OPERATING INSTRUCTIONS
CONTROLS
617 TRENCHER
G
G
STARTING AND STOPPING THE TRENCHER
Power to the trencher is supplied by oil from the skid steer auxiliary hydraulic
system, which passes through the hydraulic hoses and into the trencher's hydraulic
motor.
The trencher unit itself does not have an on/off control but is operated by the
skid steer auxiliary hydraulic control mechanism. The start the trencher, engage the
auxiliary hydraulics. (This is usually done by a pedal located in the middle of the
skid steer floor. See your skid steer owner's manual.) To stop the trencher, disen-
gage the auxiliary hydraulics.
TRENCHER SPEED CONTROL
Again it may be noted that power to the trencher is supplied by the skid
steer's auxiliary hydraulics. Trencher speed and power are determined by the flow
of oil coming out of the auxiliary system, which in turn is dependent upon skid steer
engine speed. To increase trencher speed, increase skid steer engine speed, to
decrease trencher speed, decrease skid steer engine speed.
When first starting a trench throttle down the skid steer engine to half throttle.
This will reduce the shock to the skid steer and trencher when the digging teeth first
contact the ground. Once the trench is started, set the engine back to full throttle.
For general use operate the trencher with the skid steer engine at full throttle
to provide maximum power to the auxiliary hydraulics and thus the trencher.
AUGER HEIGHT
The auger is fixed to the trencher mainframe and has no separate adjust-
ment. To raise the auger, raise the trencher as previously described. This will raise
the auger and thus leave the dirt or spoil closer to the trench.
Lowering the trencher will cause the auger to lower, moving the spoil away
from the trench. The built-in skid shoe on the 617 trencher will prevent the auger
from being lowered to the extent that the auger itself starts to dig in the ground as
this will greatly reduce efficiency.
5784
2-23-92
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