TROUBLESHOOTING /SYSTEM PERFORMANCE Troubleshooting
A-5. Poor traction
（１）Internal leakge and sticky movement of HST motor system pressure control section
If no abnormalities are found in all the preceding checks and still the traction of the machine is poor, the incli-nation of the motor's swash plate is not switched to the large capacity position (large-torque, low-speed position) from the small capacity position (small-torque, high-speed position).
Faulty HST motor
Troubleshooting
A-6.Machine travels when engine is running at low idle speed
（１）Engine low idle speed is too high. Measure the low idle speed of the engine. Measure the engine low-idling speed in accordance with the description in the section of measurements of engine performance, Engine speed. Refer Performance standard list for standard value.
Above standard value
Standard value
1. Adjustment of the accelerator linkage is faulty, so its lever does not come in contact with the minimum speed stopper even when the accelerator pedal is released. 2. Foreign matter jammed in the accelerator pedal prevents it from returning fully. 3. The accelerator linkage is rusted and/or sticking.
Poor air bleeding of HST system or damage to AU control section
/KPKOWO 5RGGF 5VQRRGT
５ ‑208
