Hydraulic pressure limit switch

Page Title: Hydraulic pressure limit switch
Back | Up | Next

Web
www.tpub.com

Information Categories

....

MIL-V-62008B(AT)

3.6.13.14 Travel locks. The turret with turret lock engaged shall be prevented from

being traversed in any direction. With the gun external travel lock and the turret lock disengaged

and the manual traverse handle in detent, the turret and gun control system shall act as a holding

device for the gun and turret when the vehicle is in motion.

a. With the vehicle moving at a rate of 5 mph in low gear on a horizontal hard

surface road, and with the elevation and traverse power switch off, the turret

slippage shall not exceed 10 mils in traverse when subjecting the vehicle to a

full steer 90 turn in either direction and coming to a sudden stop.

b. With the vehicle moving at a rate of 20 mph on a horizontal, hard surface road

and with the elevation and traverse power switch on or off, the gun slippage

shall not exceed 5 mils in elevation or depression when stopping the vehicle

within 60 feet from the point of vehicle brake application.

c. The elevation hand crank shall not show any movement by turret induced

reaction when vehicle is in motion as specified in (a) and (b) above, or by

power operation of the turret and gun control systems.

3.6.13.15 Hydraulic pressure limit switch. When power traversing the turret at a rate not

to exceed 65 mils per second, the hydraulic pressure switch shall activate the hydraulic control

powerpack motor at a control system pressure gage reading of 880 to 1010 psi. With gunner and

commander power and manual controls in neutral position, the hydraulic pressure switch shall

deactivate the hydraulic powerpack motor control system pressure as indicated on the gage

between 1150 and 1500 psi.

3.6.13.16 Elevation shut-off valve. With elevation and traverse power switch on, the

movement of the main gun shall not exceed 2 mils in the elevation axis when the gunner power

control handle is tilted forward and backward to its stop in either direction without actuating the

palm switch in the gunner power control handle.

3.6.13.17 Turret traverse brake. With the elevation and traverse power switch on, and

with the turret stationary, there shall be no traverse movement of the turret when the gunner

power control handle is turned to its stop in a clockwise or counterclockwise traverse direction

without actuating the palm switch in the gunner power control handle.

3.6.13.18 Hydraulic fluid.

3.6.13.18.1 Turret and gun control cleanliness. When all the requirements of the turret

and gun control system have been met, and with hydraulic fluid discharged from the 2 gallon

main accumulator and from the 1/2 gallon equilibrator accumulator, the hydraulic fluid in the

control powerpack reservoir and the equilibrator charging manifold reservoir shall contain no

more than 0.1 percent water contamination level and shall not exceed that shown in table IV.

Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business