Service - 120
RT40 Operator’s Manual
10 Hour
Check Digging Chain Tension
Check digging chain tension every 10 hours.
Sprocket Boom
Tension is correct when 2” (50 mm) of slide and stop (3) are exposed. Adjust tension with boom horizontal
by tightening or loosening adjustment screws (2) and jam nuts (1).
Roller Boom with Adjusting Screw
With boom horizontal, measure distance from bottom of boom to chain (3). When properly adjusted,
distance should be 1.5-2” (40-50 mm). Adjust tension by tightening or loosening adjustment screw (1) and
jam nut (2).
t14om027h.eps
1
2
3
t14om028h.eps
1
2
3
*Always follow manufacturer instructions*
*AAA Rent-All 225-291-1356*