Difficulty

Moderate

Steps

28

Time Required

                          45 minutes - 2 hours            

Sections

4

  • Safety Precautions
  • 3 steps
  • Control Valve Bracket
  • 3 steps
  • Control Valve
  • 18 steps
  • Control Valve O-Rings
  • 4 steps

Flags

0

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Introduction

What you need

Step 1

              Disconnect the spark plug wire               
  • Before you begin, ensure that the engine is powered down and cool to the touch.
  • Grab the plastic housing at the end of the spark plug wire and pull firmly to disconnect it.

Before you begin, ensure that the engine is powered down and cool to the touch.

Grab the plastic housing at the end of the spark plug wire and pull firmly to disconnect it.

1024

Step 2

              Flip the engine switch to the off position               
  • Flip the red engine ON/OFF switch to the OFF position.

Flip the red engine ON/OFF switch to the OFF position.

Step 3

              Close the fuel valve               
  • Flip the fuel valve lever to the OFF position.

Flip the fuel valve lever to the OFF position.

Step 4

              Remove the control valve bracket bolts               
  • Use a 3/8 inch socket to remove the three bolts securing the control valve to the control valve bracket.

Use a 3/8 inch socket to remove the three bolts securing the control valve to the control valve bracket.

Step 5

  • Use a 9/16 inch socket to remove the two bolts securing the control valve bracket to the frame.

Use a 9/16 inch socket to remove the two bolts securing the control valve bracket to the frame.

Step 6

              Remove the control valve bracket               
  • Remove the control valve bracket.

Remove the control valve bracket.

Step 7

              Prepare for fluid drips               
  • Residual hydraulic fluid will be trapped in the hoses connected to the control valve, and may drip during the following procedure.
  • Place a bucket underneath the device, below the control valve to catch any hydraulic fluid drips.
  • Have rags handy to stop drips and clean up affected areas.

Residual hydraulic fluid will be trapped in the hoses connected to the control valve, and may drip during the following procedure.

Place a bucket underneath the device, below the control valve to catch any hydraulic fluid drips.

Have rags handy to stop drips and clean up affected areas.

Step 8

              Remove the output hose               
  • Use an adjustable wrench to loosen the nut securing the output hose to the L-fitting on top of the control valve.

Use an adjustable wrench to loosen the nut securing the output hose to the L-fitting on top of the control valve.

Step 9

  • Remove the output hose from the top L-fitting.

Remove the output hose from the top L-fitting.

Step 10

              Remove the input hose               
  • Use an adjustable wrench to loosen the nut holding the input hose to the L-fitting on the bottom of the control valve.

Use an adjustable wrench to loosen the nut holding the input hose to the L-fitting on the bottom of the control valve.

Step 11

  • Remove the input hose from the bottom L-fitting.

Remove the input hose from the bottom L-fitting.

Step 12

              Remove the top L-fitting               
  • Use an adjustable wrench to loosen the nut securing the top L-fitting to the control valve.

Use an adjustable wrench to loosen the nut securing the top L-fitting to the control valve.

Step 13

  • Spin the top L-fitting counter-clockwise to remove it.
  • This fitting is part number 340-16.

Spin the top L-fitting counter-clockwise to remove it.

This fitting is part number 340-16.

Step 14

              Remove the bottom L-fitting               
  • Use an adjustable wrench to loosen the nut securing the bottom L-fitting to the control valve.

Use an adjustable wrench to loosen the nut securing the bottom L-fitting to the control valve.

Step 15

  • Remove the bottom L-fitting.
  • This fitting is part number 340-16.

Remove the bottom L-fitting.

Step 16

              Remove the piston extension hose               
  • Use an adjustable wrench to loosen the nut securing the piston extension hose to the L-fitting on the rear of the control valve.

Use an adjustable wrench to loosen the nut securing the piston extension hose to the L-fitting on the rear of the control valve.

Step 17

  • Remove the piston extension hose from the rear L-fitting.

Remove the piston extension hose from the rear L-fitting.

Step 18

              Remove the control valve               
  • Use an adjustable wrench to loosen the nut securing the control valve to the cylinder.
  • This connection is the last part holding the control valve to the device, so keep the control valve supported during removal.

Use an adjustable wrench to loosen the nut securing the control valve to the cylinder.

This connection is the last part holding the control valve to the device, so keep the control valve supported during removal.

Step 19

  • Remove the control valve.

Remove the control valve.

Step 20

              Remove leftover fittings               
  • Use an adjustable wrench to loosen the nut securing the piston contraction fitting to the control valve.

Use an adjustable wrench to loosen the nut securing the piston contraction fitting to the control valve.

Step 21

  • Spin the piston contraction fitting counter-clockwise to remove it.
  • This fitting is part number 100-7671.

Spin the piston contraction fitting counter-clockwise to remove it.

This fitting is part number 100-7671.

Step 22

  • Use an adjustable wrench to loosen the nut securing the L-fitting to the rear of the control valve.

Use an adjustable wrench to loosen the nut securing the L-fitting to the rear of the control valve.

Step 23

  • Spin the L-fitting counter-clockwise to remove it.
  • This fitting is part number 340-98.

Spin the L-fitting counter-clockwise to remove it.

This fitting is part number 340-98.

Step 24

  • Only the control valve remains.

Only the control valve remains.

Step 25

              Remove the output hose fitting O-ring               
  • Use a pick tool to remove the O-ring from the output hose L-fitting, on the side that connects to the control valve.
  • This O-ring is part number 237-80.
  • The O-ring between the L-fitting and the hose is part number 237-58. Only replace this O-ring if it is visibly damaged.

Use a pick tool to remove the O-ring from the output hose L-fitting, on the side that connects to the control valve.

This O-ring is part number 237-80.

The O-ring between the L-fitting and the hose is part number 237-58. Only replace this O-ring if it is visibly damaged.

Step 26

              Remove the input hose fitting O-ring               
  • Use a pick tool to remove the O-ring from the input hose L-fitting, on the side that connects to the control valve.
  • This O-ring is part number 237-80.
  • The O-ring between the L-fitting and the hose is part number 237-58. Only replace this O-ring if it is visibly damaged.

Use a pick tool to remove the O-ring from the input hose L-fitting, on the side that connects to the control valve.

Step 27

              Remove the cylinder contraction fitting O-ring               
  • Use a pick tool to remove the O-ring from the cylinder contraction fitting, on the side that connects to the control valve.
  • This O-ring is part number 237-79.
  • The O-ring between the L-fitting and the hose is part number 237-30. Only replace this O-ring if it is visibly damaged.

Use a pick tool to remove the O-ring from the cylinder contraction fitting, on the side that connects to the control valve.

This O-ring is part number 237-79.

The O-ring between the L-fitting and the hose is part number 237-30. Only replace this O-ring if it is visibly damaged.

Step 28

              Remove the cylinder extension fitting O-ring               
  • Use a pick tool to remove the O-ring from the cylinder extension hose L-fitting, on the side that connects to the control valve.
  • This O-ring is part number 237-79.
  • The O-ring between the L-fitting and the hose is part number 237-30. Only replace this O-ring if it is visibly damaged.

Use a pick tool to remove the O-ring from the cylinder extension hose L-fitting, on the side that connects to the control valve.

To reassemble your device, follow these instructions in reverse order.

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Author

                    Carsten Frauenheim                     

Member since: 03/10/2020

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