Hi Martin, Happy New Year,
Here is the first instalment for 2006 from the West Yorkshire Heavy Engineering Nutters Company!!

After the nightmare of wiring up the lighting I decided that the tracks needed some attention. The track pads are built up from 3 pieces of small section hardwood arranged around the holding bolts on the track plate and covered with a layer of 1/8th rubber (salvaged from car mats!!) bonded in place with hi grade epoxy resin adhesive. So that was 120 x 3" long, 240 x 1" long and 120 3" x1/2" x 1/8" rubber strips, nearly as maddening as the wiring!!






These fittings now give the tractor an authentic sound when running over tarmac/concrete.

The next problems to be tackled were the roof hatches. The assister springs were wound from soft galvanised wire and the hinge pin is a section of brazing rod. After much juggling of the linkages the main roof hatch was made to lock down in the closed position and the support strut fitted to the roof. The next problem with linkages will be the door locking system as this needs to keep out the water when launching the lifeboat!





A start has been made on the internal fittings and the seat for the driver has been built and fitted. This is a swivel seat and yes it does swivel!! The driver is a modified Action Man, he has had extensive surgery to shorten him to be 5' 6" tall and not 6ft to allow positioning easier.The main hydraulic drive controller joystick is the main lighting control switch. Next set of fittings will be all the other controls and dials.





 

After several frustrating attempts I have finally managed to make the linkages for the door locking dogs operate in the correct manner.

this shows the locked position


This shows the open position


The pale coloured strip around the door is a rubber seal so that when the door is mounted in the frame and locked shut the whole of the opening is watertight (helped along with a layer of vaseline!!). This wil enable the tractor to enter the water and NOT drown the driver!!!
 

Martin - What are / how did you make the rubber strips?

Mike -  The rubber strips are made from a cheap 99p car mat!! Once the strips were  cut to size all the little pimples were cut off with a pair of end cutters  and after bonding to the wooden sub-bases were sanded to give me a smooth  finish on the upper surface as per the original tractor track pads, each  sub-unit was then bonded to its track plate, all 120!!!

Martin - Did you need a straight jacket to complete that task????

Mike - I have had a very natty little number with buttons up the back for the last 18 months of this build!!



 

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