Toro Greensmaster 3250-D 04383, Руководство по обслуживанию

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Greensmaster 3250−D Page 6 − 5 Chassis (Rev D)
Removal (Fig. 3)
1. Park machine on a level surface. Make sure engine
is off. Set brake and block front wheels.
2. Jack up and secure the rear wheel off the ground.
Note: The wheel assembly consists of the tire (12),
rim (13), and valve stem (14) with cap. The hub assem-
bly consists of the wheel hub (9), oil seals (6), bearing
cones (7), bearing cups (8), grease fitting (10), and drive
studs (11).
3. Remove lock nut (16) from bolt (5). Pull bolt from
both adapter plates (35 and 34), rear spindle spacers
(29), and the wheel and hub assemblies.
4. Remove wheel and hub assemblies from the castor
fork (4).
5. If damage to the bearings in the castor fork pivot
housing is suspected, remove castor fork (4) from the
frame as follows:
A. Remove three hex head screws and flat washers
securing the fuel tank base plate to the frame. The
two screws are located on the top of the plate at the
front corners of the tank. The third screw is in front of
the castor fork and below the plate.
B. Tilt fuel tank base up by lifting at the rear of the
machine to gain access to the top of the castor fork.
Prop up tank securely.
C. Remove both jam nuts (26) securing the ball joint
(17) to the castor fork (4).
CAUTION
Support castor fork (4) while removing the
slotted hex nut (1) to prevent the fork from drop-
ping and causing personal injury.
D. Remove cotter pin (2) and slotted hex nut (1)
from the castor fork (4) shaft. Lower castor fork from
the frame and make sure ball joint (17) releases
from the shaft ring of the steering cylinder (20).
E. Inspect bearing cones (27) and bearing cups
(28) for damage, and replace if necessary.
F. Remove bearing cones (27) and bearing cups
(28) from the castor fork pivot housing on the frame.
6. Remove lug nuts (15) from the drive studs (11) of the
wheel hub (9). Separate wheel and hub assemblies.
1. Bearing cup
2. Wheel hub
3. Bearing cone
4. Shaft seal
5. Drive stud
Figure 4
1
5
3
2
4
Disassembly (Fig. 3)
1. If drive studs (11) are bent or damaged, press studs
from the wheel hub (9).
2. Pull oil seals (6), bearing cones (7), and bearing
cups (8) from the wheel hub (9).
Assembly (Fig. 4)
1. Press new bearing cups into the wheel hub with the
thick edges towards the inside.
2. Install new bearing cones into the wheel hub. Press
new shaft seals into the hub with the lip of the seals fac-
ing towards the inside.
3. If removed. press new drive stud (11) into the wheel
hub (9).
Installation (Fig. 3)
1. Slide wheel assembly onto the drive studs (11).
Tighten lug nuts (15) to the drive studs (11) evenly in a
crossing pattern to a torque of 70 to 90 ft−lb (95 to 122
N−m).
2. If the bearings in the castor fork pivot housing were
removed, install castor fork (4) to the frame as follows:
A. Press new bearing cups (28) into the castor fork
pivot housing with the thick side of the cups facing
each other.
B. Pack both bearing cones (27) with No. 2 multi-
purpose lithium base grease. Place two steering
washers (3) onto the castor fork (4) shaft. Place
bearing cone on top of washers with the thick edge
touching the washers.
C. Insert castor fork shaft up through the pivot
housing and bearing cups.
Chassis