GEAR-OIL PUMP DRIVE 9G7411 - Caterpillar

Remove Aftercooler
start by:a) remove carburetorb) remove instrument panel1. Shut off and disconnect gas supply line to the gas pressure regulator. 2. Remove bolt (1) and washer from the balance tube (2) support.3. Disconnect balance tube (2) from the boost control valve. 4. Remove bolts (4) and washers. Remove gas pressure regulator (3) and braces as a unit. 5. Remove bolts (5) and washers that hold tube assembly (6) in place. Remove tube assembly (6). 6. Remove adapter (7) and gasket from the aftercooler housing. 7. Remove bolts (8) and washers from elbow (9).8. Disconnect water inlet tube (10) from the fitting on the auxiliary water pump.9. Remove elbow (9) and water inlet tube (10) as a unit. 10. Remove adapter (11) and gasket from the aftercooler cover. 11. Remove bolts (13) and washers that hold aftercooler cover (12) in place. Remove aftercooler cover (12) and gasket. 12. Remove aftercooler core (14) and gasket. 13. Remove eight bolts (16) and washers that hold the aftercooler housing (15) in place.14. Remove aftercooler housing (15) and gaskets from the cylinder head.Install Aftercooler
Put a thin layer of clean engine oil on all O-ring seals and the bores of each adapter. 1. Put new gaskets (2) in position and install aftercooler housing (1). 2. Install O-ring seals (3) on the aftercooler core (4).3. Put a new gasket and aftercooler (4) into position in the aftercooler housing. 4. Put a new gasket and aftercooler cover (5) into position. Install the washers and bolts loosely that hold aftercooler cover (5) in place. 5. Install a new gasket (6) and adapter (7) in the aftercooler cover. 6. Put O-ring seal (8) in position and install elbow (9) on the aftercooler cover.7. Connect the water inlet tube to the auxiliary water pump. 8. Put a new gasket (10) and adapter (11) into position in the aftercooler housing. 9. Install O-ring seal (12) on tube assembly (13).10. Install tube assembly (13) in the aftercooler housing. 11. Put gas pressure regulator (14) into position and fasten to the aftercooler housing.12. Fasten clip (15) to the aftercooler housing. 13. Connect balance tube (17) to the boost control valve.14. Fasten balance tube support (16) to the aftercooler housing.15. Tighten all of the bolts that hold the aftercooler cover in place to a torque of 18 5 lb.ft. (25 7 N m).16. Connect the gas supply line to the gas pressure regulator. After the end by steps have been completed, run engine and tighten all aftercooler cover bolts to a torque of 18 5 lb.ft. (25 7 N m).end by:a) install carburetorb) install instrument panel