3-21
COOLING SYSTEM:
Check the level of coolant in the radiator overflow tank daily. Add a mixture of antifreeze
and distilled water to the overflow tank as required to maintain the coolant level. Check
the radiator fins for dirt or debris daily and wash the fins with a pressure or steam
cleaner every 50 hours or as required. Check the antifreeze protection level every 500
hours. Every two years, flush the cooling system and replace the thermostat and
coolant. Pressure test the system as specified by the engine manufacturer.
SPARE PARTS LIST:
A spare parts list (including oil filter, fuel filter, etc.) may be found in the Parts Manual,
under Engine Installation.
MAJOR ENGINE SERVICING OR OVERHAUL:
Major servicing or overhaul is beyond the scope of this manual. Consult authorized
engine service manual or rely on an authorized engine service center.
MECHANICAL ADJUSTMENTS
FASTENERS:
All fasteners on the IC-80 should be checked and retightened if required, as a part of the
preventive maintenance program. Particular attention should be given to the drive axle
mounting bolts, pump mounting bolts, pump drive shaft bolts, swing bearing bolts, swing
gearbox bolts, winch bolts, and wheel nuts. All bolts used in assembly are heat-treated
Grade 5 or 8. Torque the swing bearing mounting bolts (3/4" diameter, Grade 8) to 280
lb-ft (380 Nm), or the nuts to 280 lb-ft (380 Nm). The torque chart page 3-23 can be
used on all other bolts.
SWING GEARBOX:
The swing gearbox assembly is attached to the chassis top plate by four cap-screws. It
is held in proper engagement with the external teeth on the bull gear by two setscrews.
It is further restrained from torsional movement by four bolts, two on each side of the
gearbox mounting flange. The gearbox should be adjusted with the boom centered over
front of the chassis. This centers the gearbox pinion on the “high side” of the bearing
gear teeth. Adjust the gearbox inward until there is “light contact” between pinion and
bull gear teeth. Retighten the four mounting bolts and the four side bolts.
REAR WHEEL BEARINGS:
Rear wheel bearings are adjusted with a light snug fit. Assure that hubs are free to
rotate by hand after adjustment.
WHEEL TOE-IN SETTING:
Wheels are set for zero toe-in.
TRANSMISSION TROUBLESHOOTING AND OVERHAUL:
Procedures for transmission troubleshooting and overhaul are beyond the scope of the
BMC Maintenance and Parts Manuals. The transmission factory service manual is
available. Order BMC Part NO. 99000021.
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