Procedure for Cross–over Relief Pressures Test:
Make sure hydraulic oil is at normal operating tem-
perature by operating the machine for approximately 10
minutes. Make sure the hydraulic tank is full.
9. Remove test gauge and put cap on manifold port G1.
1.
IMPORTANT: Each reel motor has two cross–over
reliefs. Test reliefs in the backlap direction only if
they are expected to be a problem. After testing
cross–over reliefs in the backlap direction, make
sure the reel motor couplings are torqued (see Hy-
draulic Reel Motor in the Service and Repair section
of Chapter 7 – Cutting Units).
2.
Park machine on a level surface with the cutting units
lowered. Make sure engine is off and parking brake is
engaged. Back bedknives off all reels.
10.If
cross–over relief pressure is to be tested in the
CAUTION
backlap direction, clean left–hand reel motor and its
hose connection leading to manifold port M3. Discon-
nect hose connection and install pressure gauge with a
T–connection between the hose connection and the reel
motor.
Operate all hydraulic controls to relieve system
pressure and avoid injury from pressurized hy-
draulic oil.
11.
Put a block of wood between the blades of the cutting
unit being tested to prevent that reel from rotating.
3.
Clean manifold port G1. Remove cap and install
pressure gauge in manifold port G1.
12.Make
sure backlap knob on the valve block is in the
backlap position.
4.
Put a block of wood between the blades of the cutting
unit being tested to prevent that reel from rotating.
13.One
person should sit on the seat and operate the
machine while another person reads the gauge. Start
engine and move the throttle to full speed (3200 + 50
RPM).
5.
mow position.
Make sure backlap knob on the valve block is in the
6.
One person should sit on the seat and operate the
machine while another person reads the tester. Start en-
gine and set throttle to full speed (3200 + 50 RPM).
CAUTION
Keep away from reels during test to prevent per-
sonal injury from the rotating reel blades.
CAUTION
Keep away from reels during test to prevent per-
sonal injury from the rotating reel blades.
CAUTION
Do not allow system pressure to exceed 1700
PSI. Shut off unit to prevent an over pressure
condition.
CAUTION
Do not allow system pressure to exceed 1700
PSI. Shut off unit to prevent an over pressure
condition.
14.Engage cutting units. Observe pressure gauge.
Motor Position
Right Hand
Rear
Pressure Range (PSI)
1580 to 1680
7.
8.
Engage cutting units. Observe pressure gauge.
1540 to 1640
Motor Position
Right Hand
Rear
Pressure Range (PSI)
1500 to 1600
Left Hand
1500 to 1600
1540 to 1640
15.Disengage cutting units and stop engine. If specifica-
tions are not met, the cross–over relief needs replacing.
Remove block of wood from cutting unit and repeat test
on other reels in the backlap direction.
Left Hand
1580 to 1680
Disengage cutting units and stop engine. If specifica-
tions are not met, replace cross–over relief. If specifica-
tions are met, remove block of wood from cutting unit
and repeat test on other reels in mow direction.
16.Remove
Adjust bedknife to reel clearance on all cutting units (see
Cutting Unit Operator’s Manual).
test gauge and reconnect hose to motor.
Reelmaster 2000–D
Page 4 – 35
Hydraulic System
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| Tags | Toro Reelmaster 2000-D |
| Download File |
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| Document Type | Service Manual |
| Language | English |
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