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Centurion 4986 Owner's Manual

12,500 watt/15,000 watt
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Part No. 0E8082 Rev. D
Printed in USA
11.03, 9.04, 10.04, 9.05
COMMERCIAL • INDUSTRIAL • RESIDENTIAL
Owner's
Manual
• Safety
• Assembly
• Operation
• Maintenance
• Troubleshooting
• Electrical Data
• Parts
• Warranty
FOR YOUR NEAREST
AUTHORIZED SERVICE
CENTER 1-800-333-1322
www.centuriongenerators.com
MODELS:
04986 (12,500 Watt)
04987 (15,000 Watt)

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Summary of Contents for Centurion 4986

  • Page 1 • Operation • Maintenance • Troubleshooting • Electrical Data • Parts • Warranty FOR YOUR NEAREST MODELS: AUTHORIZED SERVICE 04986 (12,500 Watt) CENTER 1-800-333-1322 04987 (15,000 Watt) www.centuriongenerators.com Part No. 0E8082 Rev. D Printed in USA 11.03, 9.04, 10.04, 9.05...

  • Page 2: Table Of Contents

    Table of Contents Commercial-Industrial-Residential Portable Generator System Safety Rules ..........1-3 Section 3 – Maintenance......14 Maintenance Schedule ..........14 Section 1 – General Information ....4 Product Specifications ..........14 Unpacking ..............4 3.2.1 Generator Specifications ........14 1.1.1 Accessory Box..........4 3.2.2 Engine Specifications ........14 Assembly ..............4 General Recommendations ........15 1.2.1 Assembling the Wheel Kit ........4...

  • Page 3: Safety Rules

    For a period of two years from the date of original sale, Generac Power Systems, Inc. (Generac) warrants its Centurion READ THIS MANUAL THOROUGHLY generator will be free from defects in materials and workmanship for the items and period set forth below. Generac will, at its option, repair or replace •...
  • Page 4 IMPORTANT SAFETY INSTRUCTIONS Section 8 – Warranty Commercial-Industrial-Residential Portable Generator System Commercial-Industrial-Residential Portable Generator System SAVE THESE INSTRUCTIONS – The manufacturer suggests that these rules for safe operation be copied and posted near EMISSION CONTROL SYSTEM WARRANTY the unit's installation site. Safety should be stressed to all operators and potential operators of this equipment. Emission Control System Warranty (ECS warranty) for 2001 and later model year LSI engines: •...

  • Page 5: California Emission Control Warranty Statement

    Section 8 – Warranty IMPORTANT SAFETY INSTRUCTIONS Commercial-Industrial-Residential Portable Generator System Commercial-Industrial-Residential Portable Generator System CALIFORNIA EMISSION CONTROL WARRANTY STATEMENT ELECTRICAL HAZARDS EXPLOSION HAZARDS • All generators covered by this manual produce dangerous • Do not smoke around the generator. Wipe up any fuel or oil YOUR WARRANTY RIGHTS AND OBLIGATIONS electrical voltages and can cause fatal electrical shock.

  • Page 6: Section 1 - General Information

    Section 1 – General Information Section 7 — Exploded Views and Parts Lists Commercial-Industrial-Residential Portable Generator System Commercial-Industrial-Residential Portable Generator System Frame, Handle & Wheel Kit – Drawing No. 0E0695A ITEM PART NO. QTY. DESCRIPTION ITEM PART NO. QTY. DESCRIPTION 1.2 ASSEMBLY 1.1 UNPACKING 057058...

  • Page 7: Battery Connection

    Section 7 — Exploded Views and Parts Lists Section 1 - General Information Commercial-Industrial-Residential Portable Generator System Commercial-Industrial-Residential Portable Generator System Frame, Handle & Wheel Kit – Drawing No. 0E0695A Figure 2 - Handle Assembly Figure 3 - Battery Connections 1.2.3 BATTERY CONNECTION •...

  • Page 8: Section 2 - Operation

    Section 2 – Operation Section 7 — Exploded Views and Parts Lists Commercial-Industrial-Residential Portable Generator System Commercial-Industrial-Residential Portable Generator System Control Panel – Drawing No. 0E0227-C Figure 6 - Engine Control Panel ITEM PART NO. QTY. DESCRIPTION ITEM PART NO. QTY. DESCRIPTION OPERATION 022158 NUT HEX #10-32...

  • Page 9: Cord Sets And Connector Plugs

    Section 7 — Exploded Views and Parts Lists Section 2 – Operation Commercial-Industrial-Residential Portable Generator System Commercial-Industrial-Residential Portable Generator System Control Panel – Drawing No. 0E0227-C 14) Start/Run/Stop Switch – Controls the operation of the A GFCI receptacle does NOT protect against circuit overloads, generator.

  • Page 10: 120/240V Ac, 30 A, Receptacle

    Section 2 – Operation Section 7 — Exploded Views and Parts Lists Commercial-Industrial-Residential Portable Generator System Commercial-Industrial-Residential Portable Generator System Generator – Drawing No. 0D4488-E Figure 9 - 120 VAC, 30 Amp Receptacle 2.2.5 12 VOLT DC, 10 AMP RECEPTACLE ITEM PART NO.

  • Page 11: How To Use The Generator

    Section 7 — Exploded Views and Parts Lists Section 2 – Operation Commercial-Industrial-Residential Portable Generator System Commercial-Industrial-Residential Portable Generator System Generator – Drawing No. 0D4488-E 2.3.2 CONNECTING ELECTRICAL LOADS 2.3 HOW TO USE THE GENERATOR DO NOT connect 240 Volt loads to 120 Volt receptacles. DO NOT connect 3-phase loads to the generator.

  • Page 12: Wattage Reference Chart

    Section 2 – Operation Section 7 — Exploded Views and Parts Lists Commercial-Industrial-Residential Portable Generator System Commercial-Industrial-Residential Portable Generator System GT-990 & GT-760 Engine (Page 2) – Drawing No. 0E8589-J ITEM PART # QTY. DESCRIPTION ITEM PART NO#.QTY. DESCRIPTION 2.5 WATTAGE REFERENCE GUIDE 0D6592 WINGNUT, AIRBOX 092079...

  • Page 13: Adding Gasoline

    Section 7 — Exploded Views and Parts Lists Section 2 — Operation Commercial-Industrial-Residential Portable Generator System Commercial-Industrial-Residential Portable Generator System GT-990 & GT-760 Engine (Page 2) – Drawing No. 0E8589-J Figure 15 - Fuel Shut-off Valve 2.6.2 ADDING GASOLINE ------------- ------------- WARNING WARNING:...

  • Page 14: Stopping The Engine

    Section 2 — Operation Section 7 — Exploded Views and Parts Lists Commercial-Industrial-Residential Portable Generator System Commercial-Industrial-Residential Portable Generator System GT-990 & GT-760 Engine (Page 1) – Drawing No. 0E8589-J • To start engine, press and hold the Start/Run/Stop switch in ITEM PART NO.
  • Page 15 Section 7 — Exploded Views and Parts Lists Section 2 — Operation Commercial-Industrial-Residential Portable Generator System Commercial-Industrial-Residential Portable Generator System GT-990 & GT-760 Engine (Page 1) – Drawing No. 0E8589-J To recharge 12 Volt batteries, proceed as follows: • Check fluid level in all battery cells. If necessary, add ONLY distilled water to cover separators in battery cells.

  • Page 16: Section 3 - Maintenance

    ** Clean more often under dirty or dusty operating conditions. Replace air cleaner parts if very dirty.. PRODUCT SPECIFICATIONS 3.2.1 GENERATOR SPECIFICATIONS MODEL C 12500 C 15000 Model # 04986 04987 Rated Max. Power 12.5 kW 15.0 kW Surge Power 18.75 kW 22.5 kW...

  • Page 17: General Recommendations

    Section 6 — Electrical Data Section 3 — Maintenance Commercial-Industrial-Residential Portable Generator System Commercial-Industrial-Residential Portable Generator System Wiring Diagram – Drawing No. 0E0228 3.3.3 ENGINE MAINTENANCE 3.3 GENERAL RECOMMENDATIONS DANGER! When working on the generator, always disconnect The warranty of the generator does not cover items that have negative cable from battery.

  • Page 18: Service Air Cleaner

    Section 3 — Maintenance Section 5 - Notes Commercial-Industrial-Residential Portable Generator System Commercial-Industrial-Residential Portable Generator System Use Champion RC14YC spark plug or equivalent. The correct air To clean or replace foam pre-cleaner: gap is 0.76 mm (0.030 in.). Replace the plug once each •...

  • Page 19: Adjusting Valve Clearance

    Section 5 — Notes Section 3 — Maintenance Commercial-Industrial-Residential Portable Generator System Commercial-Industrial-Residential Portable Generator System Figure 21 - Spark Arrestor Figure 22 - Valve Clearance Adjustment • Install new valve cover gasket. 3.6 ADJUSTING VALVE CLEARANCE • Re-attach the valve cover. After the first 50 hours of operation, you should adjust the valve clearance in the engine.

  • Page 20: General

    Section 3 — Maintenance Section 4 — Troubleshooting Commercial-Industrial-Residential Portable Generator System Commercial-Industrial-Residential Portable Generator System STORAGE 4.1 TROUBLESHOOTING SYMPTOM CAUSE SOLUTION 3.7 GENERAL 3.9 OTHER STORAGE TIPS: • Do not store gasoline from one season to another. The generator should be started at least once every seven days 1.

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