Toro Groundsmaster
4000?D Service Manual page 189

PRELIMINARY – For Toro Distributor and Toro Company use only.
Planetary Wheel Drive Removal
1. Park machine on a level surface, lower cutting units,
stop engine, engage parking brake and remove key
from the ignition switch.
2. Drain oil from planetary wheel drive/brake assembly.
When changing attachments, tires or perform-
ing other service, use correct jacks and sup-
ports. Make sure machine is parked on a solid,
level surface such as a concrete floor. Prior to
raising machine, remove any attachments that
may interfere with the safe and proper raising of
the machine. Always chock or block wheels. Use
jack stands to support the raised machine. If the
machine is not properly supported by jack
stands, the machine may move or fall, which
may result in personal injury.
3. Chock rear wheels and jack up front of machine (see
Jacking Instructions in Chapter 1 − Safety). Support ma-
chine with jack stands or solid wood blocks.
4. Remove front wheel assembly.
5. Remove hydraulic wheel motor (see Front Wheel
Motors in the Service and Repairs section of Chapter 4
− Hydraulic System).
6. Remove brake assembly (see Brake Assembly in
this section).
7. Support planetary assembly to prevent it from falling.
Loosen and remove flange head screws that secure
planetary assembly to frame. Remove planetary as-
sembly from machine.
Planetary Wheel Drive Installation
1. Position planetary assembly to machine. Install
flange head screws that secure planetary assembly.
Torque screws from 75 to 85 ft−lb (101 to 115 N−m).
2. Install brake assembly (see Brake Assembly in this
section).
3. Install hydraulic wheel motor (see Front Wheel Mo-
tors in the Service and Repairs section of Chapter 4 −
Hydraulic System).
Groundsmaster 4000−D
CAUTION
Failure to maintain proper wheel lug nut torque
could result in failure or loss of wheel and may
result in personal injury.
4. Install wheel assembly. Torque lug nuts from 85 to
100 ft−lb (115 to 135 N−m).
5. Lower machine from jack stands.
6. Make sure drain plug is installed in bottom of brake
assembly (Fig. 6). Fill planetary wheel drive/brake as-
sembly with SAE 85W−140 gear lube. Capacity is
approximately 16 fl. oz. (0.47 liters) per wheel.
7. Check and adjust brake cables for proper brake op-
eration.
1. Brake housing
2. Check plug
Page 6 − 9
WARNING
1
2
3
Figure 6
3. Drain plug
Axles, Planetaries and Brakes