Bush Hog TH420 Automobile User Manual


 
Throttle System
Throttle Freeplay
If the throttle pedal has excessive play due to cable stretch or cable
misadjustment, it will cause a delay in throttle response, especially at
low engine speed. The throttle may also not open fully. If the throttle
pedal has no freeplay, the throttle may be hard to control, and idle
may be erratic.
Throttle Freeplay Inspection
1. Apply parking brake.
2. Shift the gear lever into neutral.
3. Start the engine and warm it up thoroughly.
4. Measure the distance the throttle pedal moves before the engine
begins to pick up speed. Freeplay should be from 1/16” to 1/8”.
Note: The throttle system is not intended to be adjusted by the owner.
If problems occur, take the vehicle to your dealer for adjustments.
WARNING
FAILURE TO CHECK OR MAINTAIN PROPER OPERA-
TION OF THE THROTTLE SYSTEM CAN RESULT IN AN
ACCIDENT AND LEAD TO SERIOUS INJURY OR DEATH
IF THE THROTTLE STICKS DURING OPERATION.
NEVER START OR OPERATE THIS VEHICLE IF IT HAS A
STICKING OR IMPROPERLY OPERATING THROTTLE
PEDAL.
IMMEDIATELY CONTACT YOUR DEALER FOR SERVICE
IF THROTTLE PROBLEMS ARISE.
ALWAYS CHECK THE PEDAL FOR FREE MOVEMENT
AND RETURN BEFORE STARTING THE ENGINE AND
OCCASIONALLY DURING OPERATION.
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