Procedure for Wheel Motor Efficiency Test:
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.
2
2.
lowered and off. Make sure engine is off and the parking
brake is engaged.
Parkmachineonalevelsurfacewiththecuttingunits
1
3.
Read Precautions for Hydraulic Testing.
4.
tral position (see Adjust Traction Drive for Neutral in the
Adjustments Section).
Make sure that traction pedal is adjusted to the neu-
Figure 22
1.
Lower hydraulic fitting
2.
Piston pump
5.
and an immovable object to prevent the machine from
moving during testing.
Attachaheavychaintotherearofthemachineframe
CAUTION
Use extreme caution when performing test. The
front tire on the ground will be trying to move the
machine forward.
WARNING
The rear wheel will be off the ground during front
wheel motor testing. Make sure machine is sup-
ported so it will not move and accidentally fall to
prevent injuring anyone under machine.
12.Slowly
push traction pedal in forward direction until
1000
PSI is displayed on the pressure gauge.
13.Motor
internal leakage will be shown on flow meter
in GPM. Flow should be less than 1.5 GPM for the
tested wheel motor.
6.
through the traction circuit.
Block up the rear wheel off the ground to allow flow
14.If
needs to be repaired or replaced as necessary.
specifications are not met, the tested wheel motor
7.
the wheel. Make sure parking brake is on.
Chock front wheel being tested to prevent rotation of
15.If
plete steps 5 to 14 for the remaining motor.
remaining front wheel motor requires testing, com-
8.
Disconnect hydraulic lines from front wheel motor
that is not being tested. Cap disconnected hydraulic
lines and plug ports in wheel motor to prevent contami-
nation.
16.If
rear wheel motor requires testing:
A. Both front wheel motors should have hydraulic
lines connected. Block up both front wheels off the
ground. Release parking brake so front wheels can
turn.
9.
the bottom of the hydrostat (Fig. 22).
Disconnect hose from the lower hydraulic fitting on
NOTE: An alternate testing location would be at the hy-
draulic hose connection to the hydraulic tube under the
left floor plate.
B. Attach a heavy chain to the rear of the machine
frame and an immovable object to prevent the ma-
chine from moving during testing.
10.Install
flow tester in series with the pump and the dis-
connected hose. Make sure the tester flow control valve
is fully open.
C. Position rear wheel on the ground and chock rear
wheel to prevent it from turning.
11.
50
Start engine and move throttle to full speed (3050 +
RPM).
D. Complete steps 9 to 13.
E. Ifspecificationsarenotmet,checkthereliefvalve
in the rear wheel motor for damage. If relief valve is
not damaged, wheel motor needs to be repaired or
replaced.
17.Disconnect
tester from hydraulic fitting and hose.
Reconnect hose to pump connection.
Groundsmaster 3500--D
Page 4 -- 39
Hydraulic System (Rev. D)
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro Groundsmaster 3500 D |
| Download File |
|
| Document Type | Catalog |
| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
Monday - Friday 7:30 a.m. to 9:00 p.m. (CDT) - Saturday 8:00 a.m. to 8:00 p.m. (CDT) - Sunday 10:00 a.m. to 8:00 p.m. (CDT)
Canada 1-888-225-4886 USA 1-888-384-9939, Lawn Mower |
| Document File Type | |
| Publisher | toro.com |
| Wikipedia's Page | Toro Company |
| Copyright | Attribution Non-commercial |
(0 votes, average: 0 out of 5)