Reference diagrams – Lull 1044C-54 Series II Service Manual User Manual

Page 68

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Reference Diagrams

4-2

31200079

Diagram 4-1 — Mid-Inlet Hydraulic Schematic (cont’d)

(OPTION)

MV0420

3150

PSI

L.H.

OUTRIGGER

R.H.

OUTRIGGER

FRAME

TILT

TRANSFER

CARRIAGE

TILT

AUX. 1

A

A

A

A

A

A

B

B

B

B

B

B

2800

PSI

A3

A4

B4

B3

BOOM HOIST

TELESCOPE

TILT CYLINDER

A

A

B

REAR CARR.

BOOM

A2

SELECTOR

MODE

STEER

TRANSFER CYLINDER

REAR BRAKES

REAR STEER CYL

FRAME TILT

B5

A5

P

T

A1

B1

A6

B6

A6

B6

BOOM HOIST CYLINDER

C.B.

VALVE

TILT CYLINDER

REAR CARR.

BOOM HOIST CYLINDER

C.B.

VALVE

2800

PSI

P

B2

B

A

AUX. 2

(OPTION)

3000

PSI

B

NOTE: HUSCO VALVE ASSEMBLY IS ORIENTATED

SO THAT THE "A" PORTS ARE FRONT

FORWARD OF THE "B" PORTS.

S4

B

STABILIZER CONTROL VALVE

A8

B8

A7

B7

REAR AXLE STABILIZER VALVE

OR3

.040

OR4

.040

SV3

CV1

OR2

.08

100 PSI

CV2

RCB

RCR

V

PC1

V

PC2

CBP

CB

OR1

.03

.040

CV3

CV4

60 PSI

SYS

T

PR

3500

PSI

150
PSI

PIL

OR5

PIL

.040

OR3

G1

PC3 (270 PSI)

T

RCB

RCR

PB

CBP

PD1

SV1

PD2

.043

230

PSI

FCB

PS2

SV2

60

PD4

PSI

OR4

OR5 (.043)

FTB

230

PSI

PD3

PSI

PS1

250

ACC

FB

.043

OR1

BR

.043

SW

PSI

60

RB

OR2

PORT

B

A

S1

GAGE

G2

G3

X

X

(B2)

(B1)

BOOM EXTEND/TRANSFER

LOCK-OUT VALVE

.130

225 PSI

GAGE PORT

.18 DIA.

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