Hyster Forklifts anyone?

[Oregon Jon]

I have a 1977 Hyster SS25 that has some issues. I need to get a repair manual for it but I'd like to find a used one. I've seen them before on E-Bay, but I thought I would start here. Also if anyone has any expertise on these things I would love to chat. Thanks

 

[jimyoung]

Re: Hyster Forklifts anyone?

It has been awhile, but I was a Hyster service mechanic in the early 80's, cant help with a manual, but outside of electronics on the engine they cant have changed much.....what are the problems/symptoms?

 

[Windykid]

Re: Hyster Forklifts anyone?

I also worked on them quite a bit in the military. Let me know if I can help.

 

[Oregon Jon]

Re: Hyster Forklifts anyone?

Thanks for the replies. Jim, I sent you an email to the link you gave me also.

Anyway here is the short version: It needs a valve job, which is the main reason for the repair manual (specs and such), but it really doesn't run too bad. The most aggrevating thing is the transmission/clutch. It uses the Monopedal system, that I assume you have seen before. It has plenty of fluid, but acts like it doesn't. It takes 5 or 6 seconds to move in either direction. Actually forward gear is the worst, and has trouble with any kind of an incline. I see no leaks, and the fluids look clean.

I was hoping someone could just tell me where the magic adjuster knob was

Seriously though, is there an adjustment for this or do you think it isjust wearing out?

 

[Windykid]

Re: Hyster Forklifts anyone?

Have the trans filter and hydraulic filters been changed?

Does it respond better once it is warmed up?

Are the brakes dragging?

 

[Hoss the Hermit]

Re: Hyster Forklifts anyone?

Operated them for years, got a lot of the newer ones in the place I work, still. Our plant fork truck guy says manuals are available fom Hyster, but pretty pricey. I'll take in the model # tomorrow, he said he's got some old manuals still kicking around, and no longer needs. Didn't think to take it today, let ya know tomorrow what I find out. Is that lp gas, deisel, or what?

 

[Oregon Jon]

Re: Hyster Forklifts anyone?

The transmission and hydraulic filters have not been changed since we bought it in June of this year. To be honest I did not know it had this type of filter. Our previous forklift did not.

We had the brakes redone recently and they do not seem to be dragging.

Ours is a dual fuel model but the gasoline line has been disconnected, so for us it is LPG only.

Thanks again for your help.

 

[jimyoung]

Re: Hyster Forklifts anyone?

There is a magic adjuster...its called a relief valve.....again I would need the manual to adjust......if I remember right it is the kind that can be shimmed....sounds like you are getting a lot of help.....you should be running right along before too long

 

[Oregon Jon]

Re: Hyster Forklifts anyone?

OK I think I found the transmission filter and replaced it. It is a large filter with PUROLATOR P-192-N inscribed on the top of the housing.

This does not seem to have made a difference.

I am using standard ATF. Should I be using something else?

 

[Hoss the Hermit]

Re: Hyster Forklifts anyone?

We used to run SS50's at about that time. My guy at work thinks there are a couple manuals in the "archives" ( somewhere out in the back room or up over the shop), said he'll take a look, he thought they covered all the SS models in that mid-size range. I'll keep ya posted

 

[Oregon Jon]

Re: Hyster Forklifts anyone?

Thanks Hoss. I'll keep checking. It seems like it is getting worse.

If your guy ends up finding a manual that he can part with, I would certainly be willing to pay for it.

Thanks everyone again for your input and please keep any other suggestions coming.

 

[Hoss the Hermit]

Re: Hyster Forklifts anyone?

Sorry for the delay, Jon, had the weekend off. Guy at work took a look, couldn't find anything. May have been thrown out, or just buried deeper. Will keep eyes open, any news will report back. Have you checked area dealer?

 

[Oregon Jon]

Re: Hyster Forklifts anyone?

Thanks anyway Hoss.

Please do keep your eyes and ears open for me. It is greatly appreciated.

I did contact the local dealer and I can get a service manual through them for a mere $203.00 plus freight.......

On a potentially brighter note, I did discover (with some expert help) that the master cylinder plunger was somewhat out of adjustment which accounted for some of the loss in power and I found out that ATF is the wrong thing for the tranny. So I am trying to figure out how to drain everything and start fresh with 20 weight.

Anyway, thanks again for your efforts.

 

[Hoss the Hermit]

Re: Hyster Forklifts anyone?

WOW! He said they were pricey, but I had no idea

 

[Oregon Jon]

Re: Hyster Forklifts anyone?

Nice huh?

So if you ever here that they are going to be throwing any old manuals for anything away, I would definitely offer to take them off of their hands if I were you.

Hope you had a great Thanksgiving.