Owner’s Manual 2016

6.1. Cleaning and lubrication before firing

The following procedure assumes that the FN PS90

Carbine has correctly

been cleaned and lubricated the last time it has been used (also refer to

§ 6.2).

If the FN PS90

Carbine is used for the first time upon purchase, the

following cleaning procedure should be carried out in order to remove the

preservation lubricant.

❖

Carry out the field stripping procedure (refer to § 5.1).

❖

Using a cleaning rag holder and clean rags (pieces of

flannel), remove the maintenance lubricant from the bore of

the barrel until the last rag is clean.

❖

Dry the bore of the barrel.

❖

Remove the maintenance lubricant from the moving parts

group.

❖

Slightly lubricate the moving parts group by proceeding as

follows :

• Apply 2 drops of functional lubricant to each guide rod,

just behind the breech block.

• Move the breech block at least three times back and

forth.

• Apply 1 drop of functional lubricant to the ejector, to the

extractor and to the holes of the breech block.

The other parts of the carbine do not require lubrication.

❖

Reassemble the carbine.

Breech block

Guide rod

Ejector / extractor