caution - Toro
caution - Toro
caution - Toro
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3. Chock rear wheels and jack up front of machine (see<br />
Jacking Instructions in Chapter 1 -- Safety). Support machine<br />
with suitable jack stands.<br />
4. Remove front wheel assembly.<br />
5. Remove hydraulic wheel motor (see Front Wheel<br />
Motors in Service and Repairs section of Chapter 4 --<br />
Hydraulic System).<br />
6. Disconnect brake cable from pull rod on brake assembly.<br />
8. Make sure drain plug is installed in bottom of brake<br />
assembly (Fig. 3). Fill planetary wheel drive/brake assembly<br />
with SAE 85W--140 gear lube. Capacity is<br />
approximately 16 fl. oz. (0.47 liters) per wheel.<br />
9. Check and adjust brake cables for proper brake operation.<br />
If necessary, adjust brake cable jam nuts at<br />
frame bracket so that pull rod jam nut is positioned from<br />
0.470” to 0.530” (12.0 to 13.4 mm) from brake casting<br />
surface when brakes are disengaged (Fig. 4).<br />
7. Support brake assembly to prevent it from falling.<br />
8. Remove four (4) flange head screws (item 9) securing<br />
brake assembly to machine. Remove brake assembly<br />
taking care to not drop splined brake coupler as<br />
brake assembly is removed.<br />
9. Remove splined brake coupler.<br />
10.Complete brake inspection and repair (see Brake Inspection<br />
and Repair in this section).<br />
3<br />
1. Brake coupler step<br />
2. Hydraulic motor end<br />
Figure 2<br />
1<br />
2<br />
3. Planetary assembly end<br />
Installation (Fig. 1)<br />
1. Slide splined brake coupler into brake assembly.<br />
NOTE: The stepped end of the coupler must be installed<br />
toward the hydraulic wheel motor (Fig. 2).<br />
1<br />
2<br />
2. Position brake assembly to frame, aligning splined<br />
brake coupler with input shaft on planetary wheel drive.<br />
3. Install four (4) flange head screws to secure brake<br />
assembly to frame. Torque screws in a crossing pattern<br />
from 75 to 85 ft -lb (101 to 115 N -m).<br />
4. Install brake cable to pull rod on brake assembly.<br />
Brake cable end should be completely threaded onto<br />
pull rod.<br />
5. Install new O--ring on hydraulic wheel motor. Install<br />
wheel motor and torque cap screws from 75 to 85 ft -lb<br />
(101 to 115 N -m).<br />
1. Brake housing<br />
2. Check plug<br />
3<br />
Figure 3<br />
3. Drain plug<br />
Axles, Planetaries<br />
and Brakes<br />
6. Install wheel assembly.<br />
0.470” to 0.530”<br />
(12.0 to 13.4 mm)<br />
WARNING<br />
Failure to maintain proper torque could result in<br />
failure or loss of wheel and may result in personal<br />
injury.<br />
1<br />
2 3 4<br />
7. Lower machine to ground. Torque lug nuts from 85<br />
to 100 ft -lb (115 to 135 N -m).<br />
1. Pull rod jam nut<br />
2. Brake cable end<br />
Figure 4<br />
3. Cable jam nut<br />
4. Brake cable<br />
Groundsmaster 4100--D Page 6 - 5 Axles, Planetaries and Brakes
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