Information - Toro ProPass 200 Service Manual

Control Valve Service (Machines with Standard Hydraulic Controls)
ProPass machines with standard hydraulic controls use
two (2) control valves for adjusting the speed of the floor
and rear option (twin spinner or conveyor) motors.
These control valves are located on the front of the hop-
per (Fig. 29).
NOTE: See Hydraulic Control (Machines with Standard
Hydraulic Controls) in this section for information on re-
moving the control valve from the machine.
Disassembly (Fig. 30)
NOTE: A seal kit is available for the control valve. If
wear or damage exists to the control valve body, side
lever or compensator spool, control valve assembly re-
placement is necessary.
1. Loosen set screw and slide handle from side lever.
2. Remove retaining rings that secure side lever in the
control valve body.
3. Slide seal retainers from side lever.
4. Pull side lever from control valve body. Remove
O--rings from side lever.
5. Remove plugs from control valve body. Slide com-
pensator spring and spool from body.
6. Clean control valve components.
7. Inspect side lever, compensator spool and control
valve body for wear or damage. Replace control valve
assembly if damage exists to these components.
Assembly (Fig. 30)
1. Lubricate new seal kit components with clean hy-
draulic oil and install new O--rings on side lever and
plugs.
2. Dip compensator spool and side lever into clean hy-
draulic oil.
3. Install plug into the control valve body port opposite
the bore for the compensator spool. Then, slide lubric-
ated compensator spool into body. Insert spring and in-
stall second plug into control valve body.
4. Slide lubricated side lever into control valve body. Fit
seal retainer and retaining ring to both ends of side lever
to secure side lever in control valve body.
5. Slide handle into side lever and secure with set
screw.
Hydraulic System
1
1. Floor control valve
10
9
7
4
5
2
1. Body
2. Set screw
3. Handle
4. Retaining ring
5. Seal retainer
6. O- -ring
Page 3 - - 30
Figure 29
2. Option control valve
11
6
7
8
1
6
Figure 30
7. O- -ring
8. Side lever
9. Plug with O- -ring
10. Compensator spring
11. Compensator spool
2
4
5
9
3
ProPass 200