NHTSA ID Number: 10093964
Manufacturer Communication Number: SMB161
Summary
SERVICE MANUAL BULLETIN PROVIDES REVISED INFORMATION ON ZF AVN-132 CENTER AXLE BRAKE CHAMBER, CAGING & UNCAGING.
1 Affected Product
Vehicle
SMB-161
ISSUE DATE: Sep 29 2016
ZF AVN-132 Center Axle Brake Chamber, Caging & Uncaging
2 – REAR & CENTER AXLE & SUSPENSION
This bulletin provides revised OEM Supplier information on caging & uncaging the Knorr-Bremse center axle brake chambers on your New Flyer
Vehicle.
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.
SEOCONTENT-START
SMB-161 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 © 2015 New Flyer
Industries Canada ULC
ISSUE DATE: Sep 29 2016
SMB-161
APPLICABILITY
VEHICLE LENGTH 30ft. 35ft. 40ft. 60ft. ALL
VEHICLE TYPE High Floor Low Floor Invero Xcelsior® ALL
FUEL TYPE
Diesel Electric CNG LNG
ALL
Diesel/Electric Gas/Electric Fuel Cell
SUBJECT ZF AVN-132 Center Axle Brake Chamber, Caging & Uncaging
SECTION TITLE 2 – REAR & CENTER AXLE & SUSPENSION
DETAILS This bulletin provides revised OEM Supplier information on caging &
uncaging the Knorr-Bremse center axle brake chambers on your New
Flyer Vehicle.
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-161
SERVICE MANUAL BULLETIN
SMB-161
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 © 2015 New Flyer
Industries Canada ULC
1. Center Brake Chambers
1.1. Caging
DO NOT use impact tools to cage or
uncage the brake chamber.
Cage the spring brake by rotating the
brake chamber release bolt counter-clockwise.
The force to compress the spring
must not exceed 33 ft-lb. (45 Nm) during
the caging process.
1.2. Uncaging
Uncage the brake chamber by tightening
the release bolt to a torque of 15 ft-lb. (20
Nm) minimum, 52 ft-lb. (70 Nm) maximum.
SMB161
- TYPE - Air Brake Chamber Type 3030 30/30 30 30
- REPLACEMENT - Bendix
165255 K049898 NT3030STD120 NT3030STD-120 802547 // Meritor
3030TN2-HNTRX-C // Dayton 3030C // Haldex
GC3030 GC3030P40 // Freightliner
3030TS // Mack
19QE441RP1 - SPECS - Brake Chamber Type: 3030 // Stroke: Standard // Stroke Length: 2-1/2" // Port Thread: 2x3/8" NPT // Bolt Thread: 5/8"-11 UNC // Push Rod Length: 11-3/4" // Weight: 21lbs
- FEATURES -
- WARRANTY - 1-Year Unlimited Mile Warranty - includes assurances about the quality of the item, as well as a promise to provide replacement if something goes wrong within a set amount of time.
- TYPE - Long Stroke Air Brake Chamber Type 3030
- REPLACEMENT - Haldex
GC3030L LC3030L GC3030LR // Bendix
NT3030ELS80 NT3030ELS99 // Midland 3030054 MBI GC3030LR // Automann 179.SB3030SL // Watson and Chalin 12963 - SPECS - Actuator Type Size: 3030 // Stroke Type: Long // Available Stroke: 3", 76mm // Length from mounting bracket to end of Spring Housing: 9-7/8", 251mm // Length of Piggyback: 7-3/8", 187mm // Dimension at rolled Spring Housing flange: 8-5/16", 211mm // Dimension at Service Clampband: 10-3/16" // Pushrod Length from face of Service Housing: 13" // Weight: 21.8 lbs. , 9.9 kg.
- FEATURES - Superior Power Spring Technology; Advanced powder coating process; Resists corrosion and fatigue // Double O-ring Centerseal; Two o-rings for positive sealing and plastic bearings for long life // World Class Diaphragm; High quality rubber compound, resistant to heat and cold // Rugged Service Housing; 9 gauge steel, powder coated // Self-piloting Dust Shield
- WARRANTY - 1-Year Unlimited Mile Warranty - includes assurances about the quality of the item, as well as a promise to provide replacement if something goes wrong within a set amount of time.
- TYPE - Air Brake Chamber Type 3030 30/30 30 30
- REPLACEMENT - Bendix
165255 // Haldex
GC3030 GC3030P40 // Dayton 3030C - SPECS - Brake Chamber Type: 3030 // Stroke: Standard // Stroke Length: 2-1/2" // Port Thread: 2x3/8" NPT // Bolt Thread: 5/8"-11 UNC // Push Rod Length: 11-3/4" // Weight: 21lbs
- WARRANTY - 1-Year Unlimited Mile Warranty - includes assurances about the quality of the item, as well as a promise to provide replacement if something goes wrong within a set amount of time.
- TYPE - Long Stroke Air Brake Chamber Type 3030 30/30 30 30 Welded Clevis
- REPLACEMENT - Bendix
NT3030ELSWC NT3030ELS-WC // Haldex
GC3030LCW LC3030LCW // Freightliner
HDX1373030215 // Automann 179.SB3030SLW225 // IHC 3541891C91 // Others BTS-3030LS-WCR GTA-3030LS-WCR - SPECS - Actuator Type Size: 3030 // Stroke Type: Long // Available Stroke: 3" // Length from mounting bracket to end of Spring Housing: 9-7/8" // Length of Piggyback: 7-3/8" // Dimension at rolled Spring Housing flange: 8-5/16" // Dimension at Service Clampband: 10-3/16" // Pushrod Length from face of Service Housing: 1" // Distance to Clevis Pin centerline from face of Service Housing: 2-1/4" // Weight: 21.9 lbs.
- FEATURES - Combination with Welded Clevis Long Stroke Size 3030 Square Bosses // Superior Power Spring Technology; Advanced powder coating process; // Resists corrosion and fatigue // Double O-ring Centerseal; Two o-rings for positive sealing and plastic bearings for long life // World Class Diaphragm; High quality rubber compound, resistant to heat and cold // Self-piloting Dust Shield // Sizes to fit all drum brake applications
- WARRANTY - 1-Year Unlimited Mile Warranty - includes assurances about the quality of the item, as well as a promise to provide replacement if something goes wrong within a set amount of time.
- Spring Brake Chamber: Type 24
- Service Brake Chamber: Type 18
- Stroke: 2.25" / 57mm
- 3/8"-18 NPTF Ports
- 18 MONTHS WARRANTY* - This product is covered for one year or completion of 100,000 miles since installation or 18 months after your purchase, whichever comes first. Please check below for complete information.
Last update on 2026-05-27 / Affiliate links / Images from Amazon Product Advertising API
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