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Boom lift circuit and troubleshooting, Hydraulic system, 4 boom lift circuit and troubleshooting – SkyTrak 6042 Service Manual User Manual

Page 252: Figure 8-7 boom lift hydraulic circuit

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Hydraulic System

8.20

Model 6042 Legacy

Origin 7/02

8.8.4

Boom Lift Circuit and Troubleshooting

(Refer to Section 8.8.21, “Boom Lift/Lower Circuit Description” for a more detailed explanation of this circuit.)

Figure 8-7 Boom Lift Hydraulic Circuit

MAIN

CONTROL

VALVE

HYDRAULIC

OIL COOLER

UNLOADER

VALVE

T

SFV

V

LSG

P

LS

VG

RETURN

FILTER

HYDRAULIC

RESERVOIR

PUMP

IN

T

T

ATTACH

TILT

FRAME

EXT/RET

LFT/LWR

AU

X

LS

SECONDARY

FUNCTION

MANIFOLD

PP

P

PS

PSG

PPG

T

PBG

PB

Ø .029

PRESSURE

REDUCING

VALVE

RELIEF

VALVE

DIFFERENTIAL

PRESSURE

SENSE VALVE

CHECK

VALVE

FITTING

LEFT

LIFT/LOWER

CYLINDER

RIGHT

LIFT/LOWER

CYLINDER

Suction

Return

Load Sense

Pressure

E

R

E

R

MA10,0260