Komatsu — 4.11.4 CRAWLER TRACK - INSPECTION

MAINTENANCE 4.11 EVERY 500 OPERATING HOURS OR MONTHLY CHECK ADJUSTING RANGE FOR GUIDE WHEELS Legend for illustration Z 20015 (1) Guide wheel (2) Slide block (3) Stop plate “X” Adjusting range for track tension The adjusting range for track tension is the distance “X” between guide wheel slide block (2) and stop plate (3). Depending on leng- htening of the track the slide block (2) may come in contact with stop plate (3). In such a case, it must be ensured that the track does not become too loose, Depending on track condition, the removal of one track pad will restore the adjusting range “X”. If necessary contact our Service Department for more information.

Before working on the track adjusting system, relieve all pressure in the system by opening the pressure relief cock (5), see illust. Z 20371 on previous page. NOTICE G If removal of a track pad becomes necessary, it must be done on both tracks in order to maintain the same length of both tracks. G During operation, the pressure relief cock (5) must always be in CLOSED position. Open cock (5) for pres- sure relieve prior servicing any part of the system, e.g. removal of a track pad. 363 WARNING