WEICHAI & PSI SERVICE MANUALS AVAILABLE ONLINE AT FLYPARTSGUY.COM Weichai America Corp. 3.6 Engine Control Unit (ECU) Assembly and Disassembly 3.6.1 ECU Exploded View Fig. 3-8 Exploded view of ECU 3.6.2 ECU Disassembly Procedure 1. Remove the fuse box bolts. Remove the fuse box from the bracket. 2. Remove the Harness ECU Connection from the ECU. 3. Remove the ECU bolts. Remove the ECU from the bracket. 3.6.3 ECU Assembly Procedure Reverse the Disassembly Procedure (3.6.2) to assemble the ECU 3.6.4 Inspection and Maintenance of ECU 1. Check to see if any ECU connection pins are corroded, bent, broken, missing, or damaged. Replace the pins if necessary. 2.
Check the plastic portion of the ECU connection for damage. Replace the ECU if there is any damage. 4 Starting System 4.1 Starting System Assembly and Disassembly 4.1.1 Starting System Exploded View The starter is the core component of the starting system. The starter converts battery power to Revision: August 2019 19 GET YOUR WEICHAI & AFTERMARKET SERVICE PARTS AT FLYPARTSGUY.COM