Cummins/Onan — Stator Installation
Repair & overhaul · Generator stator
From a Cummins/Onan service manual covering: 1.4 EGPAA, 1.7 EGPAA, 2.0 EGHAM, 2.0 EGPAB, 2.5 EGHAA, 2.5 EGPAB, 3.5 EGHEM, 3.5 EGPAC, 4.0 EGHAB, 4.0 EGHEB, 4.0 EGPAC, 5.0 EGHAB…. Check it applies to your exact model before use.
Applies to: Cummins/Onan 2.5 EGHAA, Cummins/Onan 4.0 EGHAB, Cummins/Onan 5.0 EGHAB, Cummins/Onan GH170 engine, Cummins/Onan GH280 engine, Cummins/Onan Elite E140H engine
Procedure
- Assemble end bell to stator if previously separated.
- Install stator assembly over rotor without damaging windings.
- Secure stator to adapter with four bolts at specified torque.
- Secure end bell to frame at specified torque.
- Pull recoil starter slowly to check rotor-stator alignment.
- Reconnect all wiring; tighten terminal block nuts.
- Install brush block and secure with mounting screw.
- Place end cover over end bell and secure.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- 4.3 to 6.5 ft-lb stator through-bolt
- 13 to 15.9 ft-lb adapter bracket to engine
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.