OP000599
4-83
Inspection, Maintenance and Adjustment
3.
Too little sag in the crawler track (less than 320 mm
(12.60 in) clearance) can cause excessive component
wear. The recommended adjustment can also be too tight
causing accelerated stress and wear if ground conditions
are wet, marshy or muddy, or if the ground is hard and full
of rocks or gravel.
4.
The increased clearance recommended for muddy ground
conditions is between 340 - 370 mm (13.39 - 14.57 in). The
clearance should be approximately 370 mm (14.57 in) for
operation over gravel, rocky terrain, or over sand or snow.
5.
Track tension adjustments are made through the grease
fitting (1, Figure 142) in the middle of each side frame.
Adding grease increases the length of an adjustment
cylinder (2). The longer the adjustment cylinder, the
greater the pressure on the tension spring pushing the
track idler wheel outward.
6.
If there is not enough slack or clearance in the tracks and
the adjustment is too tight, the idler wheel and adjusting
cylinder can be retracted by bleeding off grease through
hole in valve (3, Figure 142) by loosening valve slowly (3,
Figure 142).
NOTE:
After track tension is adjusted by loosening
valve, be sure to tighten valve (3, Figure 142)
with 14 kg•m (137 Nm, 101 ft lb).
WARNING!
The track adjusting mechanism is under very
high-pressure. NEVER release pressure too suddenly.
The grease cylinder valve should never be backed off
more than 1 complete turn from the fully snugged
down position. Bleed off pressure slowly and keep
your body away from the valve at all times. If there is
problem in the fitting thread, the valve or fitting might
be ejected at high speed to cause fatal wound.
1
3
2
FG000163
Figure 142
WARNING!
Do not loosen or remove the grease fitting (1, Figure
142) until the pressure is entirely bleed off by
loosening valve (3, Figure 142) slowly.
Summary of Contents for DX140LC
Page 2: ......
Page 67: ...OP000597 2 3 Operating Controls ...
Page 87: ...OP000597 2 23 Operating Controls ...
Page 122: ...OP000597 Operating Controls 2 58 CD Player Optional AST DIR FG000109 Figure 123 ...
Page 184: ...OP000598 Operation 3 48 ...
Page 193: ...OP000599 4 9 Inspection Maintenance and Adjustment ...
Page 272: ...OP000599 Inspection Maintenance and Adjustment 4 88 ...
Page 278: ...OP000600 Transportation 5 6 ...
Page 284: ...OP000013 Troubleshooting 6 6 ...
Page 292: ...OP000601 Specification 7 8 ...