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M1078 Fluids questions for Fire Department

Mgfire23

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My fire department just received a M1078 through a forestry service grant to be converted into a fire truck.

1) I discovered two hydraulic lines that run to the passenger side front axle housing on the top had sheared off at the fittings causing fluid to leak when I test drove it. I am trying to figure out the fluid that goes into there and where it is added.

2) what type of fluid is it? I looked in TM but it is in military spec.?

3) is there a place to get military fluids? or figure out civilian equivalents to the mil. fluids.?

4) I am trying to find a 12v access point to wire the radio, siren, light bar to, any ideas?

Thanks, Ill post pictures when it is all done with its new paint job.
 

NDT

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Sounds like what you are talking about is the frame mounted hydraulic cylinder that is used to make the truck "kneel" to fit into aircraft. Mine are broken off too. The lube order calls for hydraulic fluid, which is basically AW-32 or universal tractor fluid. This is added at the air-hydraulic power unit in between the cab and bed. I would wire the 12 volt equipment directly to the battery. Good luck with the conversion and let us know how the truck does with the water load.
 

Mgfire23

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The lines are connected on the top of the passenger side axle housing about 18" to the center of the truck from the wheel. The fittings were 45 degree about 1/4" x 3/8".

The he plan is to eventually have a poly tank the size of the whole bed keeping the center of gravity low
 

NDT

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Well there are no hydraulic lines to the axle, so it must be a vent line. 85W-90 gear lube goes in the axle.
 

ke5eua

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Baton Rouge (Central), LA
The lines are connected on the top of the passenger side axle housing about 18" to the center of the truck from the wheel. The fittings were 45 degree about 1/4" x 3/8".

The he plan is to eventually have a poly tank the size of the whole bed keeping the center of gravity low
I second the baffling of the tank, even a poly tank the size of the bed not baffled can slosh pretty good and I know from first hand experience how easy those trucks are to spin. Luckily it didn't roll, just did a really awesome 360 on route tampa in Iraq causing my OIC to need a change of undies.
 

Oxyacetylene

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Stoneville, NC
On #4, you could wire directly to the batteries. There are binding posts in the fuse panel / breaker area that you could use for low power accessories. They are on the left hand side. I used those to hook up a cigarette lighter outlet in mine, but I am not sure what amperage they are rated for.
 
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