m920 stuck in reverse

[terraglide]

I just got an m920, put batteries in and fire it up, presto! tranny won't do anything. after fooling with it for 15 minutes it goes into gear and runs, then i put it in reverse
to turn around and I'm stuck in reverse. It actually goes into reverse when I put
it in forward gears. I have 16th gear in reverse! I'm sure it's from the truck sitting for years without running, probably an actuator stuck. If anyone has info that could help
I'd really appreciate it.

 

[R Racing]

Try some air tool oil in the air tank under the drivers side, Then shift it til your blue in the face, LOL. Also whats your air pressure at? Should be around 120 to 125 PSI.

 

[Floridianson]

Yea air tool oil to start but I might put it in the main feed line for the trans. Have you taken off the inspection cover in the cab to gain access to top of trans. and given a look sea.

 

[area52]

I would sell that truck, probably junk - just kiddin!

Welcome to the site from another New Mexican.

 

[terraglide]

Sounds good, I'll try air tool oil and go from there. I didnt notice the inspection cover, but that'll be
the next stop it the oil doesn't do the trick.

 

[Floridianson]

The cover will give you a good look at all the vent caps and top air plate. I would start there looking for missing vent caps and pluged ports.

 

[gimpyrobb]

Nice James. Copy cat.

 

[R Racing]

Now thats funny !! LOL

 

[oldMan99]

To help locate that panel, it is the hole in the floor in this pic.

Be sure to keep us posted on your progress/findings.

 

[terraglide]

I really appreciate the input, you guys are GREAT!!! gotta go to work now, I'll empliment this info
& let you know the outcome.

 

[73m819]

I just got an m920, put batteries in and fire it up, presto! tranny won't do anything. after fooling with it for 15 minutes it goes into gear and runs, then i put it in reverse
to turn around and I'm stuck in reverse. It actually goes into reverse when I put
it in forward gears. I have 16th gear in reverse! I'm sure it's from the truck sitting for years without running, probably an actuator stuck. If anyone has info that could help
I'd really appreciate it.

are you sure the motor is running in the right DIRECTION, I don't see how you can drive in reverse while in forward unless the motor is running backward

 

[R Racing]

I had thought of that , But said NAHH LOL I wonder if he had any air pressure ? Air compressor wont build much air running backwards lol

 

[Floridianson]

are you sure the motor is running in the right DIRECTION, I don't see how you can drive in reverse while in forward unless the motor is running backward

The reverse valve is not releasing or popping off allowing any forward gears to be slected.

 

[Floridianson]

Nice James. Copy cat.

Yea you just pissed I found him before U and just messing with you

 

[promodhotrod]

Assuming all the preliminary check are good, I would recommend going thru the pressure regulator adjustment procedure in your TM if your having any odd shifts. If the regulator is sticking , full of crud, or misadjusted you can easily damage an otherwise undamaged Cat. An ornery regulator can give you a real surprise going for 10th on the govenor and getting 6th. Also the shifter will love a nice dose of marvel mystery oil on occaision after you get it allserviced properly.
KJ

 

[RWG]

It take a lot of room to play with a truck that size.

 

[terraglide]

Forward HO!!! I cycled the tranny multiple times and got it to break loose, still gonna use the tool oil
in the air tank. It's shifting well, so I think it needs to be driven more than anything.
Again, Thank You all for the help. I'll keep ya posted.

Parker

 

[R Racing]

Great ! glad you got it going !!

 

[oldMan99]