The GRACO 257573 is a genuine inlet valve repair kit designed for use in GRACO Magnum Tradeworks 150 and 170, Series A airless paint sprayers. It is intended to restore and maintain the functionality of the pump inlet valve, ensuring reliable operation and preventing leaks or loss of suction. The kit typically includes components such as a ball, ball stop or return spring, and inlet valve fitting, though specific material details are not specified in available sources.

Key Features:

• Inlet Valve Repair Kit
• Magnum Tradeworks 150/170, Series A
• GRACO Magnum Tradeworks 150 and 170, Series A airless paint sprayers
• Restores and maintains pump inlet valve function
• Reliable performance for demanding applications
• Ease of maintenance and replacement

Applications:
Used for repairing and maintaining the inlet valve of GRACO Magnum Tradeworks 150 and 170, Series A airless paint sprayers, ensuring consistent suction and spray performance in painting and coating applications.

Installation Notes:

• Using genuine GRACO parts ensures compatibility, reliability, and optimal performance of your equipment.
• Unplug power cord before starting work
• Relieve all pressure from the system
• Remove drain tube and suction tube
• Clean all dried residue from around the pump inlet valve
• Replace old components with new ones from the kit
• Thread new inlet valve fitting into pump and torque to 200–240 in-lb (23–27 N•m)
• Reconnect drain and suction tubes
• Regularly inspect and clean inlet valve components
• Replace worn or damaged parts promptly
• Follow manufacturer’s recommended maintenance schedule