13.To
test individual front wheel motors:
CAUTION
A. Remove front wheel from wheel motor that is not
being tested. Remove wheel shield to allow access
to hydraulic tubes and fittings on wheel motor. Re-
move fasteners that secure front hydraulic tube r--
clamps to frame.
Before opening hydraulic system, operate all hy-
draulic controls to relieve system pressure and
avoid injury from pressurized hydraulic oil. See
Relieving Hydraulic System Pressure in the Gen-
eral Information section of this chapter.
B. On the front wheel motor that is not being tested,
thoroughlycleanjunctionofbothhydraulictubesand
wheel motor fittings. Disconnect both hydraulic lines
from wheel motor that is not being tested. Cap dis-
connected hydraulic lines and wheel motor fittings.
5.
Attachaheavychaintotherearofthemachineframe
and an immovable object to prevent the machine from
moving during testing.
C. Use the procedure described in steps 8 to 10
above to identify individual front wheel motor leak-
age. Individual motor internal leakage will be shown
on flow meter in GPM (LPM). Flow should be less
than 1.5 GPM (5.7 LPM) for the tested wheel motor.
6.
sure parking brake is applied.
Chock front wheels to prevent wheel rotation. Make
NOTE: IfmachineisequippedwithoptionalCrossTrax-
TM
AWD, jack up and support the rear wheels off the
ground to allow flow through the rear wheel motors.
D. If other front wheel motor requires testing, com-
plete steps A, B and C for remaining wheel motor.
7.
Thoroughly clean junction of hydraulic hose and
right side elbow fitting on bottom of traction pump (Fig.
Disconnect hose from traction pump fitting.
14.After
testing is completed, stop engine and then re-
lieve hydraulic system pressure (SeeRelieving Hydrau-
lic System Pressure in the General Information section
of this chapter). Disconnect tester from hydraulic fitting
and hose. Connect hose to pump elbow fitting. Remove
caps from hydraulic tubes and reconnect tubes to wheel
motor.Securehydraulictubestomachinewithr--clamps
and removed fasteners. Install wheel shield and
wheel(s) (see Wheels in the Service and Repairs sec-
tion of Chapter 6 -- Chassis).
31).
IMPORTANT: Make sure that the oil flow indicator
arrow on the flow meter is showing that the oil will
flow from the pump, through the tester and into the
hydraulic hose.
8.
Install tester with pressure gauges and flow meter in
series with the traction pump and the disconnected
hose. Make sure the tester flow control valve is fully
open.
2WD MACHINE SHOWN
9.
Start engine and move throttle to full speed (3200
2
3
RPM).
1
4
CAUTION
5
Use extreme caution when performing test. The
front tires on the ground will be trying to move
the machine forward.
RIGHT
10.Slowly
push traction pedal in forward direction until
FRONT
1000
PSI is displayed on the tester pressure gauge.
11.
shown on flow meter in GPM (LPM). Total leakage for
Total front wheel motor internal leakage will be
Figure 31
the front wheel motors should be less than 3.0 GPM
1.
2.
3.
Traction pump
RH elbow fitting
Hyd hose (forward)
4.
5.
LH elbow fitting
Hyd hose (reverse)
(11.3
LPM).
12.Release
traction pedal, shut engine off, rotate both
front wheels and retest. Testing of wheel motor leakage
in three (3) different wheel positions will provide the
most accurate test results. If leakage specifications are
not met, individual front wheel motors need to be tested.
Reelmaster 5010 Series
Page 4 -- 35
Hydraulic System
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