disconnect any steering linkage attached to the tie rod arms.
4. Remove the cotter pin and nut that secures the tie rod arms in
the knuckle.
WARNING
Use a brass or leather mallet for assembly and disassembly
procedures. Do not hit steel parts with a steel hammer. Pieces
of a part can break off and cause serious personal injury.
5. Remove the tie rod arms from the knuckle. If necessary tap on
the end of the arm with a leather or plastic mallet to separate
the arm from the knuckle. Keep these parts for reuse.
6. If necessary, remove the tie rod ends from the tie rod.
Figure 14.
A. Mark the position where each tie rod end is installed in
the tie rod. The length of the tie rod and the position of the
tie rod ends determines wheel toe-in.
B. Remove the bolts and nuts from the clamp on the tie rod.
C. Remove the tie rod ends from the tie rod.
Figure 14
Remove the Threaded King Pin Caps, Draw Keys,
King Pin and Knuckle
1. Remove the top and bottom king pin caps. Figure 15.
Figure 15
2. Use the following procedure to remove the upper and lower
draw keys from the knuckle.
A. Loosen the draw key nut. Use a brass drift and a hammer
to hit the end of the draw key. Figure 16.
B. Remove the nut from the draw key. Figure 17. Remove
the draw key from the knuckle.
Figure 16
Figure 14
TIE ROD END
TUBE SLOT MARKS
TIE ROD
4003895a
Figure 15
Figure 16
CAP
1000030b
LOCKNUT AND
DRAW KEY
4003898a
TP-15123
Issued 01-16 (16579)
Page 12 Copyright Meritor, Inc., 2016 Printed in USA
Figure 17
3. Use the following procedure to prevent damage to the bushings
during king pin removal.
A. Use a hammer and brass drift to remove the king pins
from the knuckle. Figure 18.
B. Remove any flaring on the drift that touches the bushings.
C. Wrap tape to a thickness of 1/16-inch (1.5 mm) onto the
end of the drift.
Figure 18
4. Remove the king pin. Keep the part. If the king pin is hard to
remove, use a hydraulic king pin remover. To obtain this tool,
contact Meritor’s Commercial Vehicle Aftermarket at
888-725-9355.
5. Remove the knuckle/spindle from the axle center. Discard the
knuckle/spindle. Figure 19.
Figure 19
6. Remove the shims and thrust bearing. Keep these parts for
reuse.
7. Verify the length of the stop bolt. Remove the stop bolt from the
knuckle. The stop bolt will be reused on the replacement
knuckle.
8. Remove and discard the torque plate. Keep the fasteners for
reuse.
Figure 17
Figure 18
DRAW
NUT KEY 1000032b
BRASS
DRIFT
TOOL
KING
PIN 1000033b
Figure 19
THRUST
BEARING
AND SEAL
ASSEMBLY
KNUCKLE
SHIMS
4003899a
TP-15123
(16579) Issued 01-16
Printed in USA Copyright Meritor, Inc., 2016 Page 13
Assembly and Installation Procedures
In this section, the conventional bearing components will be
assembled. This will include replacement knuckles/spindles, torque
plates, hubs and rotors, bearings, spindle nut packs and hub covers.
Install the Inner Knuckle Bushing Seal
1. Place the knuckle in a vise with brass jaws so that the jaws
hold the top of the knuckle. The bottom of the knuckle must be
toward you.
2. Place the seal into the bottom of the top knuckle bore. Verify
that the open V-lip of the seal is away from the bushing to
allow grease to purge. Figure 20.
Figure 20
WARNING
Use a brass or synthetic mallet for assembly and disassembly
procedures. Do not hit steel parts with a steel hammer. Pieces
of a part can break off. Serious personal injury and damage to
components can result.
3. Use a brass drift, hammer and correct size driver or socket to
install the seal. Install the seal until the top of the seal is even
with the machined surface of the knuckle. Figure 20.
4. Turn the knuckle over into the vise. The jaws of the vise must
hold the bottom of the knuckle. The top of the knuckle must be
toward you.
5. Place the seal in the top of the bottom knuckle bore. Verify that
the lip of the seal is away from the bore.
6. Repeat Step 3 of this procedure.
Install the Knuckle
1. Clean the knuckle bores and axle center.
2. Place the knuckle onto the axle center.
3. Thoroughly pack the thrust bearing rollers with grease.
4. Prior to installation, locate the top of the thrust bearing
assembly. The thrust bearing assembly must be installed with
the correct orientation as follows. Figure 21.
NOTE: The thrust bearings have the seal integrated with the
bearing assembly.
The surface with the inner diameter seal must be on top.
The surface with the outer diameter lip seal must be on the
bottom.
Figure 21
5. Slide the seal and thrust bearing assembly between the bottom
of the axle center and knuckle. Verify that the seal is toward the
axle center and over the thrust bearing. Figure 22.
Figure 20
BRONZE DRIFT
KNUCKLE BORE
MACHINED SURFACE
BUSHING
4003913a
Figure 21
INNER
DIAMETER
SEAL
TOP
TOP
BOTTOM
INTEGRATED
GREASE SEAL,
RUBBER LIP 4003914a
TP-15123
Issued 01-16 (16579)
Page 14 Copyright Meritor, Inc., 2016 Printed in USA
Figure 22
WARNING
Wear gloves when holding shims. Shims have sharp edges and
can cause serious personal injury.
6. Install the shims.
A. Inspect the shims. Replace any damaged shims.
B. If a new shim pack must be determined, select the
amount of shims that will give the least end play:
0.001-inch minimum to 0.010-inch maximum.
(0.025-0.254 mm).
C. Place a pry bar between the steering arm boss and the
axle beam. Lift the knuckle and slide the shim pack
between the top of the axle center and the knuckle.
Figure 23.
Figure 23
D. Verify that the bores of the knuckle, axle center, shims,
seals and thrust bearing are aligned. If these parts are not
aligned, parts will be damaged when the king pin is
installed.
E. Remove the pry bar.
7. Install the king pin. Figure 24.
Figure 24
A. Apply a specified lubricant to the bottom half of the king
pin.
B. Install the king pin in the top of the knuckle. Verify that the
word “TOP” that is stamped on the king pin is toward you.
C. Rotate the king pin so that the draw key slots in the pin
are aligned with the holes in the axle center.
CAUTION
Do not force the pin through the top bushing. The shims will be
damaged.
D. Push the king pin through the top bushing, bushing seal
and shim pack. If the king pin is difficult to install, verify
that all the parts are aligned.
E. After the king pin is through the shim pack, push the king
pin into the bottom bushing. If necessary, use a brass
hammer to drive the king pin into the bushing. Verify that
the axle center, spindle and thrust bearing and bushing
seal are aligned.
F. Verify that the draw key slots in the pin are aligned with
the holes in the axle center.
NOTE: Do not drive the draw keys into the knuckle until after
the end play is checked and adjusted.
Figure 22
Figure 23
4003916a
PRY BAR
SHIM
4003917a
Figure 24
“TOP”
KING PIN
4003918a
TP-15123
(16579) Issued 01-16
Printed in USA Copyright Meritor, Inc., 2016 Page 15
8. Install the upper draw key with the nut to the front of the axle.
Install the lower draw key with the nut to the rear of the axle.
Verify that the key is aligned with the slot in the pin. Seat both
draw keys with a hammer. Figure 25.
Figure 25
9. Rotate the knuckle in both directions to ensure it moves freely.
10. Use an impact gun to tighten the draw key nuts to 30-55 lb-ft
(41-75 Nm). @
11. Check the knuckle end play. Refer to the procedure in this
section.
Check the Knuckle End Play
Wheel Removed from the Spindle
1. Hit the top boss of the knuckle with a rubber mallet to move all
parts into position.
2. Turn the knuckle to the straight or forward position.
3. Attach a dial indicator. Place the base of the indicator onto the
knuckle assembly. Place the tip of the indicator onto the center
of the king pin. Place the dial indicator on the ZERO position.
Figure 26.
Figure 26
WARNING
If a hydraulic jack is used to measure end play, use safety
stands to support the axle. If safety stands are not used, the
axle can fall and cause serious personal injury.
4. Use one of the following procedures to measure end play.
Place the pry bar between the knuckle and the top of the
axle center. Pull the knuckle upward and measure the end
play. Figure 27.
Place a block of wood and hydraulic jack under the bottom
of the knuckle. Raise the knuckle until the pointer on the
dial indicator stops. Figure 28.
Figure 27
Figure 25
4003919a
Figure 26
Figure 27
MAGNETIC BASE
LOCATED AT
EITHER PLACE
4003920a
4003921a
TP-15123
Issued 01-16 (16579)
Page 16 Copyright Meritor, Inc., 2016 Printed in USA
Figure 28
5. Repeat Steps 3-4 with the axle in the full right turn and full left
turn positions.
6. End play must measure 0.001-0.025-inch (0.025-0.635 mm)
in all axle positions.
If the knuckle binds or ZERO end play is measured:
Remove shims from the shim pack.
If more than 0.025-inch (0.635 mm) end play is
measured: Add shims to the shim pack.
Wheel Installed on the Spindle
1. Install a dial indicator. Verify that the base of indicator is on the
axle center. Verify that the tip of the indicator is on the center of
the knuckle cap. The tip of the indicator can also be placed
onto the knuckle. Figure 29.
Figure 29
2. Use a lever to lift the knuckle to measure the end play.
3. End play should measure 0.001-0.010-inch
(0.025-0.254 mm) maximum on both knuckles.
If the knuckle is binding or ZERO end play is measured:
Remove shims from the shim pack.
If more than 0.010-inch (0.254 mm) end play is
measured: Add shims to the shim pack.
Install the Draw Key Locknuts and King Pin Caps
CAUTION
Verify that the draw key is installed completely and the locknut
is tightened to the specified torque. If the draw key is not
installed correctly, the king pin and the axle center will be
damaged.
1. Install the locknut on the threaded draw keys and tighten to
30-55 lb-ft (41-75 Nm). Figure 30. @
Figure 30
2. For FH 941 and FH 946 axles, apply sealant 360 degrees
around the first thread of the king pin cap and install the top
and bottom threaded king pin caps. Tighten to 100-120 lb-ft
(135-160 Nm). Figure 31. @
Figure 28
Figure 29
WOOD BLOCK
4003922a
4003923a
Figure 30
30-55 LB-FT
(41-75 N•m)
4003924b
TP-15123
(16579) Issued 01-16
Printed in USA Copyright Meritor, Inc., 2016 Page 17
Figure 31
Install the Tie Rod Arms and Steering Arms
1. Install the key in the slot at the tapered end of the arm. Press
the key into slot. Do not mix the arm key and slot types.
For a square key, position flush to the shoulder of the arm
taper.
For a woodruff key, position in the slot provided.
2. Install the tie rod arm in the knuckle.
CAUTION
Tighten the tie rod arm nuts to the specified torque. If the nuts
are not tightened to the specified torque, the tie rod arm,
Pitman arm or knuckle will be damaged.
3. Install the nut that fastens the tie rod arm to the knuckle.
Tighten the nut to 775-1050 lb-ft (1051-1424 Nm) and up to
1450 lb-ft (1965 Nm) to align the cotter pin.
4. Install the cotter pins. If the holes are not aligned, tighten the
nut to the next hole in the nut. Do not loosen the nut to install
the cotter pin.
5. Check and, if necessary, adjust toe-in. Refer to the procedures
in this publication.
Install the Tie Rod Assembly and Tie Rod Ends
The tie rod has right-hand threads on one end and left-hand threads
on other end. Verify that the correct tie rod ends are installed on the
tie rod.
1. If removed, install the tire rod ends on the tie rod. Install the tie
rod ends to the position marked during removal. Figure 32.
If new tie rod ends are installed: Thread the tie rod ends
equally on each side of the tie rod to the overall required
length.
Figure 32
2. Install the nuts and bolts in the clamps on the tie rod. The
clamps should be positioned 1/4-inch (6.35 mm) from the end
of the tie rod tube. Tighten the nuts and bolts. Figure 33.
For a 5/8″-11 clamp bolt on a tie rod tube up to
1.75-inches in diameter: 40-60 lb-ft (55-81 Nm). @
For a 5/8″-11 clamp bolt on a tie rod tube 2-2.5-inches in
diameter: 80-90 lb-ft (109-122 Nm). @
For a 3/4″-10 clamp bolt: 155-175 lb-ft (210-237 Nm).
@
Figure 33
3. Clean and dry the tie rod end taper and the tie rod arm tapered
hole.
4. Connect the tie rod ends into the tie rod arms on the knuckle.
5. Install the nuts that fasten the tie rod ends to the tie rod arms.
Tighten the nuts to 160-215 lb-ft (217-292 Nm) and up to
320 lb-ft (434 Nm) to align the cotter pin. Figure 34. @
Figure 31
THREADED
KING PIN
CAP
4003925b
CAP
GASKET
FH 941 AND
FH 946 AXLES
Figure 32
Figure 33
TIE ROD END
TUBE SLOT MARKS
TIE ROD
4003895a
4007897b
TIE ROD
END
The clamp
should be
1/4″ (6.35 mm)
from the end
of the tube.
TP-15123
Issued 01-16 (16579)
Page 18 Copyright Meritor, Inc., 2016 Printed in USA
Figure 34
6. Install the cotter pins. If the holes are not aligned, tighten the
nut to the next hole in the nut. Do not loosen the nut to install
the cotter pin.
7. Check and, if necessary, adjust toe-in. Refer to the procedures
in this publication.
Adjust the Steering Stop
CAUTION
In power steering systems, the hydraulic pressure should
relieve or “drop off” at the end of the steering stroke (with
0.125-inch or 3 mm minimum clearance at the stop bolt). If the
pressure does not relieve, the components of the front axle will
be damaged.
Return the stop bolt to the original setting. Stop bolt length is shown
in Figure 35.
Figure 35
Table I: Original Stop Bolt Setting
For power steering systems, the stop bolt must not touch the beam.
The stop bolt must always have a minimum clearance of 0.125-inch
(3 mm). Figure 36.
Figure 36
For manual steering systems, Meritor recommends a stop bolt
clearance of 0.125-inch (3 mm). Stop bolt contact is acceptable if
no other stops are used for the maximum turn angle of the steering
knuckle. Figure 36.
1. Place a 0.125-inch (3 mm) spacer between the stop bolt and
the boss on the axle beam.
2. Turn the steering wheel until the boss on the axle beam
touches the spacer in front of the stop bolt. Measure the turn
angle. Figure 36.
3. If the maximum turn angle does not meet vehicle
manufacturer’s specifications, correct the maximum angle. In a
power steering system, adjust the pressure relief. In a manual
steering system, follow guidelines and specifications from the
vehicle manufacturer.
4. When the maximum turn angle is correct, loosen the stop bolt
jam nut. Figure 36. Insert a 0.125-inch (3 mm) spacer and
adjust the stop bolt. Tighten the jam nut to 65-85 lb-ft
(68-101 Nm). @
Figure 34
Figure 35
TIE ROD END
TIE ROD ARM
TIE ROD
4003894c
4012363a
KNUCKLE
STOP
BOLT
LENGTH
AXLE
BEAM
NUT
STOP
BOLT
Axle Turn Angle Stand Out Length
FH941 MTA-51 L=1.906″*
FH946 MTA-12 L=TBD*
*Re-use the stop bolt. Verify the length prior to removal from the
unitized wheel-end knuckle.
Figure 36
TWO-PIECE STEERING STOP BOLT
STOP BOLT
JAM NUT
0.125″ (3 MM)
SPACER
AXLE
BEAM
STOP
SCREW
BOSS
TWO-PIECE
STOP BOLT
ASSEMBLY
MAXIMUM
TURN
ANGLE
4003929a
TP-15123
(16579) Issued 01-16
Printed in USA Copyright Meritor, Inc., 2016 Page 19
Adjust the Pressure Relief in the Power Steering
System (Setting Maximum Turn Angle)
The pressure relief in the power steering system stops or reduces
forces applied to the axle when the wheel is moved in the full turn
position.
Check the pressure relief if the steering arm is damaged or the
power steering gear is serviced.
Two types of systems are used to adjust the pressure relief.
Mechanical stop on the Pitman arm or in the assist cylinder
Hydraulic pressure relief in the power steering gear
Install the ABS Sensor
NOTE: The new replacement knuckles and spindles should already
have the ABS bushings pre-installed. The ABS bushing should have
a 0.87-inch (22 mm) standout from the knuckle flange face.
1. Apply a light coat of grease to the bore of the ABS bushing.
2. Squeeze the spring clip and install it into the ABS bushing from
the inside face. Ensure that the tabs are bottomed out.
Figure 37.
Figure 37
3. Grease the inside diameter of the spring clip and ABS sensor
body. Push the ABS sensor in until it bottoms out.
Install the Torque Plate to the Knuckle Assembly
1. Verify the LH and RH positions and orientations for each torque
plate. The face with the added wing material should be to the
inboard side. Figure 38.
Figure 38
2. Check the brake angle for the axle specification. Refer to Table
A through Table H in the Kits section of this publication for
brake angle information.
3. Verify that the torque plate bolt holes and ABS holes are
aligned with each other.
4. For FH941 and FH946 model axles, install the bolts from the
outside face and the washers and nuts on the inside face.
Tighten the nuts to 310-400 lb-ft (420-540 Nm). Figure 39.
@
Figure 39
5. For the MC14/MC16 axles, install the bolts through both the
torque plate and the spindle and into the threaded holes in the
frame. Ensure that ABS sensor is installed prior to clamping the
parts together. Tighten the bolts to 326-420 lb-ft
(440-570 Nm). @
Figure 37
4012482a
Squeeze
spring clip
to start in
the bore.
Tabs must bottom
out against the
bushing.
Figure 38
Figure 39
4012483a
TORQUE
Check to PLATE
ensure the
brake angle
is correct. SPINDLE
4012484a
WASHER
NUT
BOLT
TP-15123
Issued 01-16 (16579)
Page 20 Copyright Meritor, Inc., 2016 Printed in USA
Install the Conventional Wheel End
Hub Assembly Installation — Grease-Lubricated Wheel Ends
1. Lubricate both the inner and outer wheel bearings. Using a
bearing grease packer or by hand, force the specified grease
into the cavities between the rollers and cage.
2. Insert the inner wheel bearing into the hub bore.
3. Install a new grease/oil seal using the correct seal driver. Refer
to Figure 51.
4. Carefully install the hub and rotor assembly onto the spindle.
Ensure that the assembly is correctly seated.
5. Pack the hub between the bearing cups with the specified
grease, up to the level of the smallest diameter of the cups
360 degrees around. Figure 40.
Figure 40
6. Insert the outer wheel bearing into the hub bore.
7. Adjust the wheel bearings. Refer to the wheel bearing
adjustment procedure in this section.
8. Install the gasket and hubcap with the capscrews and flat
washers. Tighten the capscrews to 6 lb-ft (8.13 Nm)
maximum using a star pattern. Then use a star pattern to apply
a final torque of 12-18 lb-ft (16-24 Nm). For models with CR
Zytel hubcaps, apply a final torque of 12-16 lb-ft (16-22 Nm).
@
Hub Assembly Installation — Oil-Lubricated Wheel Ends
1. Lubricate both the inner and outer bearings with oil.
2. Insert the inner wheel bearing into the hub bore. The bearing
cups must be pressed tight against the shoulder in the hubs.
3. Install a new oil seal using the correct driver. Refer to
Figure 51.
4. Install the hub onto the spindle. Install the outer wheel bearing
cone in the hub. Install the adjusting nut.
5. Adjust the wheel bearings. Refer to the wheel bearing
adjustment procedure in this section.
6. Install the gasket and hubcap with the capscrews and flat
washers. Tighten the capscrews to 6 lb-ft (8.13 Nm)
maximum using a star pattern. Then use a star pattern to apply
a final torque of 12-18 lb-ft (16-24 Nm). For models with CR
Zytel hubcaps, apply a final torque of 12-16 lb-ft (16-22 Nm).
@
7. Remove the fill plug and add the specified oil to the correct
level. Reinstall the fill plug.
NOTE: Approximately 21.3 ounces (630 ml) of oil is required to
fill each hub.
8. Rotate the wheel end to ensure distribution of the oil.
9. Recheck the level on the cap. If the oil level is not at the
specified level on the cap, remove the fill plug. Add the
specified oil until the oil is at the correct level. Figure 41.
Figure 41
Adjust the Wheel Bearings
1. Secure the hub assembly on the spindle using the outer wheel
bearing adjusting nut. The adjusting nut must be installed so
that the nipple faces outward toward the hubcap. Tighten
finger-tight.
2. Tighten the adjusting nut to 150 lb-ft (203 Nm) while rotating
the hub. Rotate the hub a minimum of five times while
tightening the nut. This will ensure correct bearing-to-hub bore
contact. @
3. Loosen the adjusting nut completely. Retighten to 50 lb-ft
(68 Nm) while rotating the hub. @
4. Back off the outer wheel bearing adjusting nut 1/4 turn.
Figure 40
LUBE
4003936a
Figure 41
OIL LEVEL
4003937a
TP-15123
(16579) Issued 01-16
Printed in USA Copyright Meritor, Inc., 2016 Page 21
5. Install the D-style pierced lock ring so that it passes through
the flat on the spindle. Ensure that the adjusting nut nipple
engages one of the through holes on the lock ring.
6. Install the D-style lock washer so that it passes through the flat
on the spindle.
7. Install the outer wheel bearing jam nut. Tighten to 200-300
lb-ft (271-407 Nm). @
8. Measure bearing end play with a dial indicator. Bearing end
play should be 0.001 to 0.005-inch (0.025-0.127 mm).
9. If necessary, adjust bearing end play to obtain the correct dial
indicator reading.
10. Bend one side of the D-style lock washer over the outer wheel
bearing jam nut to lock it in position.
Install the Brake Assembly
Install the disc brake caliper assembly onto the torque plate. Refer
to Maintenance Manual MM-0467, EX+™ Disc Brake, for more
information.
Vehicle Checks
Check and Adjust the Wheel Bearings
1. Park the vehicle on a level surface. Block the wheels to prevent
the vehicle from moving.
2. Use a jack to raise the vehicle so that the wheels to be serviced
are off the ground. Support the vehicle with safety stands.
3. Remove the wheel and tire assembly from the hub. If using oil
lube hubs, drain the oil from the hubcap.
4. Remove the capscrews that fasten the cap to the hub. Remove
the gasket and cap.
5. Attach a dial indicator with the magnetic base at the center of
the spindle. Adjust the dial indicator so that the pointer is
against the hubcap gasket face. Set the dial indicator on ZERO.
Figure 42.
Figure 42
6. Measure the end play by pushing and pulling on each side of
the hub while looking at the dial indicator. The end play is the
total travel observed. Do not push or pull at the top and the
bottom of the hub. Pushing or pulling at the top and the bottom
will not give a true reading of the end play.
If the end play is not within 0.001-0.005-inch
(0.025-0.127 mm): Adjust the wheel bearings.
7. If necessary, adjust the wheel bearings according to the
procedure in Step 11.
8. Bend the lock washer off the flats of the jam nut. Remove the
jam nut, jam nut washer and pierced lock ring.
WARNING
When performing a wheel bearing adjustment:
Always use the correct size wrench socket.
Always use a torque wrench to tighten the adjusting nuts to
their correct adjusting torques.
Never attempt to tighten or loosen the adjusting nuts by
either hitting them directly with a hammer or by hitting a
chisel or a drift placed against them with a hammer. Failure
to do this can damage the nuts, prevent a correct wheel
bearing adjustment from being achieved, and cause
possible loss of vehicle wheel-end equipment and serious
personal injury.
9. Use the torque wrench to tighten the adjusting nut to 150 lb-ft
(203 Nm) while rotating the hub in both directions. @
10. Loosen the nut completely and then tighten the nut to 50 lb-ft
(68 Nm) while rotating the hub. @
11. Adjust the wheel bearings. Figure 43.
Figure 43
A. Back off the adjusting nut 1/4 turn.
Figure 42
4012457a
DIAL
INDICATOR
Figure 43
ADJUSTING
NUT
JAM NUT
LOCK
HUBCAP WASHER
JAM NUT
ALL MODELS WITH GREASE-LUBRICATED
WHEEL ENDS
PIERCED
LOCK RING
4003896b
TP-15123
Issued 01-16 (16579)
Page 22 Copyright Meritor, Inc., 2016 Printed in USA
B. Install the pierced lock ring, lock washer and jam nut.
C. Tighten a 1.75-inch threaded jam nut to 200-300 lb-ft
(271-407 Nm). @
D. Measure the wheel end play to verify that the end play is
0.001-0.005-inch (0.025-0.127 mm) or Steps A-C must
be repeated. If end play exceeds 0.005-inch (0.127 mm),
reduce the amount the adjusting nut is backed off in Step
A.
E. When the correct end play is achieved, lock the jam nut in
place by bending the edge of the jam nut lock washer
over one flat of the jam nut.
12. Measure the end play by pushing and pulling on the horizontal
axis of the hub while looking at the dial indicator. The end play
is the total travel observed.
If the end play is not within specifications: Adjust the
wheel bearings.
13. Install the gasket and hubcap with the capscrews and flat
washers. Tighten the capscrews to 6 lb-ft (8.13 Nm)
maximum using a star pattern. Then use a star pattern to apply
a final torque of 12-18 lb-ft (16-24 Nm). For models with CR
Zytel hubcaps, apply a final torque of 12-16 lb-ft (16-22 Nm).
@
14. Install the tire and wheel assembly.
15. Lower the vehicle to ground. Check the brake operation.
16. If necessary, refill the oil lube hub reservoir. Refer to the
procedures in this publication.
Adjustments
Adjust Toe-In
Specification:
Unloaded: 1/16″ ± 1/32″ (1.587 mm ± 0.0312 mm)
Loaded: 1/32″ ± 1/32″ (0.794 mm ± 0.794 mm)
CAUTION
Most tire wear is caused by incorrect toe settings. Do not
change camber or caster settings to correct tire wear
problems. If the axle assembly is bent to change caster or
camber, the strength of the axle is reduced and the warranty is
voided. An axle damaged by bending can cause a vehicle
accident and result in serious personal injury.
1. Park the vehicle on a level surface. Block the wheels to prevent
the vehicle from moving.
2. Use a jack to raise the vehicle so that the wheels to be serviced
are off the ground. Support the vehicle with safety stands.
3. Use paint or chalk to mark the center area of both front tires
around the complete outer surface of the tire.
4. Place the pointers of the trammel bar on the marks of each
tire. Rotate tires. Verify that the straight line is marked on the
outer surface of the tire.
5. Lower the vehicle to the floor. Move the vehicle forward and
backward 10 feet (3 meters).
6. Place a trammel bar at back of tires. Align the pointers with the
marks on the tires. Raise the pointers so that they are even
with the spindles. Measure and record the distance between
pointers.
7. Place a trammel bar at the front of the tires. Align the pointers
with the marks on tires. Raise the pointers so they are even
with the spindles. Measure and record the distance between
the pointers. Figure 44.
Figure 44
8. To get toe-in measurement, subtract the reading of the front of
the tires from the reading at the back of the tires. Figure 45.
Figure 45
9. If the toe-in measurement is not at the specified distance, use
the following procedure.
A. Loosen the nut and bolt on each end of the tie rod
clamps.
Figure 44
Figure 45
4003930a
FRONT
B MINUS A EQUALS TOE-IN
A
B
4003931a
TP-15123
(16579) Issued 01-16
Printed in USA Copyright Meritor, Inc., 2016 Page 23
B. Turn the tie rod until the specified toe-in distance is
obtained.
C. Tighten the nut and bolt on each end of the tie rod clamp.
For a 5/8″-11 clamp bolt: 40-60 lb-ft (55-81 Nm).
@
For a 3/4″-10 clamp bolt: 155-175 lb-ft
(210-237 Nm). @
10. Repeat Steps 1-9 to check the toe-in dimension.
Lubrication
Table J: Front Axle Lubricant Specifications
Lubricate the Tie Rod Ends
Lubricate the ends of the tie rod according to the following
procedure.
1. Park the vehicle on a level surface. Block the wheels to prevent
the vehicle from moving.
2. Verify that the tires touch the ground. Do not raise the vehicle.
3. Use a grease gun to lubricate the assembly. Apply the lubricant
through grease fittings on assembly. Figure 46.
Figure 46
4. Apply the lubricant until new lubricant comes from the boot.
Figure 46.
Pack the Wheel End with Grease —
Grease-Lubricated Wheel Bearings
1. Remove the tire and wheel assembly. Remove and
disassemble the hub. Refer to the procedures in this
publication.
2. Remove the old lubricant from all parts. Discard the seals.
Inspect the wheel bearings for wear or damage. Replace worn
or damaged bearings. Refer to the procedures in this
publication.
3. Using a bearing grease packer or by hand, force the specified
grease into the cavities between the rollers and cage.
4. Pack the hub between the bearing cups with the specified
grease, up to the level of the smallest diameter of the cups
360 degrees around. Figure 47.
Figure 47
5. Install the inner and outer bearing cones into the cups in the
hubs. The bearing cups must be pressed tight against the
shoulder in the hubs.
6. Install new wheel seals in the hubs. Refer to the procedures in
this publication.
7. Install the hub and the wheel and tire assembly. Install the
outer wheel bearing cone in the hub. Install the adjusting nut.
8. Adjust the wheel bearings. Refer to the procedures in this
publication.
Description Lubricant Specification
King Pins, Bushings, Ends of
Tie Rods, Ball Studs on Drag
Link, Wheel Bearings
Multi-Purpose Chassis Grease,
6% 12-hydroxy lithium stearate
grease, NLGI Grade 1, Meritor
Specification O-617-A or
equivalent
Multi-Purpose Chassis Grease,
8% 12-hydroxy lithium stearate
grease, NLGI Grade 2, Meritor
Specification O-617-B or
equivalent
Figure 46
TIE ROD END
Lubricant
must come
from here.
TIE ROD ARM
TIE ROD
4003935b
Figure 47
LUBE
4003936a
TP-15123
Issued 01-16 (16579)
Page 24 Copyright Meritor, Inc., 2016 Printed in USA
Fill the Wheel End with Oil — Oil-Lubricated Wheel
Bearings
1. Clean and inspect the bearings for wear or damage. Replace
any that are worn or damaged.
2. Remove the old lubricant from all parts. Discard the seals.
3. Lubricate and install the inner and outer bearing cones into the
cups in the hubs. The bearing cups must be pressed tight
against the shoulder in the hubs.
4. Install the hub and the wheel and tire assembly. Install the
outer wheel bearing cone in the hub. Install the adjusting nut.
5. Adjust the wheel bearings. Refer to the procedures in this
publication.
6. Install the hubcap assembly.
7. Remove the fill plug and add the specified oil to the correct
level. Reinstall the fill plug.
8. Rotate the wheel end to ensure distribution of the oil.
9. Recheck the level on the cap. If the oil level is not at the
specified level on the cap, remove the fill plug. Add the
specified oil until the oil is at the correct level. Figure 48.
Figure 48
Lubricate the King Pins
1. Park the vehicle on a level surface. Block the wheels to prevent
the vehicle from moving.
2. Verify that the tires touch the ground. Do not raise the vehicle.
You must keep weight on the thrust bearing to better force
grease through the bearing.
3. Clean off all grease fittings prior to lubrication.
4. Lubricate the pins through the grease fittings on the top and
bottom of the knuckle. Figure 49.
Figure 49
5. Apply lubricant until new lubricant comes from the thrust
bearing upper seal and the shim pack.
If grease does not purge: The bushing seals may have
been installed incorrectly. Remove and reinstall the bushing
Figure 48 seals correctly.
OIL LEVEL
4003937a
Figure 49
TOP GREASE
FITTING
SHIM
PACK
Lube must
come from
here.
BOTTOM GREASE
FITTING 4003934b
TP-15123
(16579) Issued 01-16
Printed in USA Copyright Meritor, Inc., 2016 Page 25
Specifications
FH 941 and FH 946 Axles
Figure 50
Table K: Fastener Torque Chart: FH 941 and FH 946 Axles
Figure 50
KING PIN
COTTER PIN
STEERING
KNUCKLE
THREADED
KNUCKLE
CAP
GREASE FITTING
KING PIN CAP
BUSHING
TIE ROD ARM
BOLT
CLAMP
TIE ROD
ARM KEY
TIE ROD
END
TIE ROD CLAMP
LOCKNUT
TIE ROD
ASSEMBLY
TIE ROD
ARM NUT
DRAW KEY NUT
DRAW
KEY
DRAW KEY
DRAW KEY NUT
COTTER PIN
TIE ROD END NUT
SEAL, IF REQUIRED
THRUST BEARING
STOP SCREW
AXLE CENTER
SEAL
SHIMS
STOP SCREW
SEAL LOCKNUT
1
2
6
7
3
5
4
GREASE FITTING
KING PIN CAP
BUSHING
4012362a
STEERING ARM
FH 941 AND FH 946
STEERING ARM
AND KNUCKLE
1A
Item Description Size
Torque Range
lb-ft Nm
1 Tie Rod Arm Nut 1-1/4″-12 775-1050 (up to 1450
maximum1)
1051-1965 (up to 1965
1A Steering Arm Nut maximum1)
2 Threaded Knuckle Cap 2″-20 100-120 135-160
3 Stop Screw Locknut 1/2″-20 50-65 68-88
4 Tie Rod Clamp Locknut 5/8″-11 on Tie Rod Tube
Diameters up to 1.75″
60-80 82-109
5 Standard Tie Rod End Nut 7/8″-14 160-215 (up to 320
maximum1)
217-291 (up to 433
maximum1)
6 Draw Key 7/16″-20 30-55 41-75
7 Grease Fitting 0.125″-27 10 Minimum 14 Minimum
Not shown Hubcap Bolt2 0.375″-16 12-18 16-24
Not shown Filler Plug 15-25 20-34
1 Maximum to align the holes for the cotter pin. Refer to the tie rod cotter pin assembly procedure in this section.
2 Refer to the hubcap bolt tightening procedure in this section.
TP-15123
Issued 01-16 (16579)
Page 26 Copyright Meritor, Inc., 2016 Printed in USA
FH and MC Series Wheel-End Components
Table L: Wheel-End Torque Specifications
Table M: FH and MC Series Axles — Conventional Wheel-End System Torque Specifications
Appendix
Table N: Wheel-End Oil Change Intervals and Specifications
Axle Model Bolt Joint Fastener Size Torque Lb-Ft Torque Nm
FH Series Torque Plate-to-Knuckle 0.75 x 16 310-400 420-540
MC14/MC16 Torque Plate/Spindle/Frame Flange 0.75 x 10 326-420 440-570
FH and MC Series EX+H Carrier-to-Torque Plate Bolts M20 x 1.5 350-450 475-610
FH and MC Series Rotor-to-Hub Attachment 0.625–18 155-195 210-265
FH and MC Series Hub Cap 0.375-16 12-18 16-24
FH and MC Series Hub Cap Filler Plug — 15-25 20-34
* Tighten bolts in a star pattern, repeat pattern to verify. Re-check torques every 30,000 miles, or before.
** Assemble PRO-TORQ™ nut with anti-seize compound on the threads.
Axle
Initial Adjusting
Nut Torque1
1 Rotate the hub a minimum of five complete turns while tightening the nut.
Final Adjusting
Nut Torque2
2 The nut may need to be slightly tightened or loosened to meet the required end play.
Spindle Thread
Diameter
Jam Nut Torque
Specification
Acceptable End
Play Range2
Front
non-drive
steer axles
150 lb-ft
(203 Nm) Back off
1 turn
50 lb-ft (68 Nm) Over 1-1/8″
(28.6 mm), less
than 2-5/8″
(66.67 mm)
200-300 lb-ft
(272-408 Nm)
0.001″-0.005″
Back off 1/4 turn (0.025-0.127 mm)
for 1-3/4″
(44.45 mm) and
over
NOTE: For disc brake wheel ends, back off the brake caliper until the rotor is clear from the pad linings about 1/16-inch (1.588 mm) gap or
more. Refer to Maintenance Manual MM-0467, EX+™ Air Disc Brake, for more information. To obtain this publication, visit Literature on
Demand at meritor.com.
On-Highway Operation Intervals
Meritor
Specifications
Military
Specification Oil Description
Outside Temperature
Check Oil
Level
Petroleum Oil
Change
°F °C
Min. Max. Min. Max.
1,000 miles
(1600 km)
Whichever comes
first:
Seals replaced
Brakes relined
30,000 miles (48
280 km)
Twice a year
O-76A Gear Oil MIL-L-2105-D GL-5, SAE 85W/140 10 None 12 None
O-76D Gear Oil GL-5, SAE 80W/90 –15 None –26 None
O-76E Gear Oil GL-5, SAE 75W/90 –40 None –40 None
O-76J Gear Oil GL-5, SAE 75W –40 36 –40 2
Heavy-Duty Engine
Oil
MIL-L-2104-B,
-C, -D or -E
A.P.I. -CD, -CE, -SF
or -SG SAE 40 or
501
1 Current designations are acceptable. Multi-grade engine oils are acceptable if the SAE rating ends in 40 or 50.
10 None 12 None
Heavy-Duty Engine
Oil
MIL-L-2104-B,
-C, -D or -E
A.P.I. -CD, -CE, -SG,
-SH or -SJ SAE 302
2 Current designations are acceptable. Multi-grade engine oils are acceptable if the SAE rating ends in 30.
–15 None –26 None
TP-15123
(16579) Issued 01-16
Printed in USA Copyright Meritor, Inc., 2016 Page 27
Table O: Front Non-Drive Axle Inspection and Greasing Intervals and Specifications
Special Tools
Component Interval Grease
Meritor
Specification
NLGI
Grade Grease Type
Outside
Temperature
King Pins and
Bushings
Grease every
50,000 miles
(80 000 km) or
once a year,
whichever comes
first
ECL1 TEK-678
or
Multi-Purpose
Grease
1 Meritor standard grease is now available from Engineered Custom Lubricants, 45800 Mast Street, Plymouth, MI 48170, 866-836-3871, www.ecllube.com.
O-704 or
O-617-A
2 or 1 Lithium 12
Hydroxystearat
e, Calcium
Sulphonate
Complex or
Lithium
Complex
Refer to the
grease
manufacturer’s
specifications for
the temperature
service limits.
Ball Studs on
Steering Arm,
Tie Rod Ends,
and Drag Link2
2 Applies to ball studs on Easy Steer Plus™ axles. Sealed axles require inspection of the boot on the ball stud every 100,000 miles (160 000 km) for wear and
damage. Service as necessary.
O-617-B 2
Non-greasable
Perma-Lube Tie
Rod Ends
Inspect every
50,000 miles (80
000 km) or once a
year, whichever
comes first
— — — — —
Brake
Components
Grease whenever
service is
performed
ECL1TEK-678 O-704
(preferred)
2 Calcium
Sulphonate
Complex
−40/+150° C
Description Kent-Moore Tool Number1
1 Obtain Kent-Moore tools from: SPX Service Solutions, 28635 Mound Road, Warren, MI 48092, Phone 866-621-2128, www.servicesolutions.spx.com
Owatonna Tool Number2
2 Obtain Owatonna tools from OTC Toll and Equipment Division, 655 Eisenhower Drive, Owatonna, MN 55060.
Snap-On Tool Number3
3 Refer to your local Snap-On dealer.
King Pin Remover J 36136 4240 20 Ton: CG430HYB
35 Ton: CG730HY
Information contained in this publication was in effect at the time the publication was approved for printing and is subject to
change without notice or liability. Meritor Heavy Vehicle Systems, LLC, reserves the right to revise the information presented or
to discontinue the production of parts described at any time.
Copyright 2016 TP-15123
Meritor, Inc. Issued 01-16
All Rights Reserved Printed in USA (16579)
Meritor Heavy Vehicle Systems, LLC
2135 West Maple Road
Troy, MI 48084 USA
866-OnTrac1 (668-7221)
meritor.com
Figure 51
Figure 51
HUB SEAL DRIVER — TOOL NUMBER 911358 DET 21
4012341a
.12 X 30
3.00
DIA. 2.00
DIA.
0.25 DIA.
.25 R
0.12 R
KNURL
0.12
0.50
5.12
9.62
3.62
3.00
1.75
1.25
2.25
DIA.
0.12 1.68
0.25 R
8.62
45°
2.25
2.63
0.06 R (TYP)
2.94
DIA.
2.9970
DIA.
4.32
DIA.
5.40
DIA.
6.00
DIA.
6.38
DIA.
0.12 X 30° (TYP)
.12 R

SEOCONTENT-END