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Reelmaster 3550−D Hydraulic SystemPage 4 − 39
Rear Wheel Motor Test:
Hydraulic fluid flows through both front wheel motors (in
parallel) before passing through the rear wheel motor (in
series). To accurately test the rear wheel motor, the front
wheel motors must be allowed to rotate.
1. Disconnect hose from the upper hydraulic fitting of
the rear wheel motor (Fig. 29).
Figure 29
1. Rear wheel motor 2. Upper fitting
FRONT
RIGHT
1
2
2. Install flow tester between the disconnected hydraul-
ic hose and the rear wheel motor. Make sure the tester
flow control valve is fully open.
WARNING
Before jacking up the machine, review and follow
Jacking Instructions in Chapter 1 − Safety.
3. Raise off the floor and support both front wheels.
4. Chock rear wheel to prevent wheel rotation.
5. Start engine. Move throttle to full speed.
CAUTION
Use extreme caution when performing wheel mo-
tor tests. The wheel motors will be trying to move
the machine forward.
6. Sit in the operators seat, release the parking brake,
and set the Mow/Transport slide to the transport posi-
tion.
7. Slowly depress forward traction pedal until 1000 to
1500 PSI (68.9 to 103.4 Bar) is displayed on the pres-
sure gauge.
Flow meter should read less than 1.5 GPM (5.7
LPM).
8. Release traction pedal, shut engine off, and record
test results.
9. Rotate rear wheel 120 degrees and retest. Repeat
this procedure until wheel motor has been tested in
three (3) different positions.
10.If specifications are not met, repair or replace worn
wheel motor.
Hydraulic
System