(f) This system is also applicable to the 25 Ton Truck, Mounted Hydraulic Crane and other vehicles,
commercial or modified commercial, in troop units.
Method 2. From the Body Hoist PTO Pressure Protection Valve:
(a) Locate the dump body hoist PTO pressure protection valve under the cab. Tracing the system air flow, as
verified by the valve markings, determine the outlet or downstream port.
(b) Install a T-fitting, a shut-off cock, and a gladhand to the PTO pressure protection valve outlet. Plumb with
reuseable fittings and flexible hose.
(c) The tire inflation hose, gage, and chuck of the Medium 4x4 Tractor is also applicable for use of this method.
c. Users intending to implement this -suggestion are cautioned not to use the Military Design truck fleet quick-
disconnect fittings in lieu of the SAE J318 air brake gladhand. The air brake gladhand has a much greater air flow
capacity and is a readily available, industry standardized part.
d. Of the two methods (Method 1 or Method 2) described in lb., Method 1 should be considered much more
favorable than Method 2. The CCE dump truck has a heavy duty brake system, including a water-cooled, engine
lubricated, gear-driven 12 CFM air compressor, that will facilitate tire inflation use without overheating. The take-off from
the first (wet) air brake reservoir will provide the volume of air necessary to inflate not only the CCE dump truck tires, but
also the tires of earthmoving and construction equipment at the same Job sites where the CCE dump truck is operating.
Method 2 (using the take-off from the hoist PTO circuit) may be lower in initial cost (since a new pressure protection valve
is not required) but it has the major disadvantage of a low air volume due to line restrictions and an unacceptably long
inflation time to inflate large size tires.
e. As a bonus, the Method 1 tire inflator may also be used to recharge all components of the CCE dump truck's air
brake system by slave air pressure hose from another vehicle having air pressure.
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