Cummins/Onan P4500iDF — Connect an LPG/Propane Tank
Installation · propane fuel system
For the Cummins/Onan P4500iDF, from the Cummins/Onan owner's manual.
Applies to: Cummins/Onan P4500iDF
Before you start
- DO NOT use thread seal tape or any other sealant on the LPG/propane hose connection.
Procedure
- Turn the generator OFF and place on a flat surface in a well ventilated area.
- Verify the propane tank valve is fully closed.
- Remove the cover on the generator propane inlet valve.
- Hand thread the LPG/propane hose to the propane inlet on the generator.
- Tighten the hose connector with a 19 mm or adjustable wrench. Do not over-tighten.
- Remove the safety plug or cap from the propane tank valve.
- Attach the other end of the hose to the tank and hand tighten.
- Open the propane tank valve fully and check all connections for leaks with soapy water.
Tools required
- 19 mm or adjustable wrench Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Torque: 5-10 lb-ft
Full service-parts list: Cummins/Onan P4500iDF →
Source: Cummins/Onan owner's 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.