1965 CLARK FORKLIFT UPDATE

anyway a couple of the diodes had blown, and it was actually trying to go into forward and reverse at the same time. The purpose of that is that it provides a neutral safety switch, so the engine will not start in gear. They have a pretty complicated wiring harness, it has I think about six diodes that are wrapped into the loom. That was the reason the one I worked on had died. If you have the electric shift, you may have trouble with that at some point. They were not cheap, in fact nothing was. At that time Clark had all of the manuals. I don't remember the model that I worked on, but it was in the 3000 pound lift range.

If it's not red then it would be AW 46 hydraulic oil. Like Stuart says, if it's a red, it's transmission fluid. It's been so long I'm not really sure I remember, but I think it took regular hydraulic oil.

1965 CLARK FORKLIFT UPDATE

Will update with pictures, not sure about the order to take this apart.Many years ago I got the distinct privilege of rebuilding the transmission in one of those things. I think these brakes are in an oil bath so opening it up is going to be messy.

Parking brake cable is slack, and the arm it's connected to (which looks like it goes to a lever through the bell housing), is fully in the released position.Įdit: So my buddy came by the shop and he said it seems to feel like a brake shoe is grabbing and locking, i tend to agree with this so i got the front up in the air with our overhead hoist and put it up on blocks, took the right wheel off, and pulled the hub, started it up and the planetary drive gear spins immediately, and stops when you apply the brake, Left side is locked up, so the problem is definitely in the left brake, the open differential is putting the motion to the right since the left is locked. It also has sort of an intermittent kind of drag (what would feel like a warped drum on a car) until the thing fully breaks free.Ĭould it be in the parking brake? is this a separate brake from the normal brakes? Remind you i never touched the brake pedal during these test, but in other times touching the brake pedal initially (before you actually press into the braking action) has the same effect as shifting to neutral (which is desired) and has the same result as above, shifting into neutral then back into gear. Shifted it back into N hopped off and i could push the lift forward by hand (heavy son of a gun) but when i tried to pull it backwards by hand it definitely locked up against a brake, like a ratchet? In reverse it does the same thing but when you put it in back neutral it doesn't seem to want to go forward or backwards when pushing/pulling by hand. Ok so i just got done doing some testing, during these tests i NEVER touched the brake pedal, i just shifted at idle directly into F N and R, Started the forklift up, let it idle for about 30 seconds to get all the fluids pumping, put it into F and it sorta jolts forward about an inch and then stops and you can hear the engine under load, give it a stab of the gas and it will release and start driving forward.

1965 clark forklift