Graco Microscope Magnifier 24B237 User Manual

Instructions  
Air Over Oil  
Manifold Assembly  
313848C  
ENG  
- Uses one-way air injectors to inject air into individual valve lube outlet ports -  
Model No.: 24B237 (3 sections), 24B239 (4 sections), 24B240 (5 sections),  
24B241 (6 sections)  
Models without Air Sensor: 24J814 (3 sections), 24J815 (4 sections), 24J816  
(5 sections), 24J817 (6 sections)  
Can be mounted to standard, Graco MSP Divider Valve. See instruction manual 312497.  
250 psi (1.7 MPa, 17 bar) Maximum Air and Fluid Working Pressure  
Important Safety Instructions  
Read all warnings and instructions in this manual.  
Save these instructions.  
US Patent Pending  
Model 24B237 shown attached to MSP Divider Valve  
 
Assembly Instructions  
Assembly Instructions  
B
A2  
A3  
C
A1  
A4  
1
2
3
4
6
5
G
A
Fig. 1  
Key  
A
B
C
D
E
F
Valve mounting screw access port  
Plug 1/8 NPSF (4 places) (Part No. 557776)  
Injector kit (Part No. 24B246)  
1/8 NPT  
DIN 43650A Connector  
Air Pressure Sensor (sold separately, Part No. 122375)  
O-ring (Part No. 111710)  
D
G
F
Torque Pattern - Torque to 8-9 ft. lbs (10.8-12.2 N.m)  
PIN Configuration  
PIN 1 - COM  
PIN 2 - Not Used  
PIN 3 - Normally Open  
E
1 - 6  
2 - 5  
3 - 4  
Fig. 2  
313848C  
3
 
   
Installation Instructions  
Installation Instructions  
3. Place air over oil manifold over valves and hand  
tighten all air injectors to seat manifold on the valve  
stack. Then tighten air injectors with a wrench in a  
star pattern until all o-rings are seated in o-ring  
ports of valve and manifolds.  
Pressure Relief Procedure  
NOTE: The correct order is provided in chart on  
page 3.  
Follow this pressure relief procedure whenever you are  
instructed to relieve pressure or need to check or ser-  
vice equipment.  
4. Using valve mounting screw access ports, torque all  
valve mounting socket head cap screws to 8 - 9  
foot/pounds (10.8 - 12.2 N•m).  
1. Turn off power (air, electric, hydraulic) to lube supply  
pump.  
5. The air supply may be induced into manifold using  
available ports, A1, A2, A3, or A4.  
2. Turn off air supply to air manifold.  
6. The air pressure sensor may be connected to any  
available port not connected to the air supply. This  
device warns of any blockage or breaks in the air  
line.  
3. Using a wrench, slowly loosen fluid inlet fitting.  
4. Using a wrench, slowly loosen each outlet port fit-  
ting.  
NOTE:  
5. Using a wrench, slowly loosen air inlet fitting.  
Always use an air line filter of 40 micron or better to  
remove dirt and moisture from the compressed air  
supply.  
Assembly Instructions  
NOTE: The Air Over Oil Manifold is designed to mount  
to a standard Graco MSP divider valve. For instructions  
on how to use an MSP divider valve, refer to instruction  
manual 312497.  
Install an air regulator to allow pressure adjustment.  
Start Up Instructions  
The Air Over Oil Manifold uses one-way air injectors to  
inject air into each of the individual divider valve lube  
outlet ports. Each air injector assembly is internally  
checked to prevent oil from entering the air supply sys-  
tem.  
System must be pre-filled with 100 psi (0.69  
MPa, 6.9 bar) of air pressure. Once system is  
pre-filled and oil is being emitted from each dis-  
tribution line, system air may be reduced to final  
operating pressures.  
The Air Oil Valve does not utilize common porting  
between the lube outlets, therefore each outlet is both  
pneumatically and hydraulically independent.  
Minimum operating air pressure is 45 psi (0.31  
MPa, 3.1 bar).  
An air pressure sensor is provided to monitor for any  
blockage or breaks in the air line.  
Air pressure sensors are factory set to 35 psi  
(0.24 MPa, 2.4 bar) (Models 24B237, 24B239,  
24B240, 24B241 only).  
The MSP divider valve can be used with a cycle indica-  
tor to monitor for proper oil lube cycles or blockage in  
any of the lubrication lines.  
1. Remove alternate outlet port plugs from divider  
valves.  
2. Loosen valve mounting socket head cap screws.  
4
313848C  
 
Technical Data  
Technical Data  
Maximum Air Working Pressure  
Maximum Fluid Working Pressure  
Lubricant  
250 psi (1.7 MPa, 17 bar)  
250 psi (1.7 MPa, 17 bar)  
Oils up to ISO 460 (2500 sus)  
1/8 NPT female  
Air Inlet  
Maximum Operating Temperature  
Material  
200° F (93° C)  
anodized aluminum, zinc plated steel, stainless steel,  
chrome alloy steel, fluorocarbon  
Air Sensor  
Air Connection  
Electrical Connection  
1/8 NPT male  
DIN43650A, PIN 1 - COM, PIN 2 - Not used,  
PIN3 - Normally Open  
250 psi (1.7 MPa, 17 bar)  
35 psi (.24 MPa, 2.4 bar)  
Falling  
Maximum Pressure  
Fixed Setpoint  
Setpoint Direction  
Circuit Form  
SPST-NO (below 35 psi)  
5A @ 250 VAC  
Current Rating  
5A @ 30 VDC (resistive)  
Buna-N  
Diaphragm Material  
313848C  
5
 
Technical Data  
Dimensions  
B
A
D
C
Dimension A  
inch (mm)  
Dimension B  
inch (mm)  
Dimension C  
inch (mm)  
Dimension D  
inch (mm)  
Model  
24B237  
24B239  
24B240  
24B241  
2.89 (73.4)  
3.815 (96.9)  
4.74 (120.39)  
5.665 (143.89)  
3.00 (76.2)  
3.00 (76.2)  
3.00 (76.2)  
3.00 (76.2)  
.718 (18.2)  
.718 (18.2)  
.718 (18.2)  
.718 (18.2)  
3.75 (95.3)  
3.75 (95.3)  
3.75 (95.3)  
3.75 (95.3)  
6
313848C  
 
Notes  
Notes  
313848C  
7
 
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: 612-623-6928 or Toll Free: 1-800-533-9655, Fax: 612-378-3590  
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.  
This manual contains English. MM 313848  
Graco Headquarters: Minneapolis  
International Offices: Belgium, China, Japan, Korea  
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441  
Copyright 2009, Graco Inc. is registered to ISO 9001  
4/2009, revised 6/2011  
 

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