Cummins/Onan — Fuel System Installation
Installation
From a Cummins/Onan service manual — check it applies to your exact model before use.
Applies to: Cummins/Onan GGHE, Cummins/Onan GGHF, Cummins/Onan WSG-1068 engine
Before you start
- Fuel leaks create fire and explosion hazards which can result in severe personal injury or death
Procedure
- Use flexible fuel hose(s) between engine fuel system and fuel supply line.
- Install dry-type fuel filter ahead of service pressure regulator.
- Route and secure fuel lines maintaining 2 inch (51 mm) minimum clearance from electrical wiring and hot exhaust parts.
- Install manual and electric shutoff valves ahead of flexible fuel hose(s).
- Test all fuel-system connections for leaks with soap and water solution while system is under pressure (LP minimum 90 psi/621 kPa at primary regulator inlet).
Specs & values
- Minimum clearance from electrical wiring/exhaust: 2 inch (51 mm)
- LP leak test pressure: not less than 90 psi (621 kPa)
Full service-parts list: Cummins/Onan GGHE →, Cummins/Onan GGHF →
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.