Magnum — Trailer Wheel Bearings
Maintenance
From a Magnum operator's manual covering: MMG320, MMG320 Super Start, MMG405, MMG405 Super Start, MMG465. Check it applies to your exact model before use.
Applies to: Magnum MMG320, Magnum MMG320 Super Start, Magnum MMG405, Magnum MMG405 Super Start, Magnum MMG465, John Deere RG6090HF485 engine, John Deere RG6135HF485 engine
Procedure
- Remove the small rubber plug on the grease cap.
- Attach a standard grease gun fitting to the grease zerk fitting.
- Pump grease into the fitting until new grease is visible around the nozzle.
- Wipe any excess grease from the hub and replace the rubber plug.
Tools required
- Grease gun Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Minimum every 12 months or 12,000 miles (19,312 km)
Full service-parts list: Magnum MMG320 →
Source: Magnum 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.