TESTING
9-12
TX 413 Service Manual
Rev. 000
4. Start the engine and bring the engine speed up to
full throttle.
5. Move the traction control in the right direction, in
full forward motion (Fig. 558). Operate without
any load for approximately 2 minutes, this allows
the system oil temperature to rise.
Figure 557 DSC-2943
Note: Before performing this test, make sure the
bypass valve, located on the front side of
the lower pump, is closed (Fig. 557, top
view).
Figure 558 DSC-0874
Note: Raising the system oil temperature will
make a difference in the readings you
receive. To complete the test accurately,
the oil temperature must be near system
operating temperatures. Suggested
temperature range 160° - 210° F (71.1° -
98.9° C).
6. Turn the restriction valve until you read 300 psi
(21 bar) (Fig. 559).
Figure 559 DSC-2937
7. At 300 psi (21 bar), note the gpm reading.
Note: The gpm reading can vary between left and
right hydrostatic pumps.
A
B
A. PSI reading B. GPM reading
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