XCMG XZ320, Руководство по эксплуатации

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Manual of XZ320 Horizontal Directional Drill
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Pipes with large deformation shall be repaired or they shall be rejected.
9.11 Pipe jamming
Pipes may be jammed in the hole due to many residual mud blocks, hole
collapsing and hole shrinkage. Back tow pressure gauge will increase
gradually before jamming. Back towing speed shall be paused or reduced
and mud consumption shall be added when reading increases to avoid
pipe jamming. Pipes can be retracted by bulldozer and excavator for
re-borehole cleaning and pipe layout.
10 Add antifreeze fluid into the drill
Drill can operate in the night under low temperature by using approved
antifreeze fluid.
Steps to add antifreeze fluid
：
10.1 Connect one end to mud pump by a hole and the other end shall be
placed into the antifreeze fluid.
10.2 Adjust the mud pump to the minimum flow gear.
10.3 Start up the device and set the accelerator to the slow speed position.
10.4 Open the mud pump switch and start up the mud pump.
10.5 Until antifreeze fluid flows out of main axle.
10.6 Close the mud pump.
10.7 Remove the hose and keep it properly.
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