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Conduct a Bore - 122
JT40/JT40 All Terrain Operator’s Manual
Start System
Start System
1.
Start drilling unit and remote fluid unit. Allow both engines to warm up.
2.
Enable DrillLok
®
mode if desired. See “DrillLok® System” on page 162.
3.
Increase engine to full throttle. See “Autothrottle control” on page 38.
4.
Press and hold quick fill fluid pump switch until pipe fills and fluid pressure begins to rise.
Prime Drilling Fluid Pump
Prime drilling fluid pump each time tank is changed. To prime the pump:
1.
Fill drilling fluid hose and connect hose to unit.
2.
Operate mixing/transfer pump at full speed for 1 - 3 minutes to discharge air from system.
3.
Return mixing/transfer pump to normal operating speed and continue the bore.
4.
If drilling fluid pressure surges are observed, repeat step 2.
IMPORTANT:
Ensure that mixture of drilling fluid matches drilling conditions. See “Drilling Fluid”
on page 158.
Read operator’s manual. Know how to use all controls.
Your safety is at stake.
273-475
.
To help avoid injury:
Failure to prime the drilling fluid pump will cause
flow fluctuations, which will make it difficult to control the washwand.
Pressurized fluid or air could pierce skin and cause
severe injury. Refer to operator’s manual for proper use.
270-6035
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 ...