Hi JD, This code is communication error, software problem. can be expensive, or, simply bad connection. Orderpickers are very fussy about shorts to frame, static straps broken or the 10K resister that strap attaches to burns out. Use ohmeter from end of strap to frame, 10,000 ohms? You can change just the resister inside, Battery issues must be checked first,
Is there any voltage from post to frame? corrosion joining battery case to frame? You need to use amp meter on millivolts and connect to pos to frame, and and then neg to frame. Should not be any current. One millivolt can damage computer but i find you need 20 or more to really do damage. Sometimes find 250MV on truck that kept frying computers. Load test battery or use min/max on voltmeter while turning key on. Bad battery will drop for brief moment, like 17 volts on a 24 0r 25 volts from 36. Only meter with record can catch this. If that passes, leave bat unhooked and test for shorts to frame from pos and neg bat pins. Either one should have at least 200,000 ohms. If you see below that, like 150 ohms, then its a serious short. Unhook motors one at a time until short goes away. Shorts are sometimes on diode's, transisters, heat sinks.
These are standard tests fro all raymonds, but more important on OPC.
If all passed, then check connections inside panel. Without a manual, and direction, you can still check all plugs for corrosion and bent or backed out pins, wires broken inside from flexing. Go through some some re-start truck a few times to see if code cleared.
If you still have code, you need manual and deep pockets!

I was curious if you had a code definition or list for raymonds, I've got a code A4 on a 152-opc30tt stacker. Saw your name was "eazi-tek" so figured you might know. Just bought this unit and it was supposed to be "completely refurbed unit". Instantly saw elec.tape on the rotary encoder for the drive steering unit keeping it in one place. Knew that wasn't good. Just can't get a code definition anywhere. Any help would be appreciated.

if your getting stuck in pallets try removing one shim from each castor wheel(wheels on sides of drive tire) this is what I always do and it works everytime. if the truck is lifting unevenly then you adjust the eccentric bolts.

Hey Charly,
The 8400 is a tighter fit than most other lifts. There is more metal at forks. Adjustment is by rotating eccentric pins, under the battery. You must remove lock bolt, then tap out pin (from opposite side) just enough to clear pin head from frame stops. Turn pin hex to get truck at desired height, on each side, evenly. But, before doing this, check the wheels to see if they tuck in flush with body. As for getting stuck in skids, Raymond Factory fix was to grind stops away, (WHERE TRAIL FORK RAISES UP INTO FORKS) allowing wheels to travel farther up, giving more clearance. Grind any excess metal at tip area, and smooth it out with buffer. I've done this factory fix before. Also, caster type makes a difference too. Spring type works best for loading trucks as it gives. Rubber type is more solid and prevents sway, but gets you stuck on dock plates as it lifts the tractor, binding the skids. Get this adjustment right, or elses the truck cant stop or turn on tight corners, or it shakes side to side and is hard to steer. Extra shims from Raymond are a gazzillion dollars each, so be precise, or make em!

From the book -

HPD: High Pedal Disable - The HPD feature prevents the truck from being started while the throttle is applied. The system is programmed to give the HPD warning if there is a throttle request before a truck ON or brake release signal input.

Bassically your throttle potentiometer is out of range and needs to be replaced/adjusted or your throttle mechanically needs new spring/bushings/handle grips etc..

Code 35 is

Brake Switch Error - Normal travel controls are disabled. the truck will respond only to activations of the emergency reverse switch if the traction motor is rotation in tractor-first direction.

Alarm sounds 3 beeps once the error code is generated.

Reason for this code: The brake switch is out of adjustment or damaged at the same time the traction motor is detected rotating.

Adjust or replace the switch for the brake SW2(deadman). This is the switch that the entire arm actuates when you push the arm down.

Code 30 is

Emergency Reverse Switch has been activated.
Normal travel controls are disabled. The truck will only respond to emergency switch activation.
Alarm sounds 3 beeps when error code is generated.
The reason for this code: The emergency reverse switch has been pressed then released.

Cycle the brake (deadman) switch and engage the brake and this code should clear after cycling the brake.

Code 22 is

ANTI-Tie Down

Travel is limited to coast speed, all other systems perform normally.
Alarm sounds - NO
Reason for this code: Rabbit switch pressed ahead of the brake being released or throttle being applied.

CONFIRM that the rabbit switch is not stuck/shorted out, replace and adjust as neccesary.

Also getting stuck in pallets and whatnot, our trucks here have replaceable plastic "skids" bolted to the tip of the forks. The skid lifts the tip of the fork up as your sliding into the pallet. Also if you have alot of broken pallets or trying to move around empty pallets that have no weight on them you will get stuck regardless of having skids/rollers on the fork tips.

--Cheers

Going off memory these trucks had two options for entry rollers.
1 is a three wheel option with the each wheel being higher than the other with the front wheel being the highest. The second one is what they called a slide plate, nothing more than a plate bolted to the bottom of the fork. Either option I believe had to be ordered that way from the factory as they are bolted to the truck differently with the three wheel bolting from the top and the plate bolting from the bottom.

Sorry, I don't have any part information for Raymond's.

Im just going on previous experience on other brand's of ppt's & llop's with customer's & salesmen speccing trucks incorrectly then having to sort the problem out once it turns up on site.

Normal issue is the truck wont enter / exit certain types of pallets cleanly & the normal fix is fit the optional climber wheels, empty pallets are the worse as they either get pushed along the floor or the truck drags it along as you try & exit.

No I don't see any little wheels near the tip. This is the area that we are getting caught, right around where the load wheels are. This unit does have new load wheels- may it be more difficult getting in and out until they are worn down a bit? Do you have a part number for the optional wheels?

Does it have small climber wheels fitted under the fork unit?

There normally either at the tip of fork & / or behind where the front bogie unit is.

Some llop / ppt these are an optional extra & make entering / exiting a pallet much easier.

We seem to be getting stuck in pallets very easily. Is there a way to adjust the forks to avoid getting caught up so easy?

Fantastic. Thank you!

It's a warning for rabbit switch being on before you twist the accel.
That switch on the grab handle is a complete unit and you cant buy separate parts. It was updated and comes with a new harness now.

Thank you for your thorough response. I'm sorry in my initial post I put code C20 in error, the code was C22. Do you have any insight on the C22 code?

Something as simple as a stuck throttle pin will hang up the grip and wont allow the VM to see neutral. HPD is high pot disable. Most brands have this in case the throttle is twisted on and you close the deadman switch, the truck may launch fwd. You get code "HPD"
Check the twist grip operation, it should snap back to the middle easily in either direction. If not, take it apart and check for a roll pin backing out on the grip wire, hitting the throttle bearing. Very commom. Code C30 is belly button switch. It's most likely broken. Do not try to fix as the plastic piece cannot be straightened and will cause grief!. Removing it completely will stop the code though. As long as it's in the wrong spot, truck wont move. C35 is brake switch out of adj. It may be on with handle up or too far down out of adj. Make sure spring on handle can lift the handle up all the way...they often break! I think you have a collision damaged truck that can be fixed easily.