Discussion:
Hyster S120XLS torque convertor

Does anyone know about a torque convertor giving jerky travel in forward and reverse? Any ideas on what is causing this? My guy usually works on Raymonds, so he is not as familiar.
  • Posted 24 Dec 2008 01:11
  • By robin_m
  • joined 24 Dec'08 - 9 messages
  • Texas, United States
Showing items 1 - 9 of 9 results.
right. there is 13 pressure points on this transmission. if you sit on seat check port 1 is under your right heel on the transmission this is system presure ,should be about 180 psi.check port 2 is about 3 -4 inches to the left of port1. this is torque convertor pressure should be about 120 psi. then try port 3 which is a comman port for clutch pressure. 3 is slap bang in the middle of the control valve ,it should read about 135 psi. try these 3 first i think you,ll find something here. make sure it,s warmed up and take readings at 3/4 of full engine speed. oil is j20a/c
  • Posted 31 Dec 2008 03:42
  • By kevin_k
  • joined 25 Nov'05 - 502 messages
  • dumfriesshire, United Kingdom
that would be great! thanks! He also asked what type of transmission fluid and where is the pressure test port.

thanks again
  • Posted 30 Dec 2008 05:20
  • By robin_m
  • joined 24 Dec'08 - 9 messages
  • Texas, United States
time for a pressure test then, i,ll look up the settings tomorrow. my money is on torque convertor pressure
  • Posted 30 Dec 2008 05:15
  • By kevin_k
  • joined 25 Nov'05 - 502 messages
  • dumfriesshire, United Kingdom
He checked the oil, and the linkage is ok.
  • Posted 30 Dec 2008 03:23
  • By robin_m
  • joined 24 Dec'08 - 9 messages
  • Texas, United States
Ok, my guy says while the unit is in drive and you accelerate at a high RPM, the unit will not move until about a minute or two and then it slowly goes into gear and takes off. He said it wasn't the u-joint.
  • Posted 30 Dec 2008 03:22
  • By robin_m
  • joined 24 Dec'08 - 9 messages
  • Texas, United States
did you check the ujoint?
  • Posted 30 Dec 2008 00:13
  • By justinm
  • joined 13 Apr'06 - 604 messages
  • New York, United States
New York, New York its a heluva town..you know that The Bronx is up..and I'm Brooklyn down
firstly have you checked the oil , with the engine at tickover. then check linkage is ok ,sometimes the locking nuts on the rods come loose and lengthen the rods.
  • Posted 25 Dec 2008 04:55
  • By kevin_k
  • joined 25 Nov'05 - 502 messages
  • dumfriesshire, United Kingdom
It is lever control. It does not drop out of gear. Any thoughts?
  • Posted 25 Dec 2008 02:58
  • By robin_m
  • joined 24 Dec'08 - 9 messages
  • Texas, United States
is your truck lever control or monotrol pedal. is it jerking like it,s dropping out of gear. check inching linkage is ok
  • Posted 24 Dec 2008 04:02
  • By kevin_k
  • joined 25 Nov'05 - 502 messages
  • dumfriesshire, United Kingdom

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