Toro Pro Sweep 5200 Service Manual page 31

Removal (Fig. 8)
1. Empty sweeper hopper and position sweeper on a
level surface. Chock sweeper wheels to prevent sweep-
er from moving. If sweeper is attached to tow vehicle,
engage tow vehicle parking brake, stop engine and re-
move key from the ignition switch.
CAUTION
Operate all sweeper hydraulic controls to relieve
system pressure and to avoid injury from pres-
surized hydraulic oil. See Relieving Hydraulic
System Pressure in the General Information sec-
tion of this chapter.
2. Relieve sweeper hydraulic system pressure.
3. Clean brush motor and hydraulic connections. Label
hydraulic lines for assembly purposes.
4. Disconnect hydraulic lines from hydraulic fittings on
brush motor. Allow hydraulic oil to drain from lines into
a suitable container. Put caps or plugs on open hydraulic
lines and fittings to prevent contamination.
5. Remove upper coupling cover from brush housing.
6. Support brush motor. Remove two (2) cap screws
(item 14), flat washers (item 7) and lock nuts (item 6) that
secure motor to frame. Pull brush motor (with coupling
jaw attached) from the machine.
IMPORTANT: To prevent damage to hydraulic motor,
DO NOT hit coupling jaw or motor with a hammer
during coupling jaw removal or installation.
7. Loosen set screw that secures coupling jaw to brush
motor shaft. Use puller to remove coupler from motor
shaft. Locate and retrieve key from motor shaft.
8. If required, remove hydraulic fittings and o–rings
from the wheel motor. Discard o–rings.
Installation (Fig. 8)
1. If removed, install hydraulic fittings with new o–rings
into the brush motor ports (see Hydraulic Fitting Installa-
tion in the General Information section of this chapter).
2. If coupling jaw was removed from motor, position key
into shaft keyway and slide coupling jaw onto shaft.
Make sure that coupling spider is positioned into cou-
pling jaw on brush shaft.
3. Position and support brush motor to the frame. Make
sure to align coupling jaw on motor shaft with coupling
spider.
Pro Sweep 5200
4. Align motor shaft with brush shaft. Secure brush mo-
tor to frame with two (2) cap screws (item 14), flat wash-
ers (item 7) and lock nuts (item 6). Torque lock nuts from
67 to 83 ft–lb (91 to 112 N–m).
5. Position coupling jaw on motor shaft to allow a gap
between coupler jaw valleys from .830" to .930" (21.1 to
23.6 mm) (Fig. 10). Apply Loctite #242 (or equivalent) to
threads of coupling set screw. Secure coupling jaw to
motor shaft by torquing set screw from 125 to 155 in–lb
(14.1 to 17.5 N–m).
6. Remove caps or plugs that were put on any hydraulic
lines or fittings during disassembly.
7. Install hydraulic hoses to hydraulic fittings on brush
motor. Tighten connections.
8. Install upper coupling cover to brush housing.
6
125 to 155 in–lb
(14.1 to 17.5 N–m)
1. Hydraulic brush motor
2. Key
3. Coupling jaw
4. Coupling spider
2
1
1. Brush shaft
2. Brush coupling jaw
3. Coupling spider
Page 3 – 15
5
3
4
3
2
7
Loctite #242
Figure 9
5. Brush
6. Square key
7. Set screw
3
5
.830" to .930"
(21.1 to 23.6 mm)
Figure 10
4. Motor coupling jaw
5. Motor shaft
Hydraulic System
1
4