Rato R1250HIS-4 User manual

3kW
Owner’s Manual
GENERATOR
ORIGINALINSTRUCTION
SILENT INVERTER GASOLINE ENGINE GENERATOR

Thank you for choosing a silent inverter gasoline engine generator set of our
company.
This manual contains the information on how to do that. Please read it carefully
before operating. Operating safely and correctly can help you get the best results.
All information in this publication is based on the latest product information
available at the time of printing. The contents in this manual may be different
from the actual parts due to revision and other changes.
Our company reserves the right to make changes at any time without notice
and without incurring any obligation. No part of this publication may be
reproduced without our company’s written permission.
This manual should be considered a permanent part of the generator and should
accompany the generator if it is resold.
- 1 -

SAFETY WARNINGS
Personal safety and property safety of you and others are very important. .
Please read these messages which is preceded by a symbol or
carefully.
- 2 -

1. SAFETY INFORMATION......................................................................... 4
2. DESCRIPTION......................................................................................... 8
3. CONTROL FUNCTION........................................................................... 10
4. PREPARATION........................................................................................ 15
5. OPERATION....................................…..................................................... 18
SAFETY WARNINGS .................
................................................................... 2
CONTENTS
- 3 -
7. STORAGE................................................................................................ 32
8. TROUBLESHOOTING............................................................................ 34
9. SPECIFICATIONS................................................................................. 35
10. WIRING DIAGRAM.............................................................................. 36
6. MAINTENANCE.................................................................... . 25
.................

Read and understand this owner’s manual before operating your generator. It
will help you avoid accidents if you get familiar with your generator’s safe
operation procedures.
1. SAFETY INFORMATION
Never use it indoors Never use it in a wet condition
Never directly connect it to a home power system
- 4 -

Keep it at least 1m away from
inflammables
Never smoke when fueling
Don’t spill when fueling Stop the engine before fueling
- 5 -

If the generator is to be connected to a home power supply as a standby,
connection shall be performed by a professional electrician or by another
person with proficient electrical skill.
When the loads are connected to the generator, please carefully check whether
electrical connections are safe and reliable. Any improper connection may
cause damage to the generator, or cause a fire.
Connections to a Home Power Supply
- 6 -

Ground terminal
Generator Ground Circuit
In order to prevent electric shock due to shoddy electrical appliances or wrong
use of electricity, the generator must be grounded with a good-quality insulated
conductor.
Make sure the control panel, louver and the inverter bottom side cooling well
and without chips, mud and water come in. it may damage the engine, inverter
or alternator if the cooling vent blocked.
Do not mix the generator with other stuff If moving, storing or running the
unit.
It may cause the generator damage or bring property safety issue when the
generator in leakage.
- 7 -

2. DISCRIPTION
ķCarrying handle
ྚ
ྛ
Fuel tank cap
ྜ
Control panel
ྜྷ
Recoil starter
ྞ
Oil filler cap
ྟ
Louver
ྠ
Muffler
Spark plug maintenance cover
- 8 -
2.1 Control panel

lenaplortnoC2.2
ྚ
ྛ
ྜ
ྜྷ
ྞAC reset
ྟDC receptacle
USB
AC Breaker
ྠ
Ground (earth) terminal
ྡ
DC protector
ESC(Engine Smart Control)
Switch knob
AC receptacle
Parallel function
-9-
Electric
Recoil
Oil warning light
Overload indicator light
AC pilot light

3. CONTROLFUNCTION
3.1 Switch knob
3.2 LED functions display(For electric start version)
ķ(ngine switch \fuel valve “OFF”;
Ignition circuit is switched off. Fuel is switched off.
The engine will not run.
ྚEngine switch \fuel valve \ choke “ON”
Ignition circuit is switched on.Fuel is switched on. Choke is switched on.
The engine can be running.
ྛEngine switch \fuel valve \ choke “CHOKE” ;
Ignition circuit is switched on. Fuel is switched on. Choke is switched off.
The engine can be start.
TIP: The choke is not required to start a warm engine.
;
- 10 -
ElectricRecoil
25% 50% 75% 100% 110%
Oil change indicator
Air cleaner maintenance indicator
Spark plug maintenance indicator
Switch button
Fuel level indicator
On-load indicator
Oil alert indicator
Inveter alert indicator
Inverter running indicator
Power display
Multi functional digital meter























Multi functional digital meter
Red
Red
Red
Power display
Inverter alert indicator. Light is off while this light is
constantly on
- 11 -





Fuel level indicator


Voltage-U000, Frequency-F00.0, Total working time-000.0(0.1h) , Working
hours at one time-00.00 Switch the display by pushing .
Oil change indicator, first time indicate after 50hrs, and then indicate once
every 100hrs. Every indicating lasts 1hr.
Air cleaner maintenance indicator, indicate once every 100hrs. Every indicating
lasts 1hr.
Green

On-load indicator light on green while the inverter is on-load.
Red

Oil alert light on while the oil is empty
Green
 Inverter working indicator.
Red


Spark plug maintenance indicator,indicate once every 100hrs. Every indicating
lasts 1hr.
Full-Green, all lights on Low fuel level-lights
turn orange
Power lower than 25%(750W), light A truns green.
Power lower than 50%(1500W), light A&B truns green.
Power lower than 75%(2250W), light A&B&C truns green.
Power lower than 100%(3000W), light A&B&C&D truns green.
Power higher than 100%,but lower than 110%(3000W-3300W), light A&B&C&D
truns green&red.
Power higher than 110%(3300W), light A&B&C&D&E trunsred.
Power display
' ( ) * +
25% 50% 75% 100% 110%

ྚ
ྚ
ྛ
3.3 Recoil light
Tip:
ྛ
on and then the engine stops automatically. Unless you refill with oil, the
engine will not start again.
When the oil level falls below the lower level,
the oil warning light comes
If the engine stalls or does not start, turn the engine switch to “ON” and
then pull the recoil starter.
If the oil warning light flickers for a few seconds, the engine oil is insufficient.
Add oil and restart.
- 12 -
ķ
The overload indicator light comes on when an overload of a connected
electrical device is detected, the inverter control unit overheats, or the AC
output voltage rises. Then, the AC protector will trip, stopping power generation
in order to protect the generator and any connected electric devices. The AC
pilot light (Green) will go off and the overload indicator light (Red) will stay
on, but the engine will not stop running.
When the overload indicator light comes on and power generation stops,
proceed as follows:
1. Turn off any connected electric devices and stop the engine.
2. Reduce the total wattage of connected electric devices within the rated
output.
3. Check for blockages in the cooling air inlet and around the control unit.
If any blockages are found, remove.
4. After checking, restart the engine.
2. Overload indicator light (Red)
1. Oil warning light (red)

Tip: The overload indicator light may come on for a few seconds at first when
using electric devices that require a large starting current, such as a compressor
or a submergible pump. However, this is not a malfunction.
3. AC pilot light (Green)
- 13 -
ķ
The AC pilot light comes on when the engine starts and produces power.
3.4 DC protector
DC protector
The DC protector turns to “OFF” automatically when electric device
being connected to the generator is operating and current above the rated
flows. To use this equipment again, turn on DC protector by pressing its
button to “ON”
ˈ.tuptuotonsitnerructceriD”FFO
Direct current is output.ĀON”
Reduce the load of the connected electric device below the specified rated
output of the generator if the DC protector turns off. If the DC protector turns
off again, stop using the device immediately and consult our company
authorized dealer.
3.5 Engine smart control (ESC)

ྙGˈON”
When the ESC switch is turned to “ON”, the economy control unit
controls the engine speed according to the connected load. The results
are better fuel consumption and less noise.
ྚGˈOFF”
When the ESC switch is turned to“OFF”, the engine runs at the rated
r/min(4500r/min) regard-less of whether is a load connected or not.
Tip:
The ESC must be turned to“OFF”when using electric devices that require
a large starting current, such as a compressor of a submergible pump.
Ground (Earth) terminal connects the earth line
for prevention of electric shock. When the electric
device is earthed, always the generator must be
earthed.
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- 14 -
Optional configuration
PARALLEL CONNECTIONS
The parallel connection function allows two units to be
connected in parallel to boost output. The Parallel connection
cord is sold separately and includes operation and safety
instructions for use.

- 15 -
4. PREPARATION
Ь
-TION” carefully before filling.
ЬDo not overfill the fuel tank, otherwise it may overflow when the fuel
warms up and expands.
ЬAfter fill the fuel, make sure the fuel tank cap is
tightened securely.
Fuel is highly flammable and poisonous. Check “SAFETY INFORMA
4.1 Fuel
Ь
may deteriorate painted surfaces or plastic parts.
ЬUse only unleaded gasoline. The use of leaded gasoline will cause severe
damage to internal engine parts.
Remove the fuel tank cap and fill the fuel into the tank up to the red level .ķ
:KHQWKHIXHOILOWHUVFUHHQLVQRWmarked, the volume of the oil level distance
from the lip of the oil tank at the 25.4mm of the oil tank is nominal;
:KHQWKHIXHOILOWHULVPDUNHGWKe volume of the fuel is added to the mark.
Immediately wipe off spilled fuel with a clean, dry, soft cloth, since fuel
enilosagdedaelnU:leufdednemmoceR
Fuel tank capacity:
Total: 9.0 L

The generator has been shipped without engine oil. Do not start the engine till
fill with the sufficient engine oil.
1. Place the generator on a level surface.
2. Screw the oil service door knob to "OPEN" and remove the oil service door.
3. Screw-out the oil plug, then screw-in sealing plug into the pouring orifice,
and use the funnel to add the specified amount of oil.
4. Screw the oil plug, installed oil service door and keep the knob to "CLOSE".
4.2 Engine oil
Recommended engine oil: SAE SJ 15W-40
Recommended engine oil grade: API Service SE type or higher
Engine oil quantity: 0.6 L
Lubricating oil pipe
Oil service door Oil plug
- 16 -

- 17 -
If any item in the Pre-operation check is not working properly, have it inspected
and repaired before operating the generator.
The condition of a generator is the owner’s responsibility. Vital components
can start to deteriorate quickly and unexpectedly, even if the generator unused.
TIP: Pre-operation checks should be made each time the generator is used.
4.3 PRE-OPERATION CHECK
Pre-operation check
Fuel (See page 15)
ЬCheck fuel level in fuel tank.
ЬRefuel if necessary.
Engine oil (See page 16)
ЬCheck oil level in engine.
ЬIf necessary, add recommended oil to specified level.
ЬCheck generator for oil leakage.
The point where abnormality was recognized by use
ЬCheck operation.
ЬIf necessary, add recommended oil to specified level.
ЬIf necessary, consult our company authorized dealer.

- 18 -
•Never operate the engine in a closed area or it may cause unconsciousness
and death within a short time. Operate the engine in a well ventilated area.
• Before starting the engine, do not connect any electric devices.
5. OPERATION
•The generator has been shipped without engine oil. Do not start the engine
till fill with the sufficient engine oil.
• Do not tilt the generator when adding engine oil. This could result in
overfilling and damage to the engine.
TIP:
The generator can be used with the rated output load at standard atmospheric
conditions.
“Standard atmospheric conditions”
Ambient temperature 25℃
Barometric pressure 100kPa
Relative humidity 30%
The output of the generator varies due to change temperature, altitude (lower
air pressure at higher altitude) and humidity.
The output of the generator is reduced when the temperature, the humidity
and the altitude are higher than standard atmospheric conditions.
Additionally, the load must be reduced when using in a confined areas, as
generator cooling is affected.