TM 9--2520--215--34
0005 00--1
THEORY OF OPERATION
0005 00
THIS WORK PACKAGE COVERS:
Equipment Operation and Description
HYDRAULIC SYSTEM
GEAR PACKAGE
SECTION A--A
OIL LEVEL INDICATOR
BREATHER
AIR
AIR
OUTPUT GEAR
COMPARTMENT
OIL LEVEL
A
A
SHIFT
INHIBITOR
AIR
OIL LEVEL
LEFT APPLY
BRAKE COOLANT PUMP
TWO--SECTION
OUTPUT DRIVEN PUMP
OUTPUT REDUCTION
GEAR ASSEMBLY
STEER VALVE
BODY ASSY
STEER CLUTCH COOLANT
LEFT--STEER CLUTCH
SELECTOR
VALVE
RELIEF VALVE
(50 PSI)
FILTER
RIGHT APPLY
TO REVERSE--RANGE CLUTCH
TO LOW--RANGE CLUTCH
PUMP
TURBINE
CONVERTER
TO COOLER
FROM COOLER
FILTER
GOVERNOR
PRESSURE
SECTION B--B
STEER
DRIVE
SHAFT
LUBRICATION PRESSURE
REGULATOR (5--30 PSI)
ENGINE
MANIFOLD
VACUUM
CONNECTION
GOVERNOR
PITOT TUBE
RIGHT--STEER CLUTCH
B
B
R1
23 N
TO INTERMEDIATE--RANGE CLUTCH
OUTPUT DRIVEN
PRESSURE PUMP
TO RESERVOIR
CONVERTER
LOCKUP TIMER
VALVE
INPUT DRIVEN
PRESSURE PUMP
R F
R
R
F
F
COOLER BY--PASS
VALVE (80 PSI)
STEER CLUTCH
PRESSURE REGULATOR
VALVE (105 PSI)
RELIEF VALVE
(50 PSI)
MAIN--PRESSURE
REGULATOR
VALVE (120--180
PSI IN NEUTRAL,
HIGH AND
INTERMEDIATE)
Hydraulic System--Schematic View
OIL RESERVOIR
TO
LUBRICATION
SYSTEM
CONVERTER
PRESSURE REGULATOR
VALVE (80 PSI)
SCAVENGE
PUMP
TWO--SECTION
INPUT
DRIVEN PUMP
TO
LEFT BRAKE
TO
RIGHT BRAKE
AIR VALVE
(CLOSED
ON BRAKE APPLY)
TO HIGH--
RANGE
CLUTCH
TO
LOCKUP
CLUTCH
CONVER--
TER
LOCKUP
RELAY
VALVE
