19
Basic Gear Drive Troubleshooting
Preparation
NOTE
Before troubleshooting any system problem, see original equipment manufacturer’s (O.E.M.) instructions.
Make your troubleshooting easier by preparing as follows:
• Work in a clean, well-lighted place.
• Keep proper tools and materials nearby.
• Keep an adequate supply of clean petroleum-based solvent.
To avoid carbon monoxide poisoning, make sure engine is outdoors in a well-ventilated area.
Some maintenance procedures can not be performed until the vehicle wheels are secured and off
the ground. Failure to do so could result in death or serious injury to yourself and/or bystanders.
DO NOT attempt any maintenance procedures with the engine running. Doing so could result in
death or serious injury to yourself and/or bystanders.
Use care when performing inspection of the drive belt assembly including all vehicle linkage. Failure
to do so could result in death or serious injury to yourself and/or bystanders.
For proper declutching to occur, it is very important that
the engine belt guide be set at a predetermined clearance
when engaged (set by the manufacturer) and away from
the belt with the belt engaged.
With clutch disengaged, it is very important that the belt
blossoms away from the engine pulley. Belt must stop
turning before transaxle shifting can occur.
1/16" to 3/16"
(1.6 mm - 4.8 mm)
THIS DIMENSION
VARIES FROM EACH
MANUFACTURER
Improper belt or belt guide clearance will not allow the belt to disengage, causing internal transmission
damage.
Hard Shifting Transaxles and Drive Belts
Often hard shifting is blamed on an internal problem in the transaxle.
To determine if the problem is transaxle or equipment related make these simple checks.
1. Turn the unit off so that all power is removed to the transaxle.
2. With the unit off, move the shift lever through the shift gate. Movement of the lever should have only slight
resistance. The shifting effort should be equal when the engine is off and when running. If the unit is difficult to
shift the problem would be internal and the transaxle would need to be removed and repaired.
3. If the unit shifts with ease, check the following areas that would be equipment related. Check to see if the belt
is releasing from the pulley on the engine and transmission / transaxle, it may require that the belt guides be
repositioned. The distance required from the pulley to the guide is typically 1/16" to 3/16" (1.6 mm - 4.8 mm),
always check the O.E.M. specs.
4. Check to see if the pulley is damaged and may not be releasing the belt.
5. Confirm the correct length and type of belt, as recommended by the manufacturer, is installed.
another free manual from www.searstractormanuals.com
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