Parking Brake

The working stroke of the towbar is approximately two inches. Beyond

this point, the master cylinder piston by-passes a relief slot,

allowing the brakes to release. This arrangement permits free backing

of the vehicles equipped with brakes that are equally effective in

either direction. A cable operated emergency breakaway feature is

incorporated into the inertia activator. The cable is attached to the

towing vehicle and, in event of breakaway from towing vehicle, pulls

the cam-lever forward forcing the push rod into operating position and

maintaining pressure on the brake system to stop the Mobilizer.

Parking Brake

When the brake lever assembly is engaged, tension is applied to the

two brake cables and the front brakes are mechanically actuated. When

the handle assembly is disengaged, the tension on the brake cables

is relaxed and the brakes are released.

High Pressure Hydraulic Systems

When the hydraulic pump is operated with the control valve in

the "PUMP" position, fluid flows from the pump through the

control valve to both hydraulic cylinders, thereby extending

the cylinders. This in turn lowers the wheels to the ground

and raises the shelter to which the mobilizer is attached to.

When the control valve is placed in the "RELEASE" position,

fluid flows from the hydraulic cylinders through the control

valve back into the pump reservoir, permitting the wheels to

retract and lower the shelter to the ground. The operating

speed of the system may be controlled by the control valve;

which can be used to adjust the rate of fluid flow, which

determines the speed at which the Mobilizer will allow its

payload to descend to the ground.

Operating Instructions

Position hydraulic pump handle in pump. Place control valve in

"PUMP" position and pump each dolly to raised position. Lock

strut in place by tightening wing nut. Control valve should

normally be left in "PUMP" position to assist in carrying the

shelter load.