Tomahawk TG2000i User manual

TG2000i and TG3000i
INVERTER GENERATORS Operations Manual
FIND THE HOW TO GUIDE ON

Thank you very much for choosing this Tomahawk Inverter Generator.
This Manual will instruct you how to operate and use the generator set safely and
properly. Please be sure to read it carefully before using.
All technical data and diagramspresented in this User's Manual are
consistent with the latest product at the time of publication (January 2020).
The contents of this manual may be slightly different from the specific
model. Tomahawk Power is entitled to make revisions at any time, and the
revised version will be developed without prior notice. The copyright of this
User's Manual belongs to Tomahawk Power and this Manual is not permitted
to be reproduced without written consent of Tomahawk Power, violators
may be prosecuted.
This Manual is apermanent part of thegenerator set. If the generator setis resold,
the Manual must be resold together with the generator set.

Table of Contents
Safety Warning …………………………………………………………..…. 1
I. Safety Instructions ……………………………………………………….. 2
II. Parts and Components ……………………………………………………. 3
III. Control Functions ………………………………………………….…… 5
IV. Before Using the Generator …………………………………………..……8
V. Starting up the Generator ………………………………………………10
VI. Shutting Down the Generator …………………………………………10
VII. Using the Generator ………………………………………………..… 11
VIII. Service and Maintenance …………………………………….………16
IX. Storage and Transport…………………………………………….…… 22
X. Troubleshooting …………………………………………………….…… 23
XI. Technical Specifications………………………………………………..…24
XII. Circuit Diagram …………………………………………………………25
XIII. Generator Warranty ………………………………….……………........ 26

1
Safety Warning
Please read this Safety Warning in the User's Manual and the Safety Warning
decals onthe generator set carefully.
The Safety Warningscan alert you to potential hazards that could harm you and
others. In front of each SafetyWarning, there is one of four words "DANGER",
"WARNING", "ATTENTION", and "CAREFUL". Details are as follows:
DANGER Failure to follow instructionswill result in death or serious injury.
WARNING Failure to follow instructions will result in death or serious injury.
CAREFUL Failure to follow instructionswill result in minor injury.
ATTENTION Failure to follow instructionswill result in the damage to your
generator set and other components.


I. Safety Instructions
Before operating the generator, read and understand the Manual and
familiarize yourself with the safe operation procedures of the generator.
Do not use indoors. Humid environments may effect
performance of the generator.
Do not connect it to household
appliances directly.
Always shut down generator before
refueling.
Do not spill when refueling. Clean
up any spills if they are made.
Do not smoke when refueling.

3
II. Parts and Components
Lifting handle
Left enclosure
Fuel tank cap
Control panel
Recoil starter handle
Spark plug cover plate
Side shield of
muffler
Right enclosure
Air filter cover
plate
Oil cover plate
Muffler
Ventilation knob

4
Control Panel
① ② ③④⑤⑥ ⑦
①Idle switch
②Oil alarm indicator
③Overload indicator
④ AC output indicator ⑤ DC socket ⑥ AC circuit breaker
switch
⑦AC socket
⑧DC socket
⑨USB socket
⑩DC protection
Grounding terminal 3-in-One combination
switch (ON, OFF, CHOKE)
⑩ ⑨
⑧

5
III. Control Functions
（1）Three-in-one combination switch (also referred to as combination
switch)
RUN - After the engine has started, and been left for
5-10 seconds in the CHOKE position, rotate back to
the RUN position for proper function. Do not connect
an electrical load to the generator until the unit has
warmed up for at least 1 minute in the run position. If
the engine is hot, the unit can be started from the
RUN position.
ATTENTION When the engine is hot, start the generator
in the run position.
(2) Oil indicator (red)
When the oil in the crankcase drops below
the safety line, the oil protection system will
automatically shut down the engine, and the
oil alarm indicator lights up; the engine can
be restarted onlyafter the oil is filled to an adequate oil level.
Tip: In case the engine is unable to be started, turn the combination switch
to "RUN" position, and then pull startup handle. If oil indicator flashes a few
seconds, the oil volume is insufficient, fill oil and restart it.
(3) Overload indicator (red)
When the overload indicator lights up, the generator has detected that the
output of connected electrical equipment has been overloaded, causing
the frequency converter to be overheated or the AC voltage to rise. At this
moment, the AC protector will stop, to protect the generator from the
OFF - The ignition circuit is OFF and the engine will be unable to run.
CHOKE - When performing a cold start, rotate the switch to the
CHOKE position and pull the recoil until the engine starts. Be sure to
check for proper oil levels.

6
ON OFF
DC protection
connected electrical equipment. The AC indicator (green) is off and
overload indicator (red) lights up, but the engine will not stop running.
When overload indicator is on and the generator has no output, please take
following counter measures:
①Switch off electrical equipment connected, and shut down the generator.
②Reduce total power of electrical equipment connected to the range of
rated output.
③ Check whether there is any foreign matter blocking the air inlet, and
whether there is any abnormality in the related control components. If there
is any problem, eliminate it immediately.
④ After checking, restart the engine.
Tip: When using electrical equipment with a high starting current (such
as compressors, submersible pump, etc.), the overload indicator may start
to light up for a few seconds when started, but this is not due to the
failure mentioned earlier. If your equipment has variable speeds step
up the equipment to full load slowly.
（4）AC indicator (green)
The AC indicator light should be green when the output is normal.
（5）DC protection
If the current being drawn from the DC outlet is beyond the rated current, the
DC switch will automatically switch OFF to protect both the generator and the
connected equipment. To allow the current flow back to the DC outlet, press
the DC protection back to the ON position.
1) “ON” - Normal DC output
2) "OFF" - No DC output
ATTENTIONIf DC protection is in the OFF status, reduce the load
of the device connected to the generator. If DC protection is still in the
OFF status, stop using the equipment and consult your dealer.

7
AC recovery
(6) ECO-MODE switch
(1) "ON"
When the ECO-MODE switch is switched
to the "ON" position, the generator will
control the engine's output based on the load,
which will lead to more efficient fuel
consumption and reduced noise level.
2) "OFF"
When the ECO-MODE switch is set to the "OFF" position, the engine will
run at the rated speed, regardless of the connected load.
Tip:Always run the generator with the ECO-MODE in the OFF position
when connecting devices that have a high starting amp requirement, such
as air compressors or submersible pumps.
（7）Fuel tank cap
Remove fuel cap by unscrewing it counterclockwise.
（8）AC recovery
When the output is overloaded, the generator will protect itself and
automatically stop the electrical output. If this occurs, reduce the electrical
load and press the AC recovery switch.
（9）Grounding terminal
The grounding terminal shall be connected to the grounding wire to
prevent electric shock. If connected devices are grounded, be sure to
also ground the generator.

8
IV. Before Using the Generator
(1) Fuel
DANGER
• Fuel is flammable and toxic, please read All Safety Instructions
carefully before fueling;
• Do not overfill the fuel tank
• After fueling, confirm that the fuel tank cap has been tightened.
ATTENTION
•After refueling, clean off gasoline residue with a clean cloth;
• Unleaded gasoline must be used, as
leaded gasoline can cause serious damage
to the internal parts of the generator;
• Remove fuel tank cap, and add gasoline
up to the red indicating line. Do not fill past
this line.
• Fuel tank capacity: 4L or 1 gallon.
(2) Oil
This generator does not come with oil. Do not start up the generator
without filling with sufficient oil. Use SAE 10W-30 oil.
(3) Place the generator onto a horizontal plane surface;
(4) Unscrew the knob ①to remove oil cover plate ②;
(5) Unscrew oil dipstick ③;
6 ） Fill the tank with 0.35L oil or 11 ounces (SAE 10W/30 oil is
recommended, of which the grade is API standard Type SE or higher);
7 ） Reattach oil cover plate and tighten the oil dipstick.

9
（3）Pre-use inspection
WARNING
Before starting the generator, check the following components. If replacement
parts or repairs are needed, contact your local dealer.
Tip: Inspect your generator before every use
Pre-operation inspection
Fuel
• Check fuel level in fuel tank of the generator, add fuel if necessary.
Oil
• Check oil level of the generator, add oil if necessary;
• Check whether there is any oil leaking.
Issues when running the generator
•Check to make sure all breakers and switches are in the
correct position.
•Verify the connected devices are not overloading the
generator.
•Contact your local dealer if issues persists.

10
V. Starting up the Generator
(1) Disconnect all devices from the generator
(2) Switch ECO-MODE switch to "OFF"
(3) Turn ventilation knob of fuel tank cap to
"ON"
(4) Turn combination switch control to the
"CHOKE VALVE" position
eration
Choke
valve
Tip: If the engine is hot, start the generator in the "RUN" position
Tip: When pulling the recoil, be sure to keep a tight grip to prevent the
unit from falling over.
VI. Shutting Down the Generator
(1) Turn the combination switch to the "OFF" position;
(2) After the generator has completely cooled down, turn the entilation
knob on fuel tank cap to the "OFF" position.
(5) First gently pull recoil cord handle, until the cable is hooked tight,
and then pull with force.
(6) Once the generator starts, move the combination switch
to the "RUN" position.

VII. Using the Generator
(1) Proper conditions to run the generator
(2) Run in ambient temperature between 25 ~ 100 °F or -5 ~ 40°C;
(3) Ambient humidity below 95%;
(4) To ensure proper function of the generator, operate at altitudes up
to 1 mile above sea level. If operation is needed at higher altitudes,
a carburetor adjustment may be needed.
11
Standard atmospheric condition
• Ambient temperature Tr: 298k (77°F or 25°C)
• Relative air humidity Фr: 30%
• Absolute atmospheric pressure Pr: 100kPa
• Every 30% of increase in relative humidity of air will reduce the power
of generator by about 1.5%
• Every 300 m rising of ASL will reduce the power the generator by
about 4.5%
（2）Generator wiring
•When the generator is connected to a household power source as a
backup power supply, must be connected by a professional
electrician.
• After connecting the load to the generator, carefully check whether the
electrical connection is safe and reliable. An improper electrical
connection may cause generator damage or fire.
• Avoid connecting this generator to commercial power outlets.


•(xtension cableVPXVW be protected by a layer ofWRXJKHODVWLFUXEEHU
(IEC25) or other substitutes
Connection of AC power
WARNING All electrical equipment PXVW be disconnected before
inserting the plug.
ATTENTION
• Make sure that all electrical equipment, including wires and plugs, arein
good condition before connecting to the generator;
• Make sure that all loads driven by the generator are within rated load
range;
• Make sure that WKH load current is within rated current range of WKH
ratedsocket.
Tip: Make sure that the generator set is grounded, and if WKHelectrical
equipment requires grounding, the generator set must be grounded.
ķStart up the engine;
OK PROHIBITED
OK

13
②Turn ECO-MODE switch to "ON";
③Insert the plug into an AC outlet;
④Make sure that the AC indicator is lit up;
⑤Switch on the electrical equipment.
Tip: Before increasing engine speed, the ECO-MODE switch must
be switched to "OFF". If the generator set supplies power to multiple
loads or electrical equipment, start from large to small according to the
output of each electrical device.
（3）Generator grounding
In order to prevent any damage to the generator caused by electric shock or
improper electrical application, it is recommended that the generator is
grounded with a good conductor with insulating sheath.
①Please use grounding wire with sufficient electrical energy capacity;
②Connect one end of grounding wire to grounding bolt on control panel of
the generator set;

14
③Insert grounding body (iron rod with a diameter of 3/16 inch to 1/2 inch)
8 inches below into the ground and lead it out with conductor;
④Connect the other end of the grounding wire to the led wire of grounding
body.
（4）Battery charging
Tip:
• Rated DC voltage of this generator is 12V;
• After the generator is started, connect the battery to the generator;
• Before charging, make sure that DC protector has been switched on.
①Start up the generator.
②Connect red conductor of the battery to positive (+) terminal of the battery.
③Connect black conductor of the battery to negative (-) terminal of the battery.
ATTENTION
• Make sure that red conductor of the charger is connected to
the positive terminal (+) of the battery, and black wire and negative
terminal shall not be connected reverse.
Grounding terminal

15
• The connection between the charger cable and battery terminal must be
reliable, try to prevent the generator from moving or becoming loose.
• Follow all steps in the User's Manual for proper operation.
• In the process of charging, if the current exceeds the value of the
rated current, the DC protector will shut off. Press the DC protector to
"ON" to restart charging. If the DC protector switches off again, stop
charging immediately and contact your dealer.
Tip: Measure specific gravity of electrolyte to determine whether the battery
is fully charged. In the case of full charging, the specific gravity of electrolyte
is between 1.26 and 1.28. It is recommended to check the specific
gravity of electrolyte at least once an hour, to prevent the battery
from being overcharged.
!WARNING
Never connect or disconnect the the battery during charging. The spark
generated will ignite gas around the battery.
Battery contains sulfuric acid, which is toxic and could cause a fire. Please
avoid expose to skin, eyes,and clothing.
In the case of exposure to sulfuric acid, follow these steps:
• External exposure: flush with large amount of water, visit a hospital
• Ingestion: Drink large amount of water or milk, and drink milk, egg liquid or
vegetable oil containing magnesium oxide. Send victim to hospital
immediately
• Eye exposure: Flush with water for 15 minutes, and seek medical
treatment immediately.
Tip: The battery can generate explosive gas, keep it far away from sparks,
flames, cigarettes, etc. Keep ventilated when charging or using the
battery in a confined space.
Keep the batteries out of reach of children.

16
（5）Range of application
Before using the generator, make sure that the total load is within the
rated load range of the generator, otherwise the generator may be
damaged.
Tip:
• AC and DC can be used at the same time, but total the power amount
shall not exceed rated output power.
•When the total power exceeds the rated power, the overload indicator
will light up.
VIII. Service and Maintenance
Good maintenance and service is the best guarantee for safe, efficient, and
failure-free operation.
In order to keep the generator in good condition, you must inspect and maintain
it regularly. The maintenance schedule is as follows:

17
Maintenance cycle
Item
Each
First
maintenance is
carried out
after 1 month
or 20 hours of
use
Afterwards, the
maintenance is
carried out every
three months or
every 50 hours
Every year
or use of
100 hours
Engine oil
Check - fill
√
Replace
√
√
Gearbox
gear oil (if
any)
Check oil
level
√
Replace
√
√
Air cleaner
element
Inspection
√
clean
√
Replace
√
Settling bowl (if
any)
Clean
√
Spark plug
Clean -
adjust
√*
Spark eliminator
Clean
√
Idle speed (if any)
**
Check -
adjust
√
Valve clearance **
Check -
adjust
√
Fuel tank and
fuel filter ***
Clean
√
Fuel hose
Inspection
Every two years (Please replace if ecessary)
Cylinder head,
piston
Remove
carbon
deposit **
Displacement <225cc, every 125 hours; displacement
≥225cc, every 250 hours.
* These items shall be replaced if necessary;
** These items shall be maintained by the dealer authorized by the Company, unless the
user has proper tools and maintenance ability.
ATTENTION
• If unit is used regularly in high temperature or high load, oil must be
changed every 25 hours;
• If unit is used regularly in dusty or harsh environment, the air filter must be
cleaned every 10 hours. If necessary, the air filter must be replaced
every 25 hours;
•Unit must be maintained every maintenance cycle
• If maintenance cycle time has elapsed, perform the maintenance as soon
as possible as per the table above.