Kubota GL6000-STD User manual

ÙÔêðððóÍÌÜ i ÙÔêðððóßËÍ
ÙÔéðððóËÍß i ÙÔéðððóËÍßóÌÓ i ÙÔéðððóÍÌÜ
ÙÔçðððóÍÌÜ i ÙÔçðððóßËÍ
ÙÔïïðððóËÍß i ÙÔïïðððóËÍßóÌÓ i ÙÔïïðððóÍÌÜ
G3102-8916-3

ÛÒÙÔ×ÍØ
̱ °®»ª»²¬ »´»½¬®½¿´ ¸±½µ ¬¸» º±´´±©²¹ ²¬®«½¬±² ³«¬ ¾» º±´´±©»¼ò
Þ»º±®» ¬¸» ¹»²»®¿¬±® ½¿² ¾» ½±²²»½¬»¼ ¬± ¿ ¾«´¼²¹ »´»½¬®½¿´
§¬»³ô ¿ ´½»²»¼ »´»½¬®½¿² ³«¬ ²¬¿´´ ¿² ±´¿¬±² ø¬®¿²º»®÷ ©¬½¸
² ¬¸» ¾«´¼²¹ ³¿² º«» ¾±¨ò ̸» ©¬½¸  ¬¸» ½±²²»½¬±² °±²¬ º±®
¹»²»®¿¬±® °±©»® ¿²¼ ¿´´±© »´»½¬±² ±º ¹»²»®¿¬±® ±® ³¿² ´²» °±©»®
¬± ¬¸» ¾«´¼²¹ò
̸ ©´´ °®»ª»²¬ ¬¸» ¹»²»®¿¬±® º®±³ ½¸¿®¹²¹ ¬¸» ³¿² °±©»® ´²»
ø¾¿½µº»»¼²¹÷ ©¸»² ¬¸» ³¿² °±©»® «°°´§ ¸¿ º¿´»¼ ±® ¸¿ ¾»»²
¬«®²»¼ ±ºº º±® ´²» ®»°¿®ò Þ¿½µº»»¼²¹ ½¿² »´»½¬®±½«¬» ±® ²¶«®» ´²»
³¿²¬»²¿²½» °»®±²²»´ò ß´±ô ¹»²»®¿¬±® ¿²¼ ¾«´¼²¹ »´»½¬®½¿´ §¬»³
¼¿³¿¹» ½¿² ±½½«® ©¸»² ²±®³¿´ ±°»®¿¬²¹ °±©»® ®»¬«®² º «²¬  «»¼
©¬¸±«¬ ¿² ±´¿¬±² ©¬½¸ò
í
ÉßÎÒ×ÒÙ
×ÓÐÑÎÌßÒÌ
̸» »²¹²» ² ¬¸ ³¿½¸²»  ²±¬ »¯«°°»¼ ¾§ ¬¸» ³¿²«º¿½¬«®» ©¬¸
¿ ¬¿²¼¿®¼ °¿®µ ¿®®»¬»®ò
׬  ¿ ª±´¿¬±² ±º Ý¿´º±®²¿ Ы¾´½ λ±«®½» ݱ¼» Í»½¬±² ìììî ¬±
«» ±® ±°»®¿¬» ¬¸ »²¹²» ±² ±® ²»¿® ¿²§ º±®»¬ó½±ª»®»¼ô ¾®«¸ó
½±ª»®»¼ ´¿²¼ô ±® ¹®¿ó ½±ª»®»¼ ´¿²¼ «²´» ¬¸» »¨¸¿«¬ §¬»³ 
»¯«°°»¼ ©¬¸ ¿ ©±®µ²¹ °¿®µ ¿®®»¬»® ³»»¬²¹ ¬¿¬» ´¿©ò Ѭ¸»®
¬¿¬» ±® º»¼»®¿´ ¿®»¿ ³¿§ ¸¿ª» ³´¿® ´¿©ò
Ý¿´º±®²¿ Ю±°±¬±² êë
Û²¹²» »¨¸¿«¬ô ±³» ±º ¬ ½±²¬¬«»²¬ô
½»®¬¿² ª»¸½´» ½±³°±²»²¬ ¿²¼ º´«¼ô
½±²¬¿² ±® »³¬ ½¸»³½¿´ µ²±©² ¬± ¬¸»
ͬ¿¬» ±º Ý¿´º±®²¿ ¬± ½¿«» ½¿²½»® ¿²¼ ¾®¬¸
¼»º»½¬ ±® ±¬¸»® ®»°®±¼«½¬ª» ¸¿®³ò
ÉßÎÒ×ÒÙ

ÚÑÎÛÉÑÎÜ
íÜßÒÙÛÎ æ
íÉßÎÒ×ÒÙ æ
íÝßËÌ×ÑÒ æ
×ÓÐÑÎÌßÒÌ æ
ÒÑÌÛ æ
í
ÍßÚÛÌÇ Ú×ÎÍÌ
DZ« ¿®» ²±© ¬¸» °®±«¼ ±©²»® ±º ¿ ÕËÞÑÌß Ü»»´ Û²¹²» Ù»²»®¿¬±®ò ̸
¹»²»®¿¬±®  ¿ °®±¼«½¬ ±º ÕËÞÑÌß ¯«¿´¬§ »²¹²»»®²¹ ¿²¼ ³¿²«º¿½¬«®²¹ò ׬
 ³¿¼» ±º º²» ³¿¬»®¿´ ¿²¼ «²¼»® ¿ ®¹¼ ¯«¿´¬§ ½±²¬®±´ §¬»³ ©¬¸
½±®®»½¬ ³¿²¬»²¿²½»ò ׬ ©´´ ¹ª» §±« ´±²¹ô ¿¬º¿½¬±®§ »®ª½»ò ̱ ±¾¬¿² ¬¸»
¾»¬ «» ±º §±«® ¹»²»®¿¬±®ô °´»¿» ®»¿¼ ¬¸ ³¿²«¿´ ½¿®»º«´´§ò ׬ ©´´ ¸»´° §±«
¾»½±³» º¿³´¿® ©¬¸ ¬¸» ±°»®¿¬±² ±º ¬¸» ¹»²»®¿¬±® ¿²¼ ½±²¬¿² ³¿²§
¸»´°º«´ ¸²¬ ¿¾±«¬ ¹»²»®¿¬±® ³¿²¬»²¿²½»ò ׬  ÕËÞÑÌßù °±´½§ ¬± «¬´¦» ¿
¯«½µ´§ ¿ °±¾´» »ª»®§ ¿¼ª¿²½» ² ±«® ®»»¿®½¸ò ̸» ³³»¼¿¬» «» ±º
²»© ¬»½¸²¯«» ² ¬¸» ³¿²«º¿½¬«®» ±º °®±¼«½¬ ³¿§ ½¿«» ±³» ³¿´´ °¿®¬
±º ¬¸ ³¿²«¿´ ¬± ¾» ±«¬¼¿¬»¼ò ÕËÞÑÌß ¼¬®¾«¬±® ¿²¼ ¼»¿´»® ©´´ ¸¿ª» ¬¸»
³±¬ «°ó¬±ó¼¿¬» ²º±®³¿¬±²ò д»¿» ¼± ²±¬ ¸»¬¿¬» ¬± ½±²«´¬ ©¬¸ ¬¸»³ò
̸ §³¾±´ô ¬¸» ²¼«¬®§ù þÍ¿º»¬§ ß´»®¬ ͧ³¾±´þô  «»¼ ¬¸®±«¹¸±«¬ ¬¸
³¿²«¿´ ¿²¼ ±² ´¿¾»´ ±² ¬¸» ³¿½¸²» ¬»´º ¬± ©¿®² ±º ¬¸» °±¾´¬§ ±º
°»®±²¿´ ²¶«®§ò λ¿¼ ¬¸»» ²¬®«½¬±² ½¿®»º«´´§ò ׬  »»²¬¿´ ¬¸¿¬ §±«
®»¿¼ ¬¸» ²¬®«½¬±² ¿²¼ ¿º»¬§ ®»¹«´¿¬±² ¾»º±®» §±« ¿¬¬»³°¬ ¬± ¿»³¾´»
±® «» ¬¸ «²¬ò
ײ¼½¿¬» ¿² ³³²»²¬´§ ¸¿¦¿®¼±« ¬«¿¬±² ©¸½¸ô º
²±¬ ¿ª±¼»¼ô ©´´ ®»«´¬ ² ¼»¿¬¸ ±® »®±« ²¶«®§ò
ײ¼½¿¬» ¿ °±¬»²¬¿´´§ ¸¿¦¿®¼±« ¬«¿¬±² ©¸½¸ô º ²±¬
¿ª±¼»¼ô ½±«´¼ ®»«´¬ ² ¼»¿¬¸ ±® »®±« ²¶«®§ò
ײ¼½¿¬» ¿ °±¬»²¬¿´´§ ¸¿¦¿®¼±« ¬«¿¬±² ©¸½¸ô º ²±¬
¿ª±¼»¼ô ³¿§ ®»«´¬ ² ³²±® ±® ³±¼»®¿¬» ²¶«®§ò
ײ¼½¿¬» ¬¸¿¬ »¯«°³»²¬ ±® °®±°»®¬§ ¼¿³¿¹» ½±«´¼
®»«´¬ º ²¬®«½¬±² ¿®» ²±¬ º±´´±©»¼ò
Ùª» ¸»´°º«´ ²º±®³¿¬±²ò

CONTENTS
ENGLISH
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

1SAFETY PRECAUTIONS
ENGLISH
SAFETY PRECAUTIONS
ATo operate the machine safely, be sure to follow the instructions below.
DANGER
To avoid personal injury:
AHazard of being caught up in the machine: Do
not touch any rotating parts.
ADo 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:
AExhaust gas poisoning hazard: Do not use the
machine in any poorly-ventilated place such as
indoors and tunnels.
AExhaust gas poisoning and fire hazard: Do not
direct the exhaust to people and buildings.
AElectric shock hazard: Do not touch the machine
with wet hands.
AElectric shock hazard: Do not touch the
terminals and sockets while the machine is
running.
AElectric shock and injury hazard: Do not check
and service the machine while it is running.
AElectric shock and injury hazard: Do not tamper
with the machine.
AFire hazard: Flames prohibited. Keep the
machine more than 1 m(3 feet) away from
flammable materials.
AElectric shock hazard: Do not use the machine in
the rain.

2 SAFETY PRECAUTIONS
ENGLISH
CAUTION
To avoid personal injury:
AElectric shock and fire hazard: Do not connect
the machine to any indoor (commercial) power
outlet.
AElectric shock and injury hazard: Do not allow
children to run the machine.
AElectric shock and injury hazard: Turn off the
circuit breaker before starting the machine.
AInjury hazard: Do not touch the muffler.
AInjury hazard: Do not run the machine tilted.
AInjury hazard: Do not move the machine while it
is running.
AFire hazard: Stop the engine before adding fuel.
AFire hazard: Do not enclose the machine, nor
cover it with a box or the like.
AFire hazard: Pay attention to the type and
amount of fuel.
ADo not get the warning label dirty or peeled off.
ABe sure to hand over the operation manual to
any other operator.
AElectric shock hazard: Ground the machine
using the ground terminal on the control panel.

3SAFETY PRECAUTIONS
ENGLISH
CAUTION
To avoid personal injury:
AAnti-freeze contains poison. Wear rubber gloves
to avoid personal injury. In case of contact with
skin, wash it off immediately.
ADO NOT mix different types of Anti-freeze. The
mixture can produce chemical reaction causing
harmful substances. Use approved Anti-freeze.
ABe 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.
AWhen draining fluids from the engine, place
some container underneath the engine body.
ADO NOT pour waste onto the grounds, down a
drain, or into any water source.

4 SAFETY PRECAUTIONS
ENGLISH
CAUTION
To avoid personal injury:
AWhen 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.
ADetach the battery from the engine before
conducting service. Put a "DO NOT OPERATE!"
tag in the key switch to avoid accidental starting.
ATo avoid sparks from an accidental short circuit
always disconnect the battery's ground cable (-)
first and connect it last.
ABe sure to stop the engine and remove the key
when conducting daily and periodic
maintenance, servicing and cleaning.
ACheck or conduct maintenance after the engine,
coolant, muffler, or muffler cover have been
cooled off completely.
AAlways 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.
AUse 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.
AReplace 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.
AWhen servicing is performed together by two or
more persons, take care to perform all work
safely.
AKeep first aid kit and fire extinguisher handy at
all times.

5SAFETY PRECAUTIONS
ENGLISH
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 avail-
able 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)
(5) Part No. 18901-5090-2
(6) Part No. G3907-8824-0

6 SAFETY PRECAUTIONS
ENGLISH
(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.)

7SAFETY PRECAUTIONS
ENGLISH
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.

1SERVICING OF GENERATOR
ENGLISH
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 Serial No.
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

2 SPECIFICATION
ENGLISH
SPECIFICATION
GENERATOR
Model Unit GL6000 GL7000
STD AUS USA USA-TM STD
Design 
Salient-pole, revolving-field AC generator (AVR system with separate and self-excitation brush)
Frequency Hz 50 60
Rated Output (COP) 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 1-2 1-4
Power Factor % 100
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
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.) 0.479 (29.2)
Engine speed rpm 3000 3600
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)
SET
Fuel  Diesel fuel No. 2 (ASTM D975)
Fuel consumption (at full load) L (U.S.gal.)/h 2.4 (0.63) 2.7 (0.71)
Fuel tank capacity
L (U.S.gal.) 28 (7.4)
Continuous Operating Hours hrs 12 10
Battery (V × Ah/5Hr)  38B20R (12V × 28Ah)
Starting System  Electric
L × W × H mm (in.) 1066 × 618 × 698 (42.0 × 24.3 × 27.5)
Approx Net Wt. kg (lbs.) 235 (518)
Output Terminal   
Receptacle 
Emergency Stop System  In case of abnormal : Oil pressure, water temperature

3SPECIFICATION
ENGLISH
GENERATOR
Model Unit GL9000 GL11000
STD AUS USA USA-TM STD
Design 
Salient-pole, revolving-field AC generator (AVR system with separate and self-excitation brush)
Frequency Hz 50 60
Rated Output (COP) 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 1-2 1-3
Power Factor % 100
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
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.) 0.719 (43.9)
Engine speed rpm 3000 3600
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)
SET
Fuel  Diesel fuel No. 2 (ASTM D975)
Fuel consumption (at full load) L (U.S.gal.)/h 3.3 (0.87) 4.1 (1.08)
Fuel tank capacity
L (U.S.gal.) 28 (7.4)
Continuous Operating Hours hrs 8.5 7.0
Battery (V × Ah/5Hr)  55B24R (12V × 36Ah)
Starting System  Electric
L × W × H mm (in.) 1281 × 618 × 698 (50.4 × 24.3 × 27.5)
Approx Net Wt. kg (lbs.) 295 (650)
Output Terminal   
Receptacle 
Emergency Stop System  In case of abnormal : Oil pressure, water temperature

4 NOMENCLATURE
ENGLISH
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

7NOMENCLATURE
ENGLISH
C1 Phase Type (220V Type)
[GL9000-STD]
[GL6000-STD]
AUS Model
C1 Phase Type (240V Type)
[GL9000-AUS]
[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
(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) Unplug all appliances from the GFCI receptacle.
(2) Start the engine.
(3) At the circuit breaker turn power ON to the circuit.
(4) 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.
BWhen 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.
5. After disassembling and assembling the generator,
check the circuit of GFCI with the RECEPTACLE
CIRCUIT TESTER and test as above TEST
PROCEDURE.
BEasy 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.
(1) "TEST" button
(2) "RESET" button
(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

9GROUND FAULT CIRCUIT INTERRUPTER (GFCI) RECEPTACLE
ENGLISH
BControl 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

10 PREPARATION TO SUPPLY THE ELECTRIC POWER
ENGLISH
PREPARATION TO SUPPLY THE ELECTRIC POWER
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:
APPLICATION RANGE
You can operate the GL-series generator in the
following range.
AKeep an inverter load below 50% of the generator
capacity.
AMake 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.
ABefore turning on the lamps again, wait for 10
minutes or so until the lamps cool down enough.
AThe 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 grounding
(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
2. Recommended capacity of electrical
devices
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

11PREPARATION TO SUPPLY THE ELECTRIC POWER
ENGLISH
AConnecting 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.
AConnecting 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.
APower 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.
AOrdinarily, a motor is rated in kW. This does not refer
to motor output.
Motor input (kVA)
AIf 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.
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
=Motor output (kW)
Motor efficiency × power factor