Service - 92 410sx Operator’s Manual
10 Hour
Trencher
Lube Trencher Outboard Auger
Bearing
Wipe zerk clean and lube every 10 hours with 8-
10 pumps of MPG.
Check Digging Chain Tension
If unit is equipped with H400 trenching
attachment, check digging chain tension every 10
hours.
To adjust chain with roller boom:
1. Lower boom to ground and stop engine.
2. Engage parking brake.
3. Loosen four trencher clamp bolts (1).
4. Loosen jam nut (2) and turn adjusting screw
78 ft•lb (106 N•m). Distance between chain
and boom (A) should be approximately 1” (25
mm).
5. Tighten jam nut.
To adjust chain with sprocket boom:
1. Lower boom and stop engine.
2. Engage parking brake.
3. Adjust chain tension by tightening or
loosening adjustment screw (2) and jam nut
(1). Digging chain tension is correct when 1-
1.5” (25-40 mm) of slide and stop is exposed
(3).
4. Tighten jam nut.
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