Technical Service Bulletin FSB593013 — 2010 MACK CHU
EQUIPMENT:ELECTRICAL
Bulletin Details
| TSB ID | FSB593013 |
| Manufacturer | |
| Vehicle | 2010 MACK CHU |
| Component | EQUIPMENT:ELECTRICAL |
| Communication Date |
Bulletin Summary
"GRADE GRIPPER SOLENOID, REPLACEMENT. 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. REPLACEMENT OF THE EXISTING SOLENOID VALVE, ELBOW, AND THE ADDITION OF A NEW VENT WILL ENSURE PROPER FUNCTIONALITY OF THE GRADE GRIPPER FEATURE. "
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
FSB 593-013
ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL
FSB873-020
EQUIPMENT
FSB-364-035
EXTERIOR LIGHTING:TURN SIGNAL:SWITCH
FSB-371-044
ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES