FREE-FLOW VALVE TOOL - TM-5-5420-278-10

COMMON BRIDGE TRANSPORTER CONTROLS AND INDICATORS (Contd) - TM-5-5420-278-10_73

COMMON BRIDGE TRANSPORTER CONTROLS AND INDICATORS (Contd) - TM-5-5420-278-10_75

TM-5-5420-278-10 M85 Tank Chassis Transporting: for Bridge Armored-Vehicle-Launched Scissoring Type Class 80 Manual
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TM 5-5420-278-10 0008 00 0008 00-6 COMMON BRIDGE TRANSPORTER CONTROLS AND INDICATORS (Contd) FREE-FLOW VALVE TOOL — This tool is located in control valve cabinet and is used to manually lock the free-flow valve in the closed position prior to manual operation of the directional control valves. SOLENOID TOOL — This tool is located in control valve cabinet and is used to manually depress the solenoid buttons on the directional control valves for LHS operation. HOUR METER — The hour meter is an electric clock mounted on the main junction box at the top of the main manifold support frame. The hour meter records the total number of operating hours on the LHS fluid system for maintenance purposes. MAIN FRAME SOLENOID BUTTONS — The solenoid button at each end of the top directional control valve which opens or closes the valve when manually depressed with the aid of the solenoid tool. The top directional control valve on the main manifold controls the directional flow of fluid to the cylinders to raise and lower the LHS main frame, and is intended to be manually operated only when electric power is lost to the solenoids. HOOK ARM SOLENOID BUTTONS — The solenoid button at each end of the center directional control valve which opens or closes the valve when manually depressed with the aid of the solenoid tool. The center directional control valve on the main manifold controls the directional flow of fluid to the cylinders to raise and lower the LHS hook arm, and is intended to be manually operated only when electric power is lost to the solenoids. WINCH SOLENOID BUTTONS — The solenoid buttons at each end of the bottom directional control valve which activates the valve when manually depressed with the aid of the solenoid tool. The bottom directional control valve on the main manifold controls the directional flow of fluid to the winch motor to pay winch cable in and out, and is intended to be manually controlled only when electric power is lost to the solenoids. FREE-FLOW VALVE — The free-flow valve is located on the main manifold adjacent to the main relief valve, and is electrically activated by a solenoid. When activated, the free-flow valve closes to divert fluid pressure to the directional control valves for operation of the LHS main frame, hook arm, and winch. Should electric power to the solenoid be interrupted due to a malfunction, the valve must be manually held in the closed position with the free-flow valve tool. W V U T S R Q

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