When

To replace the seal wash seal

Tools required

Seal-handling tool

12123
Figure: Seal-handling tool (left: closed tool; right: open tool)

No.

Description

1

Removal pin

2

Insertion pin

3

Knurl for opening and closing the seal-handling tool
(opening and closing is required only when using the removal pin)

Preparations

  1. Remove the pump head. See Removing the Pump Head.

  2. Remove the piston for which you want to replace the seal wash seal. See Removing the Pistons.

Parts affected on the pump head

1342
Figure: Seal wash seal (here: for left piston)

No.

Description

1

Pump head

2

Seal wash plate

3

Seal wash seal

4

Piston

Follow these steps

  1. Open the seal-handling tool and push the removal pin into the seal wash plate as far as the pin goes in.

  2. Figure: Seal wash seal (here: for left piston)
  3. Close the seal-handling tool and remove the tool from the seal-wash plate. The seal is removed together with the tool.

  4. To remove the seal from the seal-handling tool: Open the tool and pull off the seal from the tool. Once the seal has been removed, it cannot be reused.