Hydraulic system, 3 boom retract circuit and troubleshooting – SkyTrak 6036 Service Manual User Manual

Page 234

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Hydraulic System

8.18

Model 6036 Legacy

8.8.3

Boom Retract Circuit and Troubleshooting

(Refer to Section 8.8.20, “Boom Extend/Retract Circuit Description” for a more detailed explanation of this circuit.)

Figure 8-6 Boom Retract Hydraulic Circuit

EXTEND/

RETRACT

CYLINDER

HYDRAULIC

OIL COOLER

SECONDARY FUNCTION

MANIFOLD

UNLOADER

VALVE

DIFFERENTIAL

PRESSURE

SENSE VALVE

RELIEF

VALVE

PUMP

HYDRAULIC RESERVOIR

PPG

PP

T

PBG

P

PS

PSG

PB

VG

SFV

V

P

T

LS

LSG

E

R

PRESSURE

REDUCING

VALVE

IN T

T

ATTACH

TI

LT

LS

FRAM

E

EX

T/

RET

LFT/

LW

AUX

Suction

Return

Load Sense

Pressure

RETURN

FILTER

MA6550

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