RA27 SERVICE
FRONT END
The result of a problem in the front barrel assembly is inconsistent fastenings or
premature damage to any of the component parts. The front barrel assembly is the
simplest part of the tool to service and maintain; however, it does require the greatest
amount of servicing. Ramset recommends cleaning the front barrel assembly after each
day’s use. This section will provide a guide to evaluating problems, taking corrective
actions and prevent further problems.
Inconsistent Fastenings
Inconsistent fastenings are caused by variations in the chamber volume from shot to
shot. Simply put, the piston does not fully return after each shot. The level of
inconsistency can vary from a “poof load” or “dud shot” to variations in fastener
penetration.
In the RA27 piston reset is accomplished with two components, the pawls and fastener
guide with integrated retention clip and ball. Inconsistent fastening is likely to be caused
by dirt and debris preventing the piston from falling back into position. Damage to the
pawls may also be a contributing factor. The pictures on the following pages show how
to disassemble the front end and diagnose the components.
Damage to Front End Components
When a tool needs service with damaged front end components, there is not much
troubleshooting involved. The problem is typically obvious, broken parts. It is important
to understand what caused the failure and what to do to prevent the damage from
happening again. This damage is likely caused due to misapplication or misuse of the
tool. The pictures on the following pages show how to disassemble the front-end
components. Function testing the tool before and after servicing the tool will help
diagnose the issue and can assure the problem is corrected. Instructions on tool
function testing can be found in the operator’s manual. Additional instructions for front
end service of the RA27 tool can be found in the Operator
’s Manual.
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