Servicing The Polar Trac Hydraulic Control Valve - Toro Groundsmaster 7210 Service Manual

Servicing the Polar Trac Hydraulic Control Valve

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1. Check poppet
2. Detent plunger
3. Spacer
4. Spool
5. Seat (3 each)
6. Solid plug
7. Seat retaining plug (2 each)
8. Bushing
9. Check spring
10. Spool cap (2 each)
11. Valve body
Disassembling the Polar Trac Hydraulic Control Valve
Groundsmaster 7210
16222SL Rev C
12. O-ring
13. Retaining ring
14. Washer
15. Seat retaining plug
16. Spool spring
17. Disc
18. Plug
19. Detent plug
20. Wiper seal
21. Plunger
22. Detent plunger
1. Plug all the ports and clean the outer surface of the valve.
Figure 126
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Page 4–121
Detent spring
O-ring
O-ring
Back-up washer
O-ring
O-ring
O-ring
Back-up washer
Plug
O-ring
Spool
Hydraulic System: Service and Repairs