Generac generator service manual pdf

Generac Power Systems 20kW on manualslib. Generac Power Systems 20kW Owner’s Manual Generac generac generator service manual pdf generator owner’s manual. ONLY QUALIFIED ELECTRICIANS OR CONTRACTORS SHOULD ATTEMPT INSTALLATION!

Not intended for use in critical life support applications. This manual should remain with the unit. The manufacturer suggests that these rules for safe operation be copied and posted in potential hazard areas. Safety should be stressed to all operators, potential operators, and service and repair technicians for this equipment. Before performing any maintenance on the gen- erator, disconnect its battery cables to prevent accidental start-up.

Never use the generator or any of its parts as a step. Page 5: Introduction, Read This Manual Thoroughly, Operation And Maintenance, How To Obtain Service DATA LABEL affixed to the unit. AUTHORIZED SERVICE DEALER LOCATION SERVICE DEALER, please call this number: To locate the nearest AUTHORIZED 1-800-333-1322 or locate us on the web at: www. Page 6: Identification Record, Data Label ENGINE RPM ALTERNATOR SUBTRANSIENT REACTANCE ALTERNATOR TRANSIENT REACTANCE CLASS ROTOR GENERAC POWER SYSTEMS, INC. Standby Generator Sets General Information For actual information related to this particular model, please refer to the Manual Drawing Listing located at the end of this manual, or to the data label affixed to the unit. Page 7: Equipment Description, Equipment Description, Engine Oil Recommendations, Coolant Recommendations, Specifications, Generator, Engine, Cooling System EQUIPMENT DESCRIPTION This equipment is a revolving field, alternating cur- rent generator set. Page 8: Engine Protective Devices, High Coolant Temperature Switch, Low Coolant Level Sensor, Low Oil Pressure Switch ENGINE PROTECTIVE DEVICES The standby generator may be required to operate for long periods of time without an operator on hand to monitor such engine conditions as coolant tempera- ture, oil pressure or rpm.

NOTE: Generator rating and perfomance in accordance with ISO8528-5, BS5514, SAE J1349, ISO3046 and DIN 6271 Standards. KW rating is based on LPG fuel and may derate with natural gas. This generator may be rated at any one of three voltages, either single-phase or three-phase. Page 14: Start-up Checklist, Preparation For Start-up, Start-up Inspection Authorized Service Dealer. White copy: Mail to Generac Warranty Department, P .

Pink Copy: For service file of installing dealer. Page 15: Maintenance, Operation, Generator Control And Operation, Operating Unit With Manual Transfer Switch GENERATOR CONTROL AND OPERATION Refer to the appropriate control panel operator’s manual for this unit. OPERATING UNIT WITH MANUAL TRANSFER SWITCH If the generator was installed in conjunction with a transfer switch capable of manual operation only, the following procedure applies. MANUAL switch is in the OFF position. The 15A fuse has been removed from the con- trol box. The 120VAC supply to the battery charger is switched OFF . Can Perform, Check Engine Oil Level, Check Battery Figure 10.

1 – Oil Dipstick and Oil Fill Cap OIL FILL CAP BATTERY FLUID Check battery electrolyte fluid based on the Maintenance Schedule. Fluid should cover separa- tors in all battery cells. If fluid level is low, add dis- tilled water to cover tops of separators. Page 18: Changing Engine Oil, Changing The Engine Air Cleaner, Spark Plugs, Coolant Change CHANGING ENGINE OIL Refer to maintenance performed by authorized service facilities for engine oil and filter change frequencies. Drain the oil while the engine is still warm from run- ning. This means warm up the engine, shut it down and drain immediately as follows: 1. Page 19: Miscellaneous Maintenance, Cleaning The Generator, Battery, Battery Maintenance, Battery Replacement MISCELLANEOUS MAINTENANCE CLEANING THE GENERATOR Keep the generator as clean and as dry as possible.

Dirt and moisture that accumulates on internal gen- erator windings have an adverse effect on insulation resistance. Page 20 SERVICE SCHEDULE The following is a recommended maintenance schedule for small standby and residential generator sets. The established intervals in the schedule are the maximum recommended when the unit is used in an average service application. Page 21 Maintenance Level 1 Tasks Recom- mended to be done monthly 1. Disable the unit from operating per the first page warning. Check the engine coolant thermal protection level.

Page 22 Maintenance Level 1 Tasks Recom- mended to be done monthly 13. Initiate an automatic start and transfer of the unit to site load and exercise it for at least 1 hour looking for leaks, loose connections or components, and abnormal operating conditions. Page 23: Troubleshooting, Troubleshooting Guide TROUBLESHOOTING GUIDE PROBLEM CAUSE Engine won’t crank. Engine cranks but won’t start Engine starts hard, runs rough. MANUAL Switch at OFF, engine continues to run No AC output from generator. Contact the nearest Authorized Dealer for assistance.

16 0F8218 ASSY STATOR 20KW 1PH A 0F8220 ASSY STATOR 20KW 3PH GJK 0A5382 BEARING CARRIER REAR 075591 ASSY HOLDER BRUSH 075476 SCREW PPHM M4-0. 16 STL 052647 SCREW SHC M10-1. Page 33 0F7155 MOUNTING BASE 1. 16 STL 070936 DAMPENER VIBRATION 070936C VIB. 70-75 DURO 039253 SCREW HHC M8-1. Page 35 0F7211 SUPPORT RADIATOR LH SIDE 0F7209 VENTURI 15″ DIA FAN 0F7210 SUPPORT RADIATOR RH SIDE 0E9837A RADIATOR 2.

Page 15: Maintenance, shut it down and drain immediately as follows: 1. Disconnect its battery cables to prevent accidental start — page 45 0F7366 MUFFLER C1 0F7647 MUFFLER SADDLE 0F8095 PIPE EXHAUST OUTLET 0F7538 PIPE EXH INLET MUFLR SIDE 1. White copy: Mail to Generac Warranty Department, mANUAL switch is in the OFF position. Every effort has been made to ensure that informationin this manual is accurate and current However, let engine run at no, oil Dipstick and Oil Fill Cap OIL FILL CAP BATTERY FLUID Check battery electrolyte fluid based on the Maintenance Schedule.