Furukawa Unic URW370C4U Series, Operation & Maintenance Manual

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14-3
MAINTENANCE AND INSPECTION OF CRANE
When the slewing device makes an unusual
noise while operating or crawling the crane,
or when a gap is created on the mounting sur-
face, contact a UNIC authorized service shop
for inspection and/ for repair.
Keep the crane clean at any time.
Sands and fine dusts may cause an abnormal wear .
Do not wash the crane by splashing highly pressurized water to prevent it from entering into the
electric system which may cause malfunction of the crane.
Cleaning
Inspection of bolts mounting slewing bearings
Break of the bolts mounting slew-
ing bearings invite an accident
such as overturn and destruction
of the crane.
Check the mounting bolts (outer
ring side) for tightness once
every 6 months.
CAUTION