Cummins/Onan M-1600-2 — Lowering the Under-Floor Mount Generator Set
Maintenance
For the Cummins/Onan M-1600-2, from the Cummins/Onan operator's manual.
Browse Cummins/Onan generators & specs →
Before you start
- Use a floor jack or other device to control weight; do not lower by hand
- If leaving set lowered more than thirty minutes, first drain the oil
Procedure
- Park RV on as level a surface as possible
- Put vehicle in park, lock brakes, remove ignition key; ensure no one moves vehicle
- Disconnect both battery cables at generator set starting battery; open access door
- Separate exhaust system near generator set if connected to under-structure
- Check electrical connections and fuel line for sufficient slack
- Position floor jack under reinforcement ribs of drip tray
- Raise jack until it contacts drip tray and apply slight upward pressure
- Remove four bolts and front support bracket; slowly lower jack, allowing it to roll as set swings down; block drip tray before removing jack
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Refer to SPECIFICATIONS section for unit weight
Source: Cummins/Onan operator'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.