Hyster H 150F:
Reversing Problem

I have this 7 ton machine which is quiet old. Recently i have to rev the engine a lot to reverse it and sometimes it tends to "jump" or "jerk" along in reverse. Transmission oil and filter in good clean condition. Machine is fitted with a 4 cylinder Perkins and Hystamatic gearbox 2 speeds. Any ideas what the problem might be?
  • Posted 26 Apr 2012 19:57
  • Discussion started by grifter
  • munster, Ireland
Showing items 1 - 12 of 12 results.
Yes As soon as I removed the seal assy and gasket all was revealed. I managed to get it all removed without too much bother. It just needs a good clean up and new cables for the parking brake. Once again thanks for your help.
  • Posted 3 May 2012 04:19
  • Reply by grifter
  • munster, Ireland
Got your pics. Looks like the seal assy is part of the gasket between the axle & hub. You have to remove seal & gasket assy (plan on replacing these) & underneath you should find 2 large nuts- 1 behind the other with a locking ring between them. The outer nut is a locking nut. Remove both nuts & locking ring & the hub assy should become loose. You may have to slack off the adjustment of the brakes to remove the hub. I balance the hub on a floor jack when removing the hub- makes the job alot easier if you're by yourself.
  • Posted 2 May 2012 12:11
  • Reply by bbforks
  • Pennsylvania, United States
bbforks (at) Hotmail (dot) com
Customers love technology- until they have to pay to fix it!
Will do but will be a few hours
  • Posted 2 May 2012 03:43
  • Reply by grifter
  • munster, Ireland
I'm not familiar with your exact model- could you send me a picture of the hub & one of the entire forklift?
  • Posted 2 May 2012 03:38
  • Reply by bbforks
  • Pennsylvania, United States
bbforks (at) Hotmail (dot) com
Customers love technology- until they have to pay to fix it!
I managed to remove the front wheels and released the parking brake attachment from the rear of the hub. The parking brake was the problem as at least one of the cables was damaged. Wheels are now turning but will need to be more free. We need to remove the hub to do a proper clean up within and install new cables. We are not sure how to go about this and need some guidance. I have removed the end cap and half shaft on one side and this has exposed what looks like an oil seal but after this I am wondering what exactly holds the hub in place. Any comments?
  • Posted 2 May 2012 03:29
  • Reply by grifter
  • munster, Ireland
No I have not replaced the master cylinder but it may have been replaced in the recent past before I purchased the machine. I have identified the adjustment on the pushrod and will back this off and test again before I remove the wheels.
  • Posted 1 May 2012 06:50
  • Reply by grifter
  • munster, Ireland
Have you replaced the brake master cylinder recently? There is an adjustment on the pushrod between the brake pedal & master cylinder which you can back off to see if there is any hydraulic pressure holding the brakes on.
  • Posted 1 May 2012 03:24
  • Reply by bbforks
  • Pennsylvania, United States
bbforks (at) Hotmail (dot) com
Customers love technology- until they have to pay to fix it!
I have lifted the front wheels off the ground as suggested and it appears I have a problem within as I cannot turn either wheel by hand while in neutral. Also in either forward or reverse there appears to be resistance but its far worse in reverse. I have slacked off the parking brake adjustment but to no avail. I am awaiting a guy with the heavy tools needed to remove the wheels and check out within. At least I know now where the problem is as I had worries it might have been the transmission. thanks guys for your help. I will let you know the outcome.
  • Posted 1 May 2012 02:46
  • Reply by grifter
  • munster, Ireland
I have had the park brake cable bind up and not release all the way, which makes the brake drag more in reverse than forward.
Just a thought.
  • Posted 29 Apr 2012 04:23
  • Reply by meliftman
  • Alabama, United States
Liftman
Retired
Elberta, Al.
Since you have parking brakes intregal with the service brakes I would try the following: Raise drive wheels off the ground (blocks under upright & full tilt forward should accomplish this), engine running, trans in forward, bring wheels to stop w/service brake & while holding brake shift trans into reverse & release brakes- see how free wheels are to turn in reverse. If they stick, put trans in forward again & then put trans in nuetral & let wheels stop rotating on their own. Once wheels stop rotating- shift into reverse & check how free wheels are to trun in reverse again. If they still tick I would back off the brake adjusters & do both tests again. I've seen brake shoe return springs break inside the drumn assy & this can allow a brake shoe so stay out & drag in one direction- hope this helps.
  • Posted 29 Apr 2012 03:35
  • Modified 29 Apr 2012 03:38 by poster
  • Reply by bbforks
  • Pennsylvania, United States
bbforks (at) Hotmail (dot) com
Customers love technology- until they have to pay to fix it!
Thanks for that. My parking brake has two cables from the lever, with a cable going to each front wheel. I will try to disconnect and test.
  • Posted 28 Apr 2012 18:45
  • Reply by grifter
  • munster, Ireland
Had a situation once where the parking brake was hanging up in reverse. Try removing the parking brake & check reverse operation. -Note- the parking brake in my application was on the drive shaft just in front of the differential
  • Posted 27 Apr 2012 14:03
  • Reply by bbforks
  • Pennsylvania, United States
bbforks (at) Hotmail (dot) com
Customers love technology- until they have to pay to fix it!

Having trouble using the Discussion Forums? Contact us for help.

Forkliftaction.com accepts no responsibility for forum content and requires forum participants to adhere to the rules. Click here for more information.

BSLBATT battery, a fast-paced, high-growth, hi-tech lithium-ion technology solutions company, is looking for Global Partners for expansion.
Sensortronic Weighing & Inspection Australasia (SWIA) is an industry leader in weighing measurement solutions and is an exclusive agent for the Compuload range of products.

Featured Business

Bolzoni SpA (Group HQ)
Manufacturer of Lift Truck Attachments, Forks and Lift Tables, with the most extensive range in the market.

In the Discussion Forums

Latest Jobs

SouthEast, United States
Mobile, Alabama, United States
Lexington, KY, United States
Richmond, Virginia, United States
Kakinada, India Bothra Shipping Services has ordered three all-electric Generation 6 Konecranes Gottwald Mobile Harbour Cranes for its bulk terminals at the Port of Kakinada, on the central eastern coast of...
Montevideo, Uruguay A South Korean-Argentinian joint venture will open offices in Montevideo in the second quarter of 2023 to direct its operations in Latin America. The Avancargo-Coconut Silo Joint Venture consists...

In the Virtual Expo

HELI's new K2 series internal combustion forklift
Newly launched, HELI brings a new generation of technical innovation and quality improvements to give users a brand-new driving experience. Featuring exhaust gas after-treatment technology for green advantages.

Next Editorial Features

FORKLIFT MANUFACTURING IN CHINA - Feb 2023
SMART ATTACHMENTS - Mar 2023
Kakinada, India Bothra Shipping Services has ordered three all-electric Generation 6 Konecranes Gottwald Mobile Harbour Cranes for its bulk terminals at the Port of Kakinada, on the central eastern coast of...
Los Angeles, CA, United States Driving a forklift in downtown Los Angeles to honour his wife’s 50th birthday seemed like a good idea until Timothy Krehbiel drove over a guest’s foot. According to Reuters...

Inside Forkliftaction

The tide of new products continues, and this week we report on a few new offerings which reflect broader industry trends.
The move to electrification sees MacGregor debut a fully electrically driven heavy-duty transloading crane. Hubtex, meanwhile, has released its new RoxX electric heavy-duty compact forklift.
Also on the electric
...Continue Reading

Fact of the week

The earliest known production of steel is seen in pieces of ironware excavated from an archaeological site in Anatolia and are nearly 4,000 years old, dating from 1800 BC. The main reasons for the popularity of steel are the relatively low cost of making, forming, and processing it, the abundance of its two raw materials (iron ore and scrap), and its unparalleled range of mechanical properties.