SHIM 0860415 - Caterpillar

Disassembly Procedure
Start By:
Remove the gas pressure regulator.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g00592537
Position the gas pressure regulator (1) on a suitable bench.
Illustration 2 g00595577
Loosen the jam nut (2).
Be sure to loosen the adjusting screw. There is extreme spring pressure which could cause personal injury if the adjusting screw is not loosened.
Loosen the adjusting screw. Note: Count the number of rotations. This is done so that the adjusting screw can be returned to the original position.
Illustration 3 g00595580
Remove the tube assembly (4).
Remove the tube assembly (5).
Illustration 4 g00595582
Remove the valve (6).
Illustration 5 g00595584
Remove the body (7) from the element assembly (8).
Illustration 6 g00595587
(7) Body. (9) Screw. (10) Washer. (11) Element. (12) Washer. (13) Cap.
Disassemble the element assembly (8).
Illustration 7 g00595590
Remove the eight bolts (15).
Remove the housing (14).
Illustration 8 g00595593
Remove the washer (16) and the spring (17).
Illustration 9 g00595596
Remove the fitting (18).
Turn over the gas pressure regulator.
Illustration 10 g00595600
Remove the four bolts (20).
Remove the housing (19) and the gasket. Check the gasket for damage. If necessary, replace the gasket. Note: Use care when you remove the spring from the housing. The spring is under pressure.
Illustration 11 g00595603
Remove the retainer (21) and spring (22). Note: Count the number of revolutions. This is done so that the threaded retainer can be returned to the proper position.
Personal injury can result from parts and/or covers under spring pressure.Spring force will be released when covers are removed.Be prepared to hold spring loaded covers as the bolts are loosened.
Illustration 12 g00595605
Remove the twelve bolts (24) from the housing (23).
Illustration 13 g00595743
Remove the cover (23) with the shaft and the diaphragm together. Note: The shaft and the diaphragm must be removed from the arm assembly for removal.
Illustration 14 g00595744
Remove the lower brass fitting (25).
Turn over the housing.
Illustration 15 g00595746
Remove the upper brass fitting (26).
Remove the washer (27).
Illustration 16 g00595747
Illustration 17 g00595748
Remove the washer (28) and the diaphragm assembly (29). Note: Mark the casing for proper installation.
Tap the upper casing (30) in order to remove the diaphragm assembly (31).
Remove the jet (32).
Illustration 18 g00595749
(33) Valve. (34) Diaphragm. (35) O-ring Seal. (36) Washer. (37) Adapter.
Disassemble the small diaphragm assembly (31).
Illustration 19 g00595751
Remove the large tee (38).
If necessary, remove the valve plunger assembly (39) from the tee.
Illustration 20 g00595752
Remove the cotter pin (40) in order to be able to push the shaft assembly (41) into the valve. The shaft assembly should be pushed far enough in order to access the arm assembly.
Illustration 21 g00595754
Remove the two retaining clips (43) and the pin (42) in order to remove the arm (44) and the shaft (41) from the regulator housing.
Illustration 22 g00595755
(40) Pin. (41) Shaft Assembly. (42) Pin. (43) Retaining Clips. (44) Arm. (45) Seals. (46) Nut. (47) Cover.
Disassemble the cover for the gas pressure regulator.
Illustration 23 g00595757
(40) Pin. (48) Shaft. (49) Valve Head. (50) Bushing. (51) Retainer. (52) Screw.
Disassemble the valve plunger assembly.
Illustration 24 g00595758
Illustration 25 g00595759
Remove the shaft assembly (53) from the cover (23).
Remove the guide (54) from the cover (23).
Remove the washer (55).
Remove the diaphragm (56).
Illustration 26 g00595761
(23) Cover. (54) Guide. (55) Washer. (56) Diaphragm. (57) Fitting. (58) Retainer. (59) Shaft.
Disassemble the large diaphragm assembly.