Transmission / axle wind up !!! Cmp

[Phil Waterman]

Hi Mark

Both of my C60 trucks have done this at one time or another. Has Rob points out the problem is less pronounced if the tires are all the same actual diameter.

Another thing to check is that the linkages are actually adjusted correctly so that the lever movement actually matches the detent location. Too check this put the truck on a flat floor and jack up one front wheel to be sure you unload the front wheel drive.

You don't mention if you had the truck down in low range, I've had the loading problem and the difficulty in shift out of low range as well. In that case you need to jack up one front and one rear to get rid of the loading then adjust the linkages per the manual.

The other thing I have found is that the shifting tower if it is not well lubricated and used and get very stiff all by itself, this will add to the problem. I suspect that the detent ball and springs get stiff from lack of use. So as part of my spring check on the when I have the truck up on jack stands I just work the high-high 4x4- and low in and out until the lever is moving smoothly.

As I think you said your truck has the winch be sure you have the winch brake on full when you play this game for obvious reasons. The winch needs the same checking to be sure that the lever position and the actual detent on the power take off of the winch are matching. Have you used the winch yet?

Be careful the winch it is much more powerful then anything I've encountered on US trucks of the same size. Do you have the winch scotches?

Cheers Phil

[Mark Towers]

Hi Phil,

Thank you for your reply :-)

In answer to your question about the winch.... Yes I have used her only twice ! The first occasion was whilst towing my Bofors around a field. It had bee rating here in the West Country for weeks...... The ground clearance on the Bofors is fairly poor and the jack stabiliser discs dug into the the ground and started to plough up the field... Eventually the all four wheels on my LAAT were spinning. I slipped tow of the gun and drove the old girl out no problem. I had never used the winch before and decided to try it out !
I ran the cable out and hooked it up the the gun.... The winch pulled it out effortlessly !
I was rather impressed ..... It destroyed the field though lol.

Yes I have the winch scotches but didn't need to use them in the end as the hand break seemed to hold the LAAT ?

The second time I used the winch was to see how long the cable was. I over cooked it and ran the complete cable off the drum . Very long indeed. I hooked up to my VW Polo and rewound the cable back in under weight.

I took the old girl for a road run yesterday evening (20 mile round trip) she ran fine ... But I will still carry out further checks that other forum members have kindly instructed !

Thanks again.

Kind regards,

Mark

1944 CMP F60 LAAT
1942 Canadian 40mm Bofors Gun
1940 BSA M20
1944 Military Cycle Bike