Toro Groundsmaster 3500 30807, Руководство по обслуживанию

Страница: 155 / 283

Groundsmaster 3500 Hydraulic System Page 5 − 97
Removal (Fig. 62)
1. Park machine on a level surface. Lower cutting units,
stop engine and engage parking brake. Remove key
from the ignition switch.
WARNING
Before jacking up the machine, review and follow
Jacking Instructions in Chapter 1 − Safety.
2. Jack up front of machine enough to allow the removal
of the front wheel. Support machine with appropriate
jackstands.
IMPORTANT: DO NOT hit wheel hub, wheel hub
puller or wheel motor with a hammer during removal
or installation. Hammering may cause damage to
the wheel motor.
3. Remove wheel assembly, wheel hub and brake drum
from the hydraulic motor. Remove brake assembly from
the brake bracket (see Front Wheel and Brake Removal
in Chapter 7 − Wheels, Brakes, and Miscellaneous in
this manual).
4. Thoroughly clean hydraulic line ends and wheel mo-
tor fittings to prevent hydraulic system contamination.
WARNING
Before disconnecting or performing any work on
the hydraulic system, all pressure in the system
must be relieved. See Relieving Hydraulic Sys-
tem Pressure in the General Information section
of this chapter.
5. Disconnect hydraulic tubes from adapters on wheel
motors. Plug hose openings to prevent contamination.
6. Remove four (4) socket head screws and lock nuts
that secure brake bracket and wheel motor to frame.
Located and retrieve spacers. Remove brake bracket
and wheel motor from machine.
7. If necessary, remove hydraulic adapters and
O−rings from the wheel motor. Discard removed
O−rings.
Installation (Fig. 62)
1. If adapters were removed from wheel motor, lubri-
cate and place new O−rings onto fittings. Install ad-
apters into motor openings and tighten fittings (see
Hydraulic Fitting Installation in the General Information
section of this chapter).
2. Install wheel motor and brake bracket to frame using
four (4) socket head screws, spacers and lock nuts.
3. Remove caps and plugs from wheel motor fittings
and hoses. Using labels placed during motor removal,
properly connect hydraulic lines to motor (see Hydraulic
Hose and Tube Installation in this chapter).
4. Install brake assembly to the brake bracket. Install
brake drum, wheel hub and wheel assembly to the hy-
draulic motor (see Front Wheel and Brake Installation in
the Chapter 7 − Wheels, Brakes, and Miscellaneous in
this manual).
5. Lower the machine to the ground.
6. Make sure that lock nut is torqued from 250 to 275
ft−lb (339 to 372 N−m). Also, make sure that wheel lug
nuts are torqued from 45 to 65 ft−lb (61 to 88 N−m).
7. Make sure hydraulic tank is full. Add correct oil if ne-
cessary.
Hydraulic
System