www.forkliftaction.com/forum/thread.asp?trid=19916

Does anyone have the test points for the Q1 transistor?

FYI this is Raymond part number 828-900-101
Q1 transistor kit
We carry them at Intella Liftparts

jonG - Same code replaced Q1 REC. and coded 40 after replacing, told the customer charge the battery and back next day.Battery showed fully chrg. but S.G where 1.240-1.220. Replaced battery now a can sleep!!! Static strap with insulator and a clean battery your set!!

OK, it's a lift truck. 95% of the time you will need to replacxe Q1/Rec 1 and the power card... Before you do check the cables to the motor, ensure that the insulation has not rubbed through, and that the leads are properly attached. Also check that the batt neg is properly attached to the heatsink (sometimes that will burn off). Please check that the battery is good and not shorted to the frame on both sides (raymonds are sensative to that). Do you have the superword? It will make running the diagnostics easier for the power system.

Sorry for not including the model, it's a ESAI and the unit won't drive at all, but I can use the lift functions. Thanks for the info so far.

yeah if the orderpicker book i have makes reference to the motor cables too but it mentions improper cable routing

its saying that the current sensor isnt seeing the proper current (ct1 on the power card) and the q1 sense circuit isnt seeing the proper voltage for some reason - an open circuit

to test the Q1 youll need a digital multi meter that has a voltage diode test

Normally Code 23 is a hard fault, and is an open in the transistor circuit. You will normally have to check Q1, and it's related circuit, which is the drive motor, the parts on the heat sink where you find Q1 (Rec1, maybe rec2, c-1 and r-1), and the power card. Normally you will find that Q1 is blown, and the power card is faulted. Q-1 comes witha new rec1 as a kit, change it as well.. Sometimes you will find a lead burnt off of the motor. Good luck

If it's an intermitent fault let us know and we can walk you through the rest of the checks.. It helps to have the complete model and serial #. Do you have the superword as well?

you need to post the model and serial number (at least the 1st 2 parts of the serial)
but for an orderpicker it means it detected an open in the main transistor circuit upon startup

this may be the same for a reach but im not sure

is the problem intermittent? or is the truck dead with a 23 right when you turn it on?

are you the operator? owner? or a tech?
if youre not a tech id call the raymond dealer