Doosan DX700LC Operation And Maintenance Manual page 273

The transfer pump is used to transfer fuel from a refueling
source to the fuel tank. A check valve is installed in the inlet
hose to prevent fuel from flowing back from fuel tank to source.
A strainer is installed in inlet hose to prevent any foreign material
from being introduced into transfer pump or fuel tank.
A thermal limiter, built into the motor, will automatically shut off
power if motor is overheating to protect it from being damaged.
Figure 149
Reference
Number
1
2
1. Insert inlet hose (3, Figure 149) into refueling tank.
2. Turn fuel pump "ON" press (Figure 150) inside of battery
box on front side.
NOTE: Transfer pump rate of flow is approximately 100
liters/minute (26.4 U.S. gpm). Use extra care
not to overfill fuel tank so that fuel does not over
flow.
3. Once fuel transfer is completed automatically "OFF"
position to stop pump.
4. Lift inlet hose (3, Figure 149) from fueling source and turn
switch to "I" (ON) position for two - three seconds to drain
remaining fuel from hose to fuel tank.
5. Inlet strainer and return hose (3) to storage position.
Inspection, Maintenance and Adjustment
1
Fuel Tank
Description
Body
Check Valve
Fuel
2
Reference
Number
3
Figure 150
3
IN IN OUT OUT
Description
Inlet Hose
OP001123
FG016185
FG015806
4-85