Rear roller question

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the2ems
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Rear roller question

Quick newbie question about my 1999 model year Suffolk Punch 17S please. Should the rear roller free wheel with engine stopped and all levers released? I’m thinking it should, how else do you move it around? It will go maybe half a revolution before sticking. Frontwards or backwards. Thanks

hortimech
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Yes it should, check the

Yes it should, check the belts.

the2ems
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Thanks, I thought it should.

Thanks, I thought it should. What should I look for with the belts? I did have a quick look earlier, and they seemed pretty slack. 

1999 model year Suffolk Punch 17S

Chris G
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Hello, Per H they should roll

Hello, Per H they should roll freely back and forth have had this happen on 2 I have gone over. I think the salient things to check are on the 2nd page of this marathon post of mine...

https://www.oldlawnmowerclub.co.uk/forum/history-and-technical/technical/qualcast-35s-my-first-cylinder?page=1

Lets us know how you get on

 

the2ems
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Thanks very much for that.

Thanks very much for that. Gives me a few pointers to start me in the right direction, I hope. Incidentally, there was mention in that post of an operation manual. I’ve not been able to find anything useful on tinternet. If someone has a copy, I would be most grateful. Thanks

1999 model year Suffolk Punch 17S

Chris G
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Hello, I have sent you a PM,

Hello, I have sent you a PM, I have the manuals kindly supplied by Wristpin originally.

 

wristpin
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Take the roller drive belt

Take the roller drive belt off and do the roll test. If it still jams the problem lies between the drive pinion and the ring gear within the roller; either one or both or the bearings that support them . 

A few images of the dismantled assemblies will help. There never was a workshop manual as such but illustrated parts lists are available and do help.

 

the2ems
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Thanks so much to all for the

Thanks so much to all for the quick responses and suggestions.

I think this may well be a steep learning curve :(

1999 model year Suffolk Punch 17S

the2ems
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So, I’ve taken the side cover

So, I’ve taken the side cover off and tried the roll test, while watching the belt. Probably got a full revolution before sticking. And the belt was still slack. I could hear something rattling around inside. So it’s gone back in the shed for the time being. I don’t really have time to start stripping down at the moment. Maybe over winter. I’ll be back :)

1999 model year Suffolk Punch 17S

wristpin
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You really do need the belt

You really do need the belt completely removed from the back pulley to do a proper check.

The noise that you can hear may only be a ball of hard mud rolling round inside the roller.

 

the2ems
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Ok. I’ll find time in the

Ok. I’ll find time in the next few days to give that a try. Thanks. 

1999 model year Suffolk Punch 17S

wristpin
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If it still locks up with no

If it still locks up with no belt the chances are that either the pinion’s teeth are chewed up or the bushes that it runs in are worn and allowing it to “wander”.  Sometimes the ring gear comes loose within the roller. 

If, when the time comes, you have to source a new pinion , be aware that over various Suffolk / Qualcast models there are several similar looking pinions with small differences in materials and tooth counts.

the2ems
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Thanks for the heads up. Is

Thanks for the heads up. Is there a “best place” to get spares?

1999 model year Suffolk Punch 17S

wristpin
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Possibly  the “ best” places

Possibly  the “ best” places are trade only but JAPG , the Gateshead Mower Centre and the Hailsham Mower Centre are good starting points. Jon Cruse at Hailsham carries a lot of parts for older machines.

Check it out for yourself but I think that your pinion will be F016L11993 and it’s bearing / bush F016L08477. The roller bushes should be F016L07034