Cummins/Onan 1750DQKB / 3200 Series — Fuel Transfer Pump Operation
Operation · Fuel transfer control
For the Cummins/Onan 1750DQKB / 3200 Series, from the Cummins/Onan service manual.
Applies to: Cummins/Onan 1750DQKB, Cummins/Onan DFE
Before you start
- Continued operation with a CRITICAL LOW FUEL fault can lead to a low fuel shutdown if the fuel level float switch fails.
Procedure
- Press the control ON switch for automatic operation.
- The green PUMP light will come on and the pump will fill the tank.
- The level of fuel in the tank will be automatically kept between a set of pump-on and pump-off float gauge.
- When filling an empty tank, the red CRITICAL LOW FUEL and LOW FUEL lights will come on; they turn off as the tank is filled.
Specs & values
- Low fuel level approximately 62%
- Critical High fuel condition 95% full
Full service-parts list: Cummins/Onan 1750DQKB →, Cummins/Onan DFE →
Source: Cummins/Onan service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.