The GRACO 287422 SHAFT, INPUT is a drive shaft component designed for use within GRACO airless spray equipment, specifically in models such as the GMAX 3400, GMAX II 3900, and GMAX II 5900 series. Its primary function is to transmit mechanical power from the motor to the pump assembly, enabling the equipment to operate efficiently. The material is not explicitly specified in available documentation, but such shafts are typically constructed from hardened steel for durability and reliability.

Key Features:

• Drive Shaft, Input
• Fits GMAX 3400, GMAX II 3900, GMAX II 5900 series
• Compatible with GRACO GMAX 3400, GMAX II 3900, GMAX II 5900 airless spray equipment
• Engineered for reliable power transmission
• Designed for easy integration with clutch and drive assemblies
• Supports high-duty cycle operation typical of industrial spray equipment

Applications:
Used in GRACO airless spray equipment for industrial and commercial painting, coating, and lubrication applications. Suitable for environments requiring robust and continuous operation, such as mining, agriculture, and large-scale maintenance projects.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, safety, and longevity of equipment. Non-genuine parts may compromise reliability and void warranties.
• Refer to the equipment manual for specific torque requirements and installation procedures.
• Ensure proper alignment of the shaft with the clutch and drive assemblies.
• Inspect for wear or damage before installation.
• Use recommended tools and follow safety guidelines during installation.
• Torque specifications for related components are provided in the manual (e.g., clutch housing screws: 25–35 in-lb, 17–23 ft-lb, etc.).