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Harley M6 - Ground Speed; Direction Control Switch; Hydraulic Drive Motor; Roller Rotation

Harley M6
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14 MODEL M6
OPERATIONAL PROCEDURE
Start prime mover engine.
Lower power rake slowly to the ground.
Engage hydraulic control lever for auxiliary implements.
Increase engine rpm to give desired rpm at the roller. Normal operating speed is approximately
270 rpm. If operating in heavy rock, reduce the speed slightly.
Move the prime mover forward or backward as desired. For the roller to operate effectively, it
must rotate in the opposite direction of the prime mover wheels, see Figure 6 below. Roller
rotation direction is controlled by prime mover hydraulic controls.
Figure 6. Roller Rotation
Ground Speed
Ground speed should be between 3 and 5 mph under normal conditions. In heavy rock, reduce
the ground speed to 1 to 3 mph.
Direction Control Switch (HYDRAULIC ANGLING MODEL ONLY)
A three position switch is provided to angle the rake left or right. The switch is equipped with
a magnetic mount and may be attached to a convenient steel surface near the operator. The
direction valve uses a small amount of hydraulic oil bypassed from the roller drive motor and will
only operate with the prime mover auxiliary hydraulic system engaged and with the roller turning
clockwise.
With the prime mover auxiliary hydraulic system engaged, move the spring loaded switch in one
direction and the rake will angle left or right. Return the switch to center position and rake will
maintain the angle selected. Pivot rake to place the windrow left or right of the skid-steer.
Hydraulic Drive Motor
The hydraulic drive motor runs off the auxiliary circuit of the prime mover. The power rake should
be run at 30% power for one hour for proper motor break-in.

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