Maintenance - 186
RT70 Operator’s Manual
Trencher Procedures
Digging Chain
Check every 10 hours. Change digging chain as needed.
Check
Bits
1. If using rock chain bits, check that bits rotate
freely.
2. Clean chain and check bits after each use.
3. Replace bit when carbide cap or insert is
worn.
Pins and Bushings
Check pins and bushings for wear by measuring
distance between chain pins (3) and comparing it
with a new chain.
Sidebars
If sidebars (2) are bent or loose on chain pins, chain spacers should be used to join sidebars.
Teeth
Check teeth (1) for wear.
Contents under pressure. Impact can cause death or
serious injury. Relieve pressure before opening.
To help avoid injury:
• Service digging boom grease cylinder only while standing on opposite side of boom.
• Cover connection with heavy cloth when relieving pressure in cylinder.
NOTICE:
Replace worn teeth using Ditch Witch replacement parts and maintaining original tooth
pattern.
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 ...