TEST NO. 6: Check Reel Motor Case Drain Flow
FROM
LIFT CIRCUIT
T
CUTTING
CIRCUIT
G
TEST PORT
T
PRIORITY
OUT
IN
B
A
FROM
GEAR PUMP
(TYP) IN
B
3000
PSI
A
T
QUART
CONTAINER
B
A
TO HYDRAULIC
OIL TANK
Figure 20
Make sure hydraulic oil is at normal operating tem-
1.
perature by operating the machine for approximately 10
minutes. Make sure the hydraulic tank is full.
CAUTION
2.
Lower cutting unit to be tested. Make sure engine is OFF
and the parking brake is engaged.
Make sure machine is parked on a level surface.
Keep away from reels during test to prevent per-
sonal injury from the rotating reel blades.
8.
Engage reels by positioning reel control lever to
MOW position. While watching pressure gauges, slowly
close flow control valve until a pressure of 1200 PSI is
obtained.
3.
Read Precautions for Hydraulic Testing.
4.
hose from the motor.
For the suspected bad motor, disconnect return
9.
case drain hose into a 1 quart container graduated in
ounces (1 liter container graduated in milliliters).
Collect hydraulic fluid for 15 seconds by putting the
5.
hose. Make sure the flow control valve is fully open.
Install tester in series with the motor and return
6.
draulic T−connector.
Follow hose from reel motor case drain to the hy-
10.
NEUTRAL position. Stop the engine.
Disengage cutting units by reel control lever to the
A. Disconnect hose from T−connector.
B. Plug T−connector to prevent drainage of fluid.
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 col-
lected by 250 to get liters per minute).
C. Put case drain hose into suitable container for
collecting case drain leakage.
12.
Disconnect tester from motor and hose. Reconnect
hose to the pump.
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 reel control le-
ver in NEUTRAL. Start engine and move the throttle to
full speed (2400 RPM).
13.
drain hose to the T−connector.
Remove plug from T−connector. Reconnect case
14.
If flow was greater than 0.7 GPM (2.6 LPM), repair
or replace the reel motor as necessary.
Hydraulic System
Page 4 − 36
Reelmaster 4000−D
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro 4000 D, Toro 98958SL |
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| Document Type | Catalog |
| Language | English |
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