TM-9-2320-285-24-1
TRUCK TRACTOR, YARD TYPE, 43,500 LB GVW, DED, 4X2, ARMY MODEL M878A1
TECHNICAL MANUAL; ORGANIZATIONAL, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
OCTOBER 1985
TM-9-2320-285-24-1 - Page 24 of 987
TM 9-2320-285-24-1
1-31.
CAB TILT HYDRAULIC SYSTEM
1.
HYDRAULIC PUMP.
Mounted at right hand side of vehicle, supplies and regulates flow of transmission fluid to
cab tilt cylinder and hydraulic latches.
2.
HYDRAULIC CYLINDER.
Mounted to frame and cab deck, raises and lowers cab deck.
3.
HYDRAULIC LATCHES.
Controlled by cab tilt hydraulic pump; engage hold down brackets mounted on cab deck
to secure cab deck at normal operating position, or disengage hold down brackets to allow cab deck to be tilted.
1-32.
GAGES
1.
VOLTMETER.
Indicates electrical system voltage.
2.
WATER TEMP GAGE.
Indicates temperature of engine coolant; electrically connected to water temperature
sender.
3.
OIL PRESS GAGE.
Indicates engine lubricating oil pressure; electrically connected to oil pressure sender.
4.
TACHOMETER.
Indicates engine speed in rpm; electrically connected to sender unit installed on drive assembly
at engine rear.
5.
SPEEDOMETER.
Indicates vehicle speed and accumulated mileage; connected by cable to transmission-
mounted gear assembly.
6.
FUEL GAGE.
Indicates fuel tank level; electrically connected to fuel level sender.
7.
AIR PRESS GAGE.
Indicates air system pressure; pneumatically connected to air system tee.
8.
AMMETER.
Indicates rate of battery charge or discharge.
9.
HOURMETER.
Indicates accumulated engine operating time; electrically operated, advances when ignition switch
is turned to on position.
1-15/(1-16 blank)
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