Toro Reelmaster 2000-D, Service Manual

Page: 69 / 208

Procedure for Manifold Relief Valve Pressure 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 connections of right hand reel motor.
Disconnect the hose leading from the right hand reel
motor to port M2 on the hydraulic manifold.
IMPORTANT: Make sure oil flow indicator arrow on
the flow gauge is showing that the oil will flow from
the hose through the tester and into the motor.
5. Install flow tester with pressure gauges in series with
the hose and motor. 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. Make sure reel speed knob is set to posi-
tion 9 or greater.
CAUTION
sonal injury from the rotating reel blades.
Keep away from reels during test to prevent per-
7. Start engine and move throttle to full speed ( 3200 +
50 RPM ). Engage the cutting units.
8. Watch pressure gauge carefully while slowly closing
the flow control valve until the manifold relief opens.
9. System pressure should be from 2700 to 3300 PSI
as the relief valve opens.
A. If specification is not met, adjust relief valve (step
10).
B. If this specification is met, go to step 11.
NOTE: Do not remove relief valve from the hydraulic
manifold for adjustment.
10.Adjust the relief valve pressure as follows:
A. Remove the cap from the relief valve (Fig. 28).
B. To increase the relief valve pressure setting, use
an allen wrench and turn adjustment socket slightly
clockwise. A 1/8 turn on the socket will make a mea-
surable change in relief pressure.
C. To decrease the relief valve pressure setting, use
an allen wrench and turn adjustment socket slightly
counterclockwise. A 1/8 turn on the socket will make
a measurable change in relief pressure.
D. Repeat steps 1 through 10 above until the relief
valve pressure setting is correct. Reinstall cap on re-
lief valve when valve is set properly.
E. If the relief valve pressure set point cannot be ad-
justed to specification, go to step 11 and replace the
relief valve.
11. Disengage cutting units. Shut off engine.
12.Disconnect tester from manifold and hose. Recon-
nect hose to the pump.
1
2
Figure 28
1. Reel drive hydraulic manifold
2. Reel relief valve
Hydraulic System
Reelmaster 2000–D Page 4 – 33 Hydraulic System