HARNESS AS-POWER 5258340 - Caterpillar

2. Turn the fuel supply OFF.3. Disconnect two fuel lines (3). Cap or plug immediately.4. Remove two bolts (2).5. Remove fuel transfer pump (1) and gasket. Check gasket for wear or damage. Replace if necessary. For installation of the fuel transfer pump, reverse the removal steps.6. Turn the fuel supply ON.Disassemble Fuel Transfer Pump
Start By:a. remove fuel transfer pump
Typical Example1. Remove service meter (4) and/or tachometer drive from transfer pump cover (3) (if equipped).2. Remove bolts (2). Separate cover (3) and pump body (1). 3. Remove lip-type seal (6) from the cover. Remove plug (5), the seal, spring and plunger (bypass valve) from the cover. 4. Remove nut (10) from shaft (7). Remove gear (9) and key (11).5. Remove shaft (7) and gear (8) as a unit. Remove gear (8) from drive shaft (7) with a press.6. Remove idler gear (12). 7. Remove bushing (14), two lip-type seals and the bottom bearing from pump body (1).8. Remove check valve (13).Assemble Fuel Transfer Pump
Typical Example 1. Install bushing (4) in body (3) with tooling (B). The bushing must not be extended above the (gear) surface of the body.2. Install the check valve in the body with tooling (A).3. Install lip-type seal (5) with tooling (C). Install the seal until it is 24.6 0.5 mm (.97 .02 in) from the bottom surface of body (3) and with the lip toward bushing (4) as shown.4. Install lip-type seal (6) with tooling (D). Install the seal until it is 14.2 0.5 mm (.56 .02 in) from the bottom surface of body (3) and with the lip away from seal (5) as shown.5. Install bearing (7) in body (3) with tooling (E). The bearing must be even with the surface of the pump body.6. Heat gear (8) to a maximum temperature of 316°C (600°F). Install gear (8) on shaft (11) until dimension X is 49.71 0.25 mm (1.957 .010 in).7. Install the drive shaft and gear in body (3). Install the key, gear (10) and nut (9). Tighten the nut to a torque of 28 7 N m (21 5 lb ft).8. Install idler gear (12) in body (3).9. Install lip-type seal (2) with tooling (C). Install the seal until it is 3.8 0.5 mm (.15 .02 in) from the top surface of cover (1) with the lip toward the inside as shown.10. Install plunger (14) (bypass valve), spring (15) and seal and plug (13) in pump cover (1). Tighten plug (13) to a torque of 38 4 N m (28 3 lb ft).
Do not let the liquid gasket enter the pump.
The drive shaft must turn freely after the bolts that hold the transfer pump together are tightened.11. Put 7M7260 Liquid Gasket Material on the surface of cover (1). Install cover (1) on pump body (3).12. Install the service meter and/or tachometer drive on cover (1).End By:a. install fuel transfer pump