Toro Reelmaster 2000-D, Руководство по обслуживанию

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Procedure for Reel Gear Pump Flow Test:
1. Make sure hydraulic oil is at normal operating tem-
perature by operating the machine for approximately 10
minutes.
2. Park machine on a level surface with the cutting units
lowered. Make sure engine is off and the parking brake
is engaged.
3. Read Precautions For Hydraulic Testing.
CAUTION
draulic oil.
Operate all hydraulic controls to relieve system
pressure and avoid injury from pressurized hy-
4. Clean hose connection and reel gear pump. Discon-
nect hose connection on the reel gear pump leading to
port P1 on the hydraulic manifold (Fig. 25).
IMPORTANT: Make sure oil flow indicator arrow on
the flow gauge is showing that the oil will flow from
the pump through the tester and into the valve
block.
5. Install flow tester with pressure gauges in series with
reel gear pump and the disconnected hose leading to
port P1 of the hydraulic manifold. Make sure the flow
control valve on the tester is fully open.
6. Make sure backlap knob on the valve block is in the
mow position.
7. Start engine and move throttle to full speed ( 3200 +
50 RPM ). Do not engage the cutting units .
8. Watch pressure gauge carefully while slowly closing
the flow control valve until
1500 PSI is obtained. Verify
with a phototac that the pump speed is 2825 RPM .
9. Flow indication should be approximately 5.9 GPM .
10.Shut off engine.
11. Disconnect tester from manifold and hose. Recon-
nect hose to the pump.
12.If flow was less than 5.9 GPM or a pressure of 1500
PSI cannot be obtained, check for restriction in the pump
suction hose. If suction hose is not restricted, remove
reel gear pump and repair or replace as necessary.
1
2
3
Figure 25
1. Reel gear pump 3. Suction hose
2. Hose to manifold P1
TESTER
2
1
3
3
Figure 26
1. Disconnected hose 3. O–ring
2. Reel gear pump
Hydraulic System
Reelmaster 2000–D Page 4 – 31 Hydraulic System