Operation Residential/Commercial Generator Sets Models: 14/20RESA 14/20RESAL Controllers: RDC2 DC2 TP-6804 12/11
California Proposition 65 WARNING Engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. Product Identification Information Product identification numbers determine service parts. Record the product identification numbers in the spaces below immediately after unpacking the products so that the numbers are readily available for future reference. Record field-installed kit numbers after installing the kits.
Table of Contents Product Identification Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Safety Precautions and Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents, continued 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 RDC2 Controller Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Overview Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Engine Metering Menu . . . . . . . . . . . . . . . . .
Table of Contents, continued 5.8 Storage Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.8.1 Lubricating System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.8.2 Fuel System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.8.3 Cylinder Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.8.
Notes 6 TP-6804 12/11
Safety Precautions and Instructions IMPORTANT SAFETY INSTRUCTIONS. Electromechanical equipment, including generator sets, transfer switches, switchgear, and accessories, can cause bodily harm and pose life-threatening danger when improperly installed, operated, or maintained. To prevent accidents be aware of potential dangers and act safely. Read and follow all safety precautions and instructions. SAVE THESE INSTRUCTIONS.
Battery gases. Explosion can cause severe injury or death. Battery gases can cause an explosion. Do not smoke or permit flames or sparks to occur near a battery at any time, particularly when it is charging. Do not dispose of a battery in a fire. To prevent burns and sparks that could cause an explosion, avoid touching the battery terminals with tools or other metal objects. Remove all jewelry before servicing the equipment.
Fuel System WARNING Hazardous Noise CAUTION Explosive fuel vapors. Can cause severe injury or death. Hazardous noise. Can cause hearing loss. Use extreme care when handling, storing, and using fuels. Never operate the generator set without a muffler or with a faulty exhaust system. The fuel system. Explosive fuel vapors can cause severe injury or death. Vaporized fuels are highly explosive. Use extreme care when handling and storing fuels.
Welding on the generator set. Can cause severe electrical equipment damage. Before welding on the generator set perform the following steps: (1) Remove the battery cables, negative (--) lead first. (2) Disconnect all engine electronic control module (ECM) connectors. (3) Disconnect all generator set controller and voltage regulator circuit board connectors. (4) Disconnect the engine batterycharging alternator connections. (5) Attach the weld ground connection close to the weld location.
Introduction This manual provides operation and maintenance instructions for residential/commercial model 14/20RESA and RESAL generator sets equipped with Kohler RDC2 or DC2 generator set/transfer switch controllers. See Figure 1. The RDC2 and DC2 controllers control the generator set and the optional Model RXT transfer switch. This generator set is approved for use in stationary applications in locations served by a reliable utility power source.
Nameplate The following illustration shows a typical generator set nameplate. Copy the model, serial, and specification numbers from the nameplate into the spaces provided in the product information section on the inside front cover of this manual. See the service views in Section 1.8 for the nameplate location.
Service Assistance For professional advice on generator set power requirements and conscientious service, please contact your nearest Kohler distributor or dealer. D Consult the Yellow Pages under the heading Generators—Electric. D Visit the Kohler Power Systems website at KohlerPower.com. D Look at the labels and stickers on your Kohler product or review the appropriate literature or documents included with the product. D Call toll free in the US and Canada 1-800-544-2444.
Notes 14 Service Assistance TP-6804 12/11
Section 1 Descriptions and Service Views 1.1 Introduction 1.4 Alternator The generator set specification sheets provide specific generator and engine information. Refer to the spec sheet for data not supplied in this manual. Consult the generator set service manual, engine operation manual, and engine service manual for additional specifications. Obtain copies of the latest spec sheets, manuals, diagrams, and drawings from your local distributor/ dealer.
The controller’s 2-line LCD screen displays status messages and system settings that are clear and easy to read, even in direct sunlight or low light. RDC2 Controller Features D Front-access mini USB connector for SiteTecht connection D Front access mini-breaker protects the alternator D Integral Ethernet connector for Kohlerr OnCuet D Six-button keypad D Built-in 2.
DC2 Controller Features D Automatic start with programmed cranking cycle D Four-button keypad: D Exercise modes OFF, AUTO, RUN, and EXERCISE pushbuttons D LED indicators for OFF, AUTO, and RUN modes d Unloaded weekly exercise with complete system diagnostics d Unloaded full-speed exercise D LCD display: d Loaded full-speed exercise (Model RXT ATS d Two lines x 16 characters per line required) d Backlit display with adjustable contrast for excellent visibility D Front-access mini USB connector
1.7 Accessories The following optional accessories are offered for the RESA and RESAL generator sets. 1.7.1 Carburetor Heater An optional carburetor heater is recommended for improved cold starting in locations where the ambient temperature drops below 0_C (32_F). The carburetor heater prevents condensation and carburetor icing. The heater requires a continuous source of 120 VAC power. See the generator set Installation manual for more information. 1.7.
1.8 Service Views 2 5 1 8 7 6 3 4 10 9 11 12 13 14 15 16, 17 18 19 AIR INTAKE SIDE --PANEL REMOVED TO SHOW DETAIL 20 26 21 22 25 24 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. Hinged inner cover Hinged roof Air intake Lock Locking tool, provided with generator set Exhaust outlet Oil check (dipstick) Oil fill Lifting holes Muffler Air cleaner Oil filter Line circuit breaker USB connector (for firmware updates) Figure 1-2 TP-6804 12/11 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26.
Notes 20 Section 1 Descriptions and Service Views TP-6804 12/11
Section 2 Generator Set Operation 2.1 Prestart Checklist To ensure continued satisfactory operation, perform the following checks or inspections before or at each startup, as designated, and at the intervals specified in the service schedule. In addition, some checks require verification after the unit starts. Air Cleaner. Check for a clean and installed air cleaner element to prevent unfiltered air from entering the engine. 2.3 Generator Set Operation 2.3.
temperature level, or if the temperature rises above the high limit during the cooldown cycle. If a transfer switch other than the Model RXT is used, an additional engine cooldown time delay may be programmed on the transfer switch. To allow the smart engine cooldown on the RDC2 controller to operate most efficiently, set the cooldown time on the transfer switch controller to zero or the minimum time allowed. Refer to the instructions provided with the transfer switch for more information.
The RDC2 and DC2 controllers can be set to automatically run the generator set at the same time and day each week. Exercising the generator set weekly or every two weeks is required to keep the engine and alternator in good operating condition. Three exercise modes are available: unloaded cycle, unloaded full speed, and loaded full speed. See Sections 2.4.2 through 2.4.4 for information about the exercise modes.
RDC2/DC2 controller to check the output power for correct voltage, frequency, and stability. When the engine is running at full speed, the controller verifies that the voltage and frequency are within acceptable limits. A fault message is displayed if the voltage or frequency is out of range. D Oil pressure. Oil pressure is verified to ensure proper lubrication of critical engine components. Pressure is monitored at both reduced and full speeds.
2.5.4 Resetting the Controller after a Fault Shutdown Always identify and correct the cause of a fault shutdown before resetting the controller. Check the fault message displayed on the controller and refer to Figure 2-3 to identify and correct the fault condition before proceeding. Contact an authorized distributor/dealer for service, if necessary. 3. Press Select. displayed. Confirm Clear Fault: NO is 4. Press the Down arrow button. Confirm Clear Fault: YES is displayed. 5.
Warning (W) or Fault Message Shutdown (SD) Condition AC Sens Lost W (1 sec.) SD (3 sec.) * Check AC sensing lost. In Auto mode, generator output Contact an authorized AC sensing is lost. Starts 10 seconds after distributor/dealer for service. crank disconnect. Warning: after 1 second if no output detected after crank disconnect. Shutdown: after 3 seconds if voltage was present and then lost. Accy PwrOver Warning W Accessory Power Overload.
Warning (W) or Shutdown (SD) Condition Fault Check Generator Frequency High SD * Governed frequency exceeds 110% of the system’s frequency setpoint for more than 10 seconds. Function becomes active 10 seconds after engine start (10 second inhibit). Contact an authorized distributor/dealer for service. Generator Frequency Low SD * Governed frequency falls below 90% of the system frequency setting for more than 10 seconds, or 1 Hz below the system frequency setting for more than 60 seconds.
Notes 28 Section 2 Generator Set Operation TP-6804 12/11
Section 3 RDC2 Controller Operation 3.1 RDC2 Generator Set/ Transfer Switch Controller Model RESA generator sets are equipped with the RDC2 generator set/transfer switch controller. 1 Model RESAL generator sets are equipped with the DC2 controller. See Section 4 for DC2 controller operation information.
3.2.1 Controller Keypad 3.2.2 LED Indicators The RUN, OFF, and AUTO buttons control the generator set as described in Figure 3-3. LEDs above the RUN, OFF, and AUTO buttons indicate the mode of operation as shown in Figure 3-4. Use the Select, Up arrow, and Down arrow buttons to navigate through the menus and change settings, if necessary. See Section 2.3 for operation instructions.
3.2.3 LCD Display The controller is equipped with a two-line x 16 character backlit digital display with adjustable contrast. When the generator is running, the controller automatically scrolls through the displays shown in Figure 3-5. When the system is in AUTO, the screens shown in Figure 3-6 are displayed. When a fault or warning condition exists, the controller will show the corresponding message. See Section 2.5 for more information about faults. The display contrast is adjustable.
3.3 Controller Power The RDC2 controller is powered by the generator set engine starting battery and the built-in battery charger. Note: To disconnect controller power, disconnect the utility power to the generator set and disconnect the battery . If controller power is disconnected and reconnected, you will be prompted to set the time, date, and exerciser. The first setting will flash. Press the Up and Down arrow buttons to change the setting. Press Select to save the setting and move on to the next.
Changing Settings on the RDC2 Controller 1. Press the Select button to enter the main menu. 8. When the correct date is shown, press the Select button. The saved date is shown. Overview ----> Press: Display: 1.2 h Press: 2. Press the down arrow button until the desired menu is displayed. See Figure 3-9. Date and Time are used for this example. Date Press: Display: ----> Date: Display: 05Dec2011 4. To change the date and time settings, press the Select button again. The year will flash.
3.6 Setting the Exerciser Set the exerciser to automatically run the generator set for 20 minutes every week or every two weeks. 3.6.1 Setting the Exerciser at Controller Power--up When battery power is connected to the controller, you will be prompted to set the date and time, and then to set the exerciser. The first setting will flash. Press the Up and Down arrow buttons to change the setting. Press Select to save the setting and move on to the next. See Section 3.
Genset System ----> System Freq: XX.X Hz System Phase System Volt Battery V: HOLD: Next Exercise * Next Exercise HR:MN PM MM/DD/YY HR:MN PM MM/DD/YY HOLD: Exercise Mode: Exercise Mode: Loaded Unloaded Cycle/Unloaded Full/ Loaded Full HOLD: Exercise Freq: Exercise Freq: Weekly Weekly/Bi-Weekly Language: Contrast: 50 <---- Return tp6804 * If the exerciser has not been set, No Exercise Sch will be displayed.
3.7 RDC2 Controller Menus 3.8 Main Menu Controller menus display power system information, including status information for the engine, generator, and optional RBUS accessories, exercise settings, and event history. Some menus allow changes to the controller settings. Press the Select button once to bring up the main menu. Overview is displayed. See Figure 3-9. Press the down arrow button to step to the next menu, Engine Metering.
3.9 Overview Menu Overview ----> 1.2 h 3.10 Engine Metering Menu The engine metering menu displays engine status information as shown in Figure 3-11. This menu displays status information only. No settings can be changed from this menu. Active Alert (if any) Engine ----> Metering Genset Status Standby Eng Speed: 3600 RPM Oil Pressure: Switch: Normal Voltage: 240V Freq: 60.0Hz Oil Temp: 123 F Engine: 123F Oil Pressure: OK Battery: 12.3 V Battery 12.3V <---- Return Engine Runtime: 12345.
Voltage Calibration 3.11 Generator Metering Menu The generator metering menu displays the generator voltage and frequency. See Figure 3-12. DANGER Hazardous voltage. Will cause severe injury or death. This equipment must be installed and serviced by qualified electrical personnel. The voltage calibration mode can be entered from the Generator Metering menu. Contact a Kohler-authorized distributor/dealer for service.
3.12 Generator Set Information Menu 3.13 Genset Run Time Menu The generator set model number and serial numbers are displayed. No changes are allowed from this menu. Model and serial numbers are factory set and should not require changes in the field, except in the event that the controller is being replaced. A personal computer running Kohler SiteTech software is required to enter the generator set model number and serial numbers on a replacement controller.
3.14 Genset System Menu The genset system menu displays the system information shown in Figure 3-15. Generator sets are factory set and should not require changes to the system settings in the field. A Kohler authorized distributor or dealer can adjust these settings, if necessary. If the generator set is reconnected to a different voltage or the system settings require adjustment for some other reason, see Section 3.5 for instructions to enable editing and change the system settings.
The ATS Status menu displays Model RXT transfer switch and source information. 3.15 ATS Status Menu ATS menus appear if a Model RXT transfer switch is connected to the generator set. If no transfer switch is connected, or another model ATS is connected to the engine start connections, Remote ATS is displayed on the ATS Status screen. The voltage shown in these menus can be calibrated. Follow the safety precautions at the beginning of this manuals.
3.16 ATS Configuration Menu Note: The ATS Configuration menu appears only if a Model RXT transfer switch is connected. Use the ATS Configuration submenu to check the Model RXT transfer switch system settings and time delays, and change the settings, if necessary. ATS ----> Configuration Normal Freq: 12.3 Hz Normal Voltage: 12345.6 V Changing ATS Configuration Settings To enable editing, press the select button. The value flashes to indicate that it can be changed.
3.17 Date and Time Menu Date and Time The date and time will typically be set at controller power--up. To change the date, time, or time format (12 hour or 24 hour), use the Date and Time menu. See Figure 3-18. Date: 02Dec2011 Time: 12:34pm 3.18 Networking Information Menus Use the networking menus to view and adjust communication settings for systems with remote RBUS devices such as a PIM or LCM, and for systems that use the Kohlerr OnCuet Home Generator Management System.
3.18.1 Networking Status Submenu The Networking Status submenu contains settings for OnCuet. See the OnCue Software Operation Manual for information about the appropriate network settings for OnCue. Changes to these settings are not typically required. Networking----> Information Networking----> Status If DHCP is enabled, IP parameters are not displayed. If DHCP is disabled (i.e., if a static IP address is used), the IP parameters are displayed.
Password 3.18.2 Networking Configuration Submenu (OnCue Password) The networking Configuration menu includes settings used for communication with the Kohlerr OnCuet Home Generator Management System. For the initial OnCue setup, you will be required to reset the OnCue password on the RDC2 controller, and then enter it into the OnCue software. To reset the password, follow the instructions in Figure 3-21.
3.18.3 RBUS Information D Model RXT transfer switch The RBUS Information menu contains settings for remote modules that communicate with the RDC2 controller using RBUS protocol. This includes the following optional modules: D Programmable Interface Module (PIM) Networking----> Information D Load Control Module (LCM) Networking----> Status Networking----> Configuration RBUS ----> Information Modules Connected: 3 <---- Return Remote ----> Devices RD See Figure 3-23.
3.18.4 Remote Devices Submenu The serial numbers for the PIM and LCM are printed on the circuit boards inside the enclosures. Check the status of remote devices communicating through RBUS. Device types can include: D Model RXT ATS D Programmable Interface Module (PIM) D Load Control Module (LCM) From Figure 3-22: Remote ----> Devices S/N: XXXXXXXXX <<*DeviceType*>> S/N: XXXXXXXXX <<*DeviceType*>> <---- Return Module Status: Connected Comm. Errors: 12345 Comm.
3.19 Programmable Interface Module (PIM) Status Menu The PIM status menu displays the status of inputs and outputs connected to the programmable interface module (PIM). This is a status display menu only. Input and output settings cannot be changed from the RDC2 controller’s user interface. PIM Status: PIM 1 ----> <---- Return A personal computer running Kohlerr SiteTecht software is required to change the input and output settings. Contact an authorized distributor or dealer for service.
3.20 Load Control Module (LCM) Menus The Load Control menu displays the status of the Load Control Module (LCM) inputs and outputs, and allows a test of the LCM output relays. Load ----> Control Generator Current: Generator current is displayed as a percent of the maximum generator capacity. The load control module adds and sheds loads based on the generator current. The test function cycles the relays in the order of their priority.
3.21 Event Log The event log displays up to 1000 controller faults and notices, starting with the most recent event. Events are numbered 1--1000, with 1 being the most recent. Each event is displayed with the date and time of the event, the number of the event, a code to indicate whether the event was a warning (W), shutdown (S), or informational notice (I), the engine hours at the time of the event, and the event description. The time and date for notices (I) are not stored in the controller. 6.
Section 4 DC2 Controller Operation 4.1 DC2 Generator Set/ Transfer Switch Controller Model RESAL generator sets are equipped with the DC2 generator set/transfer switch controller. 1 Model RESA generator sets are equipped with the RDC2 generator set/transfer switch controller. See Section 3 for RDC2 controller operation information.
4.2.1 Controller Keypad 4.2.2 The RUN, OFF, and AUTO buttons control the generator set as described in Figure 4-3. LED Indicators LEDs above the RUN, OFF, and AUTO buttons indicate the mode of operation as shown in Figure 4-4. Use the EXERCISE button to set the exerciser on the DC2 controller. See Section 4.5 for instructions to set the exerciser. Note: A personal computer (laptop) with Kohlerr SiteTecht software is required for changing settings on the DC2 controller.
4.2.3 LCD Display Active Alert (if any) The controller is equipped with a two-line x 16 character backlit digital display with adjustable contrast. When the generator set is running, the messages shown in Figure 4-5 are displayed. When the system is in AUTO, the LCD display steps through the status messages shown in Figure 4-6. Genset State Standby When a fault or warning condition exists, the controller will show the corresponding message. See Section 2.
4.5 Exercise 4.5.3 The DC2 controller can be set to automatically run the generator set at the same time and day each week. Exercising the generator set weekly is required to keep the engine and alternator in good operating condition. To reset the exerciser to run at a different day and/or time, follow the procedure in Section 4.5.2 to enter the new exerciser settings. The old settings will be replaced by the new time and day.
4.7 Maintenance Timer 4.8 OnCue Password The maintenance timer keeps track of the time until the next recommended maintenance according to the maintenance schedule for the 14RESAL or 20RESAL generator set. Reset the maintenance timer after changing the oil and performing the other maintenance tasks recommended in Section 5. To set the OnCue password on the DC2 controller, To reset the maintenance timer: 1. Press and hold the OFF and AUTO buttons together until Maintenance Timer Reset is displayed. 2.
Notes 56 Section 4 DC2 Controller Operation TP-6804 12/11
Section 5 Scheduled Maintenance WARNING Accidental starting. Can cause severe injury or death. Disconnect the battery cables before working on the generator set. Remove the negative (--) lead first when disconnecting the battery. Reconnect the negative (--) lead last when reconnecting the battery. Disabling the generator set. Accidental starting can cause severe injury or death.
5.1.1 Service Schedule, 14RESA/RESAL Models Procedure System Component or Procedure Fuel See Section Visually Inspect Check Change Clean Test Flexible lines and connections X Main tank supply level Quarterly X Fuel piping Lubrication R Frequency Weekly X Yearly 5.2 Oil level X Crankcase breather hose 8 hours or before use X X Yearly or 500 hours Change oil X Yearly or 100 hours Replace filter X Yearly or 200 hours Cooling 5.
5.1.2 Service Schedule, 20RESA/RESAL Models Procedure System Component or Procedure Fuel See Section Visually Inspect Check Flexible lines and connections X Clean Test R Main tank supply level Frequency Quarterly X Fuel piping Lubrication Change Weekly X Yearly 5.2 Oil level X 8 hours or before each use Change oil X Yearly or 150 hours Replace filter X Yearly or 150 hours Crankcase breather hose X Oil cooler X Cooling Yearly or 500 hours X X Yearly 5.
5.2 Lubrication System 5.2.3 See the service schedules in Section 5.1 for oil change and oil filter replacement intervals. See the service views in Section 1.8 for the oil drain, oil check, oil fill, and oil filter locations. Use 5W-30 API (American Petroleum Institute) Service Class SG, SH, or SJ synthetic oil. Synthetic oil oxidizes and thickens less than other oils and leaves the engine intake valves and pistons cleaner. 5.2.1 5.2.
14/20RESAL (DC2): 3. Fill with oil. a. Fill the engine to the F mark on the dipstick. The engine oil capacity is shown in Figure 5-2. See Section 5.2.3, Engine Oil Recommendation, for oil selection. Generator Set Model 2. Release the OFF and AUTO buttons. Oil Capacity, L (qt.) 14RESA/RESAL 1.9 (2.0) 20RESA/RESAL 2.8 (3.0) Figure 5-2 1. Press and hold the OFF and AUTO buttons together until Maintenance Timer Reset is displayed. Engine Oil Capacity b. Reinstall the dipstick and the oil fill cap. c.
5.3 Spark Plugs 5.4 Air Cleaner Service Reset the spark plug gap or replace the plugs with new plugs as necessary. 5.4.1 1. Clean the area around the base of the spark plug to keep dirt and debris out of the engine. 2. Remove the spark plug and check its condition. Replace the spark plug if it is worn or if its reuse is questionable. Air Cleaner, 14RESA/RESAL Models The engine has a replaceable high-density paper air cleaner element with an oiled foam precleaner. See Figure 5-7. 1 3.
Precleaner Service 7. Replace the element if it is dirty, bent, or damaged. Use the following procedure to wash and oil the precleaner as indicated in the service schedule. Wash and oil the precleaner more often under extremely dusty or dirty conditions. 8. Check the air cleaner base. Make sure it is secure and not bent or damaged. Also check the element cover for damage and fit. Replace all damaged air cleaner components. Remove any loose dirt or debris from the air cleaner base.
Paper Element Service 5.5 Cooling System Replace the paper element at the intervals indicated in the service schedule. See Section 5.1.2 for the service schedule. See Figure 5-8 for the air cleaner components. The engine fan draws cooling air through the openings in the sides and end near the battery. The alternator fan draws cooling air through openings on the side walls of the enclosure. The cooling air mixes with the engine exhaust and is discharged at the exhaust outlet.
5.7 Battery WARNING Sulfuric acid in batteries. Can cause severe injury or death. Wear protective goggles and clothing. Battery acid may cause blindness and burn skin. Battery electrolyte is a diluted sulfuric acid. Battery acid can cause severe injury or death. Battery acid can cause blindness and burn skin. Always wear splashproof safety goggles, rubber gloves, and boots when servicing the battery. Do not open a sealed battery or mutilate the battery case.
5.8 Storage Procedure Perform the following storage procedure before removing the generator set from service for three months or longer. Follow the engine manufacturer’s recommendations for storage, if available. Note: Run the generator set monthly whenever possible. 5.8.1 Lubricating System 1. Operate the generator set until it reaches operating temperature, or about 15 minutes. 2. Stop the generator set. 3. While the engine is still warm, drain the engine lubrication oil from the engine crankcase. 4.
Section 6 Troubleshooting 6.1 Introduction 6.3.2 Use the troubleshooting charts in this section to diagnose and correct common problems. First check for simple causes such as a dead engine starting battery, loose connections, or an open circuit breaker. The charts include a list of common problems, possible causes of the problem, and recommended corrective actions. The line circuit breaker interrupts the generator output in the event of a fault in the wiring between the generator and the load.
6.5 Troubleshooting Figure 6-2 contains generator set troubleshooting, diagnostic, and repair information. Check for loose connections before replacing parts. Problem Possible Cause Corrective Action Controller Backlight turns off after about 1 minute with no display activity. backlight is off. Backlight will turn on when a button is pressed or the generator set starts. Controller display is off. Low or no battery voltage. Check connections. Check generator set battery. See Figure 6-2.
Appendix A Abbreviations The following list contains abbreviations that may appear in this publication. A, amp ABDC AC A/D ADC adj. ADV Ah AHWT AISI ALOP alt. Al ANSI AO APDC API approx. APU AQMD AR AS ASE ASME assy. ASTM ATDC ATS auto. aux. avg. AVR AWG AWM bat. BBDC BC BCA BCI BDC BHP blk. blk. htr. BMEP bps br. BTDC Btu Btu/min. C cal. CAN CARB CAT5 CB CC cc CCA ccw. CEC cert.
kg/cm2 kilograms per square centimeter kgm kilogram-meter kg/m3 kilograms per cubic meter kHz kilohertz kJ kilojoule km kilometer kOhm, kΩ kilo-ohm kPa kilopascal kph kilometers per hour kV kilovolt kVA kilovolt ampere kVAR kilovolt ampere reactive kW kilowatt kWh kilowatt-hour kWm kilowatt mechanical kWth kilowatt-thermal L liter LAN local area network L x W x H length by width by height lb.
KOHLER CO. Kohler, Wisconsin 53044 Phone 920-457-4441, Fax 920-459-1646 For the nearest sales/service outlet in the US and Canada, phone 1-800-544-2444 KohlerPower.com TP-6804 12/11 E 2011 by Kohler Co. All rights reserved.
