BASE AS 4560168 - Caterpillar

Illustration 1 g02555276
(1) Weep hole
(2) Pressure regulating valve
(3) Inlet port
(4) Outlet port
Illustration 2 g02555280
Typical cover opposite the fuel transfer pump
Table 1
Specification for 266-2522 Fuel Transfer Pump Gp
Item Qty Part Specification Description
- - - When the fuel transfer pump is using diesel fuel, the fuel transfer pump has the following specifications:
Run the pump at 2940 rpm. The full bypass pressure should be 716 to 786 kPa (104 to 114 psi).
Run the pump at 840 rpm. The flow at 550 kPa (80 psi) must be 3.0 L/min (0.8 US gpm).
Run the pump at 2940 rpm. The flow at 650 kPa (94 psi) must be 4.5 L/min (1.19 US gpm).
Run the pump at 100 rpm with a blocked inlet for 30 seconds. The pump inlet must have a suction lift of 60.9 kPa (9 psi) minimum.
5 2 - Torque to 30 5 N m (265 44 lb in).