Discussion:
Seat switch/ seat belt operation wiring

Greetings All,
Hyster Model H60FT
Serial number P176V09660S
Engine PSI 2.4 LITER
Recently an existing customer had me take over a new (to me) location.
He asked me to bring a generic seat with a seat switch to install on this machine. When I got there I found what appeared to be an after market seat belt with wires that have never been hooked up. There was a harness and plug, with I think 4 wires, for the seat belt had been cut. I assumed that it had been bypassed elsewhere.
The original seat switch harness had 4 wires and my new seat only had 2. I though I had it figured out but it is a no go on hydraulics. I get a hydraulic interloc code on the dash, sorry I didn't take a picture.
Thanks for any help
steve at coastequipmentservices.com
  • Posted 8 Mar 2022 12:41
  • Modified 8 Mar 2022 12:41 by poster
  • By ForklifttSteve
  • joined 13 Nov'19 - 28 messages
  • Mississippi, United States
Steve Pierce
Coast Equipment Services
Showing items 1 - 4 of 4 results.
Great info. Thanks Andrew.
Actually this morning I put the busted up OEM seat back on so customer can use the lift. I'm getting pricing for a new OEM seat today-
  • Posted 15 Mar 2022 04:15
  • By ForklifttSteve
  • joined 13 Nov'19 - 28 messages
  • Mississippi, United States
Steve Pierce
Coast Equipment Services
you have to put a resistor across the seat switch wires to use an aftermarket seat. The truck either needs to see the switch fully closed and a resistance when the switch is open. Not switch fully closed and fully open
  • Posted 15 Mar 2022 03:13
  • By andrew_k
  • joined 17 Mar'07 - 329 messages
  • England, United Kingdom
Great info, thank you Fishmech-
  • Posted 15 Mar 2022 00:54
  • By ForklifttSteve
  • joined 13 Nov'19 - 28 messages
  • Mississippi, United States
Steve Pierce
Coast Equipment Services
Steve,

The newer the lift the more safety features installed. The seat switch on most lifts over the past 10 to 15 years has 3 to 4 wires. The lift will not operate correctly unless all wires are connected. The hydraulic lockout is a solenoid at the valve that will not release unless someone is sitting in the seat. Looking up the seat, I see a full suspension seat without seat belt interlock. Hope this helps.
  • Posted 14 Mar 2022 23:12
  • By Fishmech
  • joined 12 Jul'17 - 370 messages
  • Virginia, United States
The hard to do we do right away. The impossible just takes a little longer.

Post your Reply

Forkliftaction accepts no responsibility for forum content and requires forum participants to adhere to our rules of conduct. Click here for more information.

If you are having trouble using the Discussion Forums, please contact us for help.

Upcoming industry events …
September 24-25, 2025 - Tangiers, Morocco
September 25, 2025 - South Brisbane, QLD, Australia
October 23, 2025 - Atlanta, GA, United States
Global Industry News
edition #1247 - 11 September 2025
In what may prove to be a sign of things to come, Canadian materials handling equipment lithium-ion battery manufacturer, UgoWork, has announced battery assembly for some forklifts bound for the North American domestic market will now be done in the US. See the story for full details... Continue reading
Movers & Shakers
Andries Retief Andries Retief
Chief development officer, DHL
Director, ICHCA Australia
CEO, TVH
Sales and operations director, Logitrans A/S
Upcoming industry events …
September 24-25, 2025 - Tangiers, Morocco
September 25, 2025 - South Brisbane, QLD, Australia
October 23, 2025 - Atlanta, GA, United States
Movers & Shakers
Andries Retief Andries Retief
Chief development officer, DHL
Director, ICHCA Australia
CEO, TVH
Sales and operations director, Logitrans A/S
Airman ENCL045
Yokohama, Japan
Used - Sale
Taylor TE650S
Coraopolis, Pennsylvania, United States
Used - Sale & Hire

PREMIUM business

Combilift Ltd
Manufactures world class 4-way Handling Solutions
Latest job alerts …
Danville, IL, United States