Kubota Lowboy 2 Operator's Manual
GL6000-STD · GL6000-AUS
GL7000-USA · GL7000-USA-TM · GL7000-STD
GL9000-STD · GL9000-AUS
GL11000-USA · GL11000-USA-TM · GL11000-STD
D-2396
D-2397
G3102-8916-3
ENGLISH
3 WARNING
To prevent electrical shock the following instruction must be followed.
Before the generator can be connected to a building’s electrical
system, a licensed electrician must install an isolation (transfer) switch
in the building’s main fuse box. The switch is the connection point for
generator power and allows selection of generator or main line power
to the building.
This will prevent the generator from charging the main power line
(backfeeding) when the main power supply has failed or has been
turned off for line repair. Backfeeding can electrocute or injure line
maintenance personnel. Also, generator and building electrical system
damage can occur when normal operating power returns if unit is used
without an isolation switch.
California Proposition 65
WARNING
Engine exhaust, some of its constituents,
certain vehicle components and fluids,
contain or emit chemicals known to the
State of California to cause cancer and birth
defects or other reproductive harm.
IMPORTANT
The engine in this machine is not equipped by the manufacture with
a standard spark arrester.
It is a violation of California Public Resource Code Section 4442 to
use or operate this engine on or near any forest-covered, brushcovered land, or grass- covered land unless the exhaust system is
equipped with a working spark arrester meeting state laws. Other
states or federal areas may have similar laws.
FOREWORD
You are now the proud owner of a KUBOTA Diesel Engine Generator. This
generator is a product of KUBOTA quality engineering and manufacturing. It
is made of fine materials and under a rigid quality control system with
correct maintenance. It will give you long, satisfactory service. To obtain the
best use of your generator, please read this manual carefully. It will help you
become familiar with the operation of the generator and contains many
helpful hints about generator maintenance. It is KUBOTA's policy to utilize as
quickly as possible every advance in our research. The immediate use of
new techniques in the manufacture of products may cause some small parts
of this manual to be outdated. KUBOTA distributors and dealers will have the
most up-to-date information. Please do not hesitate to consult with them.
3 SAFETY FIRST
This symbol, the industry's "Safety Alert Symbol", is used throughout this
manual and on labels on the machine itself to warn of the possibility of
personal injury. Read these instructions carefully. It is essential that you
read the instructions and safety regulations before you attempt to assemble
or use this unit.
3
DANGER : Indicates an imminently hazardous situation which, if
not avoided, will result in death or serious injury.
3
WARNING : Indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
3
CAUTION : Indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury.
IMPORTANT :
Indicates that equipment or property damage could
result if instructions are not followed.
NOTE :
Gives helpful information.
ENGLISH
CONTENTS
SAFETY PRECAUTIONS ..................................................................................... 1
SERVICING OF GENERATOR ................................................................................. 1
SPECIFICATION ....................................................................................................... 2
NOMENCLATURE..................................................................................................... 4
GROUND FAULT CIRCUIT INTERRUPTER (GFCI) RECEPTACLE ....................... 8
PREPARATION TO SUPPLY THE ELECTRIC POWER ........................................ 10
CONNECTING THE LOAD...................................................................................... 12
PRE-OPERATION CHECK...................................................................................... 16
OPERATING THE GENERATOR............................................................................ 19
SERVICE INTERVALS ............................................................................................ 23
PERIODIC SERVICE............................................................................................... 25
TRANSPORTING / STORAGE................................................................................ 37
TROUBLESHOOTING............................................................................................. 38
AUTOMATIC START/STOP UNIT (A S/S UNIT)..................................................... 40
WIRING DIAGRAM.................................................................................................. 41
SAFETY PRECAUTIONS
A To operate the machine safely, be sure to follow the instructions below.
DANGER
To avoid personal injury:
A Hazard of being caught up in the machine: Do
not touch any rotating parts.
A Do not use or charge the battery if its fluid level
stands below the LOWER mark.
Otherwise, the component parts may deteriorate
earlier than expected, which may shorten the
service life or cause an explosion. Immediately,
add distilled water until the fluid level is between
the UPPER and LOWER levels. (for only refillable
battery)
WARNING
To avoid personal injury:
A Exhaust gas poisoning hazard: Do not use the
machine in any poorly-ventilated place such as
indoors and tunnels.
A Exhaust gas poisoning and fire hazard: Do not
direct the exhaust to people and buildings.
A Electric shock hazard: Do not touch the machine
with wet hands.
A Electric shock hazard: Do not touch the
terminals and sockets while the machine is
running.
A Electric shock and injury hazard: Do not check
and service the machine while it is running.
A Electric shock and injury hazard: Do not tamper
with the machine.
A Fire hazard: Flames prohibited. Keep the
machine more than 1 m(3 feet) away from
flammable materials.
A Electric shock hazard: Do not use the machine in
the rain.
1
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SAFETY PRECAUTIONS
ENGLISH
2
SAFETY PRECAUTIONS
CAUTION
To avoid personal injury:
A Electric shock and fire hazard: Do not connect
the machine to any indoor (commercial) power
outlet.
A Electric shock and injury hazard: Do not allow
children to run the machine.
A Electric shock and injury hazard: Turn off the
circuit breaker before starting the machine.
A Injury hazard: Do not touch the muffler.
A Injury hazard: Do not run the machine tilted.
A Injury hazard: Do not move the machine while it
is running.
A Fire hazard: Stop the engine before adding fuel.
A Fire hazard: Do not enclose the machine, nor
cover it with a box or the like.
A Fire hazard: Pay attention to the type and
amount of fuel.
A Do not get the warning label dirty or peeled off.
A Be sure to hand over the operation manual to
any other operator.
A Electric shock hazard: Ground the machine
using the ground terminal on the control panel.
CAUTION
To avoid personal injury:
A Anti-freeze contains poison. Wear rubber gloves
to avoid personal injury. In case of contact with
skin, wash it off immediately.
A DO NOT mix different types of Anti-freeze. The
mixture can produce chemical reaction causing
harmful substances. Use approved Anti-freeze.
A Be mindful of the environment and the ecology.
Before draining any fluids, find out the correct
way of disposing of them. Observe the relevant
environmental protection regulations when
disposing of oil, fuel, coolant, brake fluid, filters
and batteries.
A When draining fluids from the engine, place
some container underneath the engine body.
A DO NOT pour waste onto the grounds, down a
drain, or into any water source.
3
ENGLISH
SAFETY PRECAUTIONS
ENGLISH
4
SAFETY PRECAUTIONS
CAUTION
To avoid personal injury:
A When checking engine or servicing, place the
engine on a wide and level ground. DO NOT work
on anything that is supported ONLY by lift jacks
or a hoist. Always use blocks or correct stands
to support the engine before servicing.
A Detach the battery from the engine before
conducting service. Put a "DO NOT OPERATE!"
tag in the key switch to avoid accidental starting.
A To avoid sparks from an accidental short circuit
always disconnect the battery's ground cable (-)
first and connect it last.
A Be sure to stop the engine and remove the key
when
conducting
daily
and
periodic
maintenance, servicing and cleaning.
A Check or conduct maintenance after the engine,
coolant, muffler, or muffler cover have been
cooled off completely.
A Always use the appropriate tools and jig-fixture
in good condition when performing any service
work. Make sure you understand how to use
them before service.
A Use ONLY correct engine barring techniques for
manually rotating the engine. DO NOT attempt to
rotate the engine by pulling or prying on the
cooling fan and V-belt. This practice can cause
serious personal injury or premature machine
damage to the cooling fan.
A Replace fuel pipes and lubricant pipes with their
hose clamps every 2 years or earlier whether
they are damaged or not. They are made of
rubber and are aged gradually.
A When servicing is performed together by two or
more persons, take care to perform all work
safely.
A Keep first aid kit and fire extinguisher handy at
all times.
5
DANGER, WARNING AND CAUTION LABELS
Pay special attention to all labels on the generator.
Refer to following representations for labels used on the GL Series Generator. Labels are available individually from your KUBOTA Dealer.
(1) Part No. G3907-8832-0
(2) Part No. G3907-8830-0
(3) Part No. G3907-8836-0
(4) Part No. G3907-8831-0
(5) Part No. G3102-5090-2 (for USA)
(6) Part No. G3907-8824-0
(5) Part No. 18901-5090-2
ENGLISH
SAFETY PRECAUTIONS
ENGLISH
6
SAFETY PRECAUTIONS
(7) Part No. 18620-8806-0
(8) Part No. G3907-8833-0
(9) Part No. G3102-8841-0
(10) Part No. G3101-8832-0
(11) Part No. 6C040-5559-0
(12) Part No. G3102-8806-0
(13) Part No. G3906-8831-0
(14) Part No. G3102-8838-0 (for U.S.A.)
(15) Part No. G3102-8839-0 (for U.S.A.)
7
ENGLISH
SAFETY PRECAUTIONS
CARE OF DANGER, WARNING AND CAUTION LABELS
1. Keep danger, warning and caution labels clean and free from obstructing material.
2. Clean danger, warning and caution labels with soap and water, dry with a soft cloth.
3. Replace damaged or missing danger, warning and caution labels with new labels from your
local KUBOTA Dealer.
4. If a component with danger, warning and caution label(s) affixed is replaced with new part,
make sure new label(s) is (are) attached in the same location(s) as the replaced component.
5. Mount new danger, warning and caution labels by applying on a clean dry surface and
pressing any bubbles to outside edge.
SERVICING OF GENERATOR
Your dealer is interested in your new generator and has
the desire to help you get the most value from it. After
reading this manual thoroughly, you will find that you
can do some of the regular maintenance yourself.
However, when in need of parts or major service, be
sure to see your KUBOTA Dealer.
For service, contact the KUBOTA Dealership from
which you purchased your generator or your local
KUBOTA Dealer.
When in need of parts, be prepared to give your dealer
the generator and engine serial numbers.
Locate the serial numbers now and record them in the
space provided below.
model
Generator
Engine
Date of
Purchase
Name of Dealer
(To be filled in by purchaser)
(1) Generator serial number
(2) Generator model
(3) Engine serial number
Serial No.
1
ENGLISH
SERVICING OF GENERATOR
ENGLISH
2
SPECIFICATION
SPECIFICATION
GENERATOR
Model
Unit
Design
—
Frequency
Rated Output (COP)
GL6000
–STD
GL7000
–AUS
–USA
–USA-TM
–STD
Salient-pole, revolving-field AC generator (AVR system with separate and self-excitation brush)
Hz
50
60
kVA
5.5
6.5
kW
5.5
6.5
Rated Voltage
V
220
240
120/240
110/220
Rated amperage
A
25
22.9
54.2/27.1
59.1/29.5
Phase & Wire
ø-W
Power Factor
%
1-2
1-4
No. of Poles
—
2
Insulation
—
Rotor coil: Class F, Stator coil: Class B
Voltage Regulation
%
5 (No load to full load)
Type of Coupling
—
Direct coupled
100
DIESEL ENGINE
Model
—
Z482
Design
—
Vertical, water-cooled, 4-cycle diesel engine
No. of cylinders
—
2
Bore × stroke
mm (in.)
ø 67 × 68 (2.6 × 2.7)
Displacement
L (cu. in.)
Engine speed
rpm
Lubricating Oil
—
API service class CD or higher
Oil capacity
L (U.S.gal.)
2.2 (0.58)
Coolant capacity
L (U.S.gal.)
3.7 (0.98)
0.479 (29.2)
3000
3600
SET
Fuel
—
Fuel consumption (at full load)
L (U.S.gal.)/h
Fuel tank capacity
L (U.S.gal.)
Continuous Operating Hours
hrs
Battery (V × Ah/5Hr)
—
Starting System
L×W×H
Approx Net Wt.
Output
Diesel fuel No. 2 (ASTM D975)
2.4 (0.63)
2.7 (0.71)
28 (7.4)
12
10
38B20R (12V × 28Ah)
—
Electric
mm (in.)
1066 × 618 × 698 (42.0 × 24.3 × 27.5)
kg (lbs.)
235 (518)
Terminal
—
{
—
—
{
{
Receptacle
—
{
{
{
{
{
Emergency Stop System
—
In case of abnormal : Oil pressure, water temperature
GENERATOR
Model
Unit
Design
—
Frequency
Rated Output (COP)
GL9000
–STD
GL11000
–AUS
–USA
–USA-TM
–STD
Salient-pole, revolving-field AC generator (AVR system with separate and self-excitation brush)
Hz
50
60
kVA
8
10
kW
8
10
Rated Voltage
V
220
240
120/240
110/220
Rated amperage
A
36.4
33.3
83.3/41.7
90.9/45.5
Phase & Wire
ø-W
Power Factor
%
1-2
1-3
No. of Poles
—
2
Insulation
—
Rotor coil: Class F, Stator coil: Class B
Voltage Regulation
%
5 (No load to full load)
Type of Coupling
—
Direct coupled
100
DIESEL ENGINE
Model
—
D722
Design
—
Vertical, water-cooled, 4-cycle diesel engine
No. of cylinders
—
3
Bore × stroke
mm (in.)
ø 67 × 68 (2.6 × 2.7)
Displacement
L (cu. in.)
Engine speed
rpm
Lubricating Oil
—
API service class CD or higher
Oil capacity
L (U.S.gal.)
3.4 (0.90)
Coolant capacity
L (U.S.gal.)
4.1 (1.1)
0.719 (43.9)
3000
3600
SET
Fuel
—
Fuel consumption (at full load)
L (U.S.gal.)/h
Fuel tank capacity
L (U.S.gal.)
Continuous Operating Hours
hrs
Battery (V × Ah/5Hr)
—
Starting System
L×W×H
Approx Net Wt.
Output
Diesel fuel No. 2 (ASTM D975)
3.3 (0.87)
4.1 (1.08)
28 (7.4)
8.5
7.0
55B24R (12V × 36Ah)
—
Electric
mm (in.)
1281 × 618 × 698 (50.4 × 24.3 × 27.5)
kg (lbs.)
295 (650)
Terminal
—
{
—
—
{
{
Receptacle
—
{
{
{
{
{
Emergency Stop System
—
In case of abnormal : Oil pressure, water temperature
3
ENGLISH
SPECIFICATION
ENGLISH
4
NOMENCLATURE
NOMENCLATURE
(1) Door
(2) Coolant filling port
(3) Hook
(4) Fuel tank cap
(5) Fuel gauge
(6) Control panel
(7) Base
(8) Engine oil drain plug
(9) Door lock
(10) Coolant drain plug
(11) Reserve tank
(12) Fuel filter
(13) Oil dipstick
(14) Oil filter cartridge
(15) Muffler
(16) Radiator
(17) Radiator cap
(18) Solenoid
(19) Engine oil port
(20) Battery
(21) Air cleaner
(22) Door stopper
(23) Fuel tank
(24) Alternator
(25) Safety shield
B Control Panel
Standard Model
C 1 Phase Type
(120/240V Dual voltage Type)
[GL11000-USA]
[GL7000-USA]
(1) A.C. Voltmeter
(2) Glow timer lamp
(3) Water temperature lamp
(4) Oil pressure lamp
(5) Battery charge lamp
(6) Starter switch (key)
(7) Circuit breaker
(8) Hour meter
(9) Ground terminal
(10) Protector (Receptacle)
(11) Pilot lamp
(12) Full power switch
(A) Receptacle
(B) Receptacle
(C) Receptacle
(D) Receptacle
5
ENGLISH
NOMENCLATURE
ENGLISH
6
NOMENCLATURE
C 1 Phase Type
(120V/240V Dual voltage type)
C 1 Phase Type
(110V/220V Dual voltage type)
[GL11000-USA-TM]
[GL11000-STD]
[GL7000-USA-TM]
[GL7000-STD]
(1) A.C. Voltmeter
(2) Glow timer lamp
(3) Water temperature lamp
(4) Oil pressure lamp
(5) Battery charge lamp
(6) Starter switch (key)
(7) Circuit breaker
(8) Hour meter
(9) Ground terminal
(10) Protector (Receptacle)
(11) Pilot lamp
(12) Terminals (Output)
(13) Full power switch
(A) Receptacle
NOMENCLATURE
ENGLISH
AUS Model
C 1 Phase Type (220V Type)
C 1 Phase Type (240V Type)
[GL9000-STD]
[GL9000-AUS]
[GL6000-STD]
[GL6000-AUS]
(1) A.C. Voltmeter
(2) Glow timer lamp
(3) Water temperature lamp
(4) Oil pressure lamp
(5) Battery charge lamp
(6) Starter switch (key)
(7) Circuit breaker
(8) Hour meter
(9) Ground terminal
(10) Protector (Receptacle)
(11) Pilot lamp
(12) Terminals (Output)
(A) Receptacle
(1) A.C. Voltmeter
(2) Glow timer lamp
(3) Water temperature lamp
(4) Oil pressure lamp
(5) Battery charge lamp
(6) Starter switch (key)
(7) Circuit breaker
(8) Hour meter
(9) Ground terminal
(10) Protector (Receptacle)
(11) Pilot lamp
7
(A) Receptacles
8
GROUND FAULT CIRCUIT INTERRUPTER (GFCI) RECEPTACLE
ENGLISH
GROUND FAULT CIRCUIT INTERRUPTER (GFCI) RECEPTACLE
WARNING
(1) Do not operate in wet or damp
conditions.
(2) This Ground Fault Circuit
Interrupter reduces the hazards
of ground fault currents that can
cause loss of life.
(3) The GFCI will not protect against
short circuits or over loads.
(4) Do not use the GFCI or other
standard receptacles on the
circuit until the GFCI has been
fully and successfully tested.
See following test procedure.
TESTING PROCEDURE
(1)
(2)
(3)
(4)
Unplug all appliances from the GFCI receptacle.
Start the engine.
At the circuit breaker turn power ON to the circuit.
Depress the "TEST" button.
The "RESET" button should extend with a click.
If the "RESET" button does not extend, contact your
KUBOTA dealer.
(5) Depress the "RESET" button firmly into the GFCI
unit, until an audible click is heard.
If it resets properly, the "RESET" button will be flush
with the surface of the "TEST" button.
If the "RESET" button is not flush with "TEST"
button, contact your KUBOTA dealer.
5. After disassembling and assembling the generator,
check the circuit of GFCI with the RECEPTACLE
CIRCUIT TESTER and test as above
TEST
PROCEDURE.
(1) "TEST" button
(2) "RESET" button
B Easy Checker
When an abnormal condition occurs with a part
monitored by the easy checker while the engine is
running, a lamp flashes to warn the operator of the
impending trouble.
B When the "RESET" button extends during
operation:
(1) Unplug all appliances from the GFCI receptacle.
(2) Depress the "RESET" button firmly into the GFCI
unit, until an audible click is heard.
If the GFCI can not be reset, the GFCI is faulty.
Contact your KUBOTA dealer. If the GFCI resets
properly, check such things as fault insulation or wet
wiring inside the appliance or its cord. If you've
found the short, it should be repaired before it is
used again.
1. Perform this test on a regular monthly basis to
ensure proper operation of the GFCI receptacle.
2. If the generator is stored outdoors, unprotected from
the weather, test the GFCI receptacle before each
use.
3. An attached "OCCUPANT'S TEST RECORD" label
should be retained and placed in a conspicuous
location to remind the operator that for maximum
protection against electrical shock.
4. Record your test on the GFCI test card.
(1) Charge warning lamp
(2) Water temperature-overheat warning lamp, flashes on when
cooling water rises to 112° to 118°C.
(3) Engine oil pressure drop warning lamp, flashes on below 68.7
to 127.5 kPa (0.7 to 1.3 kgf/cm2) oil pressure.
(4) Glow timer lamp
B Control Box
(1) Emergency unit
(2) Regulator
(3) Glow relay
(4) Relay A
(5) Relay B
(6) Glow lamp timer
(7) Starter relay
(8) Exterior connection terminal taps
(9) Separate excitation unit
9
ENGLISH
GROUND FAULT CIRCUIT INTERRUPTER (GFCI) RECEPTACLE
ENGLISH
10
PREPARATION TO SUPPLY THE ELECTRIC POWER
PREPARATION TO SUPPLY THE ELECTRIC POWER
1. Generator grounding
The end user, equipment owner or operator must
contact his local, state, county or municipal electric
code department to determine the approved generator
grounding method to be used in his application or
location.
Recommendations in the NEC (National Electrical
Code), NFPA (National Fire Protection Association),
AUSTRALIAN STANDARDS and OSHA (Occupational
Safety and Health Administration) regulations must be
followed to assure compliance and safe operation.
Always be sure to ground (earth) the generator
terminals to comply with the local, state, national or
OSHA requirements.
One possible connection method for construction site
use is as follows:
2. Recommended capacity
devices
of electrical
APPLICATION RANGE
You can operate the GL-series generator in the
following range.
Typical
Apparatus
Light and
heaters
Commutator
motor
Induction
motor
GL6000
5.5 kW
2.8 kW
0.8 kW
GL7000
6.5 kW
3.3 kW
0.8 kW
GL9000
8 kW
4.0 kW
1.2 kW
GL11000
10 kW
5.0 kW
1.6 kW
A Keep an inverter load below 50% of the generator
capacity.
A Make sure that total active mercury lamp load is
below 30% or so of the generator capacity. Turn on
the mercury lamps one by one. Be careful not to turn
off the lamps and on again immediately. The
generator voltage may rise to extremely high levels
and the AVR may get damaged.
A Before turning on the lamps again, wait for 10
minutes or so until the lamps cool down enough.
A The data shown above is only a guideline to
approximate load capacities and may vary from
generator model to generator model, with different
types of loads at rated outputs. These values may be
different from actual applications because of the
input characteristics peculiar to each load.
(1) Generator ground
terminal
(A) #6AWG
Flexible copper ground
connection
(B) Metal ground rod or building
cold water pipe system per
N.E.C. code
A Connecting a motor.
When starting the motor, the voltage drops
immediately. The circuit may be opened if an
electromagnetic switch is connected to the same
circuit. When connecting two motors or more, make
sure the total current capacity of the motors does not
exceed the total rated current.
A Connecting to lights and electric heaters.
When connecting to lights or electric heaters, the
generator can be used up to the rated capacity.
When using a single phase, it can be used up to the
rated current.
A Power factor calculations.
The power factor calculation is used to determine
input of the electrical devices.
AC devices
Electric power (W)
= Voltage (V) × Current (A) ÷ Power factor
Power factors of commonly used devices are listed in
the following table.
Load type
Power factor
Single-phase induction motors
0.4 to 0.75
Electric heaters, incandescent
lamps
1.0
Commutator motor
0.8 to 0.95
Fluorescent lamps, mercury
lamps
0.4 to 0.9
AC arc welder
0.4 to 0.6
A Ordinarily, a motor is rated in kW. This does not refer
to motor output.
Motor input (kVA)
=
Motor output (kW)
Motor efficiency × power factor
A If a lighting system is employed together with some
types of computers and inverter air-conditioners
and/or the regulated power supply for TV sets, the
lights might suffer flickering. This phenomenon does
not indicate a fault of the generator: it is caused by
poor matching between the above-mentioned
regulated power supply and the generator's
automatic voltage regulator. In such a case, modify
the load combination to eliminate the flickering.
11
ENGLISH
PREPARATION TO SUPPLY THE ELECTRIC POWER
ENGLISH
12
CONNECTING THE LOAD
CONNECTING THE LOAD
B Connection Notes
WARNING
To avoid personal injury:
A Before the generator can be
connected to a building’s electrical
system, a licensed electrician must
install an isolation (transfer) switch
in the building’s main fuse box. The
switch is the connection point for
generator
power
and
allows
selection of generator or main line
power to the building. This will
prevent the generator from charging
the main power line (backfeeding)
when the main power supply has
failed or has been turned off for line
repair. Backfeeding can electrocute
or
injure
line
maintenance
personnel. Also, generator and
building electrical system damage
can occur when normal operating
power returns if unit is used without
an isolation switch.
1. Avoid connecting the generator to commercial
power outlet.
2. Avoid connecting the generator in parallel with any
other generator.
B Connecting the Load (Terminal output
Model)
WARNING
To avoid personal injury:
A Connect or disconnect the load to
the AC receptacles or terminals only
when the engine is stopped.
A For your safety, close the terminal
cover after connecting the load.
A For your safety, secure the cover
with the lock bolts.
1. Turn OFF the circuit breaker on the control panel.
2. Connect the load to the A.C. output terminals.
3. Be sure to close the terminal cover after connecting
the load.
(1) Circuit breaker
(2) Terminals (output)
(3) Cover lock bolt
CONNECTING THE LOAD
(1) Light
(2) Television
(3) Air conditioner
(4) Electric drill
(5) Motor pump
C Single phase 3 terminals type (1P4W type)
(Dual voltage type)
i) GL7000-STD
60Hz 110V
ii) GL7000-STD
60Hz 110/220V
ENGLISH
C Single phase 2 terminals type
i) GL6000-STD, GL9000-STD
50Hz 220V
13
(1) Light
(2) Television
(3) Air conditioner
(4) Electric drill
(5) Motor pump
C Single phase 3 terminals type (1P3W type)
(Dual voltage type)
i) GL11000-STD
60Hz 110/220V
WARNING
To avoid personal injury:
A Do not switch the voltage selector
with generator on. Serious damage
will occur.
(1) Light
(2) Television
(3) Air conditioner
(4) Electric drill
(5) Motor pump
ENGLISH
14
CONNECTING THE LOAD
C Single phase 3 terminals type (1P4W type)
(Dual voltage type)
i) GL7000-USA-TM
60Hz 120V
ii) GL7000-USA-TM
60Hz 120/240V
C Single phase 3 terminals type (1P3W type)
(Dual voltage type)
i) GL11000-USA-TM
60Hz 120/240V
WARNING
To avoid personal injury:
A Do not switch the voltage selector
with generator on. Serious damage
will occur.
(1) Light
(2) Television
(3) Air conditioner
(4) Electric drill
(5) Motor pump
(1) Light
(2) Television
(3) Air conditioner
(4) Electric drill
(5) Motor pump
B Connecting the Load (Receptacles output
Model)
15
B Connecting the Load (AUS Model)
WARNING
WARNING
To avoid personal injury:
A Connect or disconnect the load to
the AC receptacle only when the
engine is stopped.
i) GL11000-USA
60Hz 120/240V
ii) GL7000-USA
60Hz 120/240V
To avoid personal injury:
A Connect or disconnect the load to
the AC receptacle only when the
engine is stopped.
i) GL9000-AUS
50Hz 240V
ii) GL6000-AUS
50Hz 240V
1. Turn OFF the circuit breakers on the control panel.
1. Turn OFF the circuit breakers on the control panel.
[
(1) Circuit breaker
2. Connect the load to the A.C. receptacles.
(1) Circuit breaker
(A) Receptacle
(B) Receptacle
(C) Receptacle
(D) Receptacle
2. Connect the load to the A.C. receptacles.
ENGLISH
CONNECTING THE LOAD
ENGLISH
16
PRE-OPERATION CHECK
PRE-OPERATION CHECK
B How to open the Door
CAUTION
To avoid personal injury from contact
with moving parts;
A DO NOT open the door or generator
side cover while the engine is
running.
A Do not touch muffler or exhaust
pipes while they are hot; Severe
burns could result.
C Check items
-Check for oil and coolant leakage
-Check cooling air inlet and outlet for obstructions or
clogging
-Check radiator fins for clogging
-Check fan belt tension
-Check engine oil level
-Check coolant level
-Check generator grounding
-Refuel
(See "Fuel" in "PERIODIC SERVICE" section.)
-Care of danger, warning and caution labels
(See "DANGER, WARNING AND CAUTION LABELS"
in " SAFETY PRECAUTIONS" section.)
CAUTION
To avoid personal injury from contact
with moving parts;
A DO NOT open the door or generator
side cover while the engine is
running.
A Do not touch muffler or exhaust
pipes while they are hot; Severe
burns could result.
(1) Door stopper
B Daily Check
To prevent problems from occurring, it is important to
know the condition of the generator. Always perform the
following check items before starting the generator.
CAUTION
To avoid personal injury:
A Before checking or servicing the
generator, make sure it is on a level
surface with the engine shut off.
C Battery
The battery is shipped in dry, charged condition without
electrolyte.
The battery must be charged properly before using for
the first time.
DANGER
To avoid the possibility of battery
explosion:
The battery comes in two types:
refillable and non-refillable. For using
the refillable type battery, follow the
instructions below.
A DO NOT use or charge the battery if
the fluid level is below the LOWER
(lower limit level) mark.
Otherwise, the battery component
parts may deteriorate prematurely,
shorten the battery's service life;
which may cause an explosion.
Immediately, add distilled water
until the battery's fluid level comes
somewhere between the UPPER and
LOWER levels.
A Keep all sparks and flames away
from the battery and fuel tank. A
battery, especially when charging,
will give off hydrogen and oxygen
gases which can explode and cause
serious personal injury.
1. Remove the vent plugs.
2. Fill cells up to the upper level with electrolyte.
[Specific gravity of sulfuric acid 1.270 to 1.290 (at
20°C = 68°F)]
3. Allow the battery to sit for about one hour after filling.
4. If the electrolyte level is dropped, refill with
electrolyte up to the upper level.
5. Replace the vent plugs.
6. Charge the battery at the normal charging rate of 6.0
amperes.
7. Wash off any electrolyte which may have spilled.
17
C Engine oil
The generator has been shipped without engine oil.
Fill with oil to the correct level before attempting to
start the engine.
1. Place the machine on a level surface.
2. Remove the oil cap.
3. Add engine oil of grade CD or higher, up to the upper
mark on the oil level gauge.
A See "Engine Oil" in "PERIODIC SERVICE" section
for engine oil capacity and checking engine oil level.
C Coolant
CAUTION
To avoid personal injury:
A Place the machine on a level
surface.
A DO NOT remove the radiator cap
while coolant is hot. When cool,
rotate the radiator cap slowly to the
first stop to allow excess pressure
to escape. Then remove cap
completely.
1. Remove the radiator cap and fill with specified
coolant until the coolant level is just below the port.
2. Fill with coolant to the "FULL" mark on the reserve
tank.
3. Securely tighten radiator cap and reserve tank cap.
(1) Vent plug opening
(A) Upper level
(2) Electrolyte level indication tube (B) Lower level
(3) Indicated level
A The duration of dry charged efficiency, will decrease
in proportion to the period of time elapsed after
shipment and during storage. To obtain the longest
service life of the battery, it is necessary for the
battery to be charged for a sufficient period of time.
Continue to charge until all cells are gassing freely,
and the voltage and specific gravity reading in all
cells remain constant for 3 or more successive
readings taken at 30 minute intervals.
A When the battery has been charged fully, the
specific gravity of electrolyte should be 1.270 to
1.290 (at 20°C = 68°F).
A See "Radiator" in "PERIODIC SERVICE" section for
changing coolant.
ENGLISH
PRE-OPERATION CHECK
ENGLISH
18
PRE-OPERATION CHECK
C Fuel
WARNING
To avoid personal injury:
A DO NOT refuel when engine is
running or hot.
A Always shut off the engine before
refueling.
A DO NOT overfill fuel system. If any
fuel overflows, wipe it up completely
before starting operation.
A When refueling, keep all flames,
sparks and cigarettes away from
generator.
1. Always fill the fuel through the fuel tank strainer.
2. Make sure that dirt or water does not enter the fuel
tank.
3. Fill with Diesel fuel No.2-D (ASTMD975).
4. Below 0°C (32°F) a mix of No.1-D and No.2-D is
acceptable.
5. Fuel level is read by fuel gauge.
A If the fuel tank should empty completely causing the
engine to stop, then the fuel system requires air
bleeding after filling the tank and before restarting
the engine.
(See "Air bleeding the fuel system" in "PERIODIC
SERVICE" section.)
OPERATING THE GENERATOR
19
ENGLISH
OPERATING THE GENERATOR
CAUTION
To avoid personal injury:
A Read " SAFETY PRECAUTIONS"
in the front of this manual.
A Read the danger, warning and
caution labels located on the
generator.
A To avoid the danger of exhaust fume
poisoning, do not operate the
engine in a closed building without
proper ventilation.
A Always turn OFF the circuit breaker
before starting the generator.
A Turn OFF all switches on the
electrical devices.
A Check the wiring and connections
of the electrical devices before
starting the machine.
A DO NOT touch the live parts during
operation.
(1) Starter switch (Key)
(2) Safety switch
(3) Terminal cover
B Starting the Engine
1. Turn OFF all switches on the electrical
devices.
2. Turn OFF the circuit breakers on the
control panel.
B SAFETY DEVICES
1. Terminal cover is equipped with safety devices to
detect the opening and/or closing condition of cover.
2. Safety switch (2) is located on the terminal cover.
If you turn the key switch to "START" with the
terminal cover open, the starter of engine will not
activate.
3. Turn the key switch to "STOP" to close the terminal
cover and then restart the engine.
4. If you open the terminal cover while the engine is
running, the emergency stop system will stop the
engine.
To maintain the battery's life as much as possible,
turn the key switch to the "STOP" position.
(A) "STOP"
(B) "ON"
(C) "PREHEAT"
(D) "START"
(1) Circuit breaker
(2) "OFF"
ENGLISH
20
OPERATING THE GENERATOR
3. Ensure that the fuel lever is set to the
"OPEN" Position.
(1) Fuel lever
(2) Fuel filter pot
(A) "OPEN"
4. Insert the key into the main switch and
turn it "ON".
5. Check the battery charge lamp and oil
pressure lamp are ON.
7. Turn the key to the "START" position
and release when the engine starts.
(1) Starter switch (Key)
(A) "OFF"
(B) "ON"
(C) "PREHEAT"
(D) "START"
A Do not run the starter motor continuously for more
than 10 seconds at a time, or it may damage the
starter. If the engine fails to start, wait for about 30
seconds and try again.
8. Check to see that the battery charge
lamp, oil pressure lamp and water
temperature lamp are OFF.
9. Check the warning lamps.
Whenever the engine stops automatically
during operation, correct the problem
before restarting the engine.
(1) Water temperature lamp
(2) Oil pressure lamp
(3) Battery charge lamp
(4) Glow timer lamp
A Do not use ether or any starting fluid for starting the
engine, or severe engine damage will occur.
6. Turn the key to "PREHEAT" position.
A See "Cold Weather Starting" section as to the
preheating times.
A Be sure to warm up the engine, not only in winter, but
also in warmer seasons. An insufficiently warmed-up
engine can shorten its service life.
C Warm-up in cold ambient temperatures
In cold weather, the engine oil may be cold with increased viscosity. This can delay oil circulation or abnormally low oil pressure for some time after engine
start-up. This can result trouble in the lubrication circuit
or damage to the engine moving parts.
To prevent the above problems, perform the following
instructions:
Warm up the engine at rated revolution with no load.
Ambient temperature
Warm-up time requirement
Above 0°C (32°F)
At least 10 minutes
0°C (32°F) to -10°C (14°F)
10 to 20 minutes
Below -10°C (14°F)
More than 20 minutes
10.Turn ON the circuit breaker on the
control panel.
21
B Cold Weather Starting
If the ambient temperature is below * -5°C (23°F) and
the engine is very cold, start it in the following manner:
Take steps (1) through (5) in "STARTING THE ENGINE" section.
6. Turn the starter switch (key) to the
"PREHEAT" position until the glow plug
indicator goes off.
A If the ambient temperature is low, the preheating
time will take longer.
A Shown below are the standard preheating times for
various temperatures. This operation, however, is
not required, when the engine is warmed up.
Ambient temperature
Above 10°C (50°F)
Preheating time
NO NEED
10°C (50°F) to
-5°C (23°F)
Until glow lamp goes off
*Below -5°C (23°F)
Approx. 5 seconds after
the glow lamp goes off
Limit of continuous use
20 seconds
7. Turn the key to "START" position and
the engine should start.
(1) Circuit breaker
(2) "ON"
A When there is a severe overload or short circuit in
the wiring of the generator, the circuit breaker turns
OFF. If this happens, eliminate the cause and then
turn the circuit breaker ON again.
11.Turn ON the electrical device switches
for the connections.
(If the engine fails to start after 10 seconds, turn
off the key for 30 seconds. Then repeat steps (6)
and (7) above.)
A Do not allow the starter motor to run continuously for
more than 10 seconds.
A Be sure to warm up the engine, not only in winter, but
also in warmer seasons. An insufficiently warmed-up
engine can shorten its service life.
A When there is possibility of temperature drops below
-15°C (5°F) detach the battery from the machine,
and keep it indoor in a safe area. Reinstalled the
battery before the next operation.
ENGLISH
OPERATING THE GENERATOR
ENGLISH
22
OPERATING THE GENERATOR
B Stopping the Engine
1. Turn OFF all electrical device switches
for connected loads.
2. Turn OFF the circuit breakers.
3. Allow the engine to run with no load for
about 5 minutes before stopping the
engine completely.
4. Turn the main switch (key) to the "OFF"
position.
B If the Engine Fails to Stop in the Usual
Procedure (EMERGENCY STOP)
If the engine does not stop after turning the key switch
to "OFF" position, take the following (EMERGENCY
STOP) procedure.
CAUTION
To avoid personal injury:
A Keep your hands away from the
rotating parts, such as cooling fan
and V-belt. Otherwise personal
injury may be caused when
manipulating the engine stop lever.
1. Open the door, using the door knob.
2. Turn the engine stop lever to "STOP" direction and
hold it for 5 to 10 seconds to shut off the engine.
(1) Starter switch (Key)
(A) "OFF"
(B) "ON"
(C) "PREHEAT"
(D) "START"
5. Turn the fuel lever to the "CLOSE"
position.
(1) Engine stop lever
(A) "START"
(B) "STOP"
3. After stopping the engine, make sure that the door is
closed and the main switch (key) is at OFF.
4. The following causes are possible for such unusual
engine shut-off.
Pinpoint and correct the cause of trouble.
A Check for the stop solenoid.
A Check to see if the battery has discharged too
much or is in trouble.
A Check for disconnection of the battery terminals.
(1) Fuel lever
(2) Fuel filter pot
(A) "CLOSE"
23
SERVICE INTERVALS
Observe the following for service and maintenance.
The lubricating oil change intervals listed in the table below are for Classes CF, CE and CD lubricating oils of API
classification with a low-sulfur fuel in use. If the CF-4 or CG-4 lubricating oil is used with a high-sulfur fuel, change the
lubricating oil at shorter intervals than recommended in the table below depending on the operating condition.
Interval
No.
Check point
First Every Every Every Every Every Every Every Every Every Every Ref.
page
50
50
100
200
400
500
800 1500 3000
1
2
hours hours hours hours hours hours hours hours hours year years
1
Check of fuel pipes and clamp bands
26
2
Change of engine oil
28
3
Cleaning of air cleaner element
29
4
Check of battery electrolyte level
33
5
Check of fan belt tension
36
6
Check of radiator hoses and clamp bands
32
7
Check of intake air hose
—
8
Replacement of oil filter cartridge
28
9
Replacement of fuel filter cartridge or element
—
10 Cleaning of fuel filter
27
11 Cleaning of water jacket (radiator interior)
32
12 Replacement of fan belt
36
13 Check of valve clearance
—
14 Replacement of air cleaner element
29
Check of damage in electric wiring
15
and loose connections
35
Check of fuel injection nozzle
16
injection pressure
—
17 Check of injection pump
@
*1 @
@
@
*2 @
*3 @
—
*3 @
18
Replacement of fuel pipes, fuel
gauge and clamp bands
26
*3 @
19
Replacement of radiator hoses
and clamp bands
32
20 Replacement of battery
33
21 Change of radiator coolant (L.L.C.)
31
22 Replacement of intake air hose
—
*4 @
A The jobs indicated by must be done after the first 50 hours of operation.
*1 Air cleaner should be cleaned more often in dusty conditions than in normal conditions.
*2 After 6 times of cleaning.
*3 Consult your local KUBOTA Dealer for this service.
*4 Replace earlier if necessary.
A The items listed above (@ marked) are registered as emission related critical parts by KUBOTA in the U.S. EPA
non-road emission regulation. As the engine owner, you are responsible for the performance of the required
maintenance on the engine according to the above instruction.
Please see the Warranty Statement in detail.
A When the battery is used for less than 100 hours in a year, check its electrolyte yearly. (for refillable battery’s only)
ENGLISH
SERVICE INTERVALS
ENGLISH
24
SERVICE INTERVALS
For North American market
C Engine Oil:
A Oil used in the engine should have an American Petroleum Institute (API) service classification and Proper SAE
Engine Oil according to the ambient temperatures as shown P27.
A Refer to the following table for the suitable API classification engine oil according to and the fuel.
Fuel used
Engine oil classification (API classification)
Ultra Low Sulfur Fuel [<0.0015% (15 ppm)]
CF, CF-4, CG-4, CH-4 or CI-4
A The CJ-4 engine oil is intended for DPF (Diesel Particulate Filter) type engines.
C Fuel:
A Cetane number of 45 minimum. Cetane number greater than 50 is preferred, especially for temperatures below
-20°C (-4°F) or elevations above 1500 m (5000 ft).
A Diesel fuels specified to EN 590 or ASTM D975 are recommended.
A No.2-D is a distillate fuel of lower volatility for engines in industrial and heavy mobile service. (SAE J313 JUN87)
A Since this engine adopts EPA Tier 4 and Interim Tier 4 standards, the use of ultra low sulfur fuel is mandatory in
EPA regulated area (North America). Therefore, please use No.2-D S15 diesel fuel as an alternative to No.2-D,
or use No.1-D S15 diesel fuel as an alternative to No.1-D if outside air temperature is below -10°C (14°F).
For other than North American market
C Engine Oil:
A Oil used in the engine should have an American Petroleum Institute (API) service classification and Proper SAE
Engine Oil according to the ambient temperatures as shown P27.
A With the emission control now in effect, the CF-4 and CG-4 lubricating oils have been developed for use of a lowsulfur fuel on on-road vehicle engines. When an off-road vehicle engine runs on a high-sulfur fuel, it is advisable
to employ the "CF or better" lubricating oil with a high Total Base Number (TBN of 10 minimum).
A Refer to the following table for the suitable API classification engine oil according to the fuel.
Fuel used
High Sulfur Fuel [
0.05% (500 ppm)]
Low Sulfur Fuel [<0.05% (500 ppm)] or
Ultra Low Sulfur Fuel [<0.0015% (15 ppm)]
Engine oil classification (API classification)
CF
(If the "CF-4, CG-4, CH-4 or CI-4" lubricating oil is used with a high-sulfur
fuel, change the lubricating oil at shorter intervals. (approximately half))
CF, CF-4, CG-4, CH-4 or CI-4
A The CJ-4 engine oil is intended for DPF (Diesel Particulate Filter) type engines.
C Fuel:
A Cetane number of 45 minimum. Cetane number greater than 50 is preferred, especially for temperatures below
-20°C (-4°F) or elevations above 1500 m (5000 ft).
A If diesel fuel with sulfur content greater than 0.5% (5000 ppm) sulfur content is used, reduce the service interval
for engine oil and filter by 50%.
A DO NOT use diesel fuel with sulfur content greater than 1.0% (10000 ppm).
A Diesel fuels specified to EN 590 or ASTM D975 are recommended.
A No.2-D is a distillate fuel of lower volatility for engines in industrial and heavy mobile service. (SAE J313 JUN87)
25
PERIODIC SERVICE
B Fuel
Fuel is flammable and can be dangerous. You should
handle fuel with care.
C Fuel level check and refueling
1. Check to see that the fuel level is above the lower
limit of the fuel level gauge.
2. If the fuel is too low, add fuel to the upper limit. Do
not overfill.
CAUTION
To avoid personal injury:
A DO NOT mix gasoline or alcohol
with diesel fuel. This mixture can
cause an explosion.
A Be careful not to spill fuel during
refueling. If fuel should spill, wipe it
off at once, or it may cause a fire.
A Stop the engine before refueling.
Keep the machine away from fire.
A Be sure to stop the engine while
refueling or bleeding and when
cleaning or changing fuel filter or
fuel pipes. DO NOT smoke when
working around the machine or
when refueling.
A Check the above fuel systems in a
well ventilated and open place.
A When fuel and lubricant are spilled,
refuel after the machine cooled
down.
(1) Fuel level gauge
No.2-D is a distillate fuel oil of lower volatility for engines
in industrial and heavy mobile service.
(SAE J313 JUN87)
Grade of Diesel Fuel Oil According to ASTM D975
Flash Point,
°C
(°F)
Water and
Sediment,
volume %
Carbon
Residue on,
10 percent
Residuum, %
Ash, weight
%
Min
Max
Max
Max
52
(125)
0.05
0.35
0.01
Distillation
Viscosity
TemperaKinematic
tures, °C (°F) cSt or mm2/s
90% Point
at 40°C
Min
Viscosity
Sayboit,
SUS
at 100°F
Sulfur, Copper
strip Cetane
weight CorroNum%
ber
sion
Max
Max
Min
Max
Min
Max
Max
Min
282 338
(540) (640)
1.9
4.1
32.6 40.1 0.50 No.3
40
The cetane number is required not to be less than 45.
A Be sure to use a strainer when filling the fuel tank, or
dirt or sand in the fuel may cause trouble in the fuel
injection pump.
A Always use diesel fuel. You are required not to use
alternative fuel, because its quality is unknown and
affect the generator performance. Kerosene, which
is very low in cetane rating, adversely affects the
engine. Diesel fuel differs in grades depending on
the temperature.
A Be careful not to let the fuel tank become empty, or
air can enter the fuel system, necessitating bleeding
before next engine start.
ENGLISH
PERIODIC SERVICE
ENGLISH
26
PERIODIC SERVICE
Fuel tank capacity
L (U.S.gal.)
Model
C Checking the fuel pipes
Capacity
GL6000, GL7000
[Engine model : Z482]
GL9000, GL11000
[Engine model : D722]
28 (7.4)
C Air bleeding the fuel system
CAUTION
To avoid personal injury;
A Do not bleed a hot engine as this
could cause fuel to spill onto a hot
exhaust manifold creating a danger
of fire.
Air bleeding of the fuel system is required if;
A After the fuel filter and pipes have been detached
and refitted;
A After the fuel tank has become empty; or
A Before the engine is to be used after long storage.
[PROCEDURE]
1. Fill the fuel tank to the fullest extent. Open the fuel
filter cock.
2. Loosen air vent plug of the fuel filter a few turns.
3. Screw back the plug when bubbles do not come up
any more.
4. Open the air vent plug on top of the fuel injection
pump.
5. Retighten the plug when bubbles do not come up
any more.
CAUTION
To avoid personal injury:
A Check or replace the fuel pipes after
stopping the engine. Broken fuel
pipes can cause fires.
Check the fuel pipes every 50 hours of operation. When
if;
1. If the clamp band is loose, apply oil to the screw of
the band, and tighten the band securely.
2. If the fuel pipes made of rubber became worn out
replace them and clamp bands every two years.
3. If the fuel pipes and clamp bands are found worn or
damaged before two years' time, replace or repair
them at once.
4. After replacement of the pipes and bands, air-bleed
the fuel system.
A When the fuel pipes are not installed, plug them at
both ends with clean cloth or paper to prevent dirt
from entering. Dirt in the pipes can cause fuel
injection pump malfunction.
(1) Clamp band
(2) Fuel pipe
(1) Fuel filter cock
(2) Air vent plug
(3) Fuel filter pot
(A) "OPEN"
(B) "CLOSE"
C Cleaning the fuel filter pot
Every 100 hours of operation, clean the fuel filter in a
clean place to prevent dust intrusion.
1. Close the fuel filter lever.
27
A Do not operate a diesel engine when engine oil is
overfilled. This can effect the air intake system which
could result in engine damage or malfunction.
C Checking oil level and adding engine oil
1. Check the engine oil level before starting or more
than 5 minutes after stopping the engine.
2. Remove the oil level gauge, wipe it clean and
reinstall it.
3. Take the oil level gauge out again, and check the oil
level.
(1) Fuel filter lever
(2) Fuel filter pot
(A) "CLOSE"
(B) "OPEN"
2. Remove the top cap, and rinse the inside with diesel
fuel.
3. Take out the element, and rinse it with diesel fuel.
4. After cleaning, reinstall the fuel filter, keeping out of
dust and dirt.
5. Air-bleed the injection pump.
A Entrance of dust and dirt can cause a malfunction of
the fuel injection pump and the injection nozzle.
Wash the fuel filter pot periodically.
B Engine Oil
CAUTION
To avoid personal injury:
A Be sure to stop the engine before
checking and changing the engine
oil and the oil filter cartridge.
A DO NOT touch muffler or exhaust
pipes while they are hot; severe
burns could result. Always stop the
engine and allow it to cool before
conducting
inspections,
maintenance, or cleaning.
A Contact with engine oil can damage
your skin.
Put on gloves when handling engine
oil. If you come in contact with
engine oil, wash it off immediately.
A Be sure to check the engine oil on a level surface. If
placed on gradients, oil quantity can not be
measured accurately.
(1) Oil port
(2) Oil level gauge
[Lower end of oil level gauge]
(A) Engine oil level within this
range is proper.
4. If the oil level is too low, remove the oil port, and add
new oil to the prescribed level.
5. After adding oil, wait more than 5 minutes and check
the oil level again. It takes some time for the oil to
drain down to the oil pan.
6. If the engine is operated with the oil level nearing the
lower limit, the oil may deteriorate more quickly than
normal, therefore, keeping the oil level near the
upper limit is recommended.
Engine oil capacity
L (U.S.qts.)
Model
Capacity
GL6000, GL7000
[Engine model : Z482]
2.2 (2.3)
GL9000, GL11000
[Engine model : D722]
3.4 (3.6)
A Engine oil should be MIL-L-2104C or have
properties of API classification CD grades or higher.
Change the type of engine oil according to the
ambient temperature.
above 25°C (77°F)
SAE30
or SAE10W-30
SAE10W-40
0 to 25°C (32 to 77°F)
SAE20
or SAE10W-30
SAE10W-40
below 0°C (32°F)
SAE10W or SAE10W-30
SAE10W-40
ENGLISH
PERIODIC SERVICE
ENGLISH
28
PERIODIC SERVICE
A When using oil of different brands from the previous
one, be sure to drain all the previous oil before
adding the new engine oil.
C Changing Engine Oil
CAUTION
To avoid personal injury:
A Be sure to stop the engine before
draining engine oil.
A When draining engine oil, place a
suitable container underneath the
engine and dispose of it according
to local regulations.
A DO NOT drain oil from a hot engine.
Allow engine to cool down
sufficiently to avoid being burned.
C Replacing the Oil Filter Cartridge
CAUTION
To avoid personal injury:
A Be sure to stop the engine before
changing the oil filter cartridge.
A Allow engine to cool down
sufficiently. Oil can be hot and
cause burns.
1. Replace the oil filter cartridge every 200 hours of
operation.
2. Remove the old oil filter cartridge with a filter wrench.
Dispose of filter properly.
3. Apply a film of oil to the gasket of the new cartridge.
4. Screw in the cartridge by hand. When the gasket
contacts the seal surface, tighten the cartridge firmly
only by hand. If you tighten the cartridge with a
wrench, it will be tightened too much.
1. Change oil after the initial 50 hours of operation and
every 100 hours thereafter.
2. Remove the drain plug to drain the engine oil. Drain
all the old oil, drains easier and completely when the
engine is warm. Inspect drain plug gasket. Replace
if damaged.
(1) Oil filter cartridge
(2) Remove with a filter wrench
(Tighten with your hand)
(1) Engine oil drain plug
3. Install the oil drain plug and gasket.
4. Add new engine oil up to the upper line of the oil level
gauge.
5. After the new cartridge has been replaced, the
engine oil level normally decreases a little. Therefore
run the engine for a while and check for oil leaks
through the seal before checking the engine oil level.
Add oil if necessary.
A Completely wipe off any oil sticking to the machine
in the filter area.
PERIODIC SERVICE
29
ENGLISH
B Air Cleaner
CAUTION
To avoid personal injury:
A Be sure to stop the engine before
cleaning air filter element.
A Make sure hooking clip is tight enough. If it is loose,
dust and dirt may be sucked into the engine, causing
excessive wear or premature engine failure and
need for engine repair.
C Cleaning Secondary Air Filter Element
Since the air cleaner employed on this engine is a dry
type, never apply oil to it.
1. Open the evacuator valve once a week under
ordinary conditions — or daily when used in severe
or dusty conditions. This will get rid of large particles
of dust and dirt.
2. Wipe the inside air cleaner clean with cloth if it is dirty
or wet.
3. Avoid touching the element except when cleaning.
4. When dry dust adheres to the element, blow
compressed air from the inside turning the element.
Pressure of compressed air must be under 205 kPa
(2.1 kgf/cm2, 30 psi).
5. When carbon or oil adheres to the element, soak the
element in detergent for 15 minutes, then wash it
several times in water, rinse with clean water and dry
it naturally.
6. After the element is fully dried, inspect the inside of
the element with a light, and check if it is damaged
or not. (referring to the instructions on the label
attached to the element.)
7. Replace the primary element every year or every 6
cleanings. If the primary element is heavily stained,
replace it sooner. At this time, also replace the
secondary element.
8. The secondary element should be removed only if it
is to be replaced.
9. To protect the engine, do not remove the secondary
element in normal servicing of the primary element.
(1) Air cleaner body
(2) Cover
(3) Secondary element
(4) Primary element
(5) Evacuator valve
(6) Hooking clip
(7) Air cleaner
C Cleaning Primary Air Filter Element
1. To clean the element, use clean dry compressed air
on the inside of the element.
Air pressure at the nozzle must not exceed 205 kPa
(2.1 kgf/cm2, 30 psi).
Maintain reasonable distance between the nozzle
and filter.
2. To wash the elements, use Donaldson ND-1500
Filter Cleaner, or its equivalent, which is especially
effective on oily and soot-laden filters. Follow
instructions that are supplied with the filter cleaner.
C Evacuator Valve
Open the evacuator valve once a week under ordinary
conditions - or daily when used in dusty condition - to
get rid of large particles of dust and dirt.
ENGLISH
30
PERIODIC SERVICE
B Radiator
A If the dust cup is mounted incorrectly, dust or dirt will
not collect in the cup and allow the dust to come into
direct contact with the element and thus require the
element be replaced prematurely.
Make it a rule to check the coolant level before every operation.
CAUTION
(1) Air cleaner body
(2) Secondary element
(3) Primary element
(4) Dust cup
(5) "TOP" mark
(6) Evecuator valve
C Air Cleaner with Dust Cup
Remove and clean out the dust cup once a week under
normal conditions or daily in extreme conditions.
Do not allow the dust cup to fill above half way regardless of conditions.
Install the air cleaner dust cup with "TOP" indicated on
the rear of the cup in the upward position with horizontally mounted air cleaner bodies or vertically mounted
air cleaner bodies, the cup may be mounted in any direction.
To avoid personal injury:
A DO NOT stop the engine suddenly,
stop it after about 5 minutes of
unloaded idling.
A Work only after letting the engine
and radiator cool off completely
(more than 30 minutes after it has
been stopped).
A DO NOT remove the radiator cap
while coolant is hot. When cool,
rotate cap slowly to the first stop to
allow excess pressure to escape.
Then remove cap completely.
If overheating should occur, steam
gushes out from the radiator or
reserve tank; Allow the engine to
cool before attempting to open the
cap. Severe burns could result.
C Checking coolant level, adding coolant
1. Remove the radiator cap after the engine has
completely cooled, and check to see that coolant
reaches the supply port.
(1) Radiator cap
(2) Coolant filling port
2. If the radiator is provided with a reserve tank, check
the coolant level of the reserve tank. When it is
between the "FULL" and "LOW" marks, the coolant
will usually last for one day’s work.
31
C Changing coolant
1. To drain coolant, always remove both drain plugs
and simultaneously open the radiator cap as well.
With the radiator cap kept closed, the coolant will not
drain completely. Dispose of used coolant properly.
2. Remove the overflow pipe of the radiator pressure
cap to drain the reserve tank.
3. Prescribed coolant volume
L (U.S.qts.)
Model
Capacity
GL6000, GL7000
[Engine model : Z482]
3.7 (3.9)
GL9000, GL11000
[Engine model : D722]
4.1 (4.3)
include reserve tank 0.6 L (0.63 U.S.qts.)
(1) Reserve tank
(2) Cap
(A) "FULL"
Upper line 0.6 L
(0.63 U.s.qts.)
(B) "LOW"
3. When the coolant level drops due to evaporation,
add only 50/50 coolant up to the full level.
4. Check to see the two drain plug; one is at the
crankcase side and the other is at the lower part of
the radiator as shown below.
(1) Coolant drain plug (Radiator)
(2) Radiator
(3) Coolant drain plug (Engine)
A If the radiator cap has to be removed, proceed with
caution and securely retighten the cap.
A If coolant is leaking, consult your local KUBOTA
Dealer.
A Make sure that muddy or sea water is not used in
the radiator.
A Use clean, fresh water and 50% anti-freeze to fill the
recovery tank.
A Do not refill reserve tank with coolant over the
"FULL" level mark.
A Be sure to close the radiator cap securely. If the cap
is loose or improperly closed, coolant may leak out
and decrease the level quickly.
A When coolant is added, coolant level may drop the
first time the engine is started. Stop the engine, and
add coolant if necessary.
4. An improperly tightened radiator cap or a gap
between the cap and the seat increases loss of
coolant.
5. Coolant (Water and anti-freeze)
All seasons: Pure water and anti-freeze (See "Antifreeze" in "Radiator" section.)
C Remedies for Rapid Coolant Loss
1. Check for dust and dirt between the radiator fins and
cooling tube. Clean the fins and the tubes as if
necessary.
2. Check the tension of the fan belt. If loose, tighten it
securely.
3. Check the internal blockage in the radiator cooling
tubes. If scale forms in the tubes, clean with the
scale inhibitor or its equivalent.
ENGLISH
PERIODIC SERVICE
ENGLISH
32
PERIODIC SERVICE
C Checking radiator hoses and clamps
C Cleaning radiator core (outside)
If dust is between the fin and tube, wash it away with
running water.
CAUTION
To avoid personal injury:
A Be sure to check radiator hoses and
hose clamps periodically. If radiator
hoses are damaged or coolant leaks
out, overheating can occur.
Check to see if radiator hoses are properly fixed every 200
hours of operation or 6 months, whichever comes first.
1. If hose clamps are loose or water leaks, tighten hose
clamps securely.
2. Replace hoses and hose clamps if radiator hoses
are swollen, hardened or cracked.
Replace hoses and hose clamps every 2 years, or earlier as required, if hoses are found to be swollen, hardened or cracked.
(1) Radiator hose
(2) Hose clamp
C Precaution at overheating
The event that the coolant temperature is nearly or more
than the boiling point is called "OVERHEATING".
While running, make the following checks to see that all
parts are working correctly. If anything is unusual, inspect it, referring to the relevant description in "SERVICE INTERVALS" and "PERIODIC SERVICE" section.
A Coolant
If the coolant temperature warning lamp lights up or if
steam or coolant does not stop squirting from the radiator overflow pipe, turn off the load and keep the engine
idling (COOLING-DOWN) for at least 5 minutes to let
it cool down gradually. Then stop the engine and take
the following inspection and servicing.
1. Check to see if the coolant runs short or if there is
any coolant leak;
2. Check to see if there is any obstacle around the
cooling air inlet or outlet;
3. Check to see if there is any dirt or dust between
radiator fins and tube;
4. Check to see if the fan belt is too loose; and
5. Check to see if radiator water pipe is clogged.
A Do not clean radiator with firm tools such as spatulas
or screwdrivers. They may damage the delicate fins
or tubes. It can cause coolant leaks or decrease
cooling performance.
A Be careful to keep water off of electrical parts.
C Cleaning the radiator
Clean the cooling system of the engine every 500 hours.
In addition, clean it before adding anti-freeze and before
stopping use of anti-freeze.
B Anti-freeze
CAUTION
To avoid personal injury:
A When using anti-freeze, put on
some protection such as rubber
gloves
(Anti-freeze
contains
poison.).
A If should drink anti-freeze, throw up
at once and take medical attention.
A When anti-freeze comes in contact
with the skin or clothing, wash it off
immediately.
A Do not mix different types of antifreeze. The mixture can produce
chemical reaction causing harmful
substances.
A Anti-freeze is extremely flammable
and
explosive
under
certain
conditions. Keep fire and children
away from anti-freeze.
A When draining fluids from the
engine, place some container
underneath the engine body.
A Do not pour waste onto the
grounds, down a drain, or into any
water source.
A Also,
observe
the
relevant
environmental
protection
regulations when disposing of antifreeze.
Always use a 50/50 mix of long-life coolant and clean
soft water in KUBOTA engines.
Contact KUBOTA concerning coolant for extreme
conditions.
1. Long-life coolant (hereafter LLC) comes in several
types. Use ethylene glycol (EG) type for this engine.
2. Before employing LLC-mixed cooling water, flush
the radiator with fresh water. Repeat this procedure
2 or 3 times to clean up the radiator and engine block
from inside.
3. Mixing the LLC
Premix 50% LLC with 50% clean soft water. When
mixing, stir it up well, and then fill into the radiator.
4. The procedure for the mixing of water and antifreeze differs according to the make of the antifreeze. Refer to SAE J1034 standard, more
specifically also to SAE J814c.
Vol %
Anti-freeze
50
Freezing Point
Boiling Point *
°C
°F
°C
°F
-37
-34
108
226
*At 1.013 × 10 Pa (760 mmHg) pressure
(atmospheric). A higher boiling point is obtained by
using a radiator pressure cap which permits the
development of pressure within the cooling system.
5. Adding the LLC
(1) Add only water if the coolant level reduces in the
cooling system by evaporation.
(2) If there is a coolant leak, add the LLC of the
same manufacturer and type in the same coolant percentage.
*Never add any long-life coolant of different manufacturer. (Different brands may have different additive components, and the engine may fail to perform
as specified.)
6. When the LLC is mixed, do not employ any radiator
cleaning agent. The LLC contains anti-corrosive
agent. If mixed with the cleaning agent, sludge may
build up, adversely affecting the engine parts.
7. Kubota's genuine long-life coolant has a service life
of 2 years. Be sure to change the coolant every 2
years.
A The above data represent industry standards that
necessitate a minimum glycol content in the
concentrated anti-freeze.
B Battery
WARNING
To avoid personal injury:
A Be careful not to let the battery
electrolyte contact your body or
clothing.
A Wear eye protection and rubber
gloves, since the diluted sulfuric
acid solution burns skin and eyes,
and eats holes in clothing. Should
this occur, immediately wash it off
with running water and get medical
attention.
33
Mishandling of the battery shortens the service life and
adds to maintenance costs. Obtain the maximum performance and the longest life of the battery by handling
properly and with care.
Engine starting will be difficult, if the battery charge is
low. Be sure to keep the battery in a fully charged state
for best performance and battery life.
C Battery charging
DANGER
To avoid the possibility of battery
explosion:
The batteries come in two types:
refillable and non-refillable. For using
the refillable type battery, follow the
instructions below.
A DO Not use or charge the battery if
the fluid level is below the LOWER
(lower limit level) mark.
Otherwise, the battery component
parts may deteriorate prematurely,
which will shorten the battery’s
service life or may cause an
explosion.
Immediately, add distilled water
until the battery’s fluid level comes
somewhere between the UPPER and
LOWER levels.
A When the battery is being activated,
hydrogen and oxygen gases in the
battery are extremely explosive.
Keep open sparks and flames away
from the battery at all times,
especially when charging the
battery.
A When charging the battery, ensure
the vent caps are securely in place
(if equipped).
A When disconnecting the cable from
the battery, start with the negative
terminal, and when connecting
them, start with the positive terminal
first.
A DO NOT check the battery charge by
placing a metal object across the
terminals. Use a voltmeter or
hydrometer.
ENGLISH
PERIODIC SERVICE
ENGLISH
34
PERIODIC SERVICE
1. Make sure that each electrolyte level is to the bottom
of vent wells, if necessary, add only distilled water in
a well-ventilated place.
(1) Battery electrolyte level
(A) "TOO LOW"
(B) "PROPER"
(C) "TOO HIGH"
2. To slow charge the battery, connect the charger
positive terminal to the battery positive terminal, and
the negative to the negative, then recharge in the
normal manner.
3. Quick recharging charges the battery at a high rate
in a short time. This is only for emergencies.
4. Recharge the battery as early as possible, or battery
life will be extremely shortened.
5. When exchanging an old battery for a new one, use
a battery of equal specifications shown in page 2 to
3.
(1) Thick cable red
(2) Battery case
(3) Negative / ground cable black
(4) Plug
(A) "HIGHEST LEVEL"
(B) "LOWEST LEVEL"
A Connect the charger positive terminal to the battery
positive terminal, and negative to the negative.
A When disconnecting the cable from the battery, start
with the negative terminal first.
When connecting the cable to the battery, start with
the positive terminal first.
If reversed, the contact of tools on the battery may
cause a shortage.
A DO NOT remove or disconnect the battery during
operation, otherwise the engine cannot be stopped
with the key switch.
C Instructions for Long Term Storage
1. When storing the generator for long periods of time,
remove the battery, adjust the electrolyte to the
proper level, and store in a dry and dark place.
2. The battery naturally discharges while it is stored.
Recharge it 1 month in summer, and every 2 months
in winter.
C Battery Boost Starting
DANGER
To avoid serious personal injury:
A Battery gases can explode. Keep
cigarettes, sparks, and flames away
from battery.
A If generator battery is frozen, do not
battery boost start engine.
A DO NOT connect other end of
negative jumper cable to negative
terminal of generator battery.
A Connect to chassis or engine.
When battery boost starting engine, follow the instructions below to safely start the engine.
1. Bring helper battery of the same voltage as disabled
generator within easy cable reach.
2. Put on safety goggles and rubber gloves.
3. Ensure the vent caps are securely in place. (if
equipped)
4. Cover vent caps with damp rags. Do not allow the
rag to touch the battery terminals.
5. Attach the red clamp to the positive (red,
or pos.)
terminal of the dead battery and clamp the other end
of the same cable to the positive (red,
or pos.)
terminal of the helper battery.
35
B Electric Wiring
CAUTION
To avoid personal injury:
Shorting of electric cable or wiring may
cause a fire.
A Check to see if electric cables and
wiring are swollen, hardened or
cracked.
A Keep dust and water away from all
power connections.
Loose wiring and terminal parts
make bad connections, be sure to
repair them before starting the
engine.
Damaged wiring reduces the capacity of electrical parts.
Change or repair damaged wiring immediately.
B Fuse
(1) Dead battery
(A) Connect cables in
(2) Lay a damp rag over vent
numerical order.
caps.
Disconnect in reverse
(3) Jumper cables
order after use.
(4) Engine block or frame
(5) Helper battery
The electrical system is protected from potential damage by fuses.
A blown fuse indicates that there is an overload or a
short circuit somewhere in the electrical system.
If any of the fuses should blow, replace with a new one
of the same capacity.
6. Clamp the other cable to the negative (black,
or
neg.) terminal of the helper battery.
7. Clamp the other end to the engine block or frame of
the generator as far from the dead battery as
possible.
8. Start the disabled generator.
9. Disconnect the jumper cables in the exact reverse
order of attachment. (Steps 7, 6 and 5).
10.Remove and discard the damp rags.
A This machine has a 12 volt negative
ground
starting system.
A Use only same voltage for jump starting.
A Use of a higher voltage source on generators
electrical system could result in severe damage to
generators electrical system.
(A) Fuse box
A Before replacing a blown fuse, determine why the
fuse blew and make any necessary repairs. Failure
to follow this procedure may result in serious
damage to the generator electrical system. Refer to
the troubleshooting section of this manual or your
local KUBOTA Dealer for specific information.
ENGLISH
PERIODIC SERVICE
ENGLISH
36
PERIODIC SERVICE
[Engine model ··· Z482, D722]
(1) Fuse 3A
(2) Fuse 10A
(3) Fuse 5A
(4) Fuse 15A
(5) Fuse 15A
(6) Fuse 10A
:
:
:
:
:
:
External connection terminal block
AC (Accessory Line)
Glow
Solenoid
(spare)
(spare)
B Fan Belt
C Adjusting Fan Belt Tension
CAUTION
To avoid personal injury:
A Be sure to stop the engine and
remove the key before checking the
belt tension.
A Be sure to reinstall the detached
safety shield after maintenance or
checking.
Proper fan belt tension
A deflection of between 12 to
14 mm (0.47 to 0.55 in.) when
the belt is pressed in the middle
of the span.
1. Stop the engine and remove the key.
2. Apply moderate thumb pressure to belt between
pulleys.
3. If the belt tension is not as specified, loosen the lock
nut and turn the adjust nut to get the belt tension
within the specified range.
4. Tighten up the lock nut.
5. Replace fan belt if it is damaged.
A If belt is loosen or damaged and the fan is damaged,
it could result in overheating or insufficient charging.
Adjust correctly or replace the belt.
(1) Fan belt
(2) Bolt and adjust nut
(3) Lock nut
(A) 12 to 14 mm (0.47 to 0.55 in.)
(under load of 98 N (22.1 lbs.))
37
TRANSPORTING / STORAGE
B Transporting
B Storage
CAUTION
To avoid personal injury:
A Secure the generator to prevent
movement during operation.
A DO NOT stand near or under the
generator while it is suspended.
A The generator is heavy. Utilize
suitable equipment to lift and
transport. Keep hands and feet
away from under the suspended
generator.
A When transporting the generator,
remove the
battery cable, close
the fuel cock lever, and keep the
generator level to prevent fuel
spillage.
A Use hangers and wire ropes which
are strong enough to withstand the
weight of the machine.
1. When transporting the generator, use only suitable
transporting equipment, such as crane, fork lift or
etc.
2. The generator is equipped with the 2 inlets in the
machine bed for forklift forks. Transportability is
increased by 2 ways; special forklift openings and 1point lifting hook.
Use lifting equipment of sufficient capacity.
Model
Approx. gross wt. kg (lbs.)
GL6000, GL7000
[Engine model: Z482]
262 (577)
GL9000, GL11000
[Engine model: D722]
318 (700)
CAUTION
To avoid personal injury:
A DO NOT clean the machine with
engine running.
A To avoid the danger of exhaust fume
poisoning, do not operate the
engine in a closed building without
proper ventilation.
A When storing the generator just
after running, let the engine cool off.
Before storing the generator for more than a few
months, remove any dirt on the machine, and:
1. Remove dirty engine coolant, fill with new coolant
and run the engine for about 5 minutes.
When coolant is added, coolant level drops the first
time the engine is started, stop the engine and add
more coolant.
2. Remove dirty engine oil, fill with new oil and run the
engine for about 5 minutes to let the oil penetrate to
all the parts.
3. Check all the bolts and nuts, and tighten if
necessary.
4. Remove the battery from the generator, adjust the
electrolyte level, and recharge it. Store the battery in
a dry and dark place.
5. When the engine is not used for a long period of
time, run it for about 5 minutes under no load every
2 to 3 months to keep it free from rust. If the engine
is stored without any running, moisture in the air may
condense into dew over the sliding parts of the
engine, resulting in rust.
6. If you forget to run the engine for longer than 5 to 6
months, apply enough engine oil to the valve guide
and valve stem seal and make sure the valves work
smoothly before starting the engine.
7. Store the generator in a flat place and remove the
key.
8. Do not store the generator in a place where
flammable materials such as dry grass or straw are
present.
9. When covering the generator for storage, let engine
and muffler cool off completely.
10.Operate the engine after checking and repairing
damaged wiring or pipes, and clearing flammable
materials carried by rodents, insects or birds.
ENGLISH
TRANSPORTING / STORAGE
ENGLISH
38
TROUBLESHOOTING
TROUBLESHOOTING
CAUTION
To avoid personal injury:
A Always perform any check at "STOP" condition except for special check in which
operation is required.
A Do not touch the charging section during operation.
A Keep your hands and body away from the rotating parts during operation.
If the machine does not function properly, use the following chart to identify and correct the cause.
B Generator
Trouble
After electrical equipment
connected, generator does not
operate.
Cause
Circuit breaker is off.
Countermeasure
• Turn breaker "ON".
Contact of output terminal and socket is • Reinstall.
bad.
Malfunction of electrical equipment
• Request repair.
Not generating
Bad contact of brush
• Check, cleaning and maintenance of
contact face and contact force of brush
and slip ring.
( Danger: All works should be
performed when stopped)
Circuit breaker can not be operated.
Overload
• Reduce load.
Short circuit of load circuitry connected to • Repair load.
output section
Output cannot be obtained.
• Rotation goes slow.
• Voltage drops.
• Breaker turns off.
Initial current is too much.
(e.g. motor load)
• Reduce load.
Overload
• Reduce load.
Engine indicates loaded condition.
Short circuit of generator wiring
• Stop immediately.
Request for repair.
B Easy checker
Trouble
When the key is turned, the lamp
doesn't light on.
Cause
• Replace
Component or wiring defect of charging
circuit
• Check, repair
The water temperature lamp lights on Engine overheating.
when operating.
• See "Precaution overheating" in
"Radiator" section. (See page 97)
Water temperature sensor faulty.
• Replace the water temperature sensor.
Water temperature sensor wiring faulty.
• Repair the wiring.
The oil pressure lamp lights on when Insufficient engine oil.
operating.
Lubricating system in trouble.
The battery charge lamp lights on
when operating.
Countermeasure
Bulb is defective.
• Add engine oil.
• Check the system.
Oil pressure sensor faulty.
• Replace the sensor.
Oil pressure sensor wiring faulty.
• Repair the wiring.
Poor contact of sub winding.
• Connect tightly.
Sub winding problem.
• Check the sub winding.
39
B Engine
Trouble
Not started.
Cause
Not turned or slow Battery trouble.
turning.
Insufficient battery charge.
Countermeasure
• Replacement of battery.
• Recharge battery.
Slow turning at cold circumstance due to • Replace engine oil to D5W40 or
high viscosity of engine oil.
D10W30 for cold.
Fuse blown out (Slow blow fuse)
• Replace fuse.
Normal turning,
but not started.
Terminal cover open.
• Close terminal cover. Fix terminal cover
with panel lock bolts.
Fuel shortage.
• Refuel.
Fuel does not flow.
• Check fuel filter. If filter is dirty, replace.
• Check fuel tank. Remove the settled
impurities or moisture.
Air and water are contained in fuel supply • Check pipe and fastening clamp. If any
line.
damage exists, replace or repair.
• Relieve air.
• Remove water inside of fuel tank and
filter.
Injection pipe is loosened.
• Re-tighten.
Engine starts but stops immediately.
Engine oil shortage.
• Add engine oil to upper limit of gauge.
Rotation is irregular.
Fuel shortage.
• Refuel.
Fuel does not flow.
• Check fuel filter. If filter is dirty, replace.
• Check fuel tank. Remove the settled
impurities or moisture.
Air and water are contained in the fuel
supply line.
• Check pipe and fastening clamp. If any
damage exists, replace it, or repair.
• Relieve air.
• Remove water inside of fuel tank and
filter.
Engine suddenly stops.
Insufficient output.
When loaded, rotation goes slow.
Coolant leaks out.
Exhaust gas is bad.
Abnormal sound
Large vibration.
Injection pipe is loosened.
• Re-tighten.
Fuel shortage.
• Refuel.
Insufficient engine oil.
• Fill oil.
Water temperature is too high.
• Insufficient cooling water.
• Loosened water pump belt.
• Blockage of radiator.
• Fill cooling water.
• Adjust belt tension.
• Clean.
Terminal cover open.
• Close terminal cover. Fix terminal cover
with panel lock bolts.
Choke of air cleaner element.
• Replace air cleaner element.
Choke of fuel system.
• Check.
Choke of fuel filter.
• Element cleaning.
Oil deterioration.
• Replace engine oil.
Overload.
• Refer to generator.
Insufficient cooling water.
• Fill cooling water.
Loosened fan belt.
• Adjust belt tension.
Blockage of radiator.
• Clean.
Choke of air cleaner element.
• Clean air cleaner element.
Engine oil is over filled.
• Remove oil to upper limit of gauge.
Fuel quality is bad.
• Replace fuel with good quality fuel.
Crack of vibration-proof rubber.
• Replace.
Others.
• Check, repair.
If you have any questions, contact your KUBOTA dealer.
ENGLISH
TROUBLESHOOTING
ENGLISH
40
AUTOMATIC START/STOP UNIT (A S/S UNIT)
AUTOMATIC START/STOP UNIT (A S/S UNIT)
To connect the machine to the A S/S UNIT the generator is equipped with the ectt on the left side panel of the
control panel.
To connect the exterior apparatus with the machine,
perform the following instructions;
1. Remove the terminal taps cover.
2. Connect the unit to the ectt with the wiring
harnesses, following the operator’s manual of the A
S/S unit.
3. To assemble the ttc, set the ttc.
For nomenclature and connection of terminal taps are
referred to the "WIRING DIAGRAMS" section. (See
page 41-50)
(1) Plate
(2) Exterior connection terminal taps (ectt)
(3) Terminal taps cover (ttc)
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