Blue Diamond Drum Mulcher, Руководство по эксплуатации и обслуживанию, Страница: 48 / 90

46
Drum Mulcher Operation and Maintenance Manual
Maintenance
Shift Pressure Adjustment
Figure 33
1. Connect a pressure gauge on the hydraulic
motor port M4; Pressure gauge range must be
the same as the maximum pressure expected
in the system
[Figure 33] .
2. Block the cutting drum so as to prevent rotation
when engaged.
3. Adjust the machine pressure limiter to the
desired shift pressure value.
4. Engage the mulcher pump.
5. Adjust screw on the hydraulic motor until M4
pressure reads half of the current system
pressure.
6. Turn adjusting screw clockwise to increase the
shift pressure.
Minimum Displacement Adjustment
Figure 34
1. Minimum Displacement Adjustment.
2. The minimum displacement screw setting
limits the motor maximum speed [Figure 34] .
3. Cutting drum maximum speed: 2400 rpm.
NOTE: Adjust while the mulcher is disengaged
and turned off.
4. Hold the adjusting screw in place and loosen
the locknut.
5. Turn adjusting screw clockwise to increase
minimum displacement (reduce speed) or
counterclockwise to decrease minimum
displacement (increase speed).
6. When properly adjusted, hold adjusting screw
in place and torque locknut to 32 ft-lb (45 N·m).
a. Turn adjusting screw clockwise to increase
the shift pressure.
b. Turn adjusting screw counterclockwise to
decrease the shift point pressure.
c. One full turn of the adjusting screw
changes the shift pressure by
approximately 1305 psi (90 bar).
d. Tighten adjusting screw locknut to 6 ft-lb (8
N·m).
e. Maximum shift pressure: 4,350 psi (300
bar).
a. 3.2cc (0.20in³) displacement change per
turn.