Description
The GRACO 258941 Kit, U-Cup Repair 25 is a replacement seal kit designed for use in GRACO Z-Series chemical pumps. It contains U-cup seals and related components, typically made from durable elastomers or engineered plastics, to restore sealing integrity and prevent leaks in high-wear areas of the pump assembly.
Key Features:
- Seal repair kit
- 25cc (for 25cc pump models)
- Elastomer/engineered plastic U-cup seals and related components
- GRACO Z-Series chemical pumps, specifically for 25cc pump models
- Designed for high-wear areas
- Restores sealing integrity
- Helps prevent leaks
- Supports reliable pump operation
Applications:
Used for maintenance and repair of GRACO Z-Series chemical pumps, particularly in applications requiring frequent seal replacement due to wear or chemical exposure.
Installation Notes:
- Using genuine GRACO parts ensures proper fit, performance, and longevity of the pump assembly.
- Replace worn or damaged parts with components from the repair kit
- Lubricate seals, o-rings, and moving parts with grease before installation
- Apply anti-seize lubricant to threads where specified
- Ensure U-cup springs face the correct direction (toward displacement rod or throat cartridge as per manual)
- Follow torque specifications for assembly (refer to manual for exact values)
- Assemble and torque after displacement rod is assembled through throat retainer
- Consult the equipment manual for detailed assembly instructions
- Use proper tools for installation
- Inspect all components for wear or damage before installation
- Follow a star pattern when tightening tie bolts to ensure even pressure
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