HYDRAULICS
8O-59
Front Reel Valve Test
Section one of the triple gear pumps supplies hydraulic
flow to the front reel valve.
1. Shut down engine and remove ignition key.
2. Connect the flow meter to the reel (auxiliary)
hydraulic pump section one. Connect the flow
meter IN port to the section one pressure fitting
and the flow meter OUT port to section one pres-
sure hose (Figure 8O-9).
3. Set parking brake, start engine, and advance
engine speed to full throttle.
4. Record pump section one no load flow indication
(c).
5. Slowly close tester load valve until 1000 psi (6894
kPa) is indicated on the pressure gauge. Record
flow indication (d).
6. Subtract flow indication (d) from flow indication
(c). The result is section one pump leakage.
Conclusion
• If leakage is less that ½ gpm (1.9 lpm), pump is not
at fault.
• If leakage is ½ to 1 gpm (1.9 to 3.8 lpm), pump and/
or reel valve circuit relief is marginal.
• If leakage is 1 gpm (3.8 lpm) pump and/or reel valve
circuit relief may be faulty.
7. Shut down the engine and remove the ignition
key.
8. Remove test equipment and connect hose to
pump.
Figure 8O-9. Front Reel Pump Test
Load
Valve
In
Out
Pump Section
One Outlet
Hose
Pump Section
One Outlet
Fitting
Содержание Jacobsen Super LF 1880 Fairway Mower with ROPS
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Страница 263: ...ATTACHMENTS 12F 19 Figure 12F 3 Mower Unit Repair Sheet 2 of 2...
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Страница 292: ...OPTIONS 13D 20 Figure 13D 1 Power Rear Roller Cleaner...
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