CLUTCH ROLLERS
Driven clutch rollers or square slide blocks should be inspected each time the clutch cover is removed. How dirty the conditions are that you ran in will dictate this as you will be blowing the clutches out on a regular basis. For rollers, if flat spots are detected, replace them as a pair. Keep a close eye on these and replace as soon as you see a flat spot starting because when they flat spot, es-sentially the roller is skidding on the tower of the clutch. If this skidding action goes on for too long, the aluminum tower will wear and if worn too much, it will require the clutch to be replaced.
For driven clutches with square slide blocks, inspect the slide block and alu-minum tower that the slide block rides on for wear. If wear is detected, the slide block can be removed and rotated 90 degrees one time to extend the life of the slide block. If you are looking for a longer service life option, SLP has heavy-duty rollers to replace either the slide blocks or the stock outer rollers. The rollers that replace the slide blocks are larger in diameter than the ones that replace the outer rollers. These rollers are not very susceptible to flat spotting and we see about four times longer service life out of them. An added benefit to replacing the square slide blocks with SLP heavy-duty rollers is the clutches tend to be more responsive as friction is reduced. Failure to replace a flat spotted roller will eventually result in clutch damage that will require full clutch replacement.
Also inspect your belt each time you blow out your clutches. Look for obvious heat signs such as center delamination and inner belt micro cracking. If detected, replace your belt. Also, if you see a cord hanging from the side of the belt, it is time to change it. It is better to replace it now than when you are on the trail in a bad situation.
Another common belt problem is a “burnt” spot on the belt. This is caused by running in high range at low speeds with a high load, like crawling through a section of rocks. The clutch essentially slips on the belt. You would typically smell a burned belt when this happens and may even see blue smoke exit the clutch cover outlet. A quick inspection of the belt would show this burned spot. If the belt has a burned spot, it must be replaced.
LOOKING FOR CRACKS
