WEICHAI & PSI SERVICE MANUALS AVAILABLE ONLINE AT FLYPARTSGUY.COM Weichai America Corp. 2. Check the coolant fittings and hoses for leaks. 2.3 NG Shut-Off Valve Assembly and Disassembly 2.3.1 NG Shut-Off Valve Exploded View Fig. 2-3 Exploded view of electromagnetic valve 2.3.2 NG Shut-Off Valve Disassembly Procedure 1. Remove the bolts and nuts bolting the NG shut-off valve to the gas pipe joint. 2. Remove the bolts and nuts bolting the NG bracket to the NG shut-off valve. Remove the NG shut-off valve. 3. Remove the O-ring from the groove in the NG shut-off valve.
2.3.3 NG Shut-Off Valve Assembly Procedure Replace the O-ring and reverse the Disassembly Procedure (2.3.2) to assemble the NG Electromagnetic Valve. 2.3.4 NG Shut-Off Valve Inspection and Maintenance The inspection and maintenance of the NG shut-off valve must be performed at a special service station. Revision: August 2019 8 GET YOUR WEICHAI & AFTERMARKET SERVICE PARTS AT FLYPARTSGUY.COM