Fayat Bomag CR 820 T Tier 4, Operating Instructions, Maintenance Instructions

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9 Maintenance
Operations Manual
CR 820 T
Date May 2020
Page 9-26
Figure 9.49 - Fume Recovery System Fan 3
• Remove the bolt and two washers (9) hold-
ing the fan (10) to the motor shaft.
Clean the fan housing and fan by soaking in solvent
and cleaning with a brush.
Reassemble fan in reverse order. When installing
fan wheel, use Loctite 242 on the bolt and torque to
110 in-lb. Seal the fan housing with RTV silicone.
Tracks Corrective Maintenance
To maintain and preserve the life of the rubber track
it is important to follow these recommendations:
• Do not use solvents to wash the rubber
track. Solvents including kerosene, gaso -
line, diesel fuel, or oils cannot be used
to wash the surface of track rubber. The
track rubber absorbs these solvents and
will gradually soften and reduce its durabil-
ity. Soap and water are recommended for
cleaning the rubber track.
If you scrape the rubber track surface to clean it, be
careful to not damage or cut it when cleaning.
• Check the track alignment.
Rubber track undercarriage component
alignment is very important to the life of the
track. An easy, quick check is to inspect the
track center lugs.
Figure 9.50 - Track Center Lugs
• If one side is worn more than the other
side, the following conditions could exist:
asphalt build-up on the track inner surface,
road crown, track tensioning, etc. If any of
the above is present, correct the situation
before excessive track wear occurs.
•
Perform a visual inspection.
Unlike pneumatic tires, the rubber track is
not as sensitive to chippings and cracks
on the surface unless they extend to the
separation of rubber from the belt. The rub-
ber track is not a 100% maintenance free
product. The following items will be helpful
to maintain and inspect your rubber tracks:
• Record the track serial numbers.
• Record the date and hour meter reading
when you mount tracks onto the machine.
• Periodically check the condition of the
tread, guide lugs, and inner surface for
wear, cracks, chipping, and chunking.
• Periodically check that any steel cable or
ply cord are not exposed.