PINION 4505244 - Caterpillar

Illustration 1 g03536676
(1) Pressure regulating valve
(2) Outlet port
Table 1
Specification for 388-7287 Fuel Transfer Pump Gp and 388-7286 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:
1. Run the pump at 2940 rpm. The full bypass pressure should be 895 to 1000 kPa (130 to 145 psi).
2. Run the pump at 840 rpm. The flow at 550 kPa (80 psi) must be 3.0 L/min (0.8 US gpm) minimum.
3. Run the pump at 2940 rpm. The flow at 4.5 L/min (1.2 US gpm) minimum at 815 kPa (118 psi).
4. Run the pump at 120 rpm. Keep the inlet open to the atmosphere for 10 seconds. Block the inlet. The pump must maintain the vacuum of 30 kPa (4 psi) minimum in 30 seconds.
5. Run the pump at 840 rpm. Keep the inlet open to the atmosphere for 10 seconds. Block the inlet. The pump must maintain the vacuum of 45.0 kPa (6.5 psi) minimum in 30 seconds.
6. Run the pump at 120 rpm with a blocked inlet for 30 seconds. The pump inlet must have a suction lift of 60.9 kPa (9.0 psi) minimum.
7. Run the pump at 140 rpm .The flow at 200 kPa (29 psi) must be 0.25 L/min (0.066 US gpm).