Pump Repair - Toro Reelmaster 5100-D Service Manual

Pump Repair

1. Gear plate (2)
2. Dowel pin (2)
3. Cap screw (4)
4. Washer (4)
5. Cover assembly
6. Seal ring (6)
7. Gear plate
8. Retaining ring (2)
9. Gear
10. Woodruff key
Relief Valve Service
1. Remove cap (Fig. 93, Item 30). Remove valve ad-
juster (Item 28), spring (Item 27), and ball (Item 26).
2. Remove gasket (Item 29) from cap.
3. Inspect ball for burrs or roughness. Inspect relief
valve bore and seat in cover. If the bore or seat is
damaged the cover must be replaced.
4. Inspect spring for damage.
5. Clean and air dry all parts. Apply hydraulic oil to parts.
Install ball, spring and valve adjuster.
6. Install new gasket on cap and install cap.
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Reelmaster 5100-D
Figure 93
11. Drive shaft
12. Idler shaft assembly
13. Dowel pin (2)
14. Coupling (2)
15. Plate assembly
16. High press. load seal (4)
17. Pre-load high press. load seal (4)
18. Load plate (4)
19. Idler shaft (2)
20. Drive gear
7. Before operating the machine, check steering relief
pressure and adjust to 1250 psi. To adjust, remove cap,
turn adjuster clockwise to increase pressure and coun­
terclockwise to decrease pressure. (See Steering Valve
and Steering Pump Test in Chapter 7 - Steering and
Brakes.)
Pump Service
1. Plug ports and wash exterior of pump with cleaning
solvent.
2. Draw a line across seam areas on pump case with a
scribe or marker to ensure proper reassembly.
IMPORTANT: Use caution when clamping in a vise
to avoid distorting any parts.
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21. Dowel pin (2)
22. Oil seal
23. Pump body assembly
24. Drive shaft
25. Plate assembly
26. Ball
27. Spring
28. Valve adjuster
29. Gasket
30. Valve adjuster cap
Mowing Circuit Repairs