BEFCO D90-060, Operator'S Manual

Page: 31 / 60

5 - REPAIR PROCEDURES
CAUTION: All repair procedures must be done by authorized dealerships. It is not
recommended that untrained individuals perform any repair work.
The following
operations are detailed for qualified personnel only.
5.01 - Gearbox
To remove the gearbox from the frame do the following:
1. Remove the belt cover.
2. Disengage the belt tensioner pulley by releasing the adjustment bolt
(see #6, fig.
9)
14
.
3. Remove the belts
15
.
4. Unbolt the bolts holding the gearbox to the frame.
5. Unbolt the nuts which hold the gearbox to the drive tube.
If it is necessary to replace any part on the inside of the gearbox, it is important to
replace oil seals or gaskets to ensure a tight fit when reassembling.
To replace the gearbox, follow the above instructions in reverse order.
5.02 - Pulleys
To remove the pulleys do the following:
1. Remove the belt cover.
2. Disengage the belt tensioner pulley by releasing the adjustment bolt
(see #6, fig.
9)
16
.
3. Remove the top and bottom split lock bushings by removing all the screws that hold
them and transferring the required number of screws into the push-off threads.
Tighten the screws in a crosswise pattern in several steps until bushings disengage.
4. Remove pulleys.
To replace the pulleys do the following:
1. Slide the top pulley on the drive shaft ensuring it is flush with the spacer.
2. Slide the bottom pulley on the rotor shaft ensuring it is flush to the snap ring.
3. Insert the top and bottom split lock bushing, place the screws in the locking bores
and hand tighten the screws. Using a torque wrench set at 30 lb.ft (40 N.m), tighten
the screws in a crosswise pattern in several steps.
4. Place a straight edge across both pulleys to verify their alignment (see fig. 10) .
R
EPAIR
P
ROCEDURES
31
BEFCO
D
ESTROYER
D90 O
PERATOR
’
S
M
ANUAL
16
See Section 4.04 - Belt Tension.
15
See Section 4.05 - Belt Replacement.
14
See Section 4.04 - Belt Tension.