Generac Power Systems GN - 320 Owner's Manual
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Generac Power Systems GN - 320 Owner's Manual

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GENERAC
Overhead Valve
Industrial
Owner's Manual
Model No. GN - 320/360/410 (11/13/15 Horsepower)
T T H H I I S S S S Y Y M M B B O O L L P P O O I I N N T T S S O O U U T T I I M M P P O O R R T T A A N N T T S S A A F F E E T T Y Y I I N N S S T T R R U U C C T T I I O O N N S S , , W W H H I I C C H H , , I I F F N N O O T T F F O O L L L L O O W W E E D D , , C C O O U U L L D D E E N N D D A A N N G G E E R R
T T H H E E P P E E R R S S O O N N A A L L S S A A F F E E T T Y Y A A N N D D / / O O R R P P R R O O P P E E R R T T Y Y O O F F Y Y O O U U R R S S E E L L F F A A N N D D O O T T H H E E R R S S . . R R E E A A D D A A N N D D F F O O L L L L O O W W A A L L L L
I I N N S S T T R R U U C C T T I I O O N N S S I I N N T T H H E E M M A A N N U U A A L L B B E E F F O O R R E E A A T T T T E E M M P P T T I I N N G G T T O O O O P P E E R R A A T T E E T T H H I I S S U U N N I I T T . .
Revision 0 (11/16/98)
®
ENGINES
Manual No. A8927
Printed in U.S.A.

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Summary of Contents for Generac Power Systems GN - 320

  • Page 1 Owner’s Manual Model No. GN - 320/360/410 (11/13/15 Horsepower) T T H H I I S S S S Y Y M M B B O O L L P P O O I I N N T T S S O O U U T T I I M M P P O O R R T T A A N N T T S S A A F F E E T T Y Y I I N N S S T T R R U U C C T T I I O O N N S S , , W W H H I I C C H H , , I I F F N N O O T T F F O O L L L L O O W W E E D D , , C C O O U U L L D D E E N N D D A A N N G G E E R R T T H H E E P P E E R R S S O O N N A A L L S S A A F F E E T T Y Y A A N N D D / / O O R R P P R R O O P P E E R R T T Y Y O O F F Y Y O O U U R R S S E E L L F F A A N N D D O O T T H H E E R R S S .

  • Page 2: Rules For Safe Operation

    G G e e n n e e r r a a c c G G N N - - 3 3 2 2 0 0 / / 3 3 6 6 0 0 / / 4 4 1 1 0 0 E E n n g g i i n n e e If you don’t understand any portion of this manual, contact Generac for a demonstration of actual starting, operating and servicing procedures.
  • Page 3 G G e e n n e e r r a a c c G G N N - - 3 3 2 2 0 0 / / 3 3 6 6 0 0 / / 4 4 1 1 0 0 E E n n g g i i n n e e •...

  • Page 4: Table Of Contents

    Retorquing Head Bolts ...11-12 Maintenance Schedule ...12 Storage Instructions ...13 Specifications ...13 PARTS LISTS & EXPLODED VIEWS ...14-21 WARRANTIES ...22-24 California Emission Control Warranty Statement ...22 Emission Control System Warranty ...23 Generac Engine Warranty ...Back Cover Decal — 4 —...

  • Page 5: Oil And Fuel Information

    G G e e n n e e r r a a c c G G N N - - 3 3 2 2 0 0 / / 3 3 6 6 0 0 / / 4 4 1 1 0 0 E E n n g g i i n n e e OIL AND FUEL INFORMATION NOTE: BE SURE TO READ THESE INSTRUCTIONS CAREFULLY BEFORE ATTEMPTING TO START OR...

  • Page 6: Operation

    G G e e n n e e r r a a c c G G N N - - 3 3 2 2 0 0 / / 3 3 6 6 0 0 / / 4 4 1 1 0 0 E E n n g g i i n n e e OPERATION AND MAINTENANCE It is the owner’s/operator's responsibility to perform all safety checks;...

  • Page 7: Starting The Engine

    G G e e n n e e r r a a c c G G N N - - 1 1 9 9 0 0 / / 2 2 0 0 0 0 E E n n g g i i n n e e If the engine FAILS TO START, go to Step 3.

  • Page 8: Maintenance

    G G e e n n e e r r a a c c G G N N - - 3 3 2 2 0 0 / / 3 3 6 6 0 0 / / 4 4 1 1 0 0 E E n n g g i i n n e e GENERAL MAINTENANCE RECOMMENDATIONS The owner/operator is responsible for making sure that all periodic...

  • Page 9: Replacing The Spark Plug

    G G e e n n e e r r a a c c G G N N - - 3 3 2 2 0 0 / / 3 3 6 6 0 0 / / 4 4 1 1 0 0 E E n n g g i i n n e e CAUTION: Never run this equipment without the complete air cleaner system installed on the engine.

  • Page 10: Service And Adjustments

    Generac GN-320/360/410 Engine 3. Set the spark plug gap (Figure 8) to 0.76mm (0.030 in.). Install a correctly gapped spark plug into the cylinder head. Figure 8 — Setting Spark Plug Gap SET PLUG GAP AT 0.76 mm (0.030 inch)

  • Page 11: Carburetor Adjustments

    G G e e n n e e r r a a c c G G N N - - 3 3 2 2 0 0 / / 3 3 6 6 0 0 / / 4 4 1 1 0 0 E E n n g g i i n n e e CARBURETOR ADJUSTMENTS The carburetor of your engine is pre-set at the factory.

  • Page 12: Retorquing Head Bolts

    G G e e n n e e r r a a c c G G N N - - 3 3 2 2 0 0 / / 3 3 6 6 0 0 / / 4 4 1 1 0 0 E E n n g g i i n n e e RETORQUING THE HEAD BOLTS After the first 50 hours of operation, retorque the head bolts.

  • Page 13: Storage Instructions

    G G e e n n e e r r a a c c G G N N - - 3 3 2 2 0 0 / / 3 3 6 6 0 0 / / 4 4 1 1 0 0 E E n n g g i i n n e e STORAGE INSTRUCTIONS This engine should be started at least once a week and run for at least 30 minutes.
  • Page 15 G G e e n n e e r r a a c c G G N N - - 3 3 2 2 0 0 / / 3 3 6 6 0 0 / / 4 4 1 1 0 0 E E n n g g i i n n e e R R E E P P A A I I R R P P A A R R T T S S L L I I S S T T —...
  • Page 16 G G e e n n e e r r a a c c G G N N - - 3 3 2 2 0 0 / / 3 3 6 6 0 0 / / 4 4 1 1 0 0 E E n n g g i i n n e e E E X X P P L L O O D D E E D D V V I I E E W W —...
  • Page 17 G G e e n n e e r r a a c c G G N N - - 3 3 2 2 0 0 / / 3 3 6 6 0 0 / / 4 4 1 1 0 0 E E n n g g i i n n e e A A I I R R C C L L E E A A N N E E R R A A N N D D C C A A R R B B U U R R E E T T O O R R ITEM DESCRIPTION...
  • Page 18 G G e e n n e e r r a a c c G G N N - - 3 3 2 2 0 0 / / 3 3 6 6 0 0 / / 4 4 1 1 0 0 E E n n g g i i n n e e E E X X P P L L O O D D E E D D V V I I E E W W —...
  • Page 19 G G e e n n e e r r a a c c G G N N - - 3 3 2 2 0 0 / / 3 3 6 6 0 0 / / 4 4 1 1 0 0 E E n n g g i i n n e e E E X X P P L L O O D D E E D D V V I I E E W W —...
  • Page 20 G G e e n n e e r r a a c c G G N N - - 3 3 2 2 0 0 / / 3 3 6 6 0 0 / / 4 4 1 1 0 0 E E n n g g i i n n e e E E X X P P L L O O D D E E D D V V I I E E W W —...
  • Page 21 G G e e n n e e r r a a c c G G N N - - 3 3 2 2 0 0 / / 3 3 6 6 0 0 / / 4 4 1 1 0 0 E E n n g g i i n n e e E E X X P P L L O O D D E E D D V V I I E E W W —...

  • Page 22: Warranties

    Corporation Limited Warranties for Generac Corporation which is enclosed herewith on a separate sheet and also is provided to you by Generac Corporation. The ECS Warranty applies only to the emission control system of your new engine. To the extent that there is any conflict in terms between the ECS Warranty and the Generac Corporation Warranty, the ECS Warranty shall apply except in any circumstances in which the Generac Corporation Warranty may provide a longer warranty period.

  • Page 23: Emission Control System Warranty

    1. Any warranted, emissions-related parts which are not scheduled for replacement as required maintenance in the Owner's Manual shall be warranted for the ECS Warranty Period. If any such part fails during the ECS Warranty Period, it shall be repaired or replaced by Generac Corporation according to Subsection (4) below.

  • Page 24: Warranties

    TWO YEAR LIMITED WARRANTY FOR “GN” ENGINES Generac Power Systems, Inc. warrants to the original purchaser that the engine will be trouble free from defects in material or workmanship for the items and period set forth below from the date of original purchase. This warranty is not transferable.

This manual is also suitable for:

Gn - 360Gn - 410

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