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post #1 of 9 Old 06-29-2015, 07:49 AM Thread Starter
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Pro-16 PTO Problem

I have a Pro-16 tractor and when I mow the grass with a 40 Kidney mower the PTO slows down or stops completely. If I stop the tractor the PTO sometimes comes back up to speed, but not always. I removed the mower and put on a cultivator to eliminate the tractor or the mower as the problem. The cultivator also seemed to slow under little pressure. Need some help...Thanks
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post #2 of 9 Old 06-29-2015, 08:38 AM
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Re: Pro-16 PTO Problem

Look at pages 4-13 and 4-14 here http://gravelymanuals.com/pdf/Prof_2...v_Man_0800.pdf

You need to do the slip clutch adjustment. Careful, set the tractor on its tail when you remove the quick hitch, if it tips forward oil will spill out of the chassis. There should be five quarts of oil in the chassis.

Roger,

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post #3 of 9 Old 06-29-2015, 08:46 AM Thread Starter
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Re: Pro-16 PTO Problem

Thanks for the help...Roger
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post #4 of 9 Old 06-29-2015, 09:36 AM Thread Starter
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Re: Pro-16 PTO Problem

Roger,

Will I only be dealing with the Dog Plate. Tighten the bolts to correct foot pounds per square inch. I don't see anything called a "slip clutch" What am I missing?
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post #5 of 9 Old 06-29-2015, 08:06 PM
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Re: Pro-16 PTO Problem

You have to remove the quick hitch from the tractor. On the back there is a slip clutch for attachments only.

Like this on these decks on the back


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Theres a spring clearance setting of .010 or something. Or my method for the older ones is go a 1/2 turn tighter at a time and repeat until satisfactory. Kinda PITA with the new style quick hitch though takeing it off each time.

Steven Turcheck
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post #6 of 9 Old 06-29-2015, 08:57 PM
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Re: Pro-16 PTO Problem

First of all, this is a PRO so sort of a PITA to reinstall the quick hitch, as the dog floats btw. the shaft and the brake.

Being that it's a pro, what's on the back of the quick hitch is a PTO brake. The clutch pins on the output shaft with a snap ring. That's what you'll need to check.

I find it's easiest to re-install the quick hitch and dog setup with the PTO engaged. You can slip all the pieces together fairly easily this way when you're done.

Before you open up the internals, I suggest checking the hi/low planetary adjustment as sometimes a worn or out of adjustment clutch can cause the same symptoms you describe -- but usually if it's a planetary issue it will affect your ground speed as well.
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post #7 of 9 Old 06-29-2015, 10:22 PM
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Re: Pro-16 PTO Problem

http://gravelymanuals.com/pdf/Prof_2...v_Man_0800.pdf

Section 4.8 clearly states adjusting the slip clutch. But the brake is also there

Been 2 years since I was in one

Steven Turcheck
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current tractors and rigs
1944 WWII L
48 L grw's
2 49 L's ,1 Wisconsin powered L
52 US navy L, 2 53 Ls
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1950's Bready
74 cub 129& case 220
48 Willy's CJ 2A
1991 ford F150 and Bronco
2007 F250 Big White
2010 Sc2450 yanmar
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post #8 of 9 Old 06-30-2015, 12:23 AM
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Re: Pro-16 PTO Problem

Quote:
Originally Posted by mb49727 View Post
Roger,

Will I only be dealing with the Dog Plate. Tighten the bolts to correct foot pounds per square inch. I don't see anything called a "slip clutch" What am I missing?
Page 4-14, section 4.8 like Steven said.

You're lucky, yours is slipping. Most times they lockup. Few people EVER check them for proper function on the Pro tractors. Depending on the attachment being used, it can be dangerous to the tractor or to the operator. Search for "Helix maneuver".

Ron C

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post #9 of 9 Old 07-01-2015, 09:48 AM
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Re: Pro-16 PTO Problem

. Yup!


Quote:
Originally Posted by arcam8123 View Post
Page 4-14, section 4.8 like Steven said.

You're lucky, yours is slipping. Most times they lockup. Few people EVER check them for proper function on the Pro tractors. Depending on the attachment being used, it can be dangerous to the tractor or to the operator. Search for "Helix maneuver".

I'm a "Heuristic Engineer".
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