Filter
Top Products
Greensmaster 3150 Hydraulic SystemPage 4 -- 45
Procedure for Reel Motor Case Drain Flow
Test:
1. Make sure hydraulic oil is at normal operating tem-
perature by operating the machine for approximately ten
(10) minutes. Make sure the hydraulic reservoir is full.
2. Park machine on a levelsurface withthe cutting units
lowered. Make sure engine is off.
CAUTION
Before continuing further, read and become fa -
miliar with Precautions for Hydraulic Testing.
3. For the suspected bad cutting reel motor, disconnect
return hose from the motor. The return hose connects to
the fitting at the rear of the motor.
4. Install tester in series with the reel motor and the dis-
connected return hose. Make sure the flow control
valve on the tester is fully open.
5. Make sure backlap knob on the hydraulic manifold is
in the mow position and reel speed is set to maximum.
6. Disconnect hose from case drain of the motor to be
tested a t the bulkhead fitting.
A. Plug the bulkhead port with a steel plug.
B. Leave the case drain hose from the m otor open
and place open end of disconnected hose into a
drain pan.
7. One person should sit on the seat and operate the
machinewhileasecondpersonreadsthetesterand
measures case drain leakage.
8. Make sure functional control lever is in NEUTRAL.
Startengineandmovethethrottletohighidlespeed
(2850 +
50 RPM).
CAUTION
Keep away from reels during test to prevent per -
sonal injury from the rotating reel blades.
9. Move the functional control lever to the MOW posi-
tion and engage the cutting reels with the joystick con-
trol. While watching pressure gauge, slowly close flow
control valve on the tester until a pressure of 1000 PSI
(69 bar) is obtained.
10.After achieving 1000PSI(69bar), place discon-
nected motor case drain hose into a container gra-
duated in ounces or milliliters (Tool TOR4077: see
Special Tools) and collect hydraulic fluidf or 15 seconds
(Fig. 29). After 15 seconds, remove hose end from con-
tainer.
11.Disengage cutting units. Open control valve on test-
er and stop the engine.
12.Measure the amount of oil collected in the container.
Record test results.
13.If casedrain flowwas greater than 16.0 ounces (473
milliliters) (0.5 GPM/1.9 LPM) in 15 seconds, repair or
replace the reel motor as necessary.
14.When testing of the reel motor is completed, discon-
nect tester from reel motor and return hose. Reconnect
return hose to the motor.
15.Remove plug from bulkhead fitting. Reconnect case
drain hose to the bulkhead fitting.
16.Test o ther cutting reel motors as needed.
Figure 29
Figure 30
Hydraulic
System