Toro Reelmaster 2000-D, Руководство по обслуживанию

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Procedure for Cross–over Relief Pressures Test:
1. 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.
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.
CAUTION
draulic oil.
Operate all hydraulic controls to relieve system
pressure and avoid injury from pressurized hy-
3. Clean manifold port G1. Remove cap and install
pressure gauge in manifold port G1.
4. Put a block of wood between the blades of the cutting
unit being tested to prevent that reel from rotating.
5. Make sure backlap knob on the valve block is in the
mow position.
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
sonal injury from the rotating reel blades.
CAUTION
Do not allow system pressure to exceed 1700
condition.
Keep away from reels during test to prevent per-
PSI. Shut off unit to prevent an over pressure
7. Engage cutting units. Observe pressure gauge.
8. 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.
9. Remove test gauge and put cap on manifold port G1.
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).
10.If cross–over relief pressure is to be tested in the
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.
11. Put a block of wood between the blades of the cutting
unit being tested to prevent that reel from rotating.
12.Make sure backlap knob on the valve block is in the
backlap position.
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 ).
CAUTION
sonal injury from the rotating reel blades.
CAUTION
Do not allow system pressure to exceed 1700
condition.
Keep away from reels during test to prevent per-
PSI. Shut off unit to prevent an over pressure
14.Engage cutting units. Observe pressure gauge.
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.
16.Remove test gauge and reconnect hose to motor.
Adjust bedknife to reel clearance on all cutting units (see
Cutting Unit Operator’s Manual).
Hydraulic System
Motor Position Pressure Range (PSI)
Right Hand 1580 to 1680
Rear 1540 to 1640
Left Hand 1500 to 1600
Motor Position Pressure Range (PSI)
Right Hand 1500 to 1600
Rear 1540 to 1640
Left Hand 1580 to 1680
Reelmaster 2000–D Page 4 – 35 Hydraulic System