1. Prior to each use, inspect the frame and other critical components for cracks, excessive wear, carbon build up or other defects. Do not use if any defects are found. 

2. Barrel/Bolt: Periodically unload, remove, and separate the bolt from the barrel. Inspect the chamber and bore, cleaning as needed with an appropriately sized cleaning device designed for 22LR. A dirty chamber can lead to reliability issues. Also clean the lug at the breech end of the barrel and bolt to ensure proper seating and clearance for the firing pin. Carefully inspect the bore for any lead build up. If build up is noticed, be sure to clean bore before re-using as lead build up can lead to inaccuracy or even a potentially dangerous situation if there is significant build up.

3. Periodically clean the frame and cover in the barrel slide region as needed, removing combustion residue. Lubricate the hammer tip and/or the underside of the barrel (manual pg 28).
4. Replace the white magazine spring if issues chambering the last round are observed.