Toro Greensmaster 3150 Service Manual page 144

Removal (Fig. 7)
1. Park machine on a level surface. Make sure engine
is off. Make sure brake is in the OFF position.
2. Block front and rear of wheels not being jacked up.
Lift front wheel off the ground using a jack, and place
blocks beneath the frame under the hydraulic wheel mo-
tor (20).
3. Remove lug nuts (1), tire (2) and rim (3). Loosen but
do not remove lock nut (24) from hydraulic wheel motor
shaft.
IMPORTANT: DO NOT hit wheel hub (6) with a ham-
mer during removal or installation. Hammering may
cause damage to the hydraulic wheel motor.
4. Use wheel hub puller (see Special Tools) to free
wheel hub (6) and brake drum (5) assembly from motor
shaft. Remove lock nut (24), wheel hub and brake drum
assembly and key (13) from the hydraulic wheel motor
shaft.
5. Remove return springs (11) from brake shoes (12).
Remove brake shoes from backing plate (8).
6. Remove retaining ring (10) and brake cam (9) from
the brake lever (23) and backing plate (8).
7. Remove four cap screws (26), lock nuts (29), and
backing plate (8) from the brake bracket (14).
8. Parts should be clean and free of rust. Inspect brake
shoe (12) and brake drum (5) contact surfaces for ex-
cessive wear. Replace any worn or damaged parts.
Installation (Fig. 7 and 8)
1. Secure backing plate (8) to the brake bracket (14)
with the four hex head screws (26) and lock nuts (29).
2. Position both brake shoes (12) on the backing plate
(8). Insert return springs (11) into the holes of both brake
shoes (12).
Wheels and Brakes
1
1. Return spring
2. Brake shoe
3. Install brake cam (9) into the backing plate (8) and
brake lever (23). Secure cam to the lever with the retain-
ing ring (10).
4. Place antiseize lubricant on woodruff key (13) and
inside of the wheel hub (6). Mount key into shaft of hy-
draulic wheel motor (20). Slide hub over shaft and key.
5. Secure wheel hub (6) to motor shaft with lock nut
(24). Torque nut from 250 to 400 ft–lb (339 to 542 Nm).
6. Install rim (3) onto the wheel hub (6). Secure rim
with lug nuts (1) to the wheel hub (7) drive studs. Tighten
lug nuts evenly in a crossing pattern to a torque from
70 to 90 ft–lb (95 to 122 Nm).
7. Check and adjust brakes (see Brake Adjustment in
the traction unit Operator's Manual).
Rev. A
Page 6 – 10
2
Figure 8
3. Brake cam
4. Backing plate
Greensmaster 3150
3
4