GPU Annually PM

This procedure guides technicians through the interval-based preventive maintenance tasks for the GPU.

DHL GSE

02/14/2025

GPU Annually PM

This procedure covers the scheduled preventive maintenance for the GPU, including the accessory belt, belt tensioner, DEF tank pickup filter, wheels, wheel and fifth wheel hub bearings, engine block steam cleaning, crankcase vent filter and breather tube, engine coolant, DEF filter, and overhead valve adjustment. Each item follows its own interval, ranging from 1,000 hours or 12 months up to 5,000 hours or 48 months.

Accessory belt Change every 1000 hours or 12 months

Yes
No
N / A

Belt tensioner Check every 1000 hours or 12 months*

Yes
No
N / A

DEF tank pickup filter(T4 only) Change every 1000 hours or 12 months

Yes
No
N / A

Wheels Rotate every 1200 hours or 24 months

Yes
No
N / A

Wheel hubs and fifth wheel hub Repack bearings every 24 months

Yes
No
N / A

Repack wheel and fifth wheel hub bearings 24 months

Yes
No
N / A

Steam clean the engine block Every 2000 hours or 24 months

Yes
No
N / A

Crankcase Vent Filter(T4 only) Change every 2000 hours or 24 months

Yes
No
N / A

Crankcase breather tube(T4 only) Clean every 2000 hours or 24 months

Yes
No
N / A

Engine coolant Check daily; change every 24 months.

Yes
No
N / A

DEF Filter (Tier 4 Final Only) Change every 4500 hours

Yes
No
N / A

Adjust overhead valves Every 5000 hours or 48 months

Yes
No
N / A

Source: DHL GSE (Community Member)