GT POWER GT2500i User manual

GT2500i
2400W

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WARNING!
READ AND UNDERSTAND ALL SAFETY PRECAUTIONS IN THIS
MANUAL BEFORE OPERATING. FAILURE TO COMPLY WITH
INSTRUCTIONS IN THIS MANUAL COULD RESULT IN PERSONAL
INJURY, PROPERTY DAMAGE, AND/ OR VOIDING OF YOUR
WARRANTY. GT POWER WILL NOT BE LIABLE FOR ANY DAMAGE
BECAUSE OF FAILURE TO FOLLOW THESE INSTRUCTIONS.
Congratulations on your new GT Power product!
The GT Power range from Euroquip uses latest technology design and
engineering to produce generator products that combine market leading value
and features with durability. Designed for discerning operators who seek
professional results and product quality. Design emphasis is placed on simple,
functional design and operation. GT Power products are subject to stringent
quality control and designed and manufactured to NZ & Australian standards.
Euroquip is a market leading provider of innovative power equipment solutions
to a wide range of industries across New Zealand and Australia. Key product
categories are; welding equipment, air compressors, power generators and
cleaning equipment.
Euroquip’s slogan is ‘empowering industries’, nd out more about the advantage
Euroquip brings at www.euroquip.co.nz.
Providing exceptional product support is a key component of Euroquip’s market
leading customer advantage focus. As part of this program, it is required for
all products to be registered with Euroquip to qualify for product support and
the extended 24 month warranty. Products not registered with Euroquip are
supported by a base 12 month warranty only. Spare parts and technical support
will not be available for an unregistered product outside of this base warranty
period. If a Euroquip dealer has not already registered your
product, please register it online at www.euroquip.co.nz.
To request a physical registration form, please download
one at www.euroquip.co.nz under the ‘Contact Us’ tab.

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Table Of Contents
Safety Denitions .....................................................................4
General Safety Precautions .....................................................4
Safety Labels............................................................................6
Unpacking the Generator..........................................................7
Accessories...........................................................................7
Generator Controls & Features ................................................8
Before Starting the Generator.................................................10
Checking and Adding Engine Oil and Fuel..............................11
Starting the Generator............................................................12
Stopping the Generator..........................................................14
Application and Duty Cycle......................................................15
Ambient Conditions................................................................15
Connecting Electrical Loads..................................................15
240V AC Extension Cords.......................................................17
12V Battery Charging............................................................18
Transporting the Generator.....................................................20
Maintenance Precautions.......................................................20
Engine Oil Maintenance..........................................................22
Air Filter Maintenance.............................................................24
Fuel Strainer Maintenance.....................................................26
Spark Plug Maintenance........................................................27
Spark Arrester Maintenance...................................................28
Cleaning the Generator...........................................................29
Draining the Fuel.....................................................................30
Long Term Storage..................................................................31
Dismantling and Disposal.......................................................32
Troubleshooting ....................................................................33
Calculating Your Power Needs...............................................36
Wattage Reference Guide......................................................37
Specications.........................................................................38
Wiring Diagram.......................................................................39
Warranty................................................................................ 40

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Safety Definitions
The words DANGER, WARNING, CAUTION
and NOTICE are used throughout this manual
to highlight important information. Be certain
that the meanings of these alerts are known
to all who work on or near the equipment.
The above safety alert symbol appears with
most safety statements. It means attention,
become alert, your safety is involved! Please
read and abide by the message that follows
the safety alert symbol.
DANGER!
Indicates a hazardous situation which,
if not avoided, will result in death or
serious injury.
WARNING!
Indicates a hazardous situation which,
if not avoided, could result in death or
serious injury.
CAUTION!
Indicates a hazardous situation which,
if not avoided, could result in minor or
moderate injury.
NOTICE: Indicates a situation which can
cause damage to the generator, personal
property and/or the environment, or cause
the equipment to operate improperly.
NOTE: Indicates a procedure, practice or
condition that should be followed in order
for the generator to function in the manner
intended.
DANGER!
Never use the generator in a location
that is wet or damp. Never expose the
generator to rain, snow, water spray
or standing water while in use. Protect
the generator from all hazardous
weather conditions. Moisture or ice
can cause a short circuit or other mal-
function in the electrical system.
Never operate the generator in an en-
closed area. Engine exhaust contains
carbon monoxide. Only operate the
generator outside and away from win-
dows, doors and vents.
WARNING!
Voltage produced by the generator
could result in death or serious injury.
• Never operate the generator in rain or a
oodplain unless proper precautions are
taken to avoid being subject to rain or ood.
• Never use worn or damaged extension
cords.
• Always have a licensed electrician connect
the generator to any xed electrical instal-
lation.
• Never touch an operating generator if the
generator is wet or if you have wet hands.
• Never operate the generator in highly con-
ductive areas such as around metal deck-
ing or steel works.
• Always use earthed extension cords.
• Always use three-wire or double insulated
power tools.
General Safety
Precautions

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• Never touch live terminals or bare wires
while the generator is operating.
• Keep animals and children away from the
generator at all times.
WARNING!
Petrol fuel liquid and vapours are
extremely ammable and explosive
under certain conditions.
• Always refuel the generator outdoors, in a
well-ventilated area.
• Never remove the fuel cap while th engine
is running.
• Never refuel the generator while the engine
is running. Always turn engine off and allow
the generator to cool before refuelling.
• Only ll fuel tank with unleaded petrol.
• Keep away from sparks, open ames or
other forms of ignition such as matches,
cigarettes, CB radios and mobile phones
when refuelling.
• Never overll the fuel tank. Leave room for
fuel to expand. Overlling the fuel tank can
result in a sudden overow of fuel and re-
sult in spilled fuel coming in contact with
hot surfaces. Spilled fuel can ignite. If fuel
is spilled on the generator, wipe it up imme-
diately and dispose of rags properly. Allow
area of spilled fuel to dry before operating
the generator.
• Wear eye protection while refuelling.
• Never use fuel as a cleaning agent.
• Store any fuel containers in a well venti-
lated area, away from any combustibles or
source of ignition.
• Check for fuel leaks after refuelling.
• Never operate the engine if a fuel leak is
discovered.
• Equip the operating area with a Class ABE
or BE portable re extinguisher.
WARNING!
Never operate the generator if pow-
ered items overheat; electrical output
drops; there are sparks, ames or
smoke coming from the generator; or
if the receptacles are damaged.
• Never attempt to connect more than one
generator to the same electrical device, ex-
tension cord or xed electrical installation.
• Never use the generator to power medical
support equipment.
• Always remove any tools or other service
equipment used during maintenance be-
fore operating the generator.
WARNING!
You must take reasonable care for
the health and safety both of yourself
and any others who may be affected
by your actions. You must understand
and follow all of the safety rules and
working instructions described herein.
You must also use your own good
judgement and common sense.
NOTE: Never modify the generator.
• Never operate the generator if it vibrates
at high levels, if the engine speed changes
greatly or if the engine misres often.
• Always disconnect electric tools or appli-
ances from the generator before starting.

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Safety Labels
The safety labels have specic positions and
must be replaced if they are unreadable,
damaged or missing.
1
2
2
Read the
Operator
Instruction
Manual
before
operating
Use
Unleaded
Petrol
Only
1
DO NOT TOUCH HOT SURFACES
This generator produces extreme heat.
The muffler and surrounding areas get
very hot and severe burning will
occur if in contact with skin.
3
3
4
4
5
5Model Number: GT2500i
Rated Power: 2100W
Starting Power: 2400W
AC Voltage: 230V
AC Frequency: 50Hz
Power Factor: 1.0
AC Outlet: 15A
IP Rating: 23
Fuel: Unleaded Petrol
(Fig. 1) Safety Labels

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Unpacking
the Generator
WARNING!
Always have assistance when lifting
the generator. The generator is heavy;
lifting it could cause bodily harm. Avoid
cutting on or near staples to prevent
personal injury.
Accessories
Check the accessories against those listed
below. If any parts are missing, please con-
tact your local GT Power dealer.
• 400 ml Bottle of SAE 15W-40 Engine Oil
• Oil Fill Bottle
• Screwdriver
• Spark Plug Socket Wrench
• Generator Cover
• Instruction Manual
1. Carefully cut packing tape on top of carton.
2. Fold back top aps to reveal instruction
manual on top of the upper packing tray.
Remove manual and save it for reference.
3. Remove and save oil bottle, oil ll bottle,
screwdriver, spark plug socket wrench and
generator cover from upper packing tray.
4. Remove and discard upper packing tray.
5. Unfold top of the plastic bag enclosing the
generator.
6. Lift generator out of plastic bag and carton.
7. Recycle or dispose of packaging materials
properly.

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1 - Carry Handle
2 - Fuel Gauge
3 - Fuel Cap and Vent
4 - Air Filter Access Cover
5 - Recoil Starter Handle
6 - Control Panel
Generator Controls and Features
13
2
4
5
6
1 - Spark Plug Access Cover
2 - Mufer Access Cover
3 - Spark Arrester
4 - Oil Access Cover
5 - Fuel Drain Hose
6 - Fuel Drain Access Cover
1
4
5
3
2
6
(Fig. 2) Generator
Controls and Features

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1. 230-Volt AC, 15-Amp Outlets
Each outlet is capable of delivering generator
peak output of 2400W (i.e. 10A @ 230V).
2. Engine Stop Button
Press and hold down to stop the engine.
3. Generator Reset Button
Press and hold down to reset generator’s
electrical output when safe to do so, after
reducing the applied load or rectifying the
electrical fault that has caused an overload trip.
4. ECO Throttle Switch
Move switch to ON position when powering
small resistive loads such as a computer
or electric light; the engine speed will
automatically be kept to a minimum, thereby
reducing fuel consumption. Select the OFF
position when powering large inductive loads
such as an air conditioner or electric pump; the
engine speed will be kept higher for maximum
electrical starting power.
5. Choke
Pull choke knob out to START position if start-
ing a cold engine. To re-start a warm engine,
leave choke knob pushed in to RUN position.
6. Hour Meter
(Voltage, Engine Speed and Run Time)
Continuously displays generator’s AC output
voltage when generator is running. Press the
switch on its fascia to illuminate the meter and
then cycle through the engine speed and cu-
mulative running hour values.
7. Fuel Control Switch
Turn knob to ON position before starting the
generator. Select OFF position after stopping
engine with engine stop button for routine shut
down. Or select OFF position and allow engine
to run out of fuel prior to long-term shut down.
8. Low Oil Alarm
The red warning light will illuminate and en-
gine will automatically shut down if oil level
becomes too low. Add oil to the correct level
before re-starting the engine.
9. Overload Alarm
The red warning light will illuminate if genera-
tor’s AC output is overloaded or short-circuited.
A brief small overload may be tolerated, but
connected load should be reduced. An ex-
tended large overload or short circuit will trip
overload protection feature and disconnect
generator’s AC output even though engine is
still running; reduce connected load or rectify
electrical fault before pressing generator reset
button to restore AC output.
10. Output Indicator
The green status light will illuminate whenever
1 2 3 4 5
6
7
8
9
101112
(Fig. 3) Front Panel
Controls & Features

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the engine is running and there’s AC output
available from the generator.
11. Frame Terminal
The frame terminal can be used by a licensed
electrician to earth the generator if necessary.
12. 12-Volt DC Accessory Socket
Can be used for 12V DC powered devices up
to a maximum demand of 100W (i.e. 8A).
Before Starting the
Generator
Location Selection
Before starting the generator, avoid exhaust
and location hazards by verifying:
• You have selected a location to operate
the generator that is outdoors and well
ventilated.
• You have selected a location with a level
and solid surface on which to place the
generator.
• You have selected a location that is at least
1.8 m away from any building, other equip-
ment or combustible material.
• If the generator is located close to a build-
ing, it is not located near any windows,
doors or vents.
NOTE: Before starting the generator,
review Safety on page 4.
WARNING!
Always operate generator on a level sur-
face. Placing generator on a non-level
surface can cause it to tip over, causing
fuel and oil to spill. Spilt fuel can ignite if it
comes into contact with an ignition source
such as a very hot surface.
NOTICE: Only operate the generator on a
solid, level surface.
Operating the generator on a surface with
loose material such as sand or grass clip-
pings can cause debris to be ingested by the
generator that could:
• Block cooling vents
• Block air intake system
Weather
Never operate your generator outdoors dur-
ing rain, snow or any combination of weather
conditions that could lead to moisture collect-
ing on, in or around the generator.
Dry Surface
Always operate the generator on a dry sur-
face free of any moisture.
No Connected Loads
Make sure the generator has no connected
loads before starting it. To ensure there are
no connected loads, unplug any electrical
cords or devices from the 230VAC and 12V
DC receptacles on the control panel.
NOTICE: Starting the generator with loads al-
ready connected to it could result in damage
to any device being powered by the genera-
tor during the brief start-up period.
Earthing the Generator
The generator’s equipotential bonding sys-
tem including the frame terminal on the con-
trol panel should not be connected to the
general mass of earth through a separate
earth electrode. For more information, refer
to: AS/NZS 3010:2005 Electrical Installations
- Generating Sets or consult a licensed elec-
trician.

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WARNING!
Be sure the generator is properly in-
stalled to reduce the possibility of elec-
tric shock. Any connection to an elec-
trical installation such as in a building,
for example, must be carried out by a
licensed electrician.
Checking & Adding
Engine Oil and Fuel
NOTE: Before adding fuel or oil to the
generator, review Safety on page 4.
DANGER!
Filling the fuel tank with fuel while the
generator is running can cause fuel to
spill and come in contact with hot sur-
faces that can ignite the fuel.
Before starting the generator, always check
the engine oil and fuel levels. After starting
the generator, it is not safe to add fuel to the
fuel tank or engine oil to the engine while the
engine is running or immediately after stop-
ping while the engine and mufer are still hot.
Checking and Adding Engine Oil
Internal pressure can build up in the engine
crankcase while the engine is running. Re-
moving the oil ll plug while the engine is hot
can cause hot oil to spray out of the crank-
case and cause severe skin burns. Allow
engine oil to cool for several minutes before
removing the oil ll plug.
The generator as shipped does not contain
oil in the engine. You must add engine oil be-
fore starting the generator for the rst time.
See Engine Oil Maintenance on pages 22 -
24 for more information
NOTICE: The generator does not contain
engine oil as shipped. Attempting to start the
engine before adding engine oil can perma-
nently damage internal engine components.
Checking and Adding Fuel
WARNING!
Never refuel the generator while the
engine is running. Always turn the en-
gine off and allow
the generator to cool before refuelling.
With the generator switched off and station-
ary on a horizontal surface, check the fuel
level as indicated on the fuel gauge. It is good
practice to always ll the fuel tank before op-
erating the generator.
Required Fuel
Use only unleaded petrol with an octane rat-
ing not less than 91 and ethanol content not
greater than 10%. Where possible it is prefer-
able to use regular unleaded petrol without
ethanol.
Filling the Fuel Tank
Follow the steps below to ll the fuel tank:
1. Stop the generator, if running.
2. Allow the generator to cool down until the
mufer access cover is cool to the touch.
3. Move the generator to a at surface.
4. Clean area around the fuel cap.
5. Turn the fuel cap vent clockwise to the
ON position.

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6. Remove the fuel cap by unscrewing it
anticlockwise.
7. Slowly add fuel into the fuel tank. Be
careful not to overll the tank. The fuel
level should NOT be higher than the red
ring inside the fuel strainer (see Figure 6).
8. Replace the fuel cap by screwing it on
clockwise and turn the fuel cap vent anti-
clockwise to the OFF position.
CAUTION!
Avoid prolonged skin contact with fuel.
Avoid prolonged inhalation of fuel va-
pours.
NOTICE: Do not overll the fuel tank. Spilt fuel
may damage some plastic parts.
Before attempting to start the generator, ver-
ify the following:
• The engine is lled with engine oil (see
pages 22- 24).
• The generator is situated in a proper loca-
tion (see Location Selection on page 10).
• The generator is on a dry surface (see
Weather and Dry Surface on page 10).
• All loads are disconnected from the gen-
erator (see No Connected Loads on page
10).
Never use the generator in a location that is
wet or damp. Never expose the generator
to rain, snow, water spray or standing water
while in use. Protect the generator from all
hazardous weather conditions. Moisture or
ice can cause a short circuit or other malfunc-
tion in the electrical system.
Never operate the generator in an enclosed
area. Engine exhaust contains carbon mon-
oxide. Only operate the generator outside
and away from windows, doors and vents.
NOTICE: The generator is equipped with a
low oil shutdown switch. If the oil level be-
comes too low, the engine will shut down au-
tomatically and cannot be restarted until the
oil is lled to the proper level.
Be sure the engine has the proper oil level
before using. Failure to verify that the engine
has the proper oil level could result in severe
engine damage or shorten the engine life.
Disconnect all loads from generator before
starting. Failure to verify all loads are discon-
nected prior to starting generator could result
in damage to connected electrical devices.
Starting the
Generator
(Fig. 4) Maximum Fuel Fill Level

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1. Turn the fuel cap vent clockwise to the
ON position. (See Fig 5.)
2. Turn the fuel control switch clockwise to
the ON position. (See Fig 6.)
3. Pull choke knob out to START position if
starting a cold engine. To re-start a warm
engine, leave choke knob pushed in to
RUN position. (See Fig 7.)
4. Whilst holding the generator down with
one hand, rmly grasp the recoil starter
handle with your other hand and pull it
slowly until you feel increased resistance.
At this point, pull it briskly up and away
from the generator (see Fig.8).
(Fig. 5) Fuel Cap Vent in ON Position
(Fig. 6) Fuel Control Switch in ON Position
(Fig. 7) Choke Knob in START Position
(Fig. 8) Recoil Starter Handle Operation
Do not allow the starter handle to snap
back against the engine, but instead
return it gently to prevent starter dam-
age. Do not allow the starter cord to rub
against other parts of the generator.
5. As the engine starts running and warms
up, gradually push the choke back into
the RUN position.
6. Connect electrical cords or devices into
the 240V AC and/or 12V DC outlets, as
required.

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Eco Throttle Control
The generator is equipped with ECO Throt-
tle Control to minimise fuel consumption. In
ECO mode, the generator senses the elec-
trical load demand and adjusts the engine
speed and power output to match it; if there
is no electrical load connected, the engine
speed drops down to idle. ECO mode should
only be used once the generator has reached
normal operating temperature after running
for at least ve minutes. When starting large
inductive loads such as an air conditioner,
compressor or pump, ECO mode should be
switched off so that the engine speed will be
kept higher for maximum electrical starting
power availability.
To activate ECO mode, move the ECO throt-
tle switch to the ON position (see Fig. 9). To
deactivate ECO mode, move the ECO throt-
tle switch to the OFF position.
Overload Reset
An electrical overload or short circuit will
trip the overload protection system by dis-
connecting the generator’s AC output even
though the engine is still running. If this oc-
curs, the overload alarm light will be illumi-
nated red and the output indicator light will be
off. The AC output can be restored as follows:
(Fig. 9) ECO Throttle Switch in ON Position
1. Turn off and unplug any electrical devices
or cords from the 230V AC and 12V DC
receptacles on the control panel.
2. Press the generator reset button on the
control panel until the overload alarm light
goes off and the output indicator light is
illuminated green.
3. Check that the intended electrical run-
ning and starting loads do not exceed the
generator’s capacity or have a licensed
electrician rectify any fault causing a short
circuit in the load.
4. Reconnect any electrical devices or cords
to the 230V AC and 12V DC receptacles
on the control panel and then turn on the
electrical loads as required.
Stopping the
Generator
Normal Operation
During normal operation, use the following
steps to stop the generator:
1. Unplug any electrical cords or devices
from the 230V AC and 12V DC recepta-
cles on the control panel.
2. Allow the generator to run unloaded for at
least one minute to cool and stabilise the
engine and alternator temperatures.
3. Press and hold down the engine stop but-
ton until the generator has ceased operat-
ing.
4. Turn the fuel control switch to the OFF po-
sition.
11

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5. Turn the fuel cap vent anti-clockwise to
the OFF position.
During an Emergency
If there is an emergency and the genera-
tormust be stopped quickly, press and hold
down the engine stop button immediately.
Application
& Duty Cycle
All models within this range of GT Power gen-
erators are portable, air-cooled, petrolengine
driven, self-contained units designed for in-
dependent supply of electrical power. They
are ideal as a back-up power supply in the
event of mains power failure or as a remote
area power supply for use when camping,
caravanning or working out in the eld.
For most common applications, connect as
described in this manual.
The generator is designed to operate within
the following range of ambient conditions:
• Temperature: -5 to +40°C
• Altitude: Up to 1,000 m
Where possible, the generator should be op-
erated in the shade to prevent additional heat
load due to solar radiation.
The engine’s power output will decrease by
approximately 3.5% for each 300 m increase
in altitude above sea level. This is normal for
spark ignition engines and is attributable to
the decrease in atmospheric pressure (and
thus the available air for combustion) as alti-
tude increases.
Ambient Conditions
Connecting
Electrical Loads
The generator can only be used to power
230V AC, 50 Hz, single phase or 12V DC
electrical devices.
230 Volt AC Loads
230V AC devices can be connected either di-
rectly or via electrical extension cords into the
230V AC outlet(s) on the generator’s control
panel. Lift up the spring-loaded weather re-
sistant cover on each outlet for access to
connect the electrical device or cord.
230V AC devices may be tted with either a
three-pin 15A plug or a three-pin 10A plug.
Certain double-insulated devices may be t-
ted with a two pin 10A plug that doesn’t have
an earth pin (which is the longer, vertical pin).

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NOTICE: DO NOT connect any 230V AC de-
vice that is tted with a three-pin 20A plug.
This can overload the generator.
See 230V AC Extension Cords on page 17
for detailed instructions concerning their se-
lection and use.
12-Volt DC Loads
12V DC devices can be connected either di-
rectly or via an electrical extension cord not
exceeding 3.5 m in length into the 12V DC
outlet on the generator’s control panel. Pull
out the weather resistant stopper on the out-
let for access to connect the electrical device
or cord, and re-insert it after use.
NOTICE: The generator’s 12V DC electrical
output is unregulated. DO NOT connect any
12V DC device that may be damaged by volt-
age uctuations.
12V DC devices or extension cords must be
tted with a cigarette lighter plug for connec-
tion to the generator.
WARNING!
Never insert an automotive cigarette
lighter into the 12V DC outlet. The heat-
ed lighter may ignite the fuel causing an
explosion or re.
Power Output and Demand
There are two limits to the amount of electric
power that the generator can usefully pro-
vide: (a) its total 230V AC or 12V DC electric
power generating capacity or power output
and (b) the electric current or power output
capacity of each individual 230V AC or 12V
DC outlet.
The generator’s total power output measured
in Watts is listed in the Specications (see
page 37).
Two 230V AC power outputs are specied for
the generator, namely the running power and
the starting power. A single 12V DC power
output is also specied.
NOTICE: DO NOT overload the generator’s
230V AC or 12V DC circuits beyond their
rated capacities. This can result in damage
to the generator or to the connected devices.
The generator should not be run completely
unloaded for extended periods otherwise the
engine may be damaged. It is recommended
that the generator should always be operated
with at least one-third of its rated 230V AC
power output.
230V AC devices have two different electric
power demands that must be taken into con-
sideration, namely the running power and the
starting power. Both are measured in Watts
(typically abbreviated as “W”).
The steady state continuous load is the run-
ning power demand and this is often marked
on the device near its model number or serial
number. Sometimes the device might only be
marked with its voltage (i.e. 230 Volt or 230
V) and current draw (e.g. 6 Ampere or 6 Amp
or 6 A), in which case the running power de-
mand in Watts can be obtained by multiplying
the voltage times the current, e.g. 230V × 6
A = 1380W.
Simple resistive 230V AC devices such as
incandescent bulbs, toasters, heaters, etc.
have no extra power demand when starting,
and so their starting power demands are the
same as their running power demands. More
complex 230V AC devices containing induc-

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tive or capacitive elements such as electric
motors have a momentary extra power de-
mand when starting, which can be up to sev-
en times the running power demand or more.
Manufacturers of such devices rarely publish
this starting power demand and so it’s often
necessary to estimate it.
A rule of thumb for devices tted with an elec-
tric motor is to apply a starting power multi-
plier of 1.2 for small hand-held or portable de-
vices and a value of 3.5 for larger stationary
devices. For example, a 900W angle grinder
can be assumed to have a starting power de-
mand of at least 1.2 × 900W, which equals
1080W. Similarly, a 1650W air compressor
can be assumed to have a starting power de-
mand of at least 3.5 × 1650W, which equals
5775W.
To prevent overloading of the generator’s
230V AC system:
1. Add up the running power demand of all
the 230V AC devices that will be connect-
ed to the generator at one time. This total
must not be greater than the generator’s
specied running power output.
2. Add up the running power demand again,
but for the largest motor-driven device
use the value of its starting power de-
mand instead of its running power de-
mand. This total must not be greater than
the generator’s specied starting power
output.
3. The total running power demand of all the
devices that will be connected to any one
of the generator’s outlets must not ex-
ceed 2100W for the GT2500i.
The above guidelines serve as approxima-
tions only of determining the running and
starting power demands of 230V AC devices.
If in doubt, always err on the conservative
side to avoid overloading the generator. In
the absence of any power demand informa-
tion whatsoever, one can assume that any
device tted with a standard domestic 10A
plug has a maximum running power demand
of 2300W (i.e. 230V x 10 A = 2300W). Simi-
larly a device tted with a heavy duty 15A
plug can be assumed to have a maximum
running power demand of 3450W
(i.e. 230V x 15A = 3450W). And then apply
the appropriate multiplying factor for starting
power demand if the device has an electric
motor.
NOTICE: To prevent overloading of the gen-
erator’s 12V DC system, do not connect any
12V DC device(s) with a total running power
demand greater than 100W or a total current
draw of more than 8A.
230V AC
Extension Cords
Wherever possible, it is recommended to
connect 230V AC devices directly to the gen-
erator’s 230 V AC outlet(s). This ensures that
the device is supplied with the best quality
electricity.
In those instances where it’s not practicable
or safe to directly plug an electrical device
into the generator, the use of an electrical ex-
tension cord is necessary.
1. Use only the shortest possible extension
cord for the task. Voltage drop increases
proportionately with the length of an ex-

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tension cord and may result in damage to
the powered device.
2. Use only a single extension cord and not
multiple cords joined together. This will
minimize voltage drop and prevent any
hazard or inconvenience arising from the
joint(s) becoming disconnected.
3. Use only extra heavy duty 15A extension
cords made from 3-core cable of at least
1.5 mm2 conductor size and tted with 15
A plugs and sockets.
A 15A plug cannot be inserted into a
standard domestic 10A socket.
4. Extension cords with conductor size of
1.5 mm2 or 2.5 mm2 should not exceed
25m or 40m in length, respectively, for
general use in accordance with AS/NZS
3199:2007.
NOTICE: DO NOT use extension cords with
only 2-pin (active and neutral) plugs and
sockets. These extension cords lack the
earth connection that is provided by a 3-pin
plug and socket joined with a 3-core cable;
the vertical pin is the earth connection.
5. DO NOT use extension cords with any
visible signs of damage to the plug, sock-
et or cable.
6. DO NOT use extension cords that are
rolled up or knotted as they may overheat.
12V Battery
Charging
There are two methods by which the genera-
tor can be used to charge an external 12V
battery:
A. By direct connection to the generator’s
12V DC electrical outlet; or
B. By using a mains-powered 12 Volt battery
charger connected to one of the genera-
tor’s 230V AC outlets.
Wet cell batteries produce explosive hydro-
gen gas while charging. If ignited, the hy-
drogen gas mixture can explode the battery
and cause serious injury or blindness. Only
charge a battery in a well-ventilated area
away from any sources of ignition such as
sparks, open ames, matches, cigarettes, CB
radios and mobile phones.
The electrolyte uid inside a battery contains
highly corrosive sulphuric acid, which upon
contact with the skin or eyes can cause se-
vere burns or blindness. Always wear protec-
tive glasses and clothing - including gloves
- when working on a battery.
Any electrolyte spill should be thoroughly
ushed clean with water.
Charging by Direct Connection
This method is NOT RECOMMENDED and
should only be used in an emergency. The
generator’s 12V DC electrical output is un-
regulated and may damage the battery due
to overcharging.
Tools required (not incl.) - 12V DC, 10A
minimum battery charging cable with ciga-
rette lighter plug for connection to the gen-
erator and alligator clips (both positive and
negative) for connection to the battery.
1. Prepare the battery for charging if it is a
user maintainable type by removing the
vent caps and adding demineralized or
distilled water until the electrolyte level is

18. 19.
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just above the internal battery plates. This
may not be possible with a maintenance-
free battery.
2. Connect the positive (+) alligator clip (red)
to the positive (+) terminal on the battery.
3. Connect the negative (-) alligator clip
(black) to the negative (-) terminal on the
battery.
4. Start the generator.
5. Insert the cigarette lighter plug into the
generator’s 12V DC accessory socket.
The battery is now charging. Keep battery
as far away as possible from the genera-
tor due to the explosive gas hazard.
6. Monitor battery; stop charging if battery
gets hot to touch and electrolyte boils vio-
lently.
7. Variables such as battery size and initial
state of charge make it impossible to de-
nitively recommend the charging period.
Some batteries have a state of charge
indicator that can be visually checked.
Otherwise a voltmeter or hydrometer is
necessary to accurately determine the
battery’s condition. A fully charged battery
will have an open circuit voltage of at least
12.6V and an electrolyte specic gravity
of at least 1.265. In the absence of any
state of charge tools, stop the charging
after 3 hours and check whether the bat-
tery is capable of powering the required
application, e.g. to start a car’s engine.
8. Remove the cigarette lighter plug from the
generator’s 12V DC accessory socket.
9. Stop the generator unless it’s being used
to power some other 230V AC device(s).
10. Disconnect the negative (-) alligator clip
(black) from the negative (-) terminal on
the battery.
11. Disconnect the positive (+) alligator clip
(red) from the positive (+) terminal on the
battery.
12. Re-t the battery’s vent caps, if applica-
ble. The battery can now be used.
Battery Charging by a Mains
Powered Charger
This method is RECOMMENDED. Using a
proper mains-powered 12 Volt battery charg-
er will ensure that the battery is optimally
charged and without risk of damage due to
overcharging.
Tools required (not incl.) - 230V AC pow-
ered 12 V DC battery charger.
1. Prepare the battery for charging if it is a
user maintainable type by removing the
vent caps and adding demineralized or
distilled water until the electrolyte level is
just above the internal battery plates. This
may not be possible with a maintenance-
free battery.
2. Connect the battery charger’s positive (+)
alligator clip or terminal clamp (red) to the
positive (+) terminal on the battery.
3. Connect the battery charger’s negative (-)
alligator clip or terminal clamp (black) to
the negative (-) terminal on the battery.
4. Start the generator.
5. Make any necessary pre-charging adjust-
ments or settings on the battery charger

20. 21.
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in accordance with its operating instruc-
tions.
6. Insert the battery charger’s power supply
plug into one of the generator’s 240-Volt
AC outlet sockets and then switch the
battery charger ON.
The battery is now charging. Keep the
battery as far away as possible from the
generator due to the explosive gas haz-
ard.
7. Monitor the battery; stop charging if the
battery gets hot to the touch and the elec-
trolyte boils violently.
8. Monitor the battery charger in accordance
with its operating instructions and switch
it off when indicated to do so.
9. Switch the battery charger OFF and un-
plug its power supply cord from the gen-
erator.
10. Stop the generator unless it’s being used
to power some other 230V AC device(s).
11. Disconnect the battery charger’s negative
(-) alligator clip or terminal clamp (black)
from the negative (-) terminal on the bat-
tery.
12. Disconnect the battery charger’s positive
(+) alligator clip or terminal clamp (red)
from the positive (+) terminal on the bat-
tery.
13. Re-t the battery’s vent caps, if appli-
cable. The battery is now charged and
ready for use.
Transporting the
Generator
The generator should be stopped and both
the fuel control switch and fuel cap vent
should be turned to the OFF position before
transporting the generator.
Keep the unit level during transport to mini-
mise the possibility of fuel leakage or, if prac-
ticable, drain out the fuel prior to transport as
described in Draining the Fuel on page 30.
If the generator has been operating, allow the
unit to cool down before loading it onto the
transport vehicle.
Use only the generator’s handle for lifting the
unit or attaching any load restraints such as
ropes or tie-down straps. Do not attempt to lift
or secure the generator by holding onto any
of its other components.
Maintenance
Precautions
NOTE: Before performing maintenance on
the generator, review Safety on page 4 and
the following safety messages.
WARNING!
Avoid accidentally starting the gen-
erator during maintenance by remov-
ing the spark plug boot from the spark
plug. Allow hot components to cool
to the touch prior to performing any
maintenance procedure.
WARNING!
Internal pressure can build in the
engine crankcase while the engine
is running. Removing the oil ll plug