Description
The GRACO 557337 is a fill cap designed for use with 12 and 20 point reservoirs, specifically for GRACO LubeMaster pumps. It is constructed from cast material (likely metal or durable plastic, though material is not explicitly stated in available sources). Its primary function is to securely seal the reservoir, preventing contamination and leakage during operation.
Key Features:
- Fill Cap
- For 12 and 20 pt. Reservoirs
- GRACO LubeMaster Pumps
- Designed for secure sealing of reservoirs
- Helps prevent contamination and leakage
- Durable construction for repeated use
Applications:
Used in lubrication systems requiring secure reservoir sealing, particularly in industrial and maintenance environments where GRACO LubeMaster pumps are utilized.
Installation Notes:
- Using genuine GRACO parts ensures proper fit, function, and reliability, reducing the risk of leaks or equipment failure.
- Ensure reservoir is clean and free of debris before installation
- Hand-tighten the fill cap securely to prevent leaks
- Regularly inspect the cap for wear or damage and replace as needed






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