■ Check the sprocket wheels (3)
□
Check tightening torque of the mounting nuts.
□ Check the sprocket wheels for wear:
□ Check whether the teeth are chipped or only damaged on one side.
□ Check whether there is any foreign matter stuck in the tracks.
□ Replace the sprocket wheels with tooth flanks worn on one side.
□ Check whether the wheel sides are damaged.
Checking the track guide
■ Checking the condition of the track guide.
■ Make sure that the track guides are firmly fastened.
■ Immediately replace damaged and missing track guide clamps and locking nuts.
■ If necessary, tighten the nuts on the track treads (95 Nm).
Tracks
Torque values for steel track fasteners
Figure 110: Standard and Preminum steel tracks
Cross-link retaining bolts/nuts on rubber belts must be tightened to specified torque after the first 150
hours
of operation (torque value shown is the tightening torque). Then, reapply torque at the beginning
of every season.
Name Val
1 Overlap with bushings : 95 +15/-5 Nm (70 +11/-3 ft-lb)
2a Wide rubber belt without bushings : 54 - 61 Nm (40 - 45 ft-lb)
2b Wide rubber belt with bushings : 163 +15/-5 Nm (100 +11/-3 ft-lb)
3a Narrow rubber belt without bushings : 41 - 48 Nm (30 - 35 ft-lb)
Operating and Maintenance Manual
Snow groomer BISON
186
(255)
11 - Maintenance
BISON 908930245 - 30367
11.14.2
11.15
11.15.1