Blue Diamond Drum Mulcher, Руководство по эксплуатации и обслуживанию, Страница: 43 / 90

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Drum Mulcher Operation and Maintenance Manual
Maintenance
Replacement
Figure 22
1. Install replacement inner shaft seal in the
bearing housing.
2. Install the empty bearing housing back in
position.
3. Pack the replacement bearing with grease on
both sides in between the bearing internal
rollers.
4. Insert the inner and outer bearing spacer and
bearing as shown in [Figure 22] .
5. Place the bearing locknut without the daisy
lock washer.
6. Screw the bearing locknut gradually coaxing
the bearing along in position.
7. Torque the bearing locking nut to 150 ft-lb (205
N·m).
8. Unscrew the bearing locking nut and remove it.
9. Install the daisy lock washer.
10. Apply medium strength thread-locker on the
shaft bearing locknut threads.
11. Install the bearing locking nut and torque to
150 ft-lb (205 N·m) and line up with one of the
daisy lock washer petals with one of the
bearing locknut groove.
12. Bend one of the daisy lock washer petals to
lock the bearing locknut.
13. Torque the bearing housing fasteners to 174 ft-
lb (236 N·m) with medium strength thread-
locker.
Figure 23
1. Pack the space between the bearing and the
bearing housing cover with grease [Figure 23] .
2. Install replacement bearing housing cover
shaft seal.
3. Install the bearing housing cover and torque
the fasteners with a medium strength thread-
locker to 25 ft-lb (34 N·m).
4. With a pry bar, inspect the cutting drum for left
to right play. Expect 1/8” to 1/4” play.
5. Ensure the cutting drum can turn freely with a
push of a foot.
6. Connect the bearing housing grease lines.
Bearing break-in
With the panels removed, engage the mulcher at
full speed and monitor the bearing temperature
with a temperature gun. The break in process can
take up to 3 hours.
Expect the temperature to rise steadily to
maximum 300ºF (149ºC) and then drop. The
break in period can stop as soon as a temperature
drop is observed.
A steady rise in temperature without drop is
indicative of a bad bearing or bad installation.