7 assembly and installation of hydraulic circuit – Cub Cadet 7532 User Manual

Page 197

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Hydraulic System

1

23

1.7

Assembly and Installation of Hydraulic Circuit

1 Assembly of Control Valve

1. Assembling Procedure

1) Line up all the parts disassembled and check the O-ring for scratches and wears. If any defects, change it.

2) Check the spool, movement of plunger, and sheet part for any bruises. If any bruieses, smoothen them with

oilstone.

3) Clean with cleaning fluid.

4) Make sure the assembling position and direction at assembly.

5) Apply some grease to O-ring when assembling it.

2. Adjusting Procedure

1) Remove the plug and the spring of unload valve.

2) The position, which changes the sound when moving the spool while blowing in the air from the plug, is

the neutral position for the spool.

3) Set the clearance "T" with the nut connecting the plate and poppet within 0.3 to 0.6mm {0.012 to 0.024in}

in this position and lock.

Hydraulic 
pressure signal

T

2

T

1

P

C

T

3

4

3

2

1

Neutral oil return

Valve body

Spool valve

Pump port

Poppet

Check valve

Poppet 
spring

Cylinder port

Control Valve Sectional View

Cylinder return

Pilot oil return

Spool valve 
spring

Unload valve

4

2

T  0.3 - 0.6mm

1

3

Sheet

GZ3W31-024A

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