RT120Q Operator’s Manual Service - 167
10 Hour
Check Trench Cleaner Position
Check trench cleaner position (if equipped) every
10 hours, or anytime the digging chain is adjusted
or replaced. The trench cleaner is properly
positioned when there is 3-4 in (76-102 mm)
between the digging teeth and the inside of the
trench cleaner shoe (A).
Check that bolts holding personnel restraint bar/
trench cleaner to arm are tightened to 350 ft•lb
(475 N•m). Apply Loctite 271
®
adhesive.
Check Personnel Restraint Bar/Trench
Cleaner Bolts
Check all bolts that mount restraint bar/trench
cleaner to arm every 10 hours and tighten as
necessary to keep bolts tight. Check for
looseness or wear. Apply Loctite 271
®
adhesive.
Check that bolts holding personnel restraint bar/
trench cleaner to arm are tightened to 350 ft•lb
(475 N•m). Bolts mounting arm to boom should be
tightened to 400 ft•lb (542 N•m).
A
t33om90w.eps
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