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RT70 Operator’s Manual
Maintenance - 173
Microtrencher Procedures
MT16
Check bits (shown) for wear every 100ft (30.5m). Change blade when bits are worn.
Fixed Bits
1. Remove blade cover.
2. Inspect all bits for wear.
3. Replace blade when bits are worn.
Change Blade
1. Start engine.
2. Position microtrencher slightly above ground.
3. Shut off machine.
4. Remove 6 wingnuts (1) from cover (2).
5. Remove 6 lug nuts (3).
6. Remove blade (4).
7. Clean threads (5).
8. Install new blade (note direction of rotation)
and secure with 6 lug nuts.
9. Tighten lug nuts to 600ft•lb (813.5N•m).
10. Install cover and secure with wingnuts.
Deflectors
MT12
Check deflectors (shown) every 10 hours when
not using a vacuum for spoils removal.
Clean vacuum chute as needed.
Change spoils deflectors on saw frame, cover and
spoils chutes as needed, making sure to orient
spoils chute as indicated on decal.
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Summary of Contents for RT70
Page 9: ...Overview 8 RT70 Operator s Manual About This Manual ...
Page 19: ...Safety 18 RT70 Operator s Manual Emergency Procedures ...
Page 31: ...Safety 30 RT70 Operator s Manual Attachment Safety Alerts ...
Page 83: ...Controls 82 RT70 Operator s Manual Seat ...
Page 89: ...Drive 88 RT70 Operator s Manual Shut Down ...
Page 97: ...Transport 96 RT70 Operator s Manual Haul ...
Page 103: ...Backhoe 102 RT70 Operator s Manual Finish Job ...
Page 123: ...Reel Carrier 122 RT70 Operator s Manual Finish Job ...
Page 129: ...Trench 128 RT70 Operator s Manual Finish Job ...
Page 141: ...Systems and Equipment 140 RT70 Operator s Manual Counterweights ...
Page 221: ...Specifications 220 RT70 Operator s Manual EU Declaration of Conformity ...