BGHMF00 Lafayette 3606 Engine Caterpillar parts G3606B Lafayette
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Compatible equipment models: BGHMF00:
GAS ENGINE G3606B Caterpillar
Illustration 4 g06281300
(5) Back plate
Remove O-ring (6) and back plate (5) as shown in illustration 4.
Illustration 5 g06281302
(7) Shaft seal
Remove shaft seal (7) as shown in illustration 5.
Install new shaft seal, back plate, O-ring, and rotor. Reuse the 3 bolts and 4 vanes and pump section.
Clean the foot valve filter and replace vanes.
Confirm the filter in the foot valve. If the filter is clogged, clean the filter. Refer to Service Magazine, M0064832.
If the suction power is still low after the previous step, replace the vanes. Prepare 450-1785 Pump Kit.
Illustration 6 g06281292
(1) Pump section
Remove pump section (1) of the pump group by removing 3 bolts (2) as shown in illustration 6.
Illustration 7 g06281296
Replace the 4 vanes (4) with new ones in the same directions as shown in illustration 7.
Reinstall the pump section and the 3 bolts as shown in illustration.
Illustration 8 g06281367
(16) Red terminal (power)
(17) Black terminal (negative)
Perform the following troubleshooting from the table below to determine and fix the problem.
Troubleshooting Test Step Values Results
1. Turn on the switch pump Pump is activated Yes - No problem with the pump
No - Proceed to test step 2
2. Check the fuse for the pump in the fuse box Fuse is closed Yes - Proceed to test step 3
No - Replace the 113-8491 Fuse and proceed to test step 1
Measure the voltage of the machine side power supply(1) 24V Yes - Replace the controller of the pump and proceed to step 6
No - There is a problem in the machine side troubleshoot and repair
(1) Measure the voltage between the red and black terminals of the machine side harness connector, as shown in illustration 8.
Replace the controller.
Prepare 272-0710 Refueling Pump Control, 2 7Y-3965 Tubes, and 125-7876 Heat Shrink Tube.
Illustration 9 g06281389
Illustration 10 g06281396
Cut and remove tube (8) and strap (9) and disconnect the 2 terminals (10) as shown in illustrations 9, and 10.
Illustration 11 g06281393
Remove the controller (11) and 2 bolts (12) as shown in illustration 11.
Illustration 12 g06281401
(13) 7Y-3963 Bullet Terminals
(14) 7Y-3965 Tubes
(15) 272-0710 Refueling Pump Control
Install 2 7Y-3963 Bullet Terminals (13), and 2 7Y-3965 Tubes (14) to the new 272-0710 Refueling Pump Control (15) as shown in illustration 12.
Install the controller to the pump with 125-7876 Heat Shrink Tube and reuse the 2 bolts. Refer to step 6.b and step 6.c.Shrink the tube.