Generac MMG50ITM — Trailer Wheel Bearings
Maintenance
For the Generac MMG50ITM, from the Generac operator's manual.
Applies to: Generac MMG50ITM, Isuzu 4LE2XAGV01 engine
Before you start
- Use only a high quality grease made specifically for lubrication of wheel bearings.
Procedure
- Remove the small rubber plug on the grease cap.
- Attach a standard grease gun fitting to the grease zerk fitting and pump grease until new grease is visible around the nozzle.
- Wipe any excess grease from the hub with a clean cloth and replace the rubber plug.
Tools required
- Standard grease gun
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Every 12 months or 12,000 miles (19,312 km)
Full service-parts list: Generac MMG50ITM →, Isuzu 4LE2XAGV01 engine →
Source: Generac 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.