Toro Reelmaster 3100-D Service Manual page 123

Reel Motor Cross−over Relief Pressures Test (Using Pressure
Gauge) (continued)
Reelmaster ® 3100-D/3105-D
20252SL Rev A
Note: The reel motors are connected in series. To isolate a faulty motor, all
motors in the circuit may have to be tested by starting with the first motor
in the series.
g345042
1. Inlet hose
2. Case drain hose
4. On the reel motor to be tested, thoroughly clean motor inlet and outlet
fittings and hydraulic hoses
from fittings. Install a tee fitting with a 350 bar (5000 PSI) pressure gauge
between the fitting and hose for both the motor inlet and outlet.
5. Make sure that the backlap knob on the hydraulic manifold is in the MOW
position.
6. Insert a block of wood between cutting unit reel blades and carrier frame of
cutting unit being tested to prevent reel from turning.
7. Start the engine and run at low idle speed. Check for any hydraulic leakage
from test connections and correct before proceeding with test.
8. Make sure that the hydraulic fluid is at normal operating temperature by
operating the machine under load for approximately ten (10) minutes. DO
NOT engage cutting units.
Adjacent cutting unit reels will rotate when performing the
cross−over relief pressure test. Keep away from cutting units during
test to prevent personal injury from rotating reel blades. Do not
stand in front of the machine.
9. One person should sit on the seat and operate the machine while a second
person closely monitors both pressure gauges connected to the reel motor.
Make sure that engine speed is at low idle position (1400 ±50 RPM) and
engage the cutting units.
10. There should be a slight hesitation in pressure increase on the inlet side of
motor as the cross−over relief valve opens. Record the pressure reading on
both the inlet and outlet side pressure gauges.
11. Disengage the cutting units and stop the engine.
Figure 51
3. Outlet hose
(Figure 51). Loosen and remove both hoses
CAUTION
Page 5–47 Hydraulic System: Testing