Cummins/Onan 6.0 NH-1R/9500 / 6KW Power Drawer — Flywheel Removal
Repair & overhaul
For the Cummins/Onan 6.0 NH-1R/9500 / 6KW Power Drawer, from the Cummins/Onan service manual.
Browse Cummins/Onan generators & specs →
Before you start
- Do not remove the screw completely since it acts as a restrainer when the flywheel snaps loose.
- Do not use a screwdriver or pry behind the flywheel against the gear case.
Procedure
- Loosen and turn flywheel mounting screw outward about two turns.
- Install puller bar (Onan No. 420-0100) on flywheel.
- Turn puller bar bolts alternately until wheel snaps loose on shaft.
- Unscrew puller, remove flywheel mounting screw and washer, pull flywheel off shaft.
Tools required
- Onan No. 420-0100 puller bar Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
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.