Remove the injection pin housing from the injection gun using the 'fork' tool
3.
supplied.
Do not use pliers or similar.
Make sure not to damage the housing or
injection pin.
If the injection pin housing is difficult to remove, there
is probably dirt in the injection gun. Remove any dirt.
4.
Push the injection pin out of the housing using the tool supplied.
5.
Remove the O-ring on the injection pin using the tool supplied.
Take care: do not damage or remove the white spacer
O-ring
6.
Fit the new O-ring as shown below, using the tool supplied.
Make sure the O-ring is in the correct position!
rings.
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