Description
The GRACO 23965-00 is a trigger piston air switch assembly designed for use in the Probler P2 Dispense Gun. It is a critical component that enables responsive trigger action and reliable operation within GRACOs high-output spray equipment for polyurethane foam and polyurea applications. The material is not specified, but it is engineered for durability and consistent performance in demanding industrial environments.
Key Features:
- Trigger Piston Air Switch Assembly
- Probler P2 / GC1918
- GRACO Probler P2 Dispense Gun
- Responsive trigger action
- Double piston design for high triggering force (over 300 lbs / 136 kg)
- Lightweight and ergonomic for easy maneuverability
- Reduces maintenance and increases spraying uptime
- Anti-crossover design virtually eliminates material entering the air piston
- Easy-to-replace mix chamber insert for quick maintenance
Applications:
Used in high-output spray applications for polyurethane foam and polyurea, suitable for industrial, construction, and insulation projects.
Installation Notes:
- Using genuine GRACO parts ensures optimal performance, reliability, and safety of the Probler P2 Dispense Gun. Non-genuine parts may compromise equipment function and longevity.
- Refer to the Probler P2 user manual for detailed disassembly and reassembly instructions
- Ensure all O-rings and seals are in good condition before installation
- Clean the assembly area to prevent contamination
- Test trigger action and air flow after installation to confirm proper operation
- Regularly inspect the trigger piston for wear or damage
- Replace O-rings and seals as needed during routine maintenance
- Keep the assembly clean and free of debris
- Follow manufacturer-recommended maintenance schedules






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