Generac Power Systems 1.6L 18 kW, Owner'S Manual

INSTALLATION

Refer to the separate “Installation Guide” supplied 
with the unit.

PREPARATION BEFORE START-UP

The instructions in this section assume that the 
standby generator has been properly installed, ser-
viced, tested, adjusted and otherwise prepared for 
use by a competent, qualified installation contractor. 
Be sure to read the “Safety Rules”, as well as all other 
safety information in this manual, before attempting 
to operate this (and related) equipment.

Before starting the generator for the first time, the 
installer must complete the following procedures. For 
follow-up maintenance information and/or service 
intervals, please refer to the “Maintenance” section 
and the “Service Schedule”.

TRANSFER SWITCH

If this generator is used to supply power to any elec-
trical system normally powered by an electric utility, 
the National Electrical Code requires that a transfer 
switch be installed. The transfer switch prevents elec-
trical backfeed between two different electrical sys-
tems. (For additional information, see the applicable 
transfer switch manual for this unit.) The transfer 
switch, as well as the generator and other standby 
components, must be properly located and mounted 
in strict compliance with applicable codes, standards 
and regulations.

FUEL SYSTEM

Make sure the fuel supply system to the generator (a) 
delivers the correct fuel at the correct pressure and (b) 
is properly purged and leak tested according to code. 
No fuel leakage is permitted. See “Specifications” for 
more information.

GENERATOR SET LUBRICATION

Check the engine crankcase oil level before operating 
and add oil to the proper level – the dipstick “FULL” 
mark. Never operate the engine with the oil level 
below the dipstick “ADD” mark. See “Specifications” 
and “Engine Oil Recommendations”.

NOTE:

This engine is shipped from the manufacturer 
with “break-in” oil. This oil should be changed 
after 30 hours of operation.

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PRIOR TO INITIAL START-UP



  Prior to initially starting the generator, it must 

be properly prepared for use. Any attempt to 
crank or start the engine before it has been 
properly serviced with the recommended types 
and quantities of engine fluids (oil, coolant, fuel, 
etc.) may result in an engine failure.

ENGINE COOLANT

Have the engine cooling system properly filled with 
the recommended coolant mixture. Check the system 
for leaks and other problems. See “Specifications” 
and “Coolant” sections.

BELT TENSION

Check-the engine-fan belt tension and condition prior 
to placing the unit into service and at recommended 
intervals. Belt tension is correct when a force of 
approximately 22 pounds (10 kg), applied midway 
between pulleys, deflects the belt about 3/8- to 5/8-
inch (10 to 16 mm).

ELECTRICAL SYSTEM

Make sure the generator is properly connected to an 
approved earth ground.

Make sure the generator battery is fully charged, 
properly installed and interconnected, and ready for 
use.

NOTE:

Battery charger must be connected to 120 VAC, 15 
amp circuit to operate.

Check to ensure that there are no loose electrical con-
nections. Restrain any loose wires to keep them clear 
of any moving generator set components.

INITIAL INSPECTION FOR GENSET 
STARTUP

Inspect for the following.

• Freight Damage.
• Manuals present.
•  Fluid Levels (Oil, coolant, battery, Gear Drive).
• Correct fuel piping.
• Adequate air flow, clearances and ventilation per 

installation drawings and applicable codes.

• Correct AC and DC wire size, connections and 

grounding. Control and communication wiring to/
from the transfer switch must be run in a separate 
conduit from the AC power leads.

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8-1

Standby Generator Sets

Installation

Install002  Rev.

 C  01/07