John Deere 6320 PTO engagement

[smcapstick]

Can the PTO on a JD 6320 be 'feathered' in on startup, rather than relying on the brief soft start? A chap I know keeps breaking shearbolts when he sets a machine off (I'd rather he didn't resort to a harder bolt, too).

TIA
smcapstick

 

[michael N123]

Can the soft start not be adjusted by a clever man and a laptop

 

[dieselboost]

We have a 6230 std and I find that if you slowly pull the PTO button upwards and inot position it engages a lot more smoothly and slowly than just popping it up quickly. Maybe its just a trick of the mind but it does seem better.

 

[Tractortech]

Now Then..
There is no calibration on a 20 series PTO. Modulation is achieved with a valve on the back, behind the solenoid valve. I had one once with a broken spring in it causing similar.
The switch has a microswitch in it, I can't see moving it slowly making any difference, but like you say, it could be a trick of the mind, eh

 

[brynseiri]

Can't he start the machine at lower revs?

 

[smcapstick]

The chap says he's on tickover when he engages the PTO but it's still too sharp.

I asked him if he'd tried turning the PTO button slowly... be he says it won't.

 

[cows sh#t me to tears]

What's he trying to drive?

 

[smcapstick]

What's he trying to drive?

A big flail mower.

I don't want him to weld the shaft up, then come crying to me after he tries to shred a manhole cover

 

[jpd]

How could turning the switch slowly work?
An electrical switch is either on or off

 

[smcapstick]

How could turning the switch slowly work?
An electrical switch is either on or off

Some have a potentiometer on.

Bless you for caring, though

 

[NZ Tech]

If he got keen.. and had a few ideas. He could fit an extension hose off the pto modulation valve pressure port and that would probably make the start a little slower. As to how long the hose would need to be that would be a shed experiment.

 

[cows sh#t me to tears]

For a start i would be replacing the shear bolt pto shaft with a slip clutch. Secondly i'm unsure as to why it won't start at idle

 

[Poorbuthappy]

Try putting pto in gear whilst tractor is moving forward at tickover - takes the power out of it. I had a topper i had to do this with.

 

[ollandroverman]

Sounds like there is a fault on the tractors pto valve and it is letting pressure to the clutch pack too quickly.
There isn't that much weight to spin up on a flail mower, so it shouldn't be popping sheer bolts.

 

[JET]

Are the 6430s prone to have a fast start on the PTO, I have a neighbor with a newholland and has gone through 2 spline shafts on a baler because of it, Shouldn't all tractors have a soft start?

 

[Poorbuthappy]

Are the 6430s prone to have a fast start on the PTO, I have a neighbor with a newholland and has gone through 2 spline shafts on a baler because of it, Shouldn't all tractors have a soft start?

Suspect some are worse than others. My 6320 Is certainly better than my 6210 was

 

[mayos]

If he got keen.. and had a few ideas. He could fit an extension hose off the pto modulation valve pressure port and that would probably make the start a little slower. As to how long the hose would need to be that would be a shed experiment.

Surely a small accumulator in that line would be the best bet.

 

[jpd]

Some have a potentiometer on.

Didn't know some had potentiometers
What tractors?

 

[smcapstick]

Didn't know some had potentiometers
What tractors?

I've no idea. A local ag engineer told me when I called him.

 

[7610 super q]

Modern tractors.
One used to be able to feather in the PTO using a device called a lever, didn't one...