Troubleshooting Guide
Solenoid Troubleshooting Guide
Internally & Externally Switched Solenoids
Push & Pull Type Solenoids
Manual 36541
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Page 1: ...Troubleshooting Guide Solenoid Troubleshooting Guide Internally Externally Switched Solenoids Push Pull Type Solenoids Manual 36541 Back to index...
Page 2: ...t be installed in the DC power buss prior to the control s power connection Electronic controls contain static sensitive parts Observe the following precautions to prevent damage to these parts Discha...
Page 3: ...Number Descriptor 10 CHAPTER 3 DETAILED TROUBLESHOOTING 11 Preliminary Check 11 Power to the Solenoid 11 Wiring to the S Terminal of Starter 12 Solenoid Coil Resistance Check 13 Table 1A Coil Resistan...
Page 4: ...erials such as plastic or Styrofoam cups cup holders cigarette packages cellophane wrappers vinyl books or folders plastic bottles and plastic ash trays away from the control the modules and the work...
Page 5: ...in The exposed end of the plunger can be attached to equipment and when the solenoid is activated the plunger will move to open close turn on or turn off that equipment Solenoids are configured in man...
Page 6: ...d coil pull coil operates at a high current level to provide maximum pull or push The second wound coil hold coil simply holds the plunger in after it has completed its stroke and bottomed out Since t...
Page 7: ...vibration are present The sealed 3 wire solenoid is well suited for these harsh conditions EXTERNAL SWITCHING WITH TIMER MODULE With the addition of a Woodward pull coil timer module the externally sw...
Page 8: ...ilable with switch caps and either screw or blade type terminals See Figure 3 1 Pigtail leaded termination designed for leads to be fitted to a connector 2 Switch cap with spade type terminals designe...
Page 9: ...Stop Applications Solenoids can be used in both Energized to Run ETR and Energized to Stop ETS Applications In Energized to Run applications which are more common the equipment is turned on when the...
Page 10: ...rgized at the same time as the hold coil with the key switch in the Run position The plunger switches off the pull coil when it bottoms out provided there is enough voltage and the linkage is adjusted...
Page 11: ...cutters strippers Screwdrivers Adjustable wrenches Soldering iron The following parts are not essential but may be needed Tie wraps Electrical tape Wire Crimp ons Troubleshooting Techniques In order...
Page 12: ...ols or equipment Make sure the proper tools or equipment are available before attempting repairs Be aware of the work environment rotating equipment and hazardous exhaust fumes etc Be sure protective...
Page 13: ...first and eliminate it as the source of the problem before investigating other causes Getting Started Before beginning the actual troubleshooting complete the following 1 Identify and learn about the...
Page 14: ...A Flanged B Threaded C Based 2 Indicates plunger type 2 Ext Thread 1 4 28 3 Ext Thread M 6 6 Int Thread 1 4 28 7 Int Thread M 6 U Indicates grounding G Grounded U Ungrounded 1 Indicates termination ty...
Page 15: ...he solenoid is designed to operate in harsh environments locations with excessive heat buildup constant exposure to liquid and particulate contaminants can effect the solenoid operation Power to the S...
Page 16: ...t the solenoid electrical connector from the OEM wiring harness 3 Locate the pin on the OEM side of the connector that is opposite the white wire pull coil of the solenoid side of the connector Place...
Page 17: ...e Now manually move the plunger all the way in to activate the internal switch Hold the plunger in this position and check the reading again between the positive and negative terminals to obtain hold...
Page 18: ...56 892 1751ES 1756ES 12 24 0 232 0 284 0 878 1 073 9 82 12 00 46 55 56 89 1752ES 12 0 195 0 239 10 04 12 27 1755ES 24 0 735 0 899 37 22 45 49 1753ES 12 0 324 0 396 12 97 15 85 1757ES 24 1 208 1 477 54...
Page 19: ...3 17 27 24 0 977 1 193 58 90 71 98 1504 36 2 430 2 970 114 12 139 48 12 0 232 0 284 9 82 12 00 24 0 878 1 073 46 55 56 89 1751 36 6 363 7 777 226 26 276 54 12 24 0 324 0 396 1 208 1 477 12 97 15 85 54...
Page 20: ...e solenoid pulls in but does not return to the shutdown position when switched off engine will not shut off go to the NO SHUTDOWN Table 5 1 With one person at the key switch and one person watching th...
Page 21: ...e bench test the solenoid refer to Solenoid Bench Testing section 2 Check linkage assembly for correct length and or binding Adjust linkage if needed refer to Solenoid Linkage Adjustment section If th...
Page 22: ...wiring harness when checking the voltage For externally switched solenoids you can make a jumper harness with mating connectors as shown in Figure 8 to check the voltage while keeping the solenoid con...
Page 23: ...cranking stops and the Key Switch is released to the Run On position 3 Check the hold in voltage available to the solenoid when NOT cranking Attach the clips of a voltmeter to the Hold and Common wir...
Page 24: ...The setting of the linkage is critical to both the solenoid operation and to the performance of the application The linkage consists of rotating joints fastening hardware and where required a control...
Page 25: ...age adjustment is too short Adjust linkage until the plunger holds in For externally switched solenoids manually push the linkage as far as it will go The plunger should hold in place If the plunger d...
Page 26: ...ered inside Remove the plunger and inspect Clear the cavity of any debris or foreign material Assemble solenoid back together and make sure plunger moves freely Ensure the return spring is not prevent...
Page 27: ...structured program and includes the full standard Woodward product warranty Woodward Product and Service Warranty 5 01 1205 This option allows you to call in the event of an unexpected outage or in ad...
Page 28: ...e returned to Woodward for repair please contact Woodward in advance to obtain a Return Authorization Number When shipping the item s attach a tag with the following information name and location wher...
Page 29: ...ering replacement parts for controls include the following information the part number s XXXX XXXX that is on the enclosure nameplate the unit serial number which is also on the nameplate How to Conta...
Page 30: ...s via telephone email us or use our website and reference Customer Services and then Technical Support Product Training is available at many of our worldwide locations standard classes We also offer c...
Page 31: ...gaseous steam etc Rating Application Control Governor Information Please list all Woodward governors actuators and electronic controls in your system Woodward Part Number and Revision Letter Control D...
Page 32: ...O 80522 1519 USA 1000 East Drake Road Fort Collins CO 80525 USA Phone 1 970 482 5811 Fax 1 970 498 3058 Email and Website www woodward com Woodward has company owned plants subsidiaries and branches a...
