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Transmission not going in reverser

Hello!
I am working on a Heli LP lift truck model CPYD20-TY with a GM 3.0L engine and the transmission will not engage into reverse. I hear back up alarm come on but to action from trany. I replaced the solenoid valve that sits on top of transmission valve body because someone else has previously ordered it, but it did not make a difference. Trouble i have is that i have no info on the transmission or schematic for elec. circuit related to it.
Fist question is if anyone can share any info needed, and secondly, any ideas what may be causing failure?
Thanks.
  • Posted 21 Sep 2023 12:11
  • By Vic_Lozan
  • joined 21 Sep'23 - 1 message
  • Virginia, United States
VL
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Showing items 1 - 1 of 1 results.
First of all check voltages going to those solenoids , secondly forward/reverse lever , those units have 5 wiring , 3 is for direction and 2 for back buzzer sound, and wiring sometimes upon build those wires are struck between dashboard assembly , and corosion between connectors
  • Posted 10 Jun 2025 17:34
  • By Archili_Gogava
  • joined 18 Sep'20 - 12 messages
  • Georgia
F/G
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edition #1243 - 14 August 2025
In this week’s Forkliftaction News , we look at more financial reports with one major producer recording a “significant” decline in Q2 bookings to report an operating loss of USD8.5 million, while another had a strong quarter “despite increased trade tensions and a challenging geopolitical landscape”... Continue reading
Fact of the week
The black box flight recorder was invented by Australian scientist David Warren in the mid-1950s. While initially met with indifference in Australia, his invention gained international recognition, particularly in the UK, and is now a mandatory piece of safety equipment on all commercial aircraft.