Bb aa, Hydraulic system, C. hydraulic testing - dual joysticks – Lull 944E-42 Service Manual User Manual

Page 122: Fd d b, E(8), 1b 1a

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Hydraulic System

8-6

944E-42

c. Hydraulic Testing - Dual Joysticks

MU6830

A

4

6 5

7

G

3

8

9

C

FRONT STEERING

CYLINDER

ATTACHMENT TILT

CYLINDER

REAR STEERING

CYLINDER

FRONT AXLE

REAR AXLE

HYDRAULIC

RESERVOIR

PUMP

MAIN

CONTROL

VALVE

LIFT/LOWER

CYLINDER

LEFT

SLAVE

CYLINDER

EXTEND/

RETRACT

CYLINDER

RIGHT

SLAVE

CYLINDER

POWER

STEERING

UNIT

OPERATOR'S CAB

FRAME SWAY

CYLINDER

FTR

FTB

AUXILIARY

HYDRAULICS

BRAKE

VALVE

P

P

A

A

T

STABILIZER

CYLINDER

FTR V

P T

G1

ACCUMULATORS

HYDRAULIC

OIL COOLER

E

R

R

E

R

E

TRANSFER

CYLINDER

Ш .041

Ш .048

1

2

3

4

T

P

1

2

3

4

T

P

R

E

R

E

R

E

R

T

P

L

LS

ACCUMULATOR

CHARGE/SECONDARY

FUNCTION VALVE

LS

DRAIN

P1

LSG

ACR

SW

P

ACF

EF

CF

PIL

PB

PBG

PPG

SW

PILOT SELECT

VALVE

P1

P2

B1
B3
A1
A3

STEER

SELECTOR

VALVE

P

R

1

2

DRAIN

FRONT JOYSTICK

REAR JOYSTICK

FRAME SWAY

JOYSTICK

P

T

2

1

BRIDGE DRAIN

OUTLET

INLET

TANK

1b

1a

F

D

D

B

RV

PR

10

2

CHECK VALVE

85 PSI (5,9 bar)

RETURN FILTER

25 PSI (1,7 BAR)

BYPASS

CHECK VALVE

BB

AA

E

(8)

ATTACH

TILT

FRAME

EXT/RET

LFT/LWR

AU

X

TRANS

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