TM 5-3805-280-24-1
HYDRAULIC
OIL COOLER
17
OIL TANK
BYPASS VALVE
SUPPLY OIL
3
8
1
TO
11
PILOT OIL
FRONT PUMP
RIGHT
TO
TRAPPED OIL
RIGHT
CONTROL
PROPEL
3A
CONTROL
BUCKET CYLINDER
PRESSURE SENSOR
MOTOR
RETURN OR
BUCKET
VALVE
PRESSURE
FLOW
REAR PUMP
BOOM
FREE OIL
15
CONTROL
CONTROL
REDUCED
20
VALVE
PRESSURE SENSOR
LEAKAGE
NOTE: NUMBERS 13 THRU 20 ARE
FRONT
VALVE
TO
USED TO SHOW CONNECTIONS
PUMP
SWING
TO THE HOSE REEL AND AUXILIARY
CONTROL
PILOT
MOTOR
HYDRAULICS COMPONENTS.
VALVE
PUMP PUMP
MAKE-UP
19
PORT
REGULATOR
ARM II
PROPEL
RIGHT
BUCKET
BOOM I
PRESSURE
PROPEL
SWITCH
LEFT
CONTROL
FROM
VALVE
PILOT
FLOW
PRESSURE
COMBINER
BOOM CYLINDERS
16
REGULATING
VALVE
SEVRO
VALVE
FRONT
PISTON
PRESSURE
DIG
PUMP
SENSOR
PRESSURE
4
12
PROPEL-BOOM
7
SWITCH
DOWN SELECTOR 2
6
TO SWING
VALVE
10
13
SYSTEM
PARK BRAKE
RELIEF
RELEASE
VALVE
VALVE
FLOW
CONTROL
VALVE
SEVRO
REAR
TO SWING
REAR
PISTON
PUMP
PARK BRAKE
PUMP
CONTROL
RELEASE
PROPEL
ARM CYLINDER
VALVE
VALVE
SPEED
N
PUMP
POWER
CHANGE
SENSOR
LEFT
AUXILIARY
SWING
ARM I
BOOM II
ARM
REGULATOR
BOOST
SPEED
SOLENOID
PROPEL
REGENERATIVE
SOLENOID
SENSING SOLENOID
VALVE
VALVE
SOLENOID VALVE
VALVE
ARM
SG
SI
SD
SC
REDUCED
LEAKAGE
TO
VALVE
TO
FROM
SWING
LEFT
PILOT
MOTOR
ARM
PROPEL
SHUT-
REGENERATIVE
MOTOR
9
OFF
VALVE
3A
14
5
VALVE
RESTRICTION
VALVE
OIL
SOLENOID VALVE
COOLER
MANIFOLD
HYDRAULIC PUMP AND CONTROL VALVE SCHEMATIC
T121641
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