Replacing the O-rings of the unit injector

Removing

Remove the injector.

Carefully remove the O-rings from the unit injector using "flexible «tool.

Make sure that there are no burrs at the seat of the O-rings.

Installation

Thoroughly clean the mounting surfaces of the O-rings on the unit injector.

Note: When mounting O-rings, always use a mounting sleeve. Otherwise, there is a high probability of damage to the O-rings.

Note: Be sure to match the O-rings and their grooves.

Note: Avoid roller movement when installing O-rings. O-rings must not be twisted in the housing of the unit injector.

Insert the mounting sleeve into the unit injector as far as it will go (pic. 2.370).

Insert the top, thick O-ring into the mounting sleeve and into the housing of the unit injector.

Remove the mounting sleeve.

Insert the mounting sleeve into the unit injector as far as it will go (pic. 2.370).

Insert the white-marked bottom O-ring into the mounting sleeve and into the housing of the unit injector.

Remove the mounting sleeve.