TYM T303HST, Workshop Manual

Page: 74 / 249

SECTION 4. DIAGNOSTICS
Test conditions:
- Operator in seat
- Key switch in RUN position
Test/Check point Normal If Not normal
1. Control pedals Pedal should move freely Check linkage from pedals to pump
Test conditions:
- Start engine and run at slow idle
Test/Check point Normal If Not normal
2. Directional pedals are
in neutral position
Machine should not creep
forward or backward Adjust centering of pump control
pedals
3.Move forwards or
reverse pedal slowly
from neutral to
maximum travel speed
Machine should accelerate
smoothly forward or
backwards. Check fluid reservoir for proper
fluid level.
Check hydraulic tubing,and
connections for leaks.
maximum travel speed
position
connections for leaks.
Perform system flow and pressure
checks to verify proper operation of
charge pump and hydrostatic pump
4. Control pedal in full
forward position
Machine should move
forward Check pedals and forward/reverse
linkage for damage.
Check forward drive pressure relief
valve
5. Control pedal in full
reverse position
Machine should move
backward
Check pedals and forward/reverse
linkage for damage.
Check reverse drive pressure relief
valve.
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