Magnum MLT4000S — Trailer Wheel Bearing Lubrication
Maintenance · Trailer axle bearings
For the Magnum MLT4000S, from the Magnum operator's manual.
Applies to: Magnum MLT4000S, Generac GN-220 engine
Parts for this job
- 70185 Oil filter Amazon eBay $18.99 NAPA $9.09 KuduParts $11.00
Part numbers from the service-parts list for Magnum MLT4000S. Verify against your serial number before ordering; some links are affiliate links.
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.
- Replace the rubber plug when finished.
Tools required
- Standard grease gun
- Clean cloth Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Minimum lubrication every 12 months or 12,000 miles (19,312 km)
Full service-parts list: Magnum MLT4000S →
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.