P250A - Technical Support rev.141

Available documents:


This tool is fitted with the original Primpact module (as illustrated). Main feature of this version is the head and cylinder that are screwed together.

A redesigned Primpact module was introduced in August 2015. There are several components that are not compatible with the new version.

All tools identified as Model # P250A or Model # P250A-142 on the nameplate use the original Primpact module.

Check Part list and Technical Note for replacement parts.

The finely threaded components of this tool DO NOT require the use of threadlocker or sealant. The cylinder should always be hand-screwed onto the head/valve assembly before inserting the whole assembly into tool main body. Tighten with moderate force and lock in place with the head lock.

NEVER apply threadlocker or sealant onto cylinder or head threads. The use of a threadlocker will VOID the warranty.

Pneumatic nailer are designed to be operated with a 2.8 lbs mallet. Use ONLY the rubber end of the mallet to actuate the tool. The use of the steel end will damage the head assembly and will VOID the warranty.
Pneumatic tools require minimal lubrication. Few drops of oil weekly in the air inlet is sufficient to reduce wear and prolong life.
Troubleshoot your compressed air delivery system. Many of problems come from a faulty or inadequate compressed air supply system. Read this section before attempting to repair the tool.