Toro Greensmaster TriFlex 3300 Service Manual page 105

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 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
Prevent personal injury and/or damage to equip-
ment. Read all WARNINGS, CAUTIONS and Pre-
cautions for Hydraulic Testing at the beginning
of this section.
3. For the suspected faulty reel motor, thoroughly clean
junction of hydraulic return hose and rear fitting. Discon-
nect hose from motor fitting.
4. Install hydraulic tester (pressure and flow) in series
with the reel motor fitting and the disconnected hose.
Make sure that tester flow arrow points from the motor
and toward the disconnected hose. Also, make sure
flow control valve on the tester is fully open.
5. Make sure backlap lever on the mow control man-
ifold is in the mow position and reel speed knob (FC) is
set to highest speed setting (fully open).
6. Disconnect hose from case drain of the motor to be
tested at the bulkhead fitting.
A. Cap the bulkhead port.
B. Leave the case drain hose from the motor open
and place open end of disconnected hose into a
drain pan.
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.
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 le-
ver to MOW position. While watching pressure gauge,
slowly close flow control valve on the tester until a pres-
sure of 1000 PSI (69 bar) is obtained.
Greensmaster 3300/3400
9. After achieving 1000 PSI (69 bar), place discon-
nected reel motor case drain hose into a container gra-
duated in ounces or milliliters (Tool TOR4077: see
Special Tools) and collect hydraulic fluid for 15 seconds
(Fig. 30). After 15 seconds, remove hose end from con-
tainer.
10.Disengage cutting units, open control valve on tester
and stop the engine.
11. Measure the amount of oil collected in the container.
Record test results.
12.If case drain flow was greater than 16 ounces (473
ml) in 15 seconds (0.5 GPM/1.9 LPM), repair or replace
the reel motor as necessary.
13.After case drain flow has been determined, discon-
nect tester from reel motor fitting and return hose. Con-
nect hose to the motor fitting.
14.Remove plug from bulkhead fitting. Connect case
drain hose to the bulkhead fitting.
15.Test reel motor case drain flow for other reel motors
as needed.
Page 5 - - 53
Figure 30
Figure 31
Hydraulic System