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Troubleshooting
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Summary of Contents for Cattron LOFA MC704
- Page 1 LOFA MC704 Panel Operation and Troubleshooting Manual 9M02-3000-A001-EN...
- Page 2 Cattron Holdings, Inc., or any of its affiliates or agents shall not be liable for incidental or consequential damages of any kind. All Cattron products are sold pursuant to the Terms and Conditions of Sale, a copy of which will be furnished upon request. When used as a tradename herein, Cattron means Cattron Holdings, Inc.
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Page 3: Table Of Contents
LOFA MC704 Panel Operation and Troubleshooting Manual Contents Introduction................................5 Important Safety Information ..........................6 Operation................................7 Preheat Options ............................8 3.1.1 Preheat Output ..........................8 Indicators ..............................8 3.2.1 Battery LED (Red) ......................8 3.2.2 Oil Pressure LED (Red) ....................8 3.2.3 Temperature LED (Red) ......................9 3.2.4 AUX LED (Red) ........................9 3.2.5 Preheat/OK LED (Green) ....................9... - Page 4 LOFA MC704 Panel Operation and Troubleshooting Manual Technical Support ............................. 21 9M02-3000-A001-EN Revision D...
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Page 5: Introduction
Note: The engine harness is not included with the panel. A number of standard engine harnesses are available, or Cattron can develop a custom harness for your exact needs. Generic harnesses in various lengths are available for field customization. WARNING... -
Page 6: Important Safety Information
Please note the following important safety information: • The warnings in this publication are not all inclusive Cattron cannot anticipate every potential hazard • Appropriate safety rules and precautions should be followed with any tool, work method or operating •... -
Page 7: Operation
LOFA MC704 Panel Operation and Troubleshooting Manual Operation Turning the panel key to the run position starts a self-test which causes all LEDs to flash three times, activates the alarm output (if preheat is not used) for one second and enables the fuel run/stop solenoid output. After self-test, the LEDs indicate the state of the inputs they monitor. -
Page 8: Preheat Options
The panel can be factory configured to indicate only oil pressure failure. WARNING LOW OIL PRESSURE IS NOT AN INDICATION OF LOW OIL LEVEL. FOR THE BEST POSSIBLE PROTECTION, CATTRON RECOMMENDS USING OUR SOLID-STATE OIL LEVEL SHUTDOWN SWITCH. Note: Most shutdown switches are grounded through the switch body. -
Page 9: Temperature Led (Red)
WARNING IF THE TEMPERATURE SWITCH IS NOT IN CONTACT WITH COOLANT DUE TO COOLANT LOSS, THE ENGINE IS NOT PROTECTED FROM OVERHEATING. FOR THE BEST POSSIBLE PROTECTION, CATTRON RECOMMENDS USING OUR SOLID-STATE COOLANT LEVEL SHUTDOWN SWITCH. Note: Most shutdown switches are grounded through the switch body. -
Page 10: Harness
USE CATTRON PROVIDED CAVITY PLUGS TO SEAL THE CONNECTOR IF WIRES ARE REMOVED. 3.3.2 Unsealed Connectors For unsealed connectors exposed to the elements, Cattron recommends using dielectric grease to protect contacts. WARNING CATTRON DOES NOT RECOMMEND USING SEALANT WITH UNSEALED CONNECTORS. -
Page 11: Battery Circuit Requirements
WARNING DISCONNECTING THE BATTERY WHILE THE ENGINE IS RUNNING MAY DAMAGE ELECTRICAL COMPONENTS. WHEN USING A BATTERY DISCONNECT SWITCH, CATTRON RECOMMENDS USING A 2-POLE SWITCH TO DISCONNECT BOTH THE BATTERY AND ALTERNATOR OUTPUT. 3.4.2 Battery Negative Connection (Grounding) WARNING IMPROPER GROUNDING CAN CAUSE ELECTRICAL NOISE OR UNRELIABLE OPERATION AND MAY DAMAGE THE PANEL OR OTHER COMPONENTS. -
Page 12: Voltage Drop
THE INSTALLATION OF VOLTAGE TRANSIENT SUPPRESSION AT THE TRANSIENT SOURCE IS REQUIRED. CATTRON FOLLOWS SAE RECOMMENDED ELECTRICAL ENVIRONMENT PRACTICES. Inductive devices such as relays, solenoids and motors generate voltage transients and noise in electrical circuits. Unsuppressed voltage transients can exceed SAE specifications and damage electronic controls. -
Page 13: Welding On Equipment With Electronic Controls
LOFA MC704 Panel Operation and Troubleshooting Manual Welding on Equipment with Electronic Controls Proper welding procedures are required to avoid damage to electronic controls, sensors and associated components. The component should be removed for welding if possible. The following procedure must be followed if the component must be welded while installed on equipment with electronic controls. -
Page 14: Troubleshooting
LOFA MC704 Panel Operation and Troubleshooting Manual Troubleshooting General Troubleshooting For additional information, refer to the engine manufacturer troubleshooting guide. No response from starter motor Possible Cause Possible Remedy No battery voltage to starter Verify wiring and battery connection (power and ground) Battery discharged Charge or replace battery;... -
Page 15: Fuel Run/Stop Solenoid Troubleshooting
LOFA MC704 Panel Operation and Troubleshooting Manual Alternator not charging battery Possible Cause Possible Remedy Broken or slipping alternator drive belt Adjust or replace alternator drive belt Alternator not excited Verify excitation circuit connected; replace faulty regulator; add additional excitation resistor Alternator output not connected Install charge wire Alternator not grounded... -
Page 16: Preheat Troubleshooting
LOFA MC704 Panel Operation and Troubleshooting Manual Preheat Troubleshooting Engine is hard to start in cold conditions Possible Cause Possible Remedy Start attempt before preheat complete Wait for preheat time to elapse, and crank as soon as time elapses Incorrect preheat specification Correct panel configuration;... -
Page 17: Testing Shutdown Inputs
LOFA MC704 Panel Operation and Troubleshooting Manual 4.4.1 Testing Shutdown Inputs Shutdown switches signal a fault by ground contact in most systems. Shutdown operation can be verified by grounding the shutdown inputs individually. It may be necessary to remove the wire from the shutdown switch to perform this test. -
Page 18: Typical Schematics
LOFA MC704 Panel Operation and Troubleshooting Manual Typical Schematics The following figures show typical schematics. The details will vary from installation to installation. Please see the specific schematics for the particular installation for details. 9M02-3000-A001-EN Revision D... - Page 19 LOFA MC704 Panel Operation and Troubleshooting Manual 9M02-3000-A001-EN Revision D...
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Page 20: Additional Information
LOFA MC704 Panel Operation and Troubleshooting Manual Additional Information Products/Deliverables Licensed Product Information • Software codes with product numeric values equal to 001-xxxx-yyyy-zzz; where xxxx, yyyy, and zzz equal (0000...9999) • Software codes qualified under the same numeric regimen detailed above or including the verbal description of “CANPlus™”... - Page 21 LOFA MC704 Panel Operation and Troubleshooting Manual Technical Support For remote and communication control systems support, parts and repair, or technical support, visit us online at: www.cattron.com/contact. 9M02-3000-A001-EN Revision D...
- Page 22 Due to continuous product improvement, the information provided in this document is subject to change without notice. Cattron Support For remote and communication control systems support, parts and repair, or technical support, visit us online at: www.cattron.com/contact Cattron North America Inc., 655 N River Rd NW, Suite A, Warren, OH 44483 9M02-3000-A001-EN Revision D...
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