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SIMPLE TROUBLESHOOTING 

 

Listed below are the more simple solutions to some of the more common problems that are 
reported to the Service Department at Baldor Generators. These troubleshooting solutions are 
meant to be an aid for a person who has minimal electrical knowledge and experience. More in-
depth, detailed troubleshooting information for a person more knowledgeable and experienced in 
electricity can be obtained by contacting the Technical Service Department at Baldor Generators by 
calling (920) 236-4200. 
 

BEFORE BEGINNING TO TROUBLESHOOT THE GENERATOR SET, 
DISCONNECT THE SPARK PLUG (IF APPLICABLE) AND THE BATTERY 
(IF APPLICABLE) AND ALLOW THE UNIT TO COOL DOWN. 

                                     

EYE PROTECTION SHOULD BE WORN WHILE TROUBLESHOOTING 
THIS GENERATOR SET. 

 

THE CAPACITOR USED IN THIS GENERATOR SET CAN STORE AND

  

DISCHARGE A HIGH VOLTAGE CHARGE. BEFORE WORKING WITH, OR 
AROUND THE CAPACITOR YOU SHOULD DISCHARGE IT BY SHORTING 
THE CAPACITOR'S LEADS TOGETHER WITH A SCREWDRIVER THAT HAS 
AN INSULATED HANDLE YOU CAN HOLD ON TO. 

 

NO OUTPUT 

 

Possible Problems: 

 
1. 

The generator speed is too slow

. If the generator is turning too slow the generator set will 

     produce low or no output voltage. Make sure the generator is turning at the speed on the  
     nameplate. 
 
2

.   Broken wires or loose connections.

  Broken wires or loose connections can cause the  

     generator set to have low or no output voltage. Check all wiring for broken wires and  
     bad/loose connections. 
 
3

.   Bad capacitor

.  If the capacitor in your generator goes bad, your generator set will produce  

     no power. To check the capacitor, usually located on the tail end of the generator) you should  
     first discharge it as previously explained and then remove the wires that connect to it. Then  
     put a 12 VDC charge into it by connecting the leads of a 12 VDC battery across the capacitor's  
     terminals for one second. Then allow the capacitor to sit undisturbed and disconnected from  
     everything for 30 minutes. After 30 minutes measure the DC voltage potential across the  
     capacitor. If the capacitor is good, it will still have approximately 12 VDC charge in it. If the  
     capacitor is bad, the voltage potential across the capacitor will be substantially less. 
 
4.   

Bad circuit breaker

. If a circuit breaker opens up and will not reset, or the reset button is  

      not free-floating, your generator will not produce power out of all the receptacles. Check for  
      continuity across each circuit breaker with a continuity tester or ohmmeter (The wires must  
      be removed from the circuit breaker prior to checking it). 
 

                                                                               
 
 

 
 

- 170 – 

 
 

Summary of Contents for MAH30

Page 1: ...MANUAL FOR YOUR SERIES PC GENERATOR BALDOR GENERATORS 3815 Oregon Street Oshkosh WI 54902 Telephone 236 4200 Fax 920 236 4219 FORM S PSG 002 09 EFFECTIVE DATE 4 4 97 SERIES PC COVER MSW 00 REVISION DA...

Page 2: ...your generator set inspect it closely for shipping damage If you find some damage notify the transportation company immediately and file a freight damage claim Think of this manual as a tool to help...

Page 3: ...es are not normally lethal an involuntary jerk of the hand caused by a hot surface or by an electrical shock can result in injury Repair of electrical generating equipment requires specialized skills...

Page 4: ...le under the influence of alcohol drugs or medication When transporting or using a generator set with the wheel option secure the unit to prevent it from moving around Do not tamper with or change the...

Page 5: ...RATOR SETS Operate the generator set on a level surface If the generator set is tilted fuel spillage may result Handle fuel with care It is highly flammable Use only clean properly marked and approved...

Page 6: ...e generator set free of grass leaves and excessive grease and oils Allow the generator set to cool before transporting it or storing it indoors Have fire extinguisher accessible and nearby while opera...

Page 7: ...leshooting 10 Control Panel for PC25B PC30H 12 Control Panel for MAH30 MAV30 13 Control Panel for PC40H PC40B and PC50H 14 Control Panel for PC60H 15 Control Panel for PC90VE 16 Parts Breakdown PC25B...

Page 8: ...ll engines give off considerable heat when running Since the engine and your generator set uses air to keep it cool it is important that the temperature of the area in which it is located is does not...

Page 9: ...r home where the building is also supplied electricity by a local utility shall be connected only by a competent electrician and only after the main service entrance switch has been disconnected and l...

Page 10: ...RUNNING ALWAYS CLEAN UP ANY SPILLED FUEL AND ALLOW IT TO DRY PRIOR TO STARTING AN ENGINE FUEL L P or Natural Gas Make sure the gaseous fuel being supplied to the unit is in vapor form and that it is...

Page 11: ...Do not use sprayed water or compressed air to clean the generator set INSPECTING Inspect the external wires of the generator set for cuts fraying or loose connections Repair or replace any problems pr...

Page 12: ...any fuel oil and or air filters per the engine manufacturers guidelines 2 Check oil level regularly at least every 5 to 8 hours of operation Be sure the proper oil level is maintained 3 Change the oi...

Page 13: ...peres to start them than to run them Some motors particularly split phase motors are very difficult to start and requires 5 to 7 times as much current to start them as it does to run them Repulsion in...

Page 14: ...h a part number if known 4 Quantity of parts NOTE Engine parts can usually be obtained from a local representative of your engine manufacturer via the information in the engine manufacturer s owner s...

Page 15: ...add if necessary NEVER REFUEL THE GENERATOR SET WHEN IT IS HOT OR RUNNING 5 Open the fuel valve on the fuel tank 6 If the engine is equipped with a fuel valve open it at this time 7 Check the fuel sy...

Page 16: ...Either push the engine s start switch or turn the key switch fully clockwise to engage the electric start motor 3 Do not allow the starter motor to crank for more than 10 seconds at a time 4 Allow 20...

Page 17: ...tput voltage Make sure the generator is turning at the speed on the nameplate 2 Broken wires or loose connections Broken wires or loose connections can cause the generator set to have low or no output...

Page 18: ...tery across the capacitor longer than a fraction of a second may damage the windings of the generator Stop the unit after doing this and replace the end cover If you still have no output look for othe...

Page 19: ...circuit breaker plunger will extend out approximately 3 8 B STANDARD DUPLEX RECEPTACLE This is your standard household duplex receptacle it is rated for 120 VAC 15 amps This receptacle is not a ground...

Page 20: ...standard household duplex receptacle it is rated for 120 VAC 15 Amps When using this receptacle you are utilizing the ground fault protection provided by the GFCI receptacle C ELAPSED TIME METER This...

Page 21: ...must be tested on a regular basis monthly B NEMA L530R RECEPTACLE This is a 120VAC 30 Amp twist lock style Receptacle C CIRCUIT BREAKERS These circuit breakers provide overload protection for the gen...

Page 22: ...sted on a regular basis monthly B NEMA L530R RECEPTACLE This is a 120VAC 30 Amp twist lock style Receptacle C CIRCUIT BREAKERS These circuit breakers provide overload protection for the generator set...

Page 23: ...ed on a regular basis monthly B NEMA L530R RECEPTACLE This is a 120VAC 30 Amp twist lock style Receptacle C CIRCUIT BREAKERS These circuit breakers provide overload protection for the generator set Wh...

Page 24: ...Generator End Componentry For PC25B PC30H MAV30 and MAH30 Generator Sets 247...

Page 25: ...hown 230 26015 07XN2520Y36N End Cover Mounting Bolts Not Shown 360 05000 EH0315A00 Control Box for the MAV30 and the MAH30 empty Not Shown 370 03602 HB6153A00 End Cover blank Not Shown 370 11900 EH033...

Page 26: ...Generator End Componentry For PC40H PC40B PC50H and PC90VE Generator Sets 269...

Page 27: ...00090 HA3187A08SP Stator Bolt 13 1 4 long Not Shown 700 00512 RM1088A07SP Engine Vibration Isolator Not Shown 700 00511 RM1088A06SP Generator End Vibration Isolator Not Shown 713 50000 TA0000A03SP Fue...

Page 28: ...CONNECTION DIAGRAM PC30H...

Page 29: ...Connection Diagram MAH30 MAV30 22...

Page 30: ...Connection Diagram PC40H PC40B PC50H 23...

Page 31: ...Connection Diagram PC60H 24...

Page 32: ...Connection Diagram PC90VE 55...

Page 33: ...product to the service center or for the reinstallation of the Baldor product upon its return to the party requiring warranty service Customers who are unable to take or ship the Baldor product to a...

Page 34: ...tained in the Baldor Generators Warranty Policy Warranty registration within 30 days of purchase is required for portable and towable products to qualify for any warranty consideration Proof of purcha...

Page 35: ...is dependent on the care it receives and the conditions under which it has to operate Some applications are very often used in dusty or dirty conditions which can cause what appears to be excessive w...

Page 36: ...ia to cause cancer birth defects and other reproductive harm CALIFORNIA PROPOSITION 65 WARNING Diesel engine exhaust and some constituents are known to the state of California to cause cancer birth de...

Page 37: ...Service is just a phone call away 800 872 7697 www baldor com products generators asp 3815 Oregon Street Oshkosh WI 54902 Phone 920 236 4200 Fax 920 236 4219...

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