SMB-180 – Crankcase Breather Element – New Flyer Low Floor

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SMB-180 1 of 2
SERVICE MANUAL BULLETIN
This Service Manual Bulletin is prepared by the Publications Department of New Flyer Industries
Canada ULC. Refer to details below.
The New Flyer vehicles described in this manual may be protected by one or more
patents and design applications or registrations in the United States and Canada,
and in other countries. Refer to “Vehicle Patent Information” in this manual.
Copyright © 2018 New Flyer Industries Canada ULC
ISSUE DATE: August 17, 2018
SMB-180
APPLICABILITY
VEHICLE LENGTH  30ft.  35ft.  40ft.  60ft.  ALL
VEHICLE TYPE
 Xcelsior®  MiDi®  Invero®
 ALL
 Low Floor  High Floor
FUEL TYPE
 Diesel  Diesel/Electric  CNG  LNG
 ALL
 Fuel Cell  Trolley/Electric  Battery/Electric
SUBJECT Crankcase Breather Element
SECTION TITLE PM – Preventive Maintenance
DETAILS This bulletin provides corrected Preventive Maintenace Interval for the
crankcase breather element on your New Flyer vehicle.
This bulletin applies to vehicles with a Cummins ISL 07 or ISL 09 engine.
This information supersedes any prior information on this subject
already provided in your New Flyer Service Manuals. Make this Service
Bulletin available to service personnel to inform them of changed information.
2 of 2 SMB-180
SERVICE MANUAL BULLETIN
SMB-180
The New Flyer vehicles described in this manual may be protected by one or more
patents and design applications or registrations in the United States and Canada,
and in other countries. Refer to “Vehicle Patent Information” in this manual.
Copyright © 2018 New Flyer Industries Canada ULC
1. 60,000 Miles (96,000 km)
Preventive Maintenance
1.1. Cummins Engines ISL 07 &
ISL 09
1.1.1. Crankcase Breather Element
Replace the crankcase breather element
every 60,000 miles (96,000 km) or 2,000
hours, whichever occurs first.
1.1.1.1. Removal
1. Set the Battery Disconnect switch to the
OFF position.
2. Steam clean the crankcase breather cover
area and dry with compressed air.
3. Remove the eleven bolts that attach the
crankcase breather cover to the crankcase
breather base. See “Fig. 2: Crankcase
Breather” on page 2.
☞NOTE:
The six bolts that attach the breather base
to the valve cover do not need to be
removed.
4. Remove the breather cover.
5. Remove the breather element from the
breather base and discard.
Fig. 2: Crankcase Breather
2.0.0.1. Inspection & Cleaning
1. Inspect the breather cover and base for
cracks or other damage.
2. Clean any debris or sludge buildup from
inside the breather cover and base. Be
careful not to allow debris or cleaning fluid
to enter the crankcase when cleaning the
breather base.
2.0.0.2. Installation
1. Lubricate the O-ring on the new breather
element with engine oil.
2. Install the new breather element onto the
breather base.
3. Install the breather cover using eleven
bolts. Torque bolts to 44 in-lb. (5 Nm) in the
sequence shown. See “Fig. 3: Breather
Cover Torque Sequence” on page 2.
Fig. 3: Breather Cover Torque Sequence
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10 6 2 3 7
11
9 5 1 4 8
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