Multi Pro 5700 - Toro

Pulse Width Modulated (PWM) Valve
9
8
13
1
3
4
5
11
10
9
12
8
10
14
15
16
17
FRONT
RIGHT
2
6
7
18
5
19
20
7
17
1. Spray pump assembly
2. Flange nut
3. Flange head screw
4. Rear guard plate
5. Flange nut (3 used)
6. Front guard plate
7. Hydraulic hose (PWM to motor)
Figure 44
8. O -ring
9. Hydraulic fitting
10. O -ring
11. Cap screw (2 used)
12. PWM Valve
13. Hydraulic hose (from gear pump)
14. Hydraulic tee fitting
15. Hydraulic hose (to oil cooler)
16. O -ring
17. Hydraulic hose (motor to PWM tee)
18. Flat washer (2 used)
19. Hydraulic motor
20. Pump mount bracket
The Pulse Width Modulated (PWM) Valve is used on the
Multi Pro 5700--D to control gear pump flow to the spray
pump hydraulic motor. Electrical current to the PWM
Valve solenoid coil affects the internal spool setting of
the Valve and thus the hydraulic flow to the spray pump
motor.
For information on PWM Valve solenoid testing, see
Pulse Width Modulated (PWM) Valve Solenoid in the
Component Testing section of Chapter 5 -- Electrical
System.
IMPORTANT: Correct operation of the PWM Valve
depends on precise assembly and adjustment. No
disassembly or adjustment of the PWM Valve is recommended.
Internal parts for the PWM valve are not available. On
machines with serial numbers above 260000300, the
PWM valve solenoid coil is available as a separate component.
Refer to your parts catalog for replacement part
information.
Hydraulic System Page 4 - 46
Rev. D
Multi Pro 5700--D