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TP-5867 11/02

Section 3 Troubleshooting

Use the following tables as a quick reference in
troubleshooting individual problems.

Generator set

faults are listed in groups and include likely causes and
remedies. The reference column provides additional
sources of information in this and related manuals

regarding the problem and solution. Corrective action
and testing in many cases requires knowledge of
electrical and electronic circuits. Have an authorized
service distributor/dealer perform service work.

General Troubleshooting Chart

Problem

Possible Cause

Corrective Action

Reference

Generator set
d

Weak or dead battery

Recharge or replace battery.

Operation Manual (O/M)

does not crank

Reversed or poor battery
connections

Check connections.

—

Defective starter relay

Check continuity of circuit.

Sections 6, Component Testing
and Adjustment, and 9, Wiring
Diagrams

Defective starter

Rebuild or replace.

Engine Service Manual (S/M)

Defective controller start/stop
switch

Test function of switch.

Sections 4, Controller
Troubleshooting and 9, Wiring
Diagrams

Fuse blown in controller

Replace fuse; if fuse blows again,
check circuit and components.

Section 4, Controller
Troubleshooting, and O/M

Open circuit in wiring, terminals
pin, circuit board, etc.

Check continuity.

Sections 4, Controller
Troubleshooting and 9, Wiring
Diagrams

Defective controller circuit board

Check circuit board operation.

Section 4, Controller
Troubleshooting

Overcrank shutdown

Check engine fuel and ignition
systems. Shutdown occurs after
30 seconds of cyclic cranking.

Section 6.11, Fuel Systems, and
Engine S/M for ignition system
information

Faulty spark plugs or loose
connections

Replace and regap spark plugs.

Section 2.3, Spark Plugs

Defective fuel regulator/valve

Check regulator/valve operation.

Sections 6.11, Fuel Systems, and
4, Controller Troubleshooting

Faulty ground (--) connection

Clean and retighten.

—

Insufficient fuel pressure on
LP/natural gas systems

Check fuel pressure

Section 6.11.3, Fuel Regulators

Weak or dead battery

Recharge or replace.

Section 2.7, Battery

Generator set

k b

Fuel not turned on

Turn on fuel valve.

—

cranks but
does not start

Air cleaner clogged

Clean or replace.

Section 2.4, Air Cleaner Element
and Precleaner

Defective ignition system spark
control or ignition coil

Test and/or replace components.

Engine S/M

Blown voltage regulator fuse

Replace fuse. If fuse blows again,
check generator components.

O/M

Blown controller fuse

Replace fuse; if fuse blows again,
check circuit and components.

Section 4, Controller
Troubleshooting, and O/M

Open wiring terminal or pin
(P2 connector)

Check continuity.

Section 9, Wiring Diagrams

Overspeed setting on electronic
governor board set too low

Readjust overspeed on governor
board.

—

Содержание 11RMY

Страница 1: ...Industrial Generator Sets Models 8 5RMY 11RMY Controllers Relay TP 5867 11 02d Service...

Страница 2: ...eadily available for future reference Record field installed kit numbers after installing the kits Generator Set Identification Numbers Record the product identification numbers from the generator set...

Страница 3: ...e Battery 14 2 7 2 Checking Battery Electrolyte Level 14 2 7 3 Checking Electrolyte Specific Gravity 14 2 8 Storage Procedure 15 2 8 1 Lubricating System 15 2 8 2 Fuel System 15 2 8 3 Internal Engine...

Страница 4: ...uel Systems 53 6 11 1 Gas Piping 53 6 11 2 Fuel Solenoid Valve 53 6 11 3 Fuel Regulators 53 6 11 4 Fuel Conversion Single Fuel Models 54 6 11 5 Fuel Metering Valve Adjustment 54 6 11 6 Fuel Conversion...

Страница 5: ...ttery charger 3 Remove the battery cables negative lead first Reconnect the negative lead last when reconnecting the battery Follow these precautions to prevent starting of the generator set by an aut...

Страница 6: ...Use extreme care when handling storing and using fuels WARNING The fuel system Explosive fuel vapors can cause severe injury or death Vaporized fuels are highly explosive Use extreme care when handli...

Страница 7: ...quipment manual Install the battery charger in compliance with local codes and ordinances Connecting the battery and the battery charger Hazardous voltage can cause severe injury or death Reconnect th...

Страница 8: ...nds feet hair clothing and test leads away from the belts and pulleys when the generator set is running Replaceguards screens and covers before operating the generator set Notice NOTICE This generator...

Страница 9: ...ents are very important to safe and efficient operation Inspect the parts often and perform required service at the prescribed intervals Maintenance work must be performed by appropriately skilled and...

Страница 10: ...nal office Africa Europe Middle East London Regional Office Langley Slough England Phone 44 1753 580 771 Fax 44 1753 580 036 Asia Pacific Power Systems Asia Pacific Regional Office Singapore Republic...

Страница 11: ...t of the field to monitor and stabilize voltage See Figure 1 1 for alternator specifications Alternator Specification 8 5 11RMY Frequency Hz 50 60 Phase Single Phase Number of leads 4 Excitation metho...

Страница 12: ...e Service Manual Model Voltage Phase Hz Generator Model Standby kW kVA Nat Gas Standby kW kVA LP Gas 8 5RMY 120 240 1 60 2F4 7 0 7 0 8 5 8 5 8 5RMY 110 220 1 50 2F4 6 3 6 3 7 5 7 5 11RMY 120 240 1 60...

Страница 13: ...ve Spark plug gap mm in 0 76 0 030 Spark plug tightening torque Nm ft lb 24 4 29 8 18 22 Ignition system Capacitor Discharge Smart Spark Capacitor Dis charge Starter motor cranking current at 70_ F El...

Страница 14: ...il check 4 Oil drain hose 5 Oil fill 6 Spark plugs 7 Air cleaner 8 Fuel valve Do not adjust on emission certified models 9 Controller 10 Nameplate 11 Gas regulator assembly 12 Rodent screens 13 Engine...

Страница 15: ...6 Spark plugs 7 Air cleaner 8 Controller 9 Nameplate 10 Multi fuel block 11 Gas regulator assembly 12 Fuel solenoid valve 13 Rodent screens 14 Engine starting battery location 15 Engine oil cooler 16...

Страница 16: ...TP 5867 11 02 6 Section 1 Specifications Notes...

Страница 17: ...thorized distributor dealer perform generator set service Alternator Service Under normal operating conditions the generator set alternator does not require scheduled service Refer to the service sche...

Страница 18: ...on It does not protect against damage because of operating with the oil level below the safe range it is not a low oil level shutdown 2 2 2 Oil Level Check Check the oil level regularly and add oil as...

Страница 19: ...peration X X Six Months Tighten control and power wiring connections X Yearly Wire cable insulation breakdown X 3 Years or 500 Hrs Engine And Mounting General inspection D Weekly Air cleaner service D...

Страница 20: ...ing clip A 358000A C 1 2 3 1 Oil drain hose 2 Oil fill 3 Oil filter Figure 2 5 Engine Service Side 2 Replace the oil filter a Remove the oil filter by rotating it counterclockwise with an oil filter w...

Страница 21: ...service schedule Service the air cleaner more often if the generator set operates under dusty or dirty conditions Refer to Maintenance and Service Parts in the Introduction section of this manual for...

Страница 22: ...ith the cover retaining knob finger tighten only e Check the element cover for damage and fit Replace all damaged air cleaner components Check the condition of the rubber seals and replace them if nec...

Страница 23: ...quid with water and dry the area 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 ti...

Страница 24: ...olyte level before each startup Remove the filler caps and verify that the electrolyte level reaches the bottoms of the filler holes see Figure 2 12 Refill as necessary with distilled water or clean t...

Страница 25: ...ure Correction 2 8 Storage Procedure Perform the following storage procedure before taking a generator set out of service for three months or longer Follow the engine manufacturer s recommendations if...

Страница 26: ...2 8 4 Exterior Prepare the exterior for storage as follows 1 Clean the exterior surface of the generator set 2 Seal all engine openings except for the air intake with nonabsorbent adhesive tape 3 To p...

Страница 27: ...c Check continuity Sections 4 Controller Troubleshooting and 9 Wiring Diagrams Defective controller circuit board Check circuit board operation Section 4 Controller Troubleshooting Overcrank shutdown...

Страница 28: ...pect fuel lines suddenly Fuel lines too long Check fuel line length Section 6 11 1 Gas Piping Air cleaner clogged Replace element Section 2 4 Air Cleaner Element and Precleaner Fuse blown in controlle...

Страница 29: ...leaner p Generator overloaded Reduce load O M Faulty spark plug s Replace and regap plug s Section 2 3 Spark Plugs Faulty spark plug wire s Replace spark plug wires Engine S M Engine not running at ra...

Страница 30: ...tery connections Defective battery Check battery electrolyte level and specific gravity batteries with filler caps only Section 2 7 Battery High generator output voltage Engine speed too high Check en...

Страница 31: ...tor set Reduce load O M No battery voltage to voltage regulator during cranking and terminals on regulator Check for DC voltage at voltage regulator terminals listed Sections 6 3 Voltage Regulator and...

Страница 32: ...TP 5867 11 02 22 Section 3 Troubleshooting Notes...

Страница 33: ...5 X GM16902 GA1 X GM24829 GA1 X 11RMY PA 195022 X PA 195026 X GM16902 GA2 X GM24829 GA2 X Figure 4 1 Generator Set Controllers A 358076 L GRD 68 68 67 67 FP FP FN FN 70 70 7N 7N 3 4 32 32 1 Remote sta...

Страница 34: ...on during generator start run stop and fault shutdown modes Use this as a starting point for controller fault identification Use the LEDs on the controller circuit board to assist in the troubleshooti...

Страница 35: ...ay schematic 8 P1 connector 9 K2 relay 10 K1 relay 11 Circuit board part number 12 LED2 13 LED5 11 Figure 4 6 Basic Controller Circuit Board 358095 13 GM10064 11 3 10 2 6 8 14 12 5 1 Overspeed adjustm...

Страница 36: ...itions listed below the fault shutdown relay energizes and the corresponding LED lights The relay s normally open contacts close The normally closed relay contacts open to deenergize the K25 relay The...

Страница 37: ...l coating transparent insulation from component terminals Use Figure 4 9 and the controller circuit board illustration see Figure 4 6 or Figure 4 7 The controller circuit board has light emitting diod...

Страница 38: ...GM10064 1 Overspeed adjustment potentiometer R17 2 Cyclic crank potentiometers 1 2 Figure 4 11 Integrated Controller Circuit Board Cyclic Crank Potentiometer Location 4 4 1 Adjustment The ON and OFF...

Страница 39: ...et master switch in the OFF position 2 Disconnect power to the battery charger if equipped 3 Disconnect the generator set engine starting battery negative lead first 4 Remove the generator set housing...

Страница 40: ...TP 5867 11 02 30 Section 4 Controller Troubleshooting Notes...

Страница 41: ...ections of start stop switch N 4 47 D Check battery condition and connections No Yes Is there voltage at the cyclic crank relay or starter relay No Yes Faulty relay Replace circuit board D Load test b...

Страница 42: ...pressure Check for overspeed governor voltage regulator and overcrank conditions Engine fault check fuel supply spark plug ignition coil etc Check for 12 volts DC at fuel valve No Engine wiring harnes...

Страница 43: ...rams Generator set must be running while performing this test Test magnetic pickup operation as described in Section 7 Magnetic Pickup If specified voltage is present and magnetic pickup tests good re...

Страница 44: ...TP 5867 11 02 34 Section 5 Generator Relay Controller Troubleshooting Notes...

Страница 45: ...oltage regulator s 10 amp fuse before performing the separate excitation procedure See Figure 4 2 or Figure 4 3 for the fuse location If the fuse is not blown use the following procedure to separately...

Страница 46: ...3 Start the engine and check that the ammeter reading remains stable An increasing meter reading indicates a shorted rotor A meter reading decreasing to zero or an unstable reading suggests a running...

Страница 47: ...wer sources before servicing the equipment Configure the installation to electrically ground the generator set transfer switch and related equipment and electrical circuits to comply with applicableco...

Страница 48: ...adjustment connect a 10 kOhm 1 2 watt minimum rheostat customer provided across terminals 33 and 66 on the PowerBoost IIIE voltage regulator See Figure 6 6 The rheostat provides a 5 volt adjustment r...

Страница 49: ...il the regulator reaches the desired output voltage 5 Rotate the stability potentiometer clockwise until the light flicker minimizes 6 Readjust the voltage adjustment potentiometer if necessary 7 Set...

Страница 50: ...ance Check 6 Perform a megohmmeter test to determine whether the rotor is shorted to ground a Raise and secure the brushes away from the slip rings by inserting a retaining wire in the brush holder ho...

Страница 51: ...the stator leads as shown in Figure 6 10 Note Leads 1 2 3 and 4 are the generator output leads Leads 33 44 and 55 are the voltage regulator sensing and supply leads Refer to the schematic in Figure 6...

Страница 52: ...ed slip rings sticking brushes a loose brush holder or poor brush contact causes arcing The brushes must be free to move within the holder and be held in contact with the slip rings by the springs Whe...

Страница 53: ...at each component This verifies that the switches function and that voltage is present at each component 6 7 3 Continuity Checks To further check generator set components disconnect the battery and re...

Страница 54: ...is found check for an open circuit and or a blown fuse Voltage regulator circuit 10 amp fuse P10 5 and stator lead 55 at the fuse holder relay controller R x 100 OFF RESET Zero ohms continuity If no...

Страница 55: ...he generator set shuts down after approximately 25 35 seconds of operation Remove the jumper wire from the LOP switch and ground Start the generator set and run it for at least 25 35 seconds to verify...

Страница 56: ...f the input speed signal from the magnetic pick up will result in a low or idle speed condition A potentiometer on the governor controller allows adjustment of the engine speed within the 50 60Hz rang...

Страница 57: ...otor 2 Carburetor throttle linkage 3 Carburetor mounting holes 3 Figure 6 16 Stepper Motor and Carburetor 6 9 4 Governor System Operation Test If the engine continues to operate erratically after the...

Страница 58: ...Procedure Summary 5 If the voltmeter displays less than 1 75 volts AC check the air gap as described in the following steps before replacing the sensor Verify that the magnetic pickup air gap is 1 02...

Страница 59: ...t The engine speed determines the generator output frequency 60 Hz units operate at 3600 rpm and 50 Hz units run at 3000 rpm Adjust the engine governor to change the output frequency using the followi...

Страница 60: ...4 6 or Figure 4 7 to identify the potentiometer used to adjust the overspeed setting Do not use the overspeed potentiometer on the governor Perform the following procedure with the generator set runni...

Страница 61: ...steel piece should be at least 4 sq cm 1 4 sq in The voltmeter reading should equal the source voltage 7 Remove the iron or steel from the sensing surface The voltmeter should indicate no voltage 8 R...

Страница 62: ...6 7 11 10 9 6 7 11 10 13 11 19 10 17 9 16 13 11 19 M1 M4 M3 M2 MP MP AD 70A M1 M4 M3 M2 MP MP AD 70A P9 J9 P4 J4 P7 J7 J5 P5 70A To P5 2 70A 3 3 70 7 6 5 4 3 2 1 TP5867722 1 Governor controller circui...

Страница 63: ...ate for each model Maximum Pipe Length m ft Pipe Size 8 5RMY 11RMY 3 4 in NPT 18 3 60 9 2 30 1 in NPT 61 200 30 100 1 1 4 in NPT 91 5 300 68 6 225 Figure 6 25 Maximum Natural Gas Pipe Length Generator...

Страница 64: ...alve when changing fuels When switching from natural gas to LP gas or vice versa verify that the engine speed meets specifications The electronic governor should compensate for different types of fuel...

Страница 65: ...the RUN position to start the generator set 9 Allow the generator set to run until the engine reaches normal operating temperature 10 With the generator set at normal operating temperature apply 90 1...

Страница 66: ...iolate federal or state laws The manufacturer ships the generator set with the fuel system connected for natural gas To convert to LP gas use the following procedure to move the fuel line from the nat...

Страница 67: ...Clean the hose fitting with a dry cloth or brush apply fresh pipe sealant to the threads and install the fitting into the LP or natural gas port Note Do not adjust the fuel metering valves 9 Slide the...

Страница 68: ...TP 5867 11 02 58 Section 6 Component Testing and Adjustment Notes...

Страница 69: ...et as follows 1 Move the generator set master switch to the OFFposition 2 Disconnectthepowertothebatterycharger 3 Remove the battery cables negative lead first Reconnect the negative lead last when re...

Страница 70: ...ividual performing the reconnection to meet all the electrical codes See Figure 7 2 for four lead reconnectable single phase generator set voltage options 60 Hz 50 Hz 120 Volts 110 Volts 120 240 Volts...

Страница 71: ...o or purchase a new ammeter scaled twice the existing ammeter and install the new ammeter 4 3 2 1 Stator Leads LO GRD LO Neutral Ground Load Side Line Side Two pole circuit breaker L1 TP 5867 L0 L1 60...

Страница 72: ...TP 5867 11 02 62 Section 7 Generator Reconnection Notes...

Страница 73: ...witch in the OFF position b Remove eight screws to remove the battery compartment panel c Disconnect power to the battery charger if equipped d Disconnect the generator set engine starting battery neg...

Страница 74: ...a Remove two bolts securing the alternator vibromount mounting plate to the skid See Figure 8 5 b Raise the alternator end of the generator set enough to place a thin block of wood beneath the rear of...

Страница 75: ...t See Figure 8 8 a Mark the leads connected to the speed sensor and disconnect the leads b Remove the screws and washers securing the speed sensor to the speed sensor bracket c Install the new speed s...

Страница 76: ...and washers b Torque the bolts to 28 ft lb 38 Nm See Figure 8 10 2 Install the rotor See Figure 8 9 a Apply a small amount of antisieze compound to the end of the engine crankshaft for rotor assembly...

Страница 77: ...mounting surface and brush holder to center the brushes on the slip rings See Figure 8 13 See Section 6 6 Brushes for more information c Set the gap between the magnetic actuator and the speed sensor...

Страница 78: ...8 in lb 10 Nm TP56328 1 2 3 4 5 6 1 Exhaust duct top 2 Engine muffler 3 1 4 20 hardware 4 Exhaust duct bottom 5 1 4 20 x 0 625 in bolts and 1 4 washers 6 3 8 16 hardware Figure 8 15 Exhaust Muffler Du...

Страница 79: ...3 Battery compartment panel 4 Mounting pad 5 Alternator end housing panel Figure 8 17 Generator Set Weather Housing 10 Return the generator set to operation a Check that the generator set master swit...

Страница 80: ...TP 5867 11 02 70 Section 8 Disassembly Reassembly Notes...

Страница 81: ...termine the correct version number for a given model number and spec number Find that version number in the Controller Wiring Diagrams Reference and determine the wiring diagrams by choosing the type...

Страница 82: ...TP 5867 11 02 72 Section 9 Wiring Diagrams Notes...

Страница 83: ...TP 5867 11 02 73 Section 9 Diagrams and Drawings Relay Controller Schematic Diagram 1 Phase ADV 6297 B...

Страница 84: ...TP 5867 11 02 74 Section 9 Diagrams and Drawings Relay Controller Point to Point Wiring Diagram 1 Phase 358093 E...

Страница 85: ...TP 5867 11 02 75 Section 9 Diagrams and Drawings Relay Controller Schematic Diagram 1 Phase ADV 6297 E...

Страница 86: ...TP 5867 11 02 76 Section 9 Diagrams and Drawings Relay Controller Point to Point Wiring Diagram 1 Phase GM10164 A...

Страница 87: ...TP 5867 11 02 77 Section 9 Diagrams and Drawings Relay Controller Schematic Diagram ADV 6524...

Страница 88: ...TP 5867 11 02 78 Section 9 Diagrams and Drawings 6 Relay Controller Point to Point Wiring Diagram GM10619...

Страница 89: ...rmer Cu copper cu in cubic inch cw clockwise CWC city water cooled cyl cylinder D A digital to analog DAC digital to analog converter dB decibel dBA decibel A weighted DC direct current DCR direct cur...

Страница 90: ...on optional OS oversize overspeed OSHA Occupational Safety and Health Administration OV overvoltage oz ounce p pp page pages PC personal computer PCB printed circuit board pF picofarad PF power factor...

Страница 91: ...op of nut 3 Below top of nut Figure 1 Acceptable Bolt Lengths Steps for common hardware application 1 Determine entry hole type round or slotted 2 Determine exit hole type fixed female thread weld nut...

Страница 92: ...0 32 68 0 50 95 0 70 1 2 13 Nm ft lb 60 0 44 92 0 68 130 0 96 1 2 20 Nm ft lb 66 0 49 103 0 76 146 0 108 9 16 12 Nm ft lb 81 0 60 133 0 98 187 0 138 9 16 18 Nm ft lb 91 0 67 148 0 109 209 0 154 5 8 11...

Страница 93: ...nal External Tooth Lock Hardness Grades American Standard Grade 2 Grade 5 Grade 8 Grade 8 9 Hex Socket Head Metric Number stamped on hardware 5 8 shown 5 8 Allent head screw is a trademark of Holo Kro...

Страница 94: ...4 2 7 16 14 x 1 00 X 6024 8 7 16 14 x 1 25 X 6024 3 7 16 14 x 1 50 X 6024 4 7 16 14 x 2 00 X 6024 11 7 16 14 x 2 75 X 6024 12 7 16 14 x 6 50 X 129 15 1 2 13 x 75 X 129 17 1 2 13 x 1 00 X 129 18 1 2 13...

Страница 95: ...50 x 25 M961 10030 60 M10 1 25 x 30 M933 10030 60 M10 1 50 x 30 M933 10030 82 M10 1 50 x 30 M961 10035 60 M10 1 25 x 35 M933 10035 60 M10 1 50 x 35 M933 12016 60 M12 1 75 x 16 M933 12020 60 M12 1 75...

Страница 96: ......

Страница 97: ......

Страница 98: ...er Wisconsin 53044 Phone 920 565 3381 Fax 920 459 1646 For the nearest sales service outlet in the US and Canada phone 1 800 544 2444 KohlerPowerSystems com Kohler Power Systems Asia Pacific Headquart...

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