Kubota GL14000-USA User manual

File №. DGO-442_GL14000-USA
SERVICE MANUAL
GL14000 -USA

WARNING
This equipment is designed and built with safety in mind. However, your overall safety can be
increased by fully understanding and following the content in this manual.
Read this manual and familiarize yourself with its contents for your safety.
This equipment should only be operated and maintained by trained and qualified personnel.
This equipment is designed for generating a power source for electric tools, home appliances and
lights.
Do not install, operate or service this equipment without reading this manual and clearly
understanding the information.
This service manual is edited for authorized personnel to perform repair, maintenance and
trouble-shooting of diesel engine generators, designated as GL14000-USA
Shindaiwa products require necessary maintenance and adjustment to ensure product
longevity, safety and desired performance. Fully understand this service manual before
operating or performing service.
The information contained in this service manual describes equipment available at the
time of publication. hile every attempt has been made to provide you the very latest
information about your product, there may be some differences between your equipment
and the equipment described in this manual. e reserve the right to make changes to
equipments without prior notice, and without obligation to make alterations to equipment
previously manufactured.
For service of the engine, refer to orkshop (Service) Manual provided by the engine
manufacturer described below.
MANUFACTURER MODEL
REMARKS
KUBOTA
D902-E4B Tier 4

Table of Contents
1. Attention Statements ··············································································· 1
2. General Safety Instructions ····································································
3. Specifications ···························································································· 4
4. General ········································································································ 5
4.1 Dimension ························································································ 5
5. General Parts Description ······························································ 7
5.1 Serial Number ···················································································· 7
5. Main Components ··············································································· 8
6. Ser vice Data ····························································································· 11
6.1 Technical Specification ········································································ 11
6. Generator ························································································ 1
(1) Exciting Amperage ············································································ 13
( ) Resistance Value ············································································ 13
(3) Armature (Main Stator) #1 ································································· 14
(4) Exciter Winding (Main Stator) ····························································· 15
(5) Exciter Stator J (Brown) – K (Red) ······················································· 16
(6) Rotor ··························································································· 17
(7) Inspect Diode ················································································· 18
(8) Inspect the Transformer ···································································· 19
(9) Inspect the Volt meter ······································································ 19
(10) Inspect the Breaker ········································································· 0
(11) Inspect the Voltage regulator ····························································· 0
7. ightening orque ···················································································
7.1 Specific Torque ····························································································
7. General Torque ···························································································· 3
8. Periodical Check for Engine ·································································· 4
9. rouble Shooting ····················································································· 5
10. Wiring Diagram ························································································ 7

1
1. Attention Statements
・Only technicians with enough knowledge and experience should perform maintenance
and operational checks after maintenance.
・Before maintenance, always read this service manual as well as the owner’s manual
and be familia with the contents thoroughly before starting the service and
maintenance of the equipment. Completely understand the equipment, safety and
caution notifications.
・Throughout this manual are special attention statements.
A statement preceded by the triangular attention symbol and the word “ ARNING”
contains information that should be acted upon to prevent serious bodily injury.
A statement preceded by the triangular attention symbol and the
word “CAUTION” contains information that should be acted upon to
prevent mechanical damage.
WARNING
CAU ION

2
2. General Safety Instructions
ELECTRIC SHOCK
NEVER touch the output terminals
during operation
NEVER touch the output terminal during
operation even though the breaker on the
load is being set at “OFF” position.
ALWAYS stop engine and make sure it has
fully stopped before you connect the loads
to the output terminals.
Suffocation by exhaust gas
NEVER run the engine indoors! Make
sure there is a ways good venti ation.
Fumes from engine exhaust cause
serious injury.
ALWAYS operate the equipment in a well
ventilated area.
hen the equipment is used in a tunnel, hall
or any other indoor area, ventilation
equipment must be used to prevent serious
injury caused by suffocation.
NEVER direct the exhaust fumes to
houses nearby. Consider the wind flow
direction.
Exhaust gas contains many harmful
elements that can cause effects to humans.
Prevent suffocation when the equipment is
used in poorly ventilated area such as inside
of the building.
Entangled Injuries under
By Moving Componen t
NEVER reach or touch moving
components during operation!
ALWAYS stop the engine during inspection
to prevent serious bodily injury by entangled
accident under moving component.
Electric shock/Injuries/Burns
Never inspect equipment during
use .
Never service or inspect when equipment
while it is being operated.
It may cause electric shock, injuries or
burns.
WARNING-Use good judgment
NEVER run the engine when transporting
the equipment.
ALWAYS stop the equipment immediately if
it suddenly begins to vibrate or an abnormal
noise is heard. Inspect for broken, missing
or improperly installed parts.
ALWAYS keep the equipment as clean as
practical. Keep it free of loose vegetation,
mud, etc.
DO NOT make unauthorized
modifications or alterations to this equipment
or any of its components. KUBOTA ENGINE
AMERICA must authorize alterations and
modifications in writing. Unauthorized
modifications or alterations may alter the
equipment operation and could jeopardize
personal safety during operation.
WARNING

3
Work Safe y
Generators operate at very high speeds and
can do serious damage or injury if they are
misused or abused. Never allow a person
without training or instruction to operate or
service this equipment!
Attention to CAUTION LABEL！
Caution labels are placed on this equipment
and require special attention for operation.
Make sure to locate the labels and
understand the content of the caution.
・Check that caution labels are legible.
Always keep the labels clean or replace
them when worn or damaged
・Clean the labels by cloth, water or
detergent and never use organic solvent
or gasoline which may cause label to peel
off.
・Make sure to replace the labels when
damaged or illegible.
Before replacing the label(s), make sure to
place the new label(s) in the same position.
STOP the equipment immediately when
abnormal circumstances are noticed
STOP the equipment immediately whenever
abnormal circumstances are noticed such
as unusual noise, smell, vibration and etc.
It may lead to a serious accident or fatal
damage of the equipment or properties.
Inflammables！
Keep the equipment far away from fire such
as cigarettes when filling fuel, oil or battery
fluid.
NEVER operate or service the equipment
nearby fire as the equipment may catch fire.
No Modification！
NEVER modify the equipment without
manufacturer’s advanced approval. .
It may lead to serious safety issues and
damage the equipment.
Inspect the equipment before engine
start for operation and periodical inspection
without fail！
Make sure to inspect before starting engine
and periodically inspect for safety and longer
life of the equipment.
CAU ION

4
3. Specifications
Model Unit GL14000
Alternator
Generator Type - Revolving Field Brushless
Armature Connection - ZigZag-W
Rated Frequency Hz 60
Rated Output(Prime) kVA 1
kW 1
Standby Output kVA 14
kW 14
Rated Voltage V 1 0/ 40
Rated Current 1 0V A 50×
40V A 50
Power Factor - 1.0
Insulation class - F
Excitation - Self-Excitation (brushless)
No. of Poles -
Engine
Type - Vertical Water-Cooled 4-Cycle Diesel
Model(Manufacturer) - D90 (KUBOTA)
No. of Cylinders
(bore × stroke) (in./mm) 3(2.83x3.78/7 x73.6)
Continuous Rated
Output hp
20.7
Rated Speed rpm 3,600
Displacement
c
u.in.
/liters
55
/0.898
Combustion System - Indirect Injection
Cooling Method - Water cooled
Starting Method - Electric
Fuel - No. -D,S15 EPA regulation
Lubricating Oil - API service-type CD class or better
Fuel Tank Capacity
gal.
/liters
9.6
/36.4
Lubricant Volume
gal.
/liters
0.95
/3.6
Coolant Volume
gal.
/liters
1.1
/4.1(including sub-tank
0.16
/0.6)
Starting Motor Capacity
V-kW 1 -1.
Charging Alternator Capacity
V-W 1 -150
Battery Capacity V-Ah 1 -36
Unit
Length
in.
/mm
52
/1,310
Width
in.
/mm
25
/640
Height
in.
/mm
35
/895
Dry Weight
lbs.
/kg
904
/410
Net Weight
lbs.
/kg
1,003
/455
*Specifications subject to change without notice.
**Generating application is 60Hz ONLY.

5
4. General
4.1 Dimension
*Unit below is shown by mm.

6

7
5. General Parts Description
5.1 Serial Number
Unit Serial Number
Engine Serial Number

8
5.2 Main Components

9
Fr nt Panel Inside
Printed Circuit Board (
Main
controller
)
Feature: Adjust voltage and control
engine rpm etc.
Auto Start Terminal
Transformer
Feature: etect engine rpm. and
voltage.
Refer to “inspect the transformer”
on page 19 for inspection.
Speed Control Motor
Feature: control engine
speed coupled by the
governor lever and speed
adjusting rod.
To Check
1. Remove the coupler
and rod.
2. Supply a C 12V
220mA from the battery
to the coupler, and the
motor would rotate one
direction.
3. Switch the positive (+)
and negative (-) wires
from the battery and
connect the wires to
the coupler in reverse
again. The motor shall
rotate other direction
Engine Stop Solenoid
Feature: supply or stop fuel.
Diode
Feature: Convert to AC to C.
Refer to “inspect the diode” on
page 18 for inspection.
Generator
Refer to “trouble shooting”
on page 25 for inspection.
Emergenc Rela

10
Output Terminal C ver Inside
Accessory
Terminal Rest
Feature: Relay terminal
block of the power output
from the alternator.
Circuit Breaker (1
-
Phase)
Feature: Protect electrical circuit
from damage caused by
overload or short-circuit.
Terminal Cover Switch
Feature: Shut off the breaker when
the terminal cover is opened during
the engine operation for safety
reasons.
Ground
-
Fault Circuit Interrupter (GFCI)
1-Phase Receptacle (20A)
Feature:
1. Supply AC output.
2. etect the electric leakage and shut off
the output.
1
-
Phase Receptacle (30A)
(120/240V)
Feature: Supply AC output.
Level Switch, spill
containment
Feature: detects the liquid volume
accumulated in the spill
containment.
Oil P
an
Feature: accumulate oil
used to lubricate the
engine accumulates.
Sta
ndard Access ry
① Owners Manual
② Starter Key – sets
③ Warranty Statement
④ Instruction Manual ofthe engine

11
. Service Data
ELECTRIC SHOCK
WARNING
Never touc t e output terminals during operation.
Never touch the output terminal during operation even if the breaker on the load being set is OFF.
Be sure to check and confirm the engine is stopped whenever touching terminals to connect
loads.
6 . 1 Tec nical Specification
Ite s Reference Value Note
Insulation Ar ature winding 1MΩ or ore DC500V
Megger Tester
Exciter field
Preheat ti e
Preheat ti e would be approx. 5 sec.
when coolant te p. read -15℃and
it would be 2 sec. when coolant te p.
read 20℃. Glow la p ON for 10 sec.
Auto atic
Preheat Syste
Max. rp at no load 3600 in
-1
Lubricant oil pressure 0.1~0.49MPa{1~5kgf/c ²}
Coolant te perature 70~100℃
Fra e te perature li it within 80℃
Sealed bearing te perature li it within 60℃
Speed regulation
Mo entary within 10%
Steady-state deviation
within 5%
Voltage regulation
Mo entary within 20%
Steady-state deviation within 1.0%
Frequency Rated: 60 Hz
Variable voltage 197~255V
Protective device Rated value
Low oil pressure Working pressure 0.098MPa{1.019±0.2kgf/c ²} Engine stop
High water temp.
Working te perature 115±2℃ Engine stop
Over speed
Working speed 4140 in
-1
Engine stop
Charge fault
Engine stop
Terminal cover [open]
Engine stop
Breaker shut-off

12
6 . 2 Generator
Stator
Rotor
Main Stator
Exciter Stator
Front Bracket
Rear Bracket
Main Rotor
Cooling Fan
Ball bearing

13
(1) Exciting Amperage
Amperage fluctuates based upon the winding temperature. Following is for reference
only .
Frequency/Rated Output Load Exciting Amperage
(Measured)
Single-Phase 60Hz: 1 kW
No load 1.1A
Full load
( power factor=1.0) 1.5A
( ) Resistance Value
Nominal resistance of the winding is tolerated within ± 10% at 20℃ of the ambient
temperature. The resistance must be measured by low resistance tester. It cannot be
measured by multi-purpose tester due to index error.
Measurement value (Ω）
Main Stator Exciter Stator Rotor
1 3 4 5
Armature Exciter
Winding J－K Exciter Field Armature
Between
U-W
A – B
B – C
C – D
- - -
0.14Ω 0. 9Ω 5.8Ω 8.60Ω 0.83Ω
(B) (W) (R) (G) (Y) (Br) (L) (Or) (Gr) (Vi)
Black White Red Green Yellow Brown Blue Orange Gray Violet

14
(3) Armature (Main Stator) #1
Measure the resistance among the U-W by the low resistance tester. Each shall be 0.14 .
U
W
U
W

15
(4) Exciter inding (Main Stator)
The resistance among A~B, B~C and C~D by the low resistance tester. Each shall be 0.29 .
C
B
A
D
C
B
A
D

16
(5) Exciter Stator J (Brown)－K (Red)
Measure resistance among the J~K by the resistance ohm tester. It shall be 5.8 .
K (R)
J (Br)
K (R)
J (Br)

17
(6) Rotor
There are two windings in the rotor. Measure the resistance between #1~#3 and #2~#4
Remove the varnish with sand paper and measure;
Exciter Winding : the resistance among the two points as shown in the photo above by
the low resistance tester. It shall be 8.6 .
Field Winding : the resistance among the two points as shown in the photo above by the
low resistance tester. It shall be 0.83 .
#
1
#
3
#
4
#2
Rotor
Rectifier