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Prepare - 92
JT40/JT40 All Terrain Operator’s Manual
Plan Bore Path
Recommended Bend Limits
Ditch Witch
®
drill pipes are designed to bend slightly during operation. Slight bending allows for steering
and correcting direction. Bending beyond recommended limits will cause damage that might not be visible.
This damage adds up and will later lead to sudden drill pipe failure.
Pipe Pitch
Ditch Witch drill pipe is tested to bend at a maximum
percent pitch.
Make sure pitch (A) changes no more than the
following percentages over the full length of each pipe.
Monitor the pitch of each pipe with the tracker remote display on the operator’s console. (See tracking
system operation instructions.)
IMPORTANT:
Consider recommended bend limits during any bend, not just during bore entry.
JT Power Pipe
®
HD
JT HIWS1
AT pipe
10.3%
10.4%
8.9%
NOTICE:
Bending drill pipe more sharply than recommended will damage pipe and cause failure over
time. Changes in pitch must be
equally distributed
over the length of a pipe. Maximum changes in
pitch within 1-2’ (300-600 mm) of pipe create sharp bends that will damage pipe.
Summary of Contents for JT40
Page 1: ...JT40 JT40 All Terrain HRC and LRC Issue 1 0 Original Instruction Operator s Manual 053 2966 ...
Page 79: ...Controls 78 JT40 JT40 All Terrain Operator s Manual Battery Disconnect ...
Page 113: ...Drive 112 JT40 JT40 All Terrain Operator s Manual Shut Down Unit ...
Page 119: ...Transport 118 JT40 JT40 All Terrain Operator s Manual Retrieve ...
Page 147: ...Conduct a Bore 146 JT40 JT40 All Terrain Operator s Manual Remove Pullback Device ...
Page 199: ...Complete the Job 198 JT40 JT40 All Terrain Operator s Manual Stow Tools ...
Page 241: ...Service 240 JT40 JT40 All Terrain Operator s Manual As Needed ...
Page 250: ......
Page 251: ......
Page 253: ...Service Record 252 JT40 JT40 All Terrain Operator s Manual Service Performed Date Hours ...