Technical Service Bulletin FSB 593-013 — 2010 MACK CHU
ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL
Bulletin Details
| TSB ID | FSB 593-013 |
| Manufacturer | |
| Vehicle | 2010 MACK CHU |
| Component | ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL |
| Communication Date |
Bulletin Summary
ON SOME MACK CHU, CXU, GU, AND TD TRUCK MODELS BUILT BETWEEN 04/31/2008 AND 05/12/2014, THE SOLENOID VALVE FOR THE GRADE GRIPPER FEATURE IS PRONE TO INTERNAL CONTAMINATION IN HARSH ENVIRONMENTS. THE INTERNAL CONTAMINATION OF THE SOLENOID VALVE IS CAUSED BY THE BUILDUP OF GRIME, SALT, ROAD DEBRIS AND OTHER SOLID CONTAMINANTS. IN SOME CASES, THE BUILD-UP OF SOLID CONTAMINANTS CAUSED THE SOLENOID VALVE TO MALFUNCTION. THE MALFUNCTION CAUSES THE TRAILER BRAKE CIRCUIT TO MAINTAIN TRAILER BRAKE PRESSURE AFTER A GRADE GRIPPER EVENT.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.
Other TSBs for the 2010 MACK CHU
FSB873-020
EQUIPMENT
FSB593013
EQUIPMENT:ELECTRICAL
FSB-364-035
EXTERIOR LIGHTING:TURN SIGNAL:SWITCH
FSB-371-044
ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES