Graco 558938 User manual

313229B
Instructions
Field Sensitive Magnetic
Proximity Cycle Switch
- Use with MX, MXP & MGO Valve Sections -
DC-powered 4-pin FSM proximity switches are not recommended for use on series divider
valves operating at less than 20 cycles per minute.
Part No. 557752, 558938
10,000 psi (69 MPa, 689 bar) Maximum Operating Pressure
Important Safety Instructions
Read all warnings and instructions in this
manual. Save these instructions.
ENG

Warnings
2313229B
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 symbol refers to procedure-specific risk. Refer back
to these warnings. Additional, product-specific warnings may be found throughout the body of this manual where
applicable.
WARNING
ELECTRIC SHOCK HAZARD
Improper grounding, setup, or usage of the system can cause electric shock.
• Turn off and disconnect power at main switch before disconnecting any cables and before servicing
equipment.
• Connect only to grounded power source.
• All electrical wiring must be done by a qualified electrician and comply with all local codes and
regulations.
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. See Technical Data in all equipment manuals.
• Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in all
equipment manuals. Read fluid and solvent manufacturer’s warnings. For complete information about
your material, request MSDS forms from distributor or retailer.
• Check equipment daily. Repair or replace worn or damaged parts immediately with genuine
manufacturer’s replacement parts only.
• Do not alter or modify equipment.
• Use equipment only for its intended purpose. Call your distributor for information.
• Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.
• Do not kink or over bend hoses or use hoses to pull equipment.
• Keep children and animals away from work area.
• Comply with all applicable safety regulations.
SKIN INJECTION HAZARD
High-pressure fluid from dispense valve, hose leaks, or ruptured components will pierce skin. This may
look like just a cut, but it is a serious injury that can result in amputation. Get immediate surgical
treatment.
• Do not point dispense valve at anyone or at any part of the body.
• Do not put your hand over the end of the dispense nozzle.
• Do not stop or deflect leaks with your hand, body, glove, or rag.
• Follow Pressure Relief Procedure in this manual, when you stop spraying and before cleaning,
checking, or servicing equipment.

Valve Assembly Installation
313229B 3
Valve Assembly Installation
Grounding
The equipment must be grounded. Grounding reduces
the risk of static and electric shock by providing an
escape wire for the electrical current due to static build
up or in the event of a short circuit.
Assemblies not originally equipped with
cycle pin indicator pin/switch
1. Determine which valve section and side is the most
convenient location for the switch.
2. Remove piston plug and discard. Screw in appropri-
ate proximity switch using o-ring supplied. For MX
and MXP valve sections, torque to 6-8 ft/lbs for
o-ring seal.
3. Connect electrical system.
Assemblies equipped with cycle pin
indicator/electrical micro-switch
(2 options available; choose either Method A or Method B)
A: Installation in any piston chamber not occupied
by the cycle indicator pin
1. Determine which valve section and side is the most
convenient location for the switch.
2. Install proximity switch in any other piston chamber
not occupied by the cycle indicator pin.
3. Remove piston plug. (Do not discard plug if you are
removing the cycle indicator pin. You will install it in
step 5e.).
4. Screw in appropriate proximity switch using
seal/gasket supplied. For MX and MXP valve sec-
tions, torque to 6-8 ft/lbs for o-ring seal; 10 ft/lbs for
gasket seals.
5. Either leave cycle indicator pin installed for visual
indication of cycle or remove as follows:
a. Unscrew cycle indicator body from valve and
discard.
b. Grasp indicator pin and pull pin/piston assembly
out of feeder.
c. Remove the indicator pin by sliding it through
the slot on models equipped with this arrange-
ment (late model MX type) or drive out cross pin
using a brass rod (old MX type).
d. Discard pin. Carefully insert piston back in bore.
e. Plug hole with piston plug removed in step 3.
Torque to 35 ft/lbs for MX.
6. Make electrical connection.
NOTICE
Do not over torque! Excessive torque will cause
switch failure. For MGO torque adaptor to 25-30 ft/lbs
and the switch to 6-8 ft/lbs.
NOTICE
Do not over torque! Excessive torque will cause
switch failure. For MGO torque adaptor to 25-30 ft/lbs
and the switch to 6-8 ft/lbs.
NOTICE
Piston is a ground part and all caution must be taken
to avoid nicking, scratching or contaminating this part
or the feeder piston bore.

Technical Data
4313229B
B: Replacing existing cycle pin.
1. Determine which valve section and side is the most
convenient location for the switch.
2. Remove piston plug and discard.
3. Screw in appropriate proximity switch using
seal/gasket supplied. For MS and MH valve sec-
tions, torque to 6-8 ft/lbs for o-ring seal.
4. Reverse piston so proximity switch does not sense
slot end of piston. Then install proximity switch in
piston chamber.
Technical Data
NOTICE
Do not over torque! Excessive torque will cause
switch failure. For MGO torque adaptor to 25-30 ft/lbs
and the switch to 6-8 ft/lbs.
Current Rating
4 Pin Connector 0.1 A @ 28 VDC
5 Pin Connector 2.0 A @ 120/240 VAC
Temperature Range -22°F to 250°F (-30°C to 121°C)
Normally Open Contacts
Maximum Cycle Rate 60 cycles/minute
Maximum Operating Pressure 10,000 psi (69 MPa, 689 bar)
Material Switch - 303 stainless steel
Adapter - nickel plated steel
O-Ring - Viton 90 durometer

Technical Data
313229B 5
Wiring Instructions
In order to make proper electrical connections, connector cables must be used. The following connect cables are
available:
4-Pin Cable Options for DC Powered Applications
with LED Power/Operation Lights
5-Pin Cable Options for AC Powered Applications
(No Operational Indicators in Cables)
DC Prox Switch Cables - Connecting Cable Wiring Code
Connecting Cable Wiring Code
-3
Connector Polarity Cable Length Part No.
Straight NPN 12 ft. 558968
Straight PNP 12 ft. 558025
90° PNP 12 ft. 558026
Connector Cable Length Part No.
Straight 6 ft. 558023
Straight 12 ft. 558024
90° 6 ft. 558965
a
b
c
d
ti12642a
Cable Wires
Color Code
DC Cable Pin Assignments
PNP Cable* NPN Cable*
Black Pin a - N.O. Pin a - N.O.
Brown Pin b - Power Pin b - Power
Blue Pin c- Common Pin c - Common‘
White Pin d - Ground Pin d - Ground
*With LED Operational Indicators
e
d
c
b
a
tu12641a
USA Color
Code AC Cable Pin Assignments
White Pin a - N.O.
Red Pin b - Not used
Green Pin c - Ground
Orange Pin d - Not Used
Black Pin e - Common

All written and visual data contained in this document reflects the latest product information available at the time of publication.
Graco reserves the right to make changes at any time without notice.
Original instructions. This manual contains English. MM 313229
Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441
Copyright 2007, Graco Inc. is registered to ISO 9001
www.graco.com
Revised 11/2010
Graco Standard Warranty
Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in
material and workmanship on the date of sale to the original purchaser for use. 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. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco’s written
recommendations.
This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by faulty
installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of
non-Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of Graco equipment with
structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture, installation, operation or
maintenance of structures, accessories, equipment or materials not supplied by Graco.
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for verification of
the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The equipment will be returned
to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect in material or workmanship, repairs will
be made at a reasonable charge, which charges may include the costs of parts, labor, and transportation.
THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.
Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other remedy
(including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any other incidental or
consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the date of sale.
GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE, IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS OR COMPONENTS SOLD BUT NOT
MANUFACTURED BY GRACO. These items sold, but not manufactured by Graco (such as electric motors, switches, hose, etc.), are subject to
the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable assistance in making any claim for breach of these
warranties.
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment hereunder, or
the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract, breach of warranty, the
negligence of Graco, or otherwise.
FOR GRACO CANADA CUSTOMERS
The Parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings entered into,
given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties reconnaissent avoir convenu que la
rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures judiciaires exécutés, donnés ou intentés, à la suite
de ou en rapport, directement ou indirectement, avec les procédures concernées.
Graco Information
TO PLACE AN ORDER, contact your Graco distributor or call to identify the nearest distributor.
Phone: [phone] or Toll Free: 1-800-533-9655, Fax: [phone]