Figure 2. Main Winch and Spade Assembly--Left-Rear View.
The spade is hydraulically actuated by means of two single-end rod, double-acting spade cylinders (Figure 1). These cylinders
are located in the hull of the vehicle beneath the crew compartment; one on each side of the main winch.
Main Winch Combination Control Valve
The main winch combination control valve (Figure 2) is mounted on top of the hydraulic motor manifold. It is a three-position,
center open valve, and serves to direct hydraulic flow through the manifold to the hydraulic motor, thus determining the direction
of the motor rotation.
Cable Level Winder Assembly
The cable level winder assembly (Figure 2) is mounted on the inside of the vehicle hull, directly beneath the main winch cable
guide plate. The assembly is synchronized with main winch operation and ensures even winding and unwinding of the main
winch cable. The cable level winder assembly consists of a traversing cylinder; a stationary, double-end piston rod; a cable level
winder valve, and mechanical linkage. As the cable is reeled in, it exerts a force on either the right or the left side of a guide
through which it passes. This force is transmitted to a lever which positions the cable level winder valve. The valve then directs
hydraulic pressure to either the right or left side of the traversing cylinder, causing it to move and wind the cable evenly.