Conduct a Bore - 118 JT100/JT100 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®” on page 162.
3. Press top of drilling unit throttle switch until engine is at full throttle.
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. Check gauge to ensure
at least 30 gpm (113.5 L/min) of flow.
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 157.
Read operator’s manual. Know how to use all controls.
Your safety is at stake.
273-475
To help avoid injury: Prime the drilling fluid pump to lessen flow
fluctuations, which can 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
IMPORTANT: If using drilling fluid recycling equipment, check mud weight before using it during bore.
Using drilling fluid with a mud weight higher than 9.2 lb/gal (1.1 kg/L) will decrease fluid pump life.
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