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Instructions
Field Sensitive Magnetic
Proximity Cycle Switch
For use with MS & MH valve sections. For professional use only.
Part Nos. 557741, 557746, 558933
3500 psi (24 MPa, 241 bar) Maximum Working Pressure
Part No. 557745
7500 psi (51.7 MPa, 517 bar) Maximum Working Pressure
Important Safety Instructions
Read all warnings and instructions in
this manual before using the equipment.
Save these instructions.
313228F
EN
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Summary of Contents for Graco 557741
- Page 1 Proximity Cycle Switch 313228F For use with MS & MH valve sections. For professional use only. Part Nos. 557741, 557746, 558933 3500 psi (24 MPa, 241 bar) Maximum Working Pressure Part No. 557745 7500 psi (51.7 MPa, 517 bar) Maximum Working Pressure...
- Page 2 Warnings Warnings The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclama- tion point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific risks. When these symbols appear in the body of this manual or on warning labels, refer back to these Warnings. Product-spe- cific hazard symbols and warnings not covered in this section may appear throughout the body of this manual where applicable.
- Page 3 Warnings WARNING EQUIPMENT MISUSE HAZARD Misuse can cause death or serious injury. • Do not operate the unit when fatigued or under the influence of drugs or alcohol. • Do not exceed the maximum working pressure or temperature rating of the lowest rated system component.
- Page 4 Valve Assembly Installation Valve Assembly Installation Grounding Assemblies equipped with cycle pin indicator/electrical micro-switch Two options: Method A or Method B) The equipment must be grounded to reduce the risk of static and electric shock by providing an escape Method A: Installation in any piston wire for the electric current due to static build up or in the event of a short circuit.
- Page 5 12 ft. (3.66 m) 558024 indicator pin/switch 1. Determine which valve section and side is the most For 3-Pin: Models 557741 convenient location for the switch. Connecting Cable Wiring Code: 2. Relieve pressure. See Pressure Relief Procedure in the pump instruction manual included with your operating system.
- Page 6 Valve Assembly Installation Recycling and Disposal For 3-Pin: Flying Lead - Models 557745, Series B and Earlier, and 558933 Series A Connecting Cable Wiring Code: End of Product Life Red = Ground At the end of the product’s useful life, dismantle and Black = Common (Power) recycle it in a responsible manner.
- Page 7 Other Specifications Switch Type Normally open contacts Maximum Cycle Rate 125 cycles/min. Maximum Operating Pressure P/N: 557741, 557746, and 558933 3500 psi (24 MPa, 241 bar) P/N: 557745 7500 psi (51.7 MPa, 517 bar) Material Switch - Stainless steel Adapter - Nickel plated steel...
- Page 8 With the exception of any special, extended, or limited warranty published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be defective.
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