Amerex Cocking Tool 13341 - OEM

The Amerex Cocking Tool (Part No. 13341) is a specialized OEM service instrument required for the restoration of Amerex Mechanical Release Modules (MRM) and Pneumatic Release Modules (PRM). While other brands utilize lever-style resets, the Amerex 13341 is engineered to interface with the unique linear compression requirements of the KP (Kitchen Protection) and IS (Industrial System) release assemblies.

Following a system discharge or a mandatory functional test, the internal spring-loaded firing pin is released. The 13341 tool provides the controlled mechanical advantage necessary to retract this pin and lock the system sear in the armed position without damaging the internal casting or the sensitive regulator interface. This tool is a mandatory requirement for maintaining NFPA 17A compliance during the re-arming phase of service, ensuring that the firing pin retraction is performed safely and within factory tolerances.

The 13341 must be used exclusively by a certified fire suppression technician during the post-discharge or post-test re-arming sequence. Before beginning the cocking procedure, the technician must verify the agent tank has been recharged and a new OEM nitrogen cartridge is installed, ensuring the system will be fully operational once the sear is re-armed.

The tool must be seated squarely against the release module housing before applying compression force. Any side-loading can warp the guidance sleeve and compromise the linearity of the firing pin travel. Once the firing pin is fully retracted to the required compression depth, the system safety pin must slide effortlessly through the alignment holes. If resistance is felt, the cocking tool has not reached the required depth and the process must be repeated before the safety pin is inserted.

Is the 13341 compatible with both MRM and PRM systems?

Yes. Amerex has standardized the cocking interface across the Mechanical Release Module (MRM) and the Pneumatic Release Module (PRM). This makes the 13341 a universal reset tool for almost all Amerex pre-engineered kitchen and industrial systems.

Can I use a standard screwdriver to reset the mechanism?

No. Using non-specialized tools can cause side-loading on the firing pin, which warps the guidance sleeve. This leads to a sticky release that could fail during a fire. The 13341 ensures a perfectly linear retraction that protects the system's UL listing and mechanical integrity.

How do I know the mechanism is fully cocked?

The 13341 allows the technician to retract the firing pin until the system safety pin can be inserted through the alignment holes. If the safety pin does not slide in effortlessly, the 13341 tool has not yet reached the required compression depth for a safe re-arm.