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Sunstar,front PTO stalls engine ** revisited

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My Sunstar is having the same symptoms, after a short period of time the engine dies and need at least

five minutes of cool down time before it can be restarted. It appears I have a bearing problem also.

Tractor is 1692135(CH20), mower pto clutch was 1708527 S/S by 1686737SM . Is it much of a

project to replace bearing and has any one come up with a bearing number?


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Ronald Hribar

I am very surprised that the Master does not have that info.

Not surprised that we the students do not have answers.

I would get replacement clutch. Then tear old one apart

and take the bearing to a bearing store.

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If you have the later Warner clutch, the front bearing (in the pulley assy) is NSK 6006DU. The rear bearing is NSK 6206DU. The Warner clutch is a 5218-39.The later electric clutch looks like this:





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Does your clutch use a snip ring to hold the bearing in? I have an extra clutch in the shop and I will look at it tomorrow. My sunstar almost stalls when I engage the clutch and I am starting to worry about the bearing now.

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I don't know for sure. My Sunstar arrived with the new style clutch that needed replacing. The spacer (item C) may or may not be the same. You can use a bolt as the clutch stop (item B). The bushing (item E) is unique. It may come with the newer clutch. Proper torque value for the bolt (item G)is critical.

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