Missing Data Plates

[mcrane]

Hey guys, new here and to 5 tons. I just purchased a M246 wrecker/tractor, problem is some crack head stole all the data plates off the dash. Can anyone take pictures of them or better yet anyone have a set they would let go of? It is an earlier one, has the continental R6602 gasser, I really need to know what all the transfer case levers do.

 

[NDT]

Bummer. Those plates will be very difficult to find. You will need to find someone parting one of these out. Try Memphis Equipment and Red River Parts. The TM for this truck should be in the TM section on this site and there will be pictures of the plates and operation instructions.

 

[NDT]

Yes see TM-9-2320-211-10 in the M39 series folder. I might warn you, as you start using this crane, you must follow the load chart to the letter, the hoist and boom hydraulics will lift far more than the boom and superstructure can handle.

 

[mcrane]

Thanks NDT, i downloaded the manual and found what the levers control. Now in hoping that i don't have a major transfer case issue, the truck wont do anything with the transfer case in low range. It was in low range and transmission in gear when i bought it, one i got it running it wouldn't move, i messed with all levers and finally pulled the hi/low lever up hard (had to move the passenger seat, then it drove. I was told by the previous owner that he had a wrecker pick it up from the rear and tow it to where it sits now. Hoping i don't have major t-case issues.

 

[NDT]

Definitely need to verify that the xfer hi low range shift rod is moving from detent to detent and it’s not a linkage issue. Almost nothing can be repaired inside the xfer from the outside and it’s no fun to pull it and split it open. Good luck.

 

[mcrane]

NDT, does it have a "neutral" between high and low range? Like if the shift rod isn't doing its job could it rotate in between hi and low like its in neutral without any noise? Also just to give back ground on me, I've been a light mechanic for 35 years, a heavy truck(OTR) mechanic for 15 years, and a yellow iron (heavy equipment) mechanic for 15 years, I've never messed with the transfer case of one of these trucks

 

[US6x4]

Eastern Surplus and TNJ Murray have a good selection of data plates so check them out also

 

[Mullaney]

NDT, does it have a "neutral" between high and low range? Like if the shift rod isn't doing its job could it rotate in between hi and low like its in neutral without any noise? Also just to give back ground on me, I've been a light mechanic for 35 years, a heavy truck(OTR) mechanic for 15 years, and a yellow iron (heavy equipment) mechanic for 15 years, I've never messed with the transfer case of one of these trucks

.
Yes. There is a neutral between High and Low on the Transfer Case. And like @NDT mentioned, possibly disconnect the linkage and shift the "TC" from low to neutral to high "by hand". Often times the seat or something like the floor pan can keep you from shifting.

 

[NDT]

Here is what you are working with, the T-138 transfer case. The red circled rod is what has to move in and out to shift. It does not turn. There is a small square access cover which you might be able to remove and send in an inspection camera, I have never done this.

 

[mcrane]

Thanks guys, i now have a direction to look as soon as i get it home.