5.
Thoroughly clean test port (G4) on lift control man-
10.If measured pressure is incorrect, remove solenoid
relief valve (SVRV) on lift control manifold and clean or
replace valve (see Lift Control Manifold Service in the
Service and Repairs section of this chapter). Also, if
pressure is low, check for restriction in pump intake line.
Internal lift cylinder leakage would also cause low lift cir-
cuit pressure (see Lift Cylinder Internal Leakage Test in
this section). Gear pump (P4) could also be suspected
of wear, damage or inefficiency.
ifold. Access to test port can be obtained from below the
frontofthemachine.Connecta5000PSI(350bar)pres-
sure gauge to test port.
6.
After installing pressure gauge to manifold test port,
startengineandrunatidlespeed.Checkforanyhydrau-
licleakagefromtestconnectionsandcorrectbeforepro-
ceeding with test.
7.
Move throttle to full speed (3200 RPM).
11.
After testing is completed, make sure that engine is
stopped, then relieve hydraulic system pressure (See
Relieving Hydraulic System Pressure in the General In-
formation section of this chapter). Disconnect pressure
gauge from lift control manifold test port.
IMPORTANT: Do not allow pressure to exceed 2500
PSI (172 bar).
IMPORTANT: While performing this test, hold Low-
er -- Mow/Raise lever in the raise position only long
enough to get a system pressure reading. Holding
the lever in raise for an extended period may dam-
age system components.
8.
MakesurethatPTOswitchisOFFandthenpullLow-
er -- Mow/Raise lever rearward to pressurize lift circuit.
While holding lever in the raise (rearward) position,
watchpressure gaugecarefully.Asthecutting unitsfully
raiseandtheliftreliefvalvelifts,systempressureshould
be:
Approximately 2000 PSI (138 bar)
9.
Return the Lower -- Mow/Raise lever to the neutral
position and stop the engine.
Reelmaster 5010 Series
Page 4 -- 45 Rev. B
Hydraulic System
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
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| Download File |
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| Document Type | Catalog, Service Manual |
| Language | English |
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| Publisher | toro.com |
| Wikipedia's Page | Toro Company |
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