Toro 41188, Service Manual

Page: 301 / 353

Multi Pro 1750 Chassis Page 8 − 23
Removal (Fig. 14)
1. Park machine on a level surface, stop spray pump,
stop engine and engage parking brake. Remove key
from ignition switch.
2. Remove front wheel and front brake caliper (see
Front Brakes in this chapter).
3. Carefully pry dust cap (item 3) from wheel hub.
4. Remove cotter pin and nut retainer (item 5) from
spindle.
5. Remove spindle nut (item 6) and tab washer that se-
cure wheel hub assembly to spindle. Slide wheel hub
with bearings and brake rotor from spindle.
6. Disassemble the wheel hub (Fig. 15):
A. Pull the seal out of the wheel hub and discard
seal.
B. Remove bearings from both sides of the wheel
hub. Clean bearings in solvent. Make sure bearings
are in good operating condition. Clean the inside of
the wheel hub. Check the bearing cups for wear, pit-
ting or other noticeable damage. Replace worn or
damaged parts.
C. Inspect wheel studs in hub and replace studs if
damaged. Use a press to remove wheel stud(s).
7. If necessary, remove brake rotor from wheel hub.
Installation (Fig. 14)
1. Assemble wheel hub (Fig. 17):
A. If any wheel studs were removed from hub, press
new stud(s) fully into hub making sure that stud
shoulder is tight against hub.
B. If bearing cups were removed from the wheel
hub, press bearing cups into the hub until they seat
against the hub shoulder.
C. Pack both bearings with grease and position in-
ner bearing into cup in the wheel hub.
IMPORTANT: The wheel hub seal must be
pressed in so it is flush with the end of the hub.
The lip of the seal must be toward the inner bear-
ing.
D. Lubricate the inside of the new seal and press it
into the wheel hub.
1. Front wheel hub
2. Seal
3. Bearing
cone
4. Bearing cup
5. Bearing cup
6. Bearing cone
7. Wheel stud (5)
Figure 15
2
3
6
1
5
4
7
2. If brake rotor was removed, secure rotor to hub with
four (4) socket head screws.
3. Slide wheel hub assembly onto spindle. Install
greased outer bearing, tab washer and jam nut onto
spindle.
4. Rotate the wheel hub by hand and tighten the jam nut
from 75 to 100 in-lb (8.5 to 11.3 N−m) to set the bear-
ings. Then, loosen the nut until the hub has end play.
5. Again, rotate the wheel hub by hand and tighten the
jam nut from 15 to 20 in-lb (1.7 to 2.3 N−m).
6. Position nut retainer over jam nut and install cotter
pin through spindle shaft hole. Install dust cap to hub.
7. Install front brake caliper and wheel (see Front
Brakes in this chapter).
Chassis