Hobart Welding Products CONTRACTOR 40D OM-474 - Manuel (Page 28)

OM-474 Page 24
SECTION 7 – MAINTENANCE AND TROUBLESHOOTING
Follow the storage procedure in the engine owner’s manual if the unit will not be
used for an extended period.
NOTE
7-1. Routine Maintenance
Recycle
engine fluids.
Y Stop engine before maintaining.
.
See also Engine Manual and Maintenance
Label. Service engine more often if used in
severe conditions.
* To be done by Factory Authorized Service Agent.
8 h
Wipe up
spills. Drain water
from fuel system.
See Section 7-4. Check fluid
levels. See
Section 4-4.
OIL
Full
FUEL
WATER
50 h
Clean air filter. See Section 7-3. Clean and tighten weld
terminals.
100 h
Clean and
tighten battery
connections. Change oil filter.
See Section 7-6. Change oil. See
Section 7-6.
200 h
Replace unreadable labels.
250 h
Check and clean
spark arrestor.
See Section 7-8.
500 h
Repair or replace
cracked cables. Check valve clearance.*
1000 h
Drain sludge
from fuel
tank. See
Section 7-4.
Blow out or
vacuum inside.
During heavy
service, clean
monthly.
Or
FUEL
SLUDGE
Service welding generator
brushes and slip rings. Service
more often in dirty conditions.* Change fuel
filter. See
Section 7-4.