Discussion:
Clark TMG25 S/N TMG248-1905-9570KF code A66

I am working on a Clark TMG25. The truck shows code A-66, has full travel but no hydraulic functions. I have read other posts that refer to thies trucks being hard on motors and controlers so if anyone has any advice as to what to look out for, that would be great.

THANKS
  • Posted 2 Nov 2013 02:49
  • By RAFARMER
  • joined 17 Jan'12 - 153 messages
  • Texas, United States
rafarmerjr@gmail.com
Showing items 1 - 3 of 3 results.
Thanks for the post Kevin, I will check out all that you listed and will post the results as soon as I can get back on that truck.

RIchard
  • Posted 5 Nov 2013 08:37
  • By RAFARMER
  • joined 17 Jan'12 - 153 messages
  • Texas, United States
rafarmerjr@gmail.com
This is from the TMG manual for a code-66
Read the LAST Paraghragh....... It is a TMG my mistake...the slave is throwing the code....read on last paragraph

Description:
FET field protection has shut down.

Causes:

Bad fuse, should be checked for excessive volt drop. Do not check fuse w/ohm meter.

Line contactor tips welded open. Repair line

Verify that there are no motor field shorts. Motor fields should measure 0.6 to 0.7 ohms.

Verify that there are no cable shorts between: B+ and F1 B+ and F2 A2 and F2
A1 and F2 F1 and F2
All of the above to frame

An A66 will be generated in the Slave control anytime the Master control opens the Line contactor (PMT). Both controls interpret the sudden loss of B+ as a 66 code.
  • Posted 2 Nov 2013 05:27
  • By kevin_t
  • joined 2 Dec'10 - 1,301 messages
  • Pennsylvania, United States
You Sure this is a TMG truck...I don't think their codes will show an A before the code...is it a TMX AC Drive truck? If so following is the description for a code 66:

When battery level reaches 20% or less or (10% on the dash display), the current level for the drive motors is reduced to 50% of the programmed level and the lift function is locked out.
  • Posted 2 Nov 2013 04:43
  • By kevin_t
  • joined 2 Dec'10 - 1,301 messages
  • Pennsylvania, United States

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