"How to get a HET in life..." - M1070 Acquisition thread

[fuzzytoaster]

Yesterday I helped a friend pull his auction win M819 tractor wrecker home. The HET handled it just fine. The 819 is cool! It'll be a neat restoration.

Thank you for saving that one. I was watching it close and had to resist saying anything on here before it closed. Do tell your friend to take more pictures and video, they are a neat truck!

 

[Carlo]

I used a set of towing lights that I have. Since the cable for the lights has a military 24v 12 pin connector and the HET only has a commercial 12v 7 pin connector by the pintle hitch, I had to run the cable up to the military connector by the fifth wheel. They work very well.

I've seen these towing lights on stone web sites there in the USA. I did not know they had 24 volt. I will check into these.
Thanks Matt!

 

[buggyman]

I’m just a country boy and was wondering about pulling animplement about 5 mph. I would really appreciate some information on thesetrucks. I need to know how fast these will go in low range for 1[SUP]st[/SUP] and2[SUP]nd[/SUP] gear? Thanks, Paul

 

[goodguyzy]

I think it would work but the fuel cost would soon out pace what a farm tractor would cost.

 

[Castle Bravo]

I’m just a country boy and was wondering about pulling animplement about 5 mph. I would really appreciate some information on thesetrucks. I need to know how fast these will go in low range for 1[SUP]st[/SUP] and2[SUP]nd[/SUP] gear? Thanks, Paul

2100 RPM in 1st gear is 9 mph
2100 RPM in 2nd gear is 14 mph

 

[buggyman]

Thanks Matt
Is this in low range?
Paul

2100 RPM in 1st gear is 9 mph
2100 RPM in 2nd gear is 14 mph

 

[DrillerSurplus]

I'm sure that is high range, I took a quick look at TM & couldn't find a table for low range or what the high/low ratios were so you could figure it out. I did see where the TM repeatedly warned about not exceeding 1200 rpm when in low range, so it would be SLOW.

Thanks Matt
Is this in low range?
Paul

 

[wreckerman893]

I’m just a country boy and was wondering about pulling animplement about 5 mph. I would really appreciate some information on thesetrucks.

You are aware that the HETT has the turning radius of the Queen Mary compared to a tractor...right?

 

[buggyman]

Well I'm sure it's no worse than my grader
Thanks, Paul

You are aware that the HETT has the turning radius of the Queen Mary compared to a tractor...right?

 

[DrillerSurplus]

This made me curious about how the HET compares to something like a Kenworth T800 with a similar wheel base and to other mv.

The TM_9-2320-360-10 lists a 67.9' turning radius for HET without trailer, wheel base appears to be 215". The Kenworth book didn't list any tridems, but heavy tandems with 220" wheelbase had turning radius of 44'. I thought maybe the M920 would be better with the airlift axle, but it is actually worse, so the M1070 was a pretty big improvement.

The information below is from a 2011 SS thread posted by runk http://www.steelsoldiers.com/showthread.php?68712-M916-M920-wheelbase The information available on this site is amazing! I just added a couple of dimensions for the Kenworth & HET.

from TM 9-2320-273-10

Minimum turning diameters, curb to curb, are listed below:
M915 53.5 feet (16.31 m)
M916 80.0 feet (24.4 m)
M917 89.5 feet (27.3 m)
M918 80.0 feet (24.4 m)
M919 89.5 feet (27.3 m)
M920 89.5 feet (27.3 m)
M1070 67.9 feet
T800 44.0 feet

DIMENSIONS
Length (overall, less pintle hook and lifting shackle)
M915 268.50 in. (6.82 m)
M916 294.30 in. (7.48 m)
M917 350.60 in. (8.90 m)
M918 350.60 in. (8.90 m)
M919 374.40 in. (9.51 m)
M920 319.30 in. (8.11 m)

Width (overall)
ALL 96.75 in. (2.46 m)

Height
M915 134.63 in. (3.42 m) (over stack – empty)
M916 142.00 in. (3.61 m) (over stack – empty)
M917 141.00 in. (3.6 m) (overall)
M918 142.00 in. (3.61 m) (over stack – empty)
M919 142.00 in. (3.61 m) (over stack – empty)
M920 142.00 in. (3.61 m) (over stack – empty)

Height (reduced, no load)
M915 114.63 in. (2.91 m) (over horns –empty)
M916 128.00 in. (3.25 m) (over horns – empty)
M917 Not reducible
M918 128.00 in. (3.25 m) (over horns – empty)
M919 128.00 in. (3.25 m) (over horns – empty)
M920 128.00 in. (3.25 m) (over horns – empty)

Ground Clearance (under rear walking beam bracket) (empty)
M915 10.25 in. (26.03 cm)
M916 11.62 in. (29.51 cm)
M917 12.00 in. (30.48 cm)
M918 11.62 in. (29.51 cm)
M919 12.00 in. (30.48 cm)
M920 11.62 in. (29.51 cm)

Wheelbase
M915 168.25 in. (4.30 m)
M916 186.00 in. (4.72 m)
M917 211.00 in. (5.36 m)
M918 186.00 in. (4.72 m)
M919 211.00 in. (5.36 m)
M920 211.00 in. (5.36 m)
M1070 215 in.
T800 220 in.

 

[Castle Bravo]

M1070 HET with M911 HET

 

[NDT]

Thanks for posting the two side by side. I think this is the only photo of the two generations ever taken. Quick question, why does the SO have a huge piece of flex coming off the stack?

 

[Castle Bravo]

Thanks for posting the two side by side. I think this is the only photo of the two generations ever taken. Quick question, why does the SO have a huge piece of flex coming off the stack?

I don't know, I've wondered about it every time I've seen the truck.

 

[Bighurt]

Thanks Matt, does that truck just sit out on display or does the Sheriff ride it around? LOL

Doesn't look like it in the the picture but a M1070 will tow a M747 trailer with the landing gear kicked back. First question I asked Soni when he go his.

 

[MO MV man]

I'm guessing the flex tube is to keep exhaust soot from getting on the tank?

Thanks for posting the two side by side. I think this is the only photo of the two generations ever taken. Quick question, why does the SO have a huge piece of flex coming off the stack?

 

[Castle Bravo]

Thanks Matt, does that truck just sit out on display or does the Sheriff ride it around? LOL

It just sits there, rotting in the sun. A lot of the tires are very cracked.

Doesn't look like it in the the picture but a M1070 will tow a M747 trailer with the landing gear kicked back. First question I asked Soni when he go his.

Yeah, I think Soni said you have to remove the mudflaps on the 1070.

 

[whiskey357]

uncle sugar sold to many HETS at one time...going to war with WENDYS going to flood their parking lots with used trailers hehehehe

 

[patracy]

uncle sugar sold to many HETS at one time...going to war with WENDYS going to flood their parking lots with used trailers hehehehe

 

[Bighurt]

It just sits there, rotting in the sun. A lot of the tires are very cracked.

Such a shame, rig like that should be preserved and make the rally circuit.

Yeah, I think Soni said you have to remove the mudflaps on the 1070.

That's a correct statement, although if memory serves he made it seam the chore to fold the gear all the way back. The flap removal is almost SOP by comparison.

 

[Castle Bravo]

I came across a deal on some JW Speaker 8700 headlights that I could not pass up. I had some Trucklite LED headlights ready to put into the HET, but was waiting because I hadn't had time yet to make the necessary bracket to kick the headlight guards out. The JW Speaker headlights do not need the bracket and I think they look cool, so I got some. When it gets dark, I'll drive around and see if they're aimed correctly.