RA27 SERVICE
GLOSSARY
Overdriving a Fastener
– When a fastener is overdriven into the work material, the
result is the fastener head is driven below the surface of the work material,
essentially leaving a hole or countersink. This is caused by the load being too
powerful or a soft spot in the base material. To correct this condition, reduce the
level of the powder load, and/or dial back on the power adjust wheel.
Overdriving the Tool
– When taking a shot and the user allows the tool to recoil.
When a tool is fired, its natural tendency is for the body of the tool to be pushed
rearward, while the front barrel assembly will be pushed forward. If separation of
these two components reaches a certain point an impact occurs internally in the
barrel between the piston, buffer assembly and barrel. This situation is not easily
detectable, but it does cause the most damage. In most cases, there are no warning
signs. The fastenings are usually flush with the surface, then suddenly the tool loses
power or stops working depending on severity.
Blank Fire
– The powder load in the tool goes off, but a fastener does not come out
Function Test
– After the tool is fully assembled, yet does not contain a fastener or
powder load, the tool is depressed against the work surface and the trigger is pulled.
The end result is an audible click of the firing pin
