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REPAIR AND ADJUSTMENT
HOW TO SERVICE
THE FRICTION
DRIVE
How To Replace The Drive Disc
NOTE: It is not necessary to disassemble the friction drive system
to replace the drive disc.
1.
Engage the parking brake.
2.
Move the shift lever to the fastest speed position.
3.
Disconnect the spring from the carriage arm.
4.
Set the mower housing in the lowest helght of cut position.
5.
To keep the drive disc from rotating, put a large screwdriver
under the drive disc between the fins and the frame chassis.
6.
Use a 9/t 6 inch socket wrench to remove the nut that holds
the drive disc in place.
7.
Remove the motion drive belt from the belt idler. See the
drawing. Insert (A) below.
8.
Pull on the motion drive pulley until the drive disc separates
from the shaft.
9.
Remove the old drive disc. Lift the motion drive pulley into
position. Align the shim washer and the special (double DID)
washer on the shaft.
10.
Replace the drive disc. Fasten the hex nut to the shaft. To
keep the drive disc from turning, put a screwdriver under the
drive disc between the fins and the frame chassis.
11.
Use a 9/16 inch socket wrench and tighten the nut to a tor-
que of 18 foot pounds. Remove the screwdriver.
12.
Attach the spring to the carriage arm.
Drive Disc
B
Locknut
.___
pecial Washer
(Double DID)
Shim Washer
Shaft
Carriage Arm
D-4664-1_
F-88516
\
6
0x Nut
'"After the parts are assembled
to 16-18 foot pounds.
Drive Disc
Spring
23
Motion
I
A
|let
_y
Motion
Drive
Spring for
Belt idler
D-4729-_
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