1968 John Deere 820 PTO problem

[Cannedman]

My uncle gave me his John Deere tractor that had not been started in 4 hears. I drained all of the fluids and changed filters. After refilling all of the fluids and installing new battery the tractor started without a hitch. I have run the tractor for about 3 hours and no problems other than a few small leaks.

Everythings works on the tractor other than the PTO. The pto shaft rotates smoothly by hand. When you try to engage the pto the lever will not move forward. I have tried to engage the lever with the tractor not running and still no go.

I have a manual ordered for the tractor and it should be here in the next 4 or 5 days. In the mean time does anyone have any suggestions as to what the problem might be?

TIA and have a great day and a Merry Christmas.

Leonard
 

[buickanddeere]

The pto lever on the left side of the trans case is seized solid and won't move?
REAR POWER SHAFT SHIFTER LINKAGE
Cart KEY PART NO. PART NAME QTY TRACTOR SERIAL NO. REMARKS
1 AT20093 LEVER 1 - 024012
AT29827 LEVER 1 024013 -
2 T27544 GROOVE PIN 1
3 R28776 O-RING 1
4 AT20025 ARM 1
5 R48289 SHAFT 1 077798 - (SUB FOR T21993, A369R OR T10510)
6 T25614 SET SCREW 1
7 T21992 SHIFTER 1
8 A369R SNAP RING 2 - 077797
9 R53802 CAP SCREW 1
Cart KEY PART NO. PART NAME QTY TRACTOR SERIAL NO. REMARKS
10 R27003 WASHER 1
11 T27716 COMPRESSION SPRING 1 (SUB FOR T27739)
12 R26552 BALL 1 7.93MM (5/16")
13 T26337 SHIFT COLLAR 1 (COLLAR SHIFT TRANSMISSION)
T25541 SHIFT COLLAR 1 (SLIDING GEAR TRANSMISSION)
14 T10510 WASHER 1 - 077797
 

[Tx Jim]

Probably only 1 or 2 parts of the long list of part numbers that b&d listed is at fault.

The control handle shaft(AT20093 or AT29827) could most likely be stuck in trans case where it goes into case

Shifter fork(T21992) stuck on shift rail or shifting collar buggered(T26337 or T25541)

Or lastly the the pto(R47249) could be at fault not let shift collar slide onto it.
 

[Cannedman]

Thanks to both of you. As soon as I get my manual to see the parts you all have noted I will try and see if I can find the problem and how to fix.

Have a great day.
 

[Tx Jim]

While you wait for TM why not spray a good penetrating oil between the pto shift handle and trans case? I'd also recommend tapping on end of the shaft that pto handle is made on to loosen any rust.
 

[buickanddeere]

Diff lock handle was like that on my 1640. My
Uncle the previous owner preferred to tromp the
brakes like he did on his earlier 530. Rather than
use the diff lock.
Took two months to completely free up the diff
lever.
 

[Cannedman]

Thanks that did it. The pto lever will now move. When I engage the pto, the shaft turns but its real slow. How fast should it rotate?

Thanks and have a great day.
 

[Tx Jim]

I'm glad you got pto shifter to engage. The pto shaft should turn 540 rpm's at pto engine speed which should be marked on speed/hr meter.
 

[Cannedman]

My manual came in today and I tried the clutch adjustments. It did not help any. I guess the next step is to break the tractor down and check the pto clutch. Does anyone have any other suggestions other than the break down?
 

[Tx Jim]

[Cannedman]

It won't even spin now. So I don't know what the problem is, talking to John Deere dealer they say it is the clutch and wants $3000.00 to fix it. I can't go that route.
 

[Tx Jim]

Can you turn pto shaft with pto lever engaged with engine not running????????
 

[Cannedman]

Yes I can.
 

[Tx Jim]

[Cannedman]

Thanks. That was what I was afraid of. I have never split a tractor apart and John Deere wants $3000.00 to do it. Is this something a novice can do with the manuals?

Thanks for all of help I really appreciate it.

Have a great day.