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 TM 5-2410-233-23
THEORY OF OPERATION - CONTINUED
0003 00
ELECTRICAL SYSTEM - CONTINUED
Circuit Breaker. A switch that opens the battery circuit if the current in the electrical system goes higher than that for
4.
winch the switch is rated. When the circuit is open, no current will flow through the electrical system.
5.
Battery Disconnect Switch. A switch that is controlled by the operator. When it is in the OFF position, the battery cir-
cuit will be open so that no current is flowing through the electrical system.
6.
NATO Slave Receptacle. Use by operator or maintenance personnel to slave start tractor.
DOZER HYDRAULIC SYSTEM
1.
Blade Control Valve. This valve is connected mechanically to the blade control lever. The valve directs the flow of
pressurized oil in response to the movement of the control lever.
2.
Tilt Cylinder. This cylinder is on the left side of the machine. It is controlled by the blade control lever. When the lever
is moved to the right, pressurized oil from the hydraulic tank causes the cylinder to extend. Moving the lever to the left
causes the cylinder to retract.
3.
Lift Cylinders. These are two cylinders which are controlled by the blade control lever. When the lever is pushed for-
ward, pressurized oil causes the cylinders to extend and lower the blade. When the lever is pulled back, the cylinders
retract and raise the blade.
4.
Hydraulic Tank. This is the reservoir for the oil which controls the movement of both dozer and ripper cylinders.
RIPPER HYDRAULIC SYSTEM
1.
Ripper Control Valve. This valve is located inside the hydraulic tank and is connected mechanically to the ripper con-
trol lever. This valve directs the flow of pressurized oil to the cylinders in response to the movement of the ripper control
lever.
2.
Lift Cylinders. These are two cylinders which are controlled by the ripper control lever. When the lever is moved to the
left, pressurized oil causes the cylinders to extend and lift the ripper. When the lever is moved to the right, the cylinders
retract and lower the ripper.
3.
Hydraulic Tank. Oil to control ripper movement is stored in the same hydraulic tank as the machine's hydraulic system.
WINCH HYDRAULIC SYSTEM
1.
Reservoir. The reservoir is integral to the winch. It contains oil which is used for winch lubrication and hydraulic con-
trol systems.
2.
Pump. The pump is driven directly off the engine, and is responsible for the circulation of the oil. The pump is located
under the floor plates in the operator's station, on the right side.
3.
Magnetic Strainer. Oil is pulled from the reservoir and goes through the strainer before it enters the lubrication system
and the hydraulic control system. The strainer removes harmful large metallic particles from the oil, which could cause
damage to the systems.
4.
Filter. Removes smaller harmful particles from the oil before the oil returns to the reservoir.
5.
Control Valve. This valve responds to the winch selector lever. When you move the lever, the valve sends pressurized
oil to engage or disengage directional clutches, which permit the drum to turn.
6.
Drum. The gears which turn the drum are powered by the transmission. The direction the drum turns is controlled by
moving the winch selector lever.
END OF WORK PACKAGE
0003 00-6
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