Toro Greensmaster 3150 Service Manual page 61

Procedure for Reel Motor Case Drain Flow Check:
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 the parking
brake is engaged.
CAUTION
Before continuing further, read and become fa-
miliar with Precautions for Hydraulic Testing.
3. For the suspected bad reel motor, disconnect return
hose from 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. If a back lap kit is installed, 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 at the bulkhead fitting.
A. Plug the bulkhead port.
B. Put case drain hose into measuring container
(tool TOR4077: see Special Tools) to collect and
measure case drain leakage.
7. One person should sit on the seat and operate the
machine while another person reads the tester and
measures case drain leakage. Make sure functional
control lever is in NEUTRAL. Start engine and move the
throttle to full speed (2850 + 50 RPM).
CAUTION
Keep away from reels during test to prevent per-
sonal injury from the rotating reel blades.
8. Engage reels by positioning the functional control
lever to MOW position. While watching pressure
gauges, slowly close flow control valve on the tester until
a pressure of 1000 PSI (69 bar) is obtained.
Greensmaster 3150
9. Use measuring container (Tool TOR4077: see Spe-
cial Tools) to collect hydraulic fluid for 15 seconds.
10. Disengage cutting units by positioning functional
control lever to NEUTRAL position. Open control valve
on tester and stop the engine.
11. Measure the amount of oil collected in the container.
Divide the number of ounces collected by 32 to get gal-
lons per minute (divide the number of milliliters collected
by 250 to get liters per minute) (use chart in Fig.12). Re-
cord test results.
12. If flow was greater than 0.25 GPM (1.0 LPM), repair
or replace the reel motor as necessary.
13. Disconnect tester from motor and return hose. Re-
connect hose to the pump.
14. Remove plug from bulkhead fitting. Reconnect case
drain hose to the bulkhead fitting. Test other reel motors
as needed.
Page 4 – 37
Figure 12
Hydraulic System