Miller Electric Big Blue 502P Owner's Manual page 29

Blow Out Or
Vacuum Inside.
OR
During Heavy
Service,
Clean Monthly.
Change Fuel
Filters. See
Section 7-6.
500 h
Repair Or
Replace
Damaged
Cables.
800 h
Clean/Set
Injectors.*
1000 h
SLUDGE
Check
Valve
Clearance.*
FUEL
Service Welding Generator
Brushes And Slip Rings. Service
More Often In Dirty Conditions.*
Drain Sludge
From Fuel
Tank. See
Section 7-6.
OM-491 Page 25