Mr. HDX, can you explain the Johnson bar? I’m only familiar with that term in a Manitowoc crane, it is (was) used to control the torque converter on the early Vicon machines. Thank you very much, you are a wealth of knowledge, Will in the pnw. On the Clark 8000 series Automatic transmissions, It only controls, Forward Neutral and Reverse..Same as what your application was. Not all the shift towers on the Clarks were the same. Maybe 075 can post a picture of the other style. These ones like the picture I posted,you would put the shifter in any gear you desire then push the Johnson Bar either ahead or to the rear Forward or reverse. On the tower you can see a slot on the R/H side of each gear, That is the "Lock up" position for every gear. When locked up it gives direct drive whereas when in the converter mode ,the clutches will slip . when they slip like that it creates heat and will eventually over time de-laminate the clutch packs. The problem with the Clarks was the retarders. the Young oil coolers were just not enough to cool the oil fast enough. You would start down a mountain and apply (Step on) the retarder pedal and in no time the trans oil temp was at 300 degrees. Having said this though,They were a pretty darn good transmission. I am always on the lookout for one to install in one of my restored trucks..(The WHD Hayes I have). It is a big job to install one though because they sit so high between the frame rails. Have to alter the bottom of the water tank to get them to fit
H89 at Shawnigan Division after getting converted to a conventional truck. It is the set forward steering axle that always gives them away. Look at the distance between the steering tire and the bumper, then compare it with a conventional truck.
Picture just for refference
It looks like H23 but it is H28. this was taken at the Shawnigan Division Shop Yard
The H70 nearing the end of her career
H61 was a 1973 model HDX In this picture she was 7 years old. She would sustain front end damage in an accident when the driver got out while the truck was being loaded and he left the trailer hand valve on instead of dynamiting it The valve came off and the truck rolled down the road and went into the ditch. Decision was made to scrap her.. Very sad way to end her career
Tight corners
H61
SOOO LOOONG AGO
This was a Northwest Bay Division truck H210 that Franklin picked up as surplus from them in 1972. We needed more trucks and this one and her sister ,the H208 both came up together Both these trucks had 8V71 N's and 4&4 trans Both were PreLoad trucks. Worked well but eventually they were reduced to other duties. The H210 would become the new Line Horse And H208 would be parked. When we started the PUP & Train program the H208 was restored to active duty again.. She would be converted into the Yard Truck for making up the pups and train loads. More pictures of those later....
This was Emmett Merediths loader for a long time. It was the one I hauled my first "Solo Load" from. Emmett would stay on her until the new American 7220 Heel Boom loaders came in 1972. The L50 would be taken over by another young guy Danny Williams. When he eventually got a newer loader, the L50 was surplused and sent to Copper Canyon Division. Lost track of her after that
