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OM-4401 Page 27
500 h
Replace fan belt.
Flush radiator.
Repair or replace
cracked cables.
Drain sludge from
fuel
tank.
FUEL
SLUDGE
800 h
Check valve
clearance.*
1000 h
Blow out or
vacuum inside.
During heavy
service, clean
monthly.
OR
Service welding generator
brushes and slip rings. Service
more often in dirty conditions.*
2000 h
Replace radiator
coolant and hoses.
See Section 7-6.
Replace fuel
lines and
clamps. See
Section 7-5.
Y Stop engine and let cool.
1 Cleanout Plug
Remove plug and remove any dirt
covering cleanout hole.
Start engine and run several min-
utes to blow out cleanout hole. If
nothing blows out of hole, briefly
cover end of exhaust pipe with fire-
proof material.
Y Stop engine and let cool.
Reinstall cleanout plug.
7-3. Servicing Optional Spark Arrestor
1/4 in
802 656
Tools Needed:
1