DRIVE GP-FINAL 3530608 - Caterpillar

2. Disconnect tube assembly (1) from regulator fitting.3. Remove two bolts (2) and elbow from regulator. 4. Remove four bolts (3) and gas pressure regulator (4) from engine.Install Gas Pressure Regulator
1. Put regulator (1) in position on bracket and install four bolts. 2. Inspect O-ring seal (3) and make a replacement if necessary.3. Put elbow (4) in position and install two bolts.4. Install tube assembly (2) to elbow fitting.5. Turn on gas supply.Disassemble Gas Pressure Regulator
start by:a) remove gas pressure regulator 1. Remove eight bolts (1) and regulator cover (2). 2. Remove upper spring seat (6), spring (5) and lower spring seat (4).3. Remove diaphragm assembly (3). 4. Remove bolt (12) and pusher post (7). Remove head gasket (8), heads (9) and (11) from diaphragm (10). 5. Remove pin (14) and lever (13).6. Remove valve stem assembly (15). 7. Remove three screws (16) and orifice (17). 8. Remove stem (18), spring (21), lower flapper (19), upper flapper (22) and spring (20). Assemble Gas Pressure Regulator
1. Install spring (3), upper flapper (5), lower flapper (2), spring (4) and stem (1) in position in the regulator housing. 2. Put orifice (6) in position and install three screws. 3. Put valve stem assembly (8) in regulator housing. Put lever (9) in position and install pin (7). 4. Put together the diaphragm assembly in the sequence as follows: pusher post (10), head gasket (15), head (11), diaphragm (12), head (13) and screw (14). 5. Install lower spring seat (19), spring (17) and upper spring seat in position on the diaphragm assembly.6. Make an alignment of the diaphragm assembly with the regulator body (18) and the regulator cover (16). Install bolts.