Procedure for Gear Pump (P1) Flow Test
Make sure hydraulic oil is at normal operating tem-
CAUTION
1.
peraturebyoperatingthemachineforapproximatelyten
(10)
minutes.
Donotengagethecuttingunitswhenperforming
this test.
2.
Park machine on a level surface with the cutting
units lowered. Make sure engine is off and the parking
brake is engaged. Make sure the hydraulic tank is full.
7.
50
Start engine and move throttle to full speed (2750 +
RPM).
8.
ing the flow control valve on the tester until 2000 PSI
(138 bar) is obtained.
Watch pressure gauge carefully while slowly clos-
CAUTION
Before continuing further, read and become fa-
miliar with Precautions for Hydraulic Testing.
9.
cord test results.
Flow indication should be 5.8 GPM minimum. Re-
3.
that leads to port P1 on the hydraulic manifold.
Ongearpump(P1)(reeldrive),disconnect thehose
10.
11.
PSI (138 bar) cannot be obtained, check for restriction
in the pump intake line. If line is not restricted, remove
pump and repair or replace as necessary.
Open control valve on tester and shut off engine.
If flow was less than 5.8 GPM or a pressure of 2000
4.
Install tester with pressure gauge and flow meter in
series with gear pump (P1) and the disconnected hose.
Makesuretheflowcontrolvalveonthetesterisfully
open.
12.
pump and hose. Reconnect hose to the pump.
If testing is complete, disconnect tester from gear
5.
sure backlap knob on the manifold block is in the mow
If a backlap kit is installed on the machine, make
position and reel speed is set to maximum.
6.
Make sure tester load valve is fully open before
starting the engine.
Greensmaster 3250--D
Page 4 -- 45
Hydraulic System (Rev. I)
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro Greensmaster 3250 D |
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| Document Type | Service Manual |
| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
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| Publisher | toro.com |
| Wikipedia's Page | Toro Company |
| Copyright | Attribution Non-commercial |
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