Pump Repair - Greensmaster 3100 shown (Fig. 22)
Figure 22
Relief Valve Service
Pump Service
1.
(Item 9), spring (Item 8), and ball (Item 7).
Remove cap (Item 10). Remove valve adjuster
1. Plug ports and wash exterior of pump with mineral
spirits or solvent. Make sure parts and work area are
clean.
2. Remove o-ring (Item 32) from cap.
2. Draw a line across the seam areas on the pump case
with a scribe or marker to ensure proper reassembly.
3.
Inspect ball for burrs or roughness. Inspect relief
valve bore and seat in bearing plate (Item 28).
IMPORTANT: Use caution when using a vise to avoid
distorting any parts.
4. Inspect spring for damage.
5. Clean and
Install ball, spring and valve adjuster.
dry all parts. Apply hydraulic oil to parts.
3. Secure the flange end of the pump (Item 15) in a vise
with the drive shaft (Item 20) pointing down.
6. Install new o-ring on cap and install cap.
4. Remove the four locknuts (Item 1) and lockwashers
(Item 2).
7. Before operating the machine, check steering relief
pressure and adjust to 800 psi. To adjust, remove cap,
turn adjuster clockwise to increase pressure and coun-
terclockwise decrease pressure. (See Test Hook Up No.
5, Steering Pump Flow and Steering Pump Relief Set-
ting in the Testing section of this chapter.)
5. Put your hand on the pump case and gently tap the
pump case with a soft face hammer to loosen the pump
sections. Be careful not to drop parts or disengage gear
mesh.
6. Before removing each gear set, apply marking dye to
mating teeth to retain “timing” when reassembling.
Greensmaster® 3100
Page 4 - 43
Repairs
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro Groundsmaster 3050, Toro Groundsmaster 3100 |
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| Document Type | Catalog |
| Language | English |
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| Publisher | toro.com |
| Wikipedia's Page | Toro Company |
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