Training & Maintenance Manual |
Maintenance, Troubleshooting & Warnings
Scheduled Maintenance
Silencer – Periodic maintenance of the exhaust mufflers may be required. The frequency of maintenance depends on the environment and condition of the air supply.
!Cautions
•Filtrate the inlet air to protect the weld block against contaminating matter typically found in compressed air systems (i.e. rust, water, compressor oil, or other foreign particles). A standard 40 micron filter is recommended.
If liquid aerosols, both water and oil, and submicron particulate matter need to be removed from your air system, then a coalescing filter is required.
•The inlet compressed air must be filtered, regulated, and periodically maintained to ensure maximum operating performance and warranty.
Weld Block Troubleshooting
Always verify that air and electrical are connected properly per Installation Instructions on page 4. At startup, cylinder should be open fully with no electrical signal to solenoids. All air lines, filters, regulators, tubing, hoses, fittings and electrical cables should be in good working condition as specified in automotive plant maintenance schedule.
1.Cylinder does not extend / retract.
•Does the cylinder move using manual overrides?
–If yes, then check electrical conditions. Check the following:
•Solenoid connections
•Coils – replace if necessary
•PLC program
–If no, does the cylinder move freely with air turned off?
•If no, then cylinder should be repaired / replaced.
•If yes, is the flow control open?
–If no, open flow control. See Setup Instructions on page 5.
–If yes, verify with gauges that there is pressure on back side of cylinder when valve shifts. There is a possibility that the metering of exhaust
air on the front side of the cylinder, due to the flow control, is creating a “Joe Block” effect occurring between the piston face and cylinder. Contact Parker Representative for assistance.
–If yes, replace valves on System
2.Cylinder tips close too fast / slow.
•Adjust flow control. See Setup Instructions on page 5.
•Quick Exhaust only – Adjust air timer on quick exhaust.
•Check muffler for proper operation. If covered with weld slag, then replace muffler.
3.Weld gun does not fire weld.
•Is cable connected to sensor?
–If no, connect to sensor
–If yes, is cable connected to PLC?
•If no, wire to controller
•If yes, check PLC program on location of weld signal to start weld. Also verify feedback sensor is operating properly.
4.Weld gun fires before tips are closed
•Adjust flow control so that weld tips close slower. See Setup Instructions on page 5.
•Is sensor input in the PLC correct? See Setup Instructions on page 5.
Warnings
! WARNING
To avoid unpredictable system behavior that can cause personal injury and property damage:
•Disconnect electrical supply (when necessary) before installation, servicing, or conversion.
•Disconnect air supply and depressurize all air lines connected to this product before installation, servicing, or conversion.
•Operate within the manufacturer’s specified pressure, temperature, and other conditions listed in these instructions.
•Medium must be
•Service according to procedures listed in these instructions.
•Installation, service, and conversion of these products must be performed by knowledgeable personnel who understand how pneumatic products are to be applied.
•After installation, servicing, or conversion, air and electrical supplies (when necessary) should be connected and the product tested for proper function and leakage. If audible leakage is present, or the product does not operate properly, do not put into use.
•Warnings and specifications on the product should not be covered by paint, etc. If masking is not possible, contact your local representative for replacement labels.
! WARNING
FAILURE OR IMPROPER SELECTION OR IMPROPER USE OF THE PRODUCTS AND/OR SYSTEMS DESCRIBED HEREIN OR RELATED ITEMS CAN CAUSE DEATH, PERSONAL INJURY AND PROPERTY DAMAGE.
This document and other information from Parker Hannifin Corporation, its subsidiaries and authorized distributors provide product and/or system options for further investigation by users having technical expertise. It is important that you analyze all aspects of your application, including consequences of any failure and review the information concerning the product or systems in the current product catalog. Due to the variety of operating conditions and applications for these products or systems, the user, through its own analysis and testing, is solely responsible for making the final selection of the products and systems and assuring that all performance, safety and warning requirements of the application are met.
The products described herein, including without limitation, product features, specifications, designs, availability and pricing, are subject to change by Parker Hannifin Corporation and its subsidiaries at any time without notice.
EXTRA COPIES OF THESE INSTRUCTIONS ARE AVAILABLE FOR INCLUSION IN EQUIPMENT / MAINTENANCE MANUALS THAT UTILIZE THESE PRODUCTS. CONTACT YOUR LOCAL REPRESENTATIVE.
Pneumatic
19Parker Hannifin Corporation
Pneumatic Division
Richland, Michigan
www.parker.com/pneumatics
