VALVE AS-DRAIN 3920776 - Caterpillar

start by: a) remove fuel transfer pump1. Remove six bolts (1) that hold the transfer pump cover to transfer pump body. Remove the cover. 2. Remove the plug (2), seat, spring and fuel bypass valve from cover. 3. Remove the gear (5) and shaft assembly (4) from the body (3). 4. Remove the seals (6) from the body. 5. Use tooling (A) to remove the bearing from the body.Assemble Fuel Transfer Pump (Earlier)
1. Use tooling (A) to install bearing into body.2. Use tool (B) to install inner seal in body. Install seal with lip of seal in the direction of the gears. 3. Use tool (C) to install outer seal in the body. Install seal with lip of seal toward the outside. 4. Install tool (D) on to shaft assembly (1) and install shaft assembly into body.
Tool (D) must be used to install shaft assembly. The shaft will cause damage to seals if it is not used.
5. Install idler gear (2) in the body. 6. Install fuel bypass valve (3), spring (4), seat (5), and plug into cover.7. Put a thin amount of 8S6747 Aviation Type Permatex on face of body.
Do not let Permatex get into the pump body.
8. Put the cover (6) in position on the body and install the six bolts. After tightening cover to body, the gear and shaft assembly must turn freely.end by: a) install fuel transfer pump