OPERATING INSTRUCTIONS RH 120 E

Inspection and servicing

Crawler Tracks

Cleaning

Clean tracks, track and support rollers, sprockets and idlers regularly and whenever required. Cleaning is especially important in winter to prevent the tracks from being thrown off oil from leaking out of track and support rollers, sprockets and idlers excessive wear the track from breaking.

To clean the tracks: raise one side of the excavator with the working equipment and allow track to turn; clean the side member supporting the track; clean track and support rollers (1 and 2 ,Fig. 3-90:) thoroughly; clean the sliding planes on the idler guides.

Operating Instructions

Inspection and servicing

Track roller, Support roller

Inspect all track and support rollers visually for leaks and free movement at regular intervals.

Track roller fastening

Check fastening screws (4 Fig. 3-91:) regularly for tightness:

Tighten screws with a torque wrench to the prescribed tightening torque (cf. table "Tightening torques").

Support roller fastening

Check fastening screws (3, Fig. 3-91:) regularly for tightness

Tighten screws with a torque wrench to the prescribed tightening torque (cf. table "Tightening torques").