|
West Central Iowa | The perma clutch is designed so that when disks wear to a certain point, operating levers ( fingers) bottom on clutch cover causing severe slippage. Early 30 series did not have enough travel in fingers before the levers bottomed on the cover, causing clutch slippage before disks were worn very much at all. Deere has a service bulletin on this from back in the mid 70's. To check for this, when clutch adjusting tool is set up on clutch, with adjusting nuts backed way off you need at least .200 lever travel before they bottom out on the cover. I always use a 1/4" bolt between tip of lever and adjusting tool ring to check for clearance. If not enough clearance, grind top of cover where finger is contacting it with a die grinder until you have enough off so bolt will go in. We check this on every clutch we do as it only takes a minute to do.
Also, if this is an early tractor with manual by-pass valve, and the valve is left open, it will rob the lube oil circuit and shorten clutch life.
I hope this makes sense, if not let me know. | |
|
Question on 4430 clutch and pressure
