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Overload clutch for crawler gear

Posted: Tue Oct 11, 2016 9:41 pm
by tiziano
Hello,
I don't find the pages on the "spare parts catalogue" edition 1970 cod. 907.1.70.253.4
of the overload clutch for crawler gear.
I have the following pages :
- 2 01/0
- 2 05/0
- 2 08/0
- 2 09/0
- 2 20/0
Where I can find the catalogue with those pages ?
Thank you
Ciao
Tiziano

Re: Overload clutch for crawler gear

Posted: Wed Oct 12, 2016 4:28 am
by AustHaflinger
Can someone explain what this overload clutch is please as I have not heard of it before.

I just assumed the crawler gear is just 1st in a normal 5 speed box with that gear being extra low.

Cheers

Garry

Re: Overload clutch for crawler gear

Posted: Wed Oct 12, 2016 5:47 am
by kerry460
G,,day .

me as well . never heard of it , never encountered it .
if it exists , it must take a lot to actuate it .
i never succeded . or any of my customers .

kerry

Re: Overload clutch for crawler gear

Posted: Wed Oct 12, 2016 7:40 am
by Julian B
I am not sure if these are the right date for you, but they may help? (I too do not have 2 08/0 or 2 09/0).

Re: Overload clutch for crawler gear

Posted: Wed Oct 12, 2016 7:41 am
by heinkeljb
In the early gearboxes there is a "krawler" gear which is essentially a very low 1st gear but it was thought necessary to prevent the engine torque from doing any damage to the gear train, they put in a clutch - it is mentioned in the repair manual in the section about rebuilding the gearbox.

It appears they soon found that it was more trouble than it was worth, as it was dropped as a feature in the gearboxes quite soon in production. My exploded parts book is the same as the Op's and there is no parts listing for the bits. I think you would need a very early parts book to get part numbers or the sequence of the bits in order to put it back together.

John
p.s. I thought you might find details here: http://www.goatwerks.com/images/hafiepi ... Manual.pdf
but it appears to be the same 1970 parts book.

Re: Overload clutch for crawler gear

Posted: Wed Oct 12, 2016 8:55 am
by ogdenenterprise
001 (2).tif
Hi , Are these the parts you are looking for.

Dave

Re: Overload clutch for crawler gear

Posted: Wed Oct 12, 2016 11:10 am
by AustHaflinger
John - thanks for that explanation - from your description it is exactly the same as the Nokkin winch on my Landrover 101 - it too has an inbuilt clutch to prevent damage when drive form the engine exceeds the capacity of the winch.

Cheers

Garry

Re: Overload clutch for crawler gear

Posted: Wed Oct 12, 2016 6:54 pm
by m wehrman
My '62 has the clutch ,really freaked me out the first time I heard it! :o Sounds like a ratchet wrench when you spin it around. Called Jim L., worried that I broke something, He laughed and said it was normal! 8-) I run atv tires and I was really pressing it up a sand dune at the time. Also I read somewhere that you could permanently "lock-up" the clutch,but I never bothered.
Mark

Re: Overload clutch for crawler gear

Posted: Wed Oct 12, 2016 8:02 pm
by tiziano
Thank you to all for the info

I already had only the page of the parts list

Image

that I found in the web site of Autoquariat, but I didn't have the list of the parts.

Thank you Dave for sharing the pages.

Ciao
Tiziano

Re: Overload clutch for crawler gear

Posted: Wed Oct 12, 2016 9:02 pm
by ogdenenterprise
The parts list is from a 1961 print , which I found on the internet. I think I posted the web address some time ago when Goatwerks and Julian were looking for a drawing of a carb.
The web address is www.haflinger-luescher.ch click on Haflinger, then spares, scroll to bottom of page then you have a choice of series 1 or 2

hope this helps
Dave

Re: Overload clutch for crawler gear

Posted: Wed Oct 12, 2016 9:10 pm
by ogdenenterprise
ogdenenterprise wrote:The parts list is from a 1961 print , which I found on the internet. I think I posted the web address some time ago when Goatwerks and Julian were looking for a drawing of a carb.
The web address is http://www.haflinger-luescher.ch click on Haflinger, then spares, scroll to bottom of page then you have a choice of series 1 or 2

hope this helps
Dave
I printed both copies and laminated them , I also laminated a 1965 and 1970 parts and a repair manual. very handy when you are using them with oily hands, they just wipe off.