M936a2...got one! Few questions though.

[usmctopgun]

Picking it up next week, no EUC required! Engine ran fine when I checked it, but it does have a broken torque rod/dog bone. Already got a brand new spare in hand from SECo in Augusta, GA. Difficult swap? Plan to just drop the outriggers, reallign the axle, and bolt it on.

Also, anything else I need to look over before bringing here home? Its only a 30 mile drive back from RAFB.

Thanks!

 

[R Racing]

Thats a air brake truck. So I would fire it up and make sure you have no air leaks. Also on some a2s , you need to back up just a bit to get the air brakes to release before driving forward after its been parked. I saw it on Bruces truck (Bkubu )

 

[mdmorganwife]

I wouldn't drive it with those brake diaphrams broke off.

 

[Recovry4x4]

I'm not sure how much time GL will give you but I would humbly suggest you bring an assortment of jacks, stands and cribbing. Dropping the outriggers may just take up all of the time GL will give you. Lets just say they are not user friendly unless you bring a person to drop each one. What is wrong with the dogbone? Bad bushing or completely broke? If the bushing let go I would jack it back in place and secure it there just to get it off site. I've driven many hundred miles in this manner.

 

[Nonotagain]

Under normal circumstances I would agree with driving it away for repairs, but the M936 weighs over 35,000 lbs.
I wouldn't trust chaining up an axle except to get the truck on a trailer or out of the road.
If the brake diaphragms are broke off with the dog bone issue, get it towed off the lot and effect repairs in a location where it's safe to leave the truck and have access to additional resources if required.

My .02 cents worth.

 

[73m819]

OUTRIGGERS are not designed to jack up the the wrecker, but to provide a wide stable foot print for lifting, the outriggers are basically screw jacks.
When I had to change the UPPER dog bones on the 819, I dropped the right out riggers, set them tight to support the bed and frame when i pulled the tires, u-bolts, walking beam (very heavy) ect., still needed a bunch of jacks and blocks.

 

[73m819]

Under normal circumstances I would agree with driving it away for repairs, but the M936 weighs over 35,000 lbs.
I wouldn't trust chaining up an axle except to get the truck on a trailer or out of the road.
If the brake diaphragms are broke off with the dog bone issue, get it towed off the lot and effect repairs in a location where it's safe to leave the truck and have access to additional resources if required.

My .02 cents worth.

Not talking about chaining up a axle but putting the DB back in place, then uesing a chain and binder to hold it there, this was the standard TEMP fix for logging trucks (for that matter most trucks) years ago, this fix got the truck back on the road, unloaded, and back to the yard, where most likely a bar was welded across the male end to keep the DB in place till there was time and parts to do the correct fix.

 

[usmctopgun]

I wouldn't drive it with those brake diaphrams broke off.

Yeah I forgot about those, thanks for the reminder. Gonna resurvey it in the morning and make a call to fix or tow. Thanks ladies and gents.

 

[usmctopgun]

What is wrong with the dogbone? Bad bushing or completely broke?

It's snapped in half

 

[R Racing]

Under normal circumstances I would agree with driving it away for repairs, but the M936 weighs over 35,000 lbs.
I wouldn't trust chaining up an axle except to get the truck on a trailer or out of the road.
If the brake diaphragms are broke off with the dog bone issue, get it towed off the lot and effect repairs in a location where it's safe to leave the truck and have access to additional resources if required.

My .02 cents worth.

I would agree with Gregg . the truck is unknown to you and for safety of yourself and others its best to get it home and do a good overall survey of the truck. Its not worth the gamble if there is any unseen issues. and some GL lots limit you on time for repairs and loadouts . So having it towed is a win win and your not pissing of your GL personal.

 

[Recovry4x4]

It's snapped in half

Yikes! Makes you wonder what happened to warrant a break like that!

 

[spicergear]

 

[usmctopgun]

Yeah me too!

 

[MidnightDuramax]

 

[usmctopgun]

Snapped right in 2!

 

[Recovry4x4]

I think I can explain how that one broke. With that back bushing being loose it allowed play within that joint. Any type or crisis brake may have given it enough stored energy to snap the dogbone. Luckily, that is probably the easiest dogbone to replace on the truck.

 

[usmctopgun]

We think we pretty much figured how it happened this morning though. Will post more pics later, but it looks like they backed into something which put pressure on the backside of the bushing literally pushing it off, dogbone falling down, and the continued backing up put the bone in a bind. There was damage around that area to suggest that anyways. It broke, axle moved, which resulted in breaking off both of the canisters as well along with severing the air lines. Probably will never know for sure though.

Somebody swiped the batteries out of it since last time we were there, but we got the engine fired up this morning.

Anyone have any leads on a pto transfer pump for an 936? I bet it won't be cheap, and this one is gone, lol

 

[usmctopgun]

Also, anyone have a link to a parts manual for this beast? I found a TM. Obviously there wasn't one on the truck, and google hasn't been much help.

 

[emr]

Not talking about chaining up a axle but putting the DB back in place, then uesing a chain and binder to hold it there, this was the standard TEMP fix for logging trucks (for that matter most trucks) years ago, this fix got the truck back on the road, unloaded, and back to the yard, where most likely a bar was welded across the male end to keep the DB in place till there was time and parts to do the correct fix.

This works well and will work for sure...

 

[usmctopgun]

Got it back today without a hitch after swapping out all the broken parts. Will post pics tomorrow.