Cummins/Onan PCC 3100 — P7 Generator Bearing Re-Lubrication
Maintenance · Generator bearing (P7)
For the Cummins/Onan PCC 3100, from the Cummins/Onan operator's manual.
Applies to: Cummins/Onan DFHA, Cummins/Onan DFHB, Cummins/Onan DFHC, Cummins/Onan DFHD, Cummins/Onan PCC 3100, Cummins/Onan QST30 engine
Before you start
- The bearing must be filled with the same type of grease used when the generator was manufactured and MUST NOT be mixed with any other type.
Procedure
- Make sure grease gun nozzle and re-lubricating fitting are free from contaminants or abrasive material.
- With the generator running, apply the specified re-lubrication grease fill quantity through the grease fitting.
- Run the generator for at a minimum of 10 minutes to allow excess grease to exhaust.
- Check inside the PMG cover for expelled grease. Clean out as necessary.
Tools required
- Grease gun Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Grease: Kluber, type ASONIC GHY72
- Grease quantity: 75 grams (P7 frame) — 4000−4500 re-lubrication period
Full service-parts list: Cummins/Onan DFHA →, Cummins/Onan DFHB →, Cummins/Onan DFHC →, Cummins/Onan DFHD →, Cummins/Onan PCC 3100 →
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.