1070 power shift

[dtubbs5]

What needs to be removed to take the c3 spool out for cleaning? I've cleaned the area around the c1 & c3 spools & taken off the c1 cap in hopes of getting a wrench on the c3 cap as the two are very close together but haven't been able to get a wrench on it. Don't want to take something apart I don't have to. Do the cover & valve body need to be removed. Would appreciate any help with this.

Thanks, Dennis

 

[mEl]

(quoted from post at 14:15:43 06/18/14) What needs to be removed to take the c3 spool out for cleaning? I've cleaned the area around the c1 & c3 spools & taken off the c1 cap in hopes of getting a wrench on the c3 cap as the two are very close together but haven't been able to get a wrench on it. Don't want to take something apart I don't have to. Do the cover & valve body need to be removed. Would appreciate any help with this.

Thanks, Dennis

Dennis,

I sacrificed a socket by thinning it down so it would fit between the caps. By using appropriate extensions you can get working clearance.

mEl

 

[dtubbs5]

mEl

I will try that. What's one socket. There's even
less clearance on the other side which is what I
think you meant about gaining clearance by
grinding down the socket (or did you take a piece of the socket out) to fit between the c3 cap
& a diamond shaped plate held on by two allen head
bolts. After taking off the c1 cap which a socket
did go on I tried to get the spool out but it
wouldn't come out, might as well clean both of
them. If they are stuck too bad, then what? I do
appreciate the help I'm getting from you & others
on this sits with this tractor the last several
weeks as I've had to fix several other things as
well.

Thanks, Dennis

 

[mEl]

(reply to post at 04:28:29 06/19/14)

The spool is threaded so a machine screw can be used to pull it out, it can then be used to work the spool back and forth. DO NOT use abrasives on the spool or the bore, working the spool back and forth will usually dislodge any particles, useing sand papaer on the spool rounds the sharp edges that are intended to keep debris from lodging.


mEl

 

[dtubbs5]

mEl

Do you mean turn a machine screw onto the end of
the spool just enough to grab it & then start
moving it back & forth. If it's threaded how does
that work? Or do I turn it counter clockwise to
get it started & then back & forth to free it.
Guess I don't understand completely. Thanks for
your patience with this. What works best to clean the spool.

Dennis

 

[mEl]

(reply to post at 06:25:38 06/19/14)

D,

The pilot spools have a threaded hole in them for a machine screw, guessing 12/24, maybe 10/24 that you use to remove the spool if its stuck. simply moving the spool back and forth repeatedly usually removes the debris.

A good cleaning may be in order but requires a valve removal. The real secret is keeping clean oil and filters, I have seen many instances where people have thrown the cold oil relief cartridge away with the old filter and the oil is allowed to completely bypass the element through its open end.

If the transmission is serviced and filters are kept changed, the debris should never get to the valve. In years past we took the transmissions for granted, that can no longer be done.

 

[dtubbs5]

mEl

After thinking about it for a while I realized
there must be a threaded hole for the screw. I
just changed the filters & they weren't very dirty
& will change them every year. The fluid has
around 500 hrs. on it. Maybe that should be
changed as well. I'm very careful to make sure
everything is put back together as it should be
(ie. relief valves). Hope just moving the spools
back & forth frees them up. Thanks so much for the
help because I sure needed it. Will let you know
what happens.

Thanks Again, Dennis

Thanks