VALVE GP-CONTROL 1242883 - Caterpillar

1. Put air compressor (1) and the gasket in position on the engine.2. Install four bolts (2) that hold air compressor (1). 3. Connect air lines (3), (4) and (6) to the air compressor.4. Connect air line (5) to the air compressor governor.5. Install vee belt (7) on the air compressor pulley. Tighten bolts (8) for the belt tightener to hold the correct tension on vee belt (7). To get the correct belt tension use a tension gauge such as Burroughs Tool Company Part No. BT-33-96-4-16 or an equivalent. The correct gauge indication is 120 5.Disassemble Air Compressor
start by:a) remove air compressor 1. Remove two bolts (2) and remove air compressor governor (1), the spacer and two gaskets from the air compressor. To disassemble governor (1) see REMOVE AIR COMPRESSOR GOVERNOR.2. Remove the cotter pin and nut (3) from the air compressor. 3. Remove pulley (4) from the air compressor with tool (A). Before the compressor is disassembled put identification marks on the crankcase, cylinder block, end covers, crankshaft, and cylinder head for correct installation and alignment at assembly. 4. Remove cap nuts (5), the springs and discharge valves.5. Remove bolts (6) and cylinder head (7). 6. Remove gasket (8) and inlet valve springs (9) from the cylinder head. 7. Remove inlet valves (10) from the cylinder block. 8. Turn the compressor over and put marks on bearing caps (12) and the connecting rods for correct installation and alignment at assembly.9. Bend the tabs of the locks from bolts (11). Remove the bolts and bearing caps (12). 10. Turn the compressor over and remove pistons (13) and the connecting rods from the top of the cylinder block. Connect the bearing caps to their connecting rods so they do not become mixed for assembly.11. Remove the rings from pistons (13). 12. Remove bearings (16) from the bearing caps and connecting rods (14).13. Remove lockwire (15). Use a press and remove pin (17) from piston (13). Remove connecting rod (14) from the piston. 14. Remove the six bolts that hold cylinder block (18) to the crankcase. Remove cylinder block (18) and the gasket. 15. Remove the two bolts and remove inlet elbow (19) and plate (20) from cylinder block (18).16. Remove inlet valve guides (21) from cylinder block (18). 17. Remove the unloader mechanism from the cylinder block as follows: a) remove spring (23).b) remove saddle (25).c) remove plungers (22) and pistons (24). 18. Remove key (27) from the crankshaft.19. Remove the four bolts and remove front cover (26) from the crankcase. 20. Remove the lip type seal (28) from front cover (26). 21. Remove four bolts (29) and remove cover assembly (30) from the rear of the crankcase. 22. Remove washer (31) and bearing (32) from cover assembly (30).23. Use a soft faced hammer to remove the crankshaft and bearing from the front of the crankcase. 24. Use tooling (B) and a press to remove bearing (33) from crankshaft (34).25. For more information about inspection, and usable parts