www.wackergroup.com
0160531en
1106
Generator
GP 2500A
OPERATOR’S MANUAL
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DANGER
CARBON MONOXIDE
Using a generator indoors CAN KILL YOU IN MINUTES.
Generator exhaust contains carbon monoxide (CO). This is a poison you cannot see or
smell. If you can smell the generator exhaust, you are breathing CO. But even if you cannot
smell the exhaust, you could be breathing CO.
•
NEVER use a generator inside homes, garages, crawlspaces, or other partly enclosed
areas. Deadly levels of carbon monoxide can build up in these areas. Using a fan or
opening windows and doors does NOT supply enough fresh air.
•
ONLY use a generator outside and far away from windows, doors, and vents. These
openings can pull in generator exhaust.
Even when you use a generator correctly, CO may leak into the home. ALWAYS use a
battery-powered or battery-backup CO alarm in the home.
If you start to feel sick, dizzy, or weak after the generator has been running, move to fresh
air RIGHT AWAY. See a doctor. You could have carbon monoxide poison.
GP 2500A
Table of Contents
1.
Foreword
2.
California Evaporative Emission Control Warranty Statement 4
3.
Safety Information
3.1
3.2
3.3
3.4
3.5
3.6
4.
6
Laws Pertaining to Spark Arresters ...................................................... 6
Operating Safety .................................................................................. 7
Operator Safety while using Internal Combustion Engines .................. 9
Service Safety .................................................................................... 10
Label Locations .................................................................................. 11
Safety and Operating Labels .............................................................. 12
Technical Data
4.1
4.2
5.
3
15
Generator ........................................................................................... 15
Engine ................................................................................................ 16
Operation
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.8
5.9
5.10
5.11
5.12
5.13
17
Determining Power Requirements ..................................................... 17
Outdoor Installation ............................................................................ 18
Indoor Installation ............................................................................... 18
Generator Derating ............................................................................. 19
Grounding the Generator ................................................................... 20
Operating Heavy Loads ...................................................................... 20
Use of Extension Cords ...................................................................... 21
Control Panel—GP 2500A ................................................................. 22
Ground Fault Interrupt (GFI) ............................................................... 23
Circuit Breaker .................................................................................... 23
Before Starting ................................................................................... 24
To Start ............................................................................................... 25
To Stop ............................................................................................... 25
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1
Table of Contents
6.
GP 2500A
Maintenance
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
6.9
6.10
6.11
6.12
6.13
26
Engine Maintenance ............................................................................26
Periodic Maintenance Schedule ..........................................................26
Engine Oil ............................................................................................27
Servicing Air Cleaner ...........................................................................28
Spark Plug ...........................................................................................29
Cleaning the Sediment Cup ................................................................30
Carburetor Adjustment ........................................................................31
Adjusting Engine Speed ......................................................................32
Storage ................................................................................................32
Transport .............................................................................................33
Troubleshooting ...................................................................................33
Wire Colors ..........................................................................................34
Wiring Schematic ................................................................................34
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2
CALIFORNIA
Proposition 65 Warning:
WARNING
1.
Engine exhaust, some of its constituents, and certain vehicle
components, contain or emit chemicals known to the State of
California to cause cancer and birth defects or other reproductive
harm.
Foreword
This manual provides information and procedures to safely operate
and maintain this Wacker model. For your own safety and protection
from injury, carefully read, understand and observe the safety
instructions described in this manual.
Keep this manual or a copy of it with the machine. If you lose this
manual or need an additional copy, please contact Wacker
Corporation. This machine is built with user safety in mind; however,
it can present hazards if improperly operated and serviced. Follow
operating instructions carefully! If you have questions about operating
or servicing this equipment, please contact Wacker Corporation.
The information contained in this manual was based on machines in
production at the time of publication. Wacker Corporation reserves the
right to change any portion of this information without notice.
All rights, especially copying and distribution rights, are reserved.
Copyright 2006 by Wacker Corporation.
No part of this publication may be reproduced in any form or by any
means, electronic or mechanical, including photocopying, without
express written permission from Wacker Corporation.
Any type of reproduction or distribution not authorized by Wacker
Corporation represents an infringement of valid copyrights and will be
prosecuted. We expressly reserve the right to make technical
modifications, even without due notice, which aim at improving our
machines or their safety standards.
wc_tx000001gb.fm
3
California Evaporative Emission Control Warranty Statement
2.
California Evaporative Emission Control Warranty Statement
YOUR WARRANTY RIGHTS AND OBLIGATIONS
The California Air Resources Board and Wacker Corporation, Inc. are
pleased to explain the evaporative emission control system (EECS)
warranty on your model year 2006 and later portable generator. In
California, new portable generators must be designed, built and
equipped to meet the State’s stringent anti-smog standards. Wacker
Corporation must warrant the EECS on your portable generator for the
period of time listed below provided there has been no abuse, neglect
or improper maintenance of your portable generator.
Your EECS for the 2006 model year on your portable generator
includes the fuel line, fuel line clamps and fuel line fittings.
Where a warrantable condition exists, Wacker Corporation will repair
your portable generator at no cost to you including diagnosis, parts and
labor.
MANUFACTURER’S WARRANTY COVERAGE:
This EECS is warranted for two years from the initial date of purchase.
If any evaporative emission-related part on your equipment is
defective, the part will be repaired or replaced by Wacker Corporation
at no charge to you. The owner shall not be charged for diagnostic
labor that leads to determination that a warranted part is in fact
defective, provided that such diagnostic work is performed at a Wacker
Corporation’s authorized service center.
WARRANTY PERIOD:
Any warranted part that is not scheduled for replacement as required
maintenance, or which is scheduled only for regular inspection to the
effect of “repair or replace as necessary” shall be warranted for two
years. Any warranted part that is scheduled for replacement as
required maintenance shall be warranted for a time not less than the
remaining warranty period.
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4
California Evaporative Emission Control Warranty Statement
OWNER’S WARRANTY RESPONSIBILITIES:
As the portable generator owner, you are responsible for performance
of the required maintenance listed in your owner’s manual. Wacker
Corporation recommends that you retain all receipts covering
maintenance on your portable generator, but Wacker Corporation
cannot deny warranty solely for the lack of receipts.
As the portable generator owner, you should however be aware that
Wacker Corporation may deny you warranty coverage if your portable
generator or a part has failed due to abuse, neglect, or improper
maintenance or unapproved modifications.
You are responsible for presenting your portable generator to Wacker
Corporation’s authorized service center as soon as the problem exists.
The warranty repairs should be completed in a reasonable amount of
time, not to exceed 30 days. If you have a question regarding your
warranty coverage, you should contact your nearest authorized
Wacker service center or call 1-800-770-0957.
WHAT IS NOT COVERED:
All failures caused by abuse, neglect, or improper maintenance are not
covered. In addition, the use of add-on or modified parts will be
grounds for disallowing a warranty claim.
WARRANTED PARTS:
The repair or replacement of any warranted part otherwise eligible for
warranty coverage may be excluded from such warranty coverage if
Wacker Corporation demonstrates that the portable generator has
been abused, neglected, or improperly maintained, and that such
abuse, neglect, or improper maintenance was the direct cause of the
need for repair or replacement of the part. That notwithstanding, any
adjustment of a component that has a factory installed, and properly
operating, adjustment limiting device is still eligible for warranty
coverage. The following emission warranty parts list is covered:
(1)Fuel Line.
(2)Fuel Line Clamps.
(3)Fuel Line Fittings.
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5
Safety Information
3.
GP 2500A
Safety Information
This manual contains DANGER, WARNING, CAUTION, and NOTE
callouts which must be followed to reduce the possibility of personal
injury, damage to the equipment, or improper service.
This is the safety alert symbol. It is used to alert you to potential
personal injury hazards. Obey all safety messages that follow this
symbol to avoid possible injury or death.
DANGER indicates a hazardous situation which, if not avoided, will
result in death or serious injury.
DANGER
WARNING indicates a hazardous situation which, if not avoided, could
result in death or serious injury.
WARNING
CAUTION indicates a hazardous situation which, if not avoided, could
result in minor or moderate injury.
CAUTION
CAUTION: Used without the safety alert symbol, CAUTION indicates
a potentially hazardous situation which, if not avoided, may result in
property damage.
Note: Contains additional information important to a procedure.
3.1
Laws Pertaining to Spark Arresters
Notice: State Health Safety Codes and Public Resources Codes
specify that in certain locations spark arresters be used on internal
combustion engines that use hydrocarbon fuels. A spark arrester is a
device designed to prevent accidental discharge of sparks or flames
from the engine exhaust. Spark arresters are qualified and rated by
the United States Forest Service for this purpose.
In order to comply with local laws regarding spark arresters, consult
the engine distributor or the local Health and Safety Administrator.
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GP 2500A
3.2
Operating Safety
DANGER
WARNING
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Safety Information
BACKFEED FROM THE GENERATOR INTO THE PUBLIC POWER
DISTRIBUTION SYSTEM CAN CAUSE SERIOUS INJURY OR
DEATH TO UTILITY WORKERS!
Improper connection of generator to a building's electrical system can
allow electrical current from the generator to backfeed into utility lines.
This may result in electrocution of utility workers, fire, or explosion.
Connections to a building's electrical system must be made by a
qualified electrician and comply with all applicable laws and electrical
codes.
If connected to a building's electrical system the generator must meet
the power, voltage, and frequency requirements of the equipment in
the building. Differences in power, voltage, and frequency
requirements may exist and improper connection may lead to
equipment damage, fire, and personal injury or death.
Familiarity and proper training are required for the safe operation of
equipment. Equipment operated improperly or by untrained personnel
can be dangerous. Read the operating instructions contained in both
this manual and the engine manual and familiarize yourself with the
location and proper use of all controls. Inexperienced operators should
receive instruction from someone familiar with the equipment before
being allowed to operate the machine.
3.2.1
NEVER operate the generator when open containers of fuel, paint, or
other flammable liquids are near.
3.2.2
NEVER operate the generator, or tools attached to the generator, with
wet hands.
3.2.3
NEVER use worn electrical cords. Severe electrical shock and
equipment damage may result.
3.2.4
NEVER run the electrical cords under the generator, or over vibrating
or hot parts.
3.2.5
NEVER enclose or cover the generator when it is in use or when it is
hot.
3.2.6
NEVER overload the generator. The total amperage of the tools and
equipment attached to the generator must not exceed the load rating
of the generator.
3.2.7
NEVER operate the machine in snow, rain, or standing water.
3.2.8
NEVER allow untrained personnel to operate or service the generator.
The generator set should be set up by a trained electrician.
3.2.9
NEVER stand on the machine.
3.2.10
DO NOT stand under the machine while it is being hoisted or moved.
3.2.11
DO NOT attach equipment to the machine when it is suspended.
7
Safety Information
GP 2500A
3.2.12 ALWAYS store the equipment properly when it is not being used.
Equipment should be stored in a clean, dry location out of the reach of
children.
3.2.13 ALWAYS position and operate
noncombustible, level surface.
the
generator
on
a
firm,
3.2.14 ALWAYS transport the generator in an upright position.
3.2.15 ALWAYS keep the machine at least one meter (three feet) away from
structures, buildings, and other equipment during use.
3.2.16 ALWAYS keep the area immediately surrounding and underneath the
machine clean, neat, and free of debris and combustible materials.
Make sure that the area overhead is clear of debris that could fall onto
or into the machine or exhaust compartment.
3.2.17 ALWAYS remove all tools, cords, and other loose items from the
generator before starting it.
3.2.18 ALWAYS make certain the machine is well-grounded and securely
fastened to a good earthen ground per national and local regulations.
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GP 2500A
3.3
Operator Safety while using Internal Combustion Engines
DANGER
wc_si000149gb.fm
Safety Information
Internal combustion engines present special hazards during operation
and fueling. Read and follow the warning instructions in the engine
owner’s manual and the safety guidelines below. Failure to follow the
warnings and safety guidelines could result in severe injury or death.
3.3.1
DO NOT run the machine indoors or in an enclosed area such as a
deep trench unless adequate ventilation, through such items as
exhaust fans or hoses, is provided. Exhaust gas from the engine
contains poisonous carbon monoxide gas; exposure to carbon
monoxide can cause loss of consciousness and may lead to death.
3.3.2
DO NOT smoke while operating the machine.
3.3.3
DO NOT smoke when refueling the engine.
3.3.4
DO NOT refuel a hot or running engine.
3.3.5
DO NOT refuel the engine near an open flame.
3.3.6
DO NOT spill fuel when refueling the engine.
3.3.7
DO NOT run the engine near open flames.
3.3.8
DO NOT start the engine if fuel has spilled or a fuel odor is present.
Move the generator away from the spill and wipe the generator dry
before starting.
3.3.9
ALWAYS refill the fuel tank in a well-ventilated area.
3.3.10
ALWAYS replace the fuel tank cap after refueling.
3.3.11
ALWAYS check the fuel lines and the fuel tank for leaks and cracks
before starting the engine. Do not run the machine if fuel leaks are
present or the fuel lines are loose.
9
Safety Information
3.4
GP 2500A
Service Safety
WARNING
Poorly maintained equipment can become a safety hazard! In order
for the equipment to operate safely and properly over a long period of
time, periodic maintenance and occasional repairs are necessary. If
the generator is experiencing problems or is being serviced, attach a
“DO NOT START” sign to the control panel to notify other people of its
condition.
3.4.1
DO NOT use gasoline or other types of fuels or flammable solvents to
clean parts, especially in enclosed areas. Fumes from fuels and
solvents can become explosive.
3.4.2
DO NOT attempt to clean or service the machine while it is running.
3.4.3
DO NOT modify the equipment without the express written approval of
the manufacturer.
3.4.4
DO NOT allow water to accumulate around the base of the machine.
If water is present, move the machine and allow the machine to dry
before servicing.
3.4.5
DO NOT service the machine if your clothing or skin is wet.
3.4.6
DO NOT allow untrained personnel to service this equipment. Only
trained electrical technicians should be allowed to service the electrical
components of this equipment.
3.4.7
ALWAYS keep the machine clean and labels legible. Replace all
missing and hard-to-read labels. Labels provide important operating
instructions and warn of dangers and hazards.
3.4.8
ALWAYS replace the safety devices and guards after repairs and
maintenance.
3.4.9
ALWAYS let the engine cool before transporting or servicing it.
3.4.10 ALWAYS keep hands, feet, and loose clothing away from the moving
parts on the generator and engine.
3.4.11 ALWAYS turn the engine off before servicing the machine. If the
engine has electric start, disconnect the negative terminal on the
battery before servicing the machine.
3.4.12 ALWAYS keep the fuel lines in good condition and properly connected.
Leaking fuel and fumes are extremely explosive.
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10
GP 2500A
Label Locations
GND
wc_si000149gb.fm
11
88897
3.5
Safety Information
Safety Information
3.6
GP 2500A
Safety and Operating Labels
Wacker machines use international pictorial labels where needed.
These labels are described below:
Label
Meaning
DANGER!
No sparks, flames or burning objects near
machine.
Shut off the engine before refueling.
WARNING!
Hot surface!
DANGER!
Asphyxiation hazard. Read the operator’s
manual for instructions.
Use in a well-ventilated area. Do not use
indoors or near open windows. Fumes can
cause death.
WARNING!
To reduce the risk of electrical shock, read the
operator’s manual. Improper connection of the
generator to a building’s electrical system can
allow electrical current from the generator to
backfeed into utility lines. This may result in
electrocution of utility workers, fire or
explosion. Connections to a building’s
electrical system must be made by a qualified
electrician and comply with all applicable laws
and electrical codes.
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GP 2500A
Safety Information
Label
Meaning
GND
88897
Electrical ground
1
2
3
4
5
6
1
2
CAUTION!
Use only clean, filtered gasoline fuel.
Check the fuel level.
Open the fuel flow valve.
Close the choke.
Turn the engine switch to the ON position.
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13
Safety Information
Label
GP 2500A
Meaning
Pull the rewind starter.
Open the choke.
Turn the engine switch to "OFF".
Close the fuel flow valve.
Important Emissions Information
This equipment meets California EVP
emission regulations for small off-road
engines.
A nameplate listing the model number, item
number, revision number, and serial number is
attached to each unit. Please record the
information found on this plate so it will be
available should the nameplate become lost or
damaged. When ordering parts or requesting
service information, you will always be asked
to specify the model number, item number,
revision number, and serial number of the unit.
This machine may be covered by one or more
patents.
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14
GP 2500A
4.
Technical Data
Technical Data
4.1
Generator
Item No.
GP 2500A
0620009
Generator
Maximum Output
W
2500
Continuous Output
W
2250
Type
AC Voltages Available
Frequency
Single voltage, single phase,
Auto voltage regulator system
120
1ø
volts
phase
60
Hz
Power Factor
1.0
AC receptacles:
125V GFI duplex
125V duplex
amp
amp
20
20
Main Circuit Breaker
amp
20
LxWxH
mm (in.)
565 x 435 x 445 (22.3 x 17 x 17.5)
Weight (dry)
Kg (lbs.)
44.5 (98)
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15
Technical Data
4.2
GP 2500A
Engine
Item No.
GP 2500A
0620009
Engine
Engine Make
Honda
Engine Model
GX 160 K1VX
Rated Power
4.1 (5.5)
kW (Hp)
Spark Plug
Electrode Gap
BPR6ES / W20EPR-U
0.7–0.8 (0.028–0.031)
mm (in.)
Operating Speed (Max.)
rpm
3600
Air Cleaner
type
Dry type with oil-wetted foam pre-cleaner
Engine Lubrication
Engine Oil Capacity
Fuel
Fuel Tank Capacity
Fuel Consumption
Running Time - full load
wc_td000149gb.fm
oil grade
SAE 10W30 service class SF, SE, SD, or SC
0.6 (0.7)
l (qts.)
Regular unleaded gasoline
type
12 (3)
l (gal.)
1.7 (1.8)
l (qts.)/hr.
7
hrs.
16
GP 2500A
5.
Operation
Operation
5.1
Determining Power Requirements
This generator is designed to operate single-phase, 60 Hz appliances
running at 120 VAC. Check the nameplate or label provided on tools
and appliances to make sure their power requirements match the
power output of the generator.
Some appliances and tools require a surge of current when starting.
This means that the amount of power needed to initially start the
equipment is larger than the power required to keep it running. The
generator must be capable of supplying this “surge” current. Other
types of appliances require more power than is actually stated on their
nameplate.
The information in “Approximate Starting Power Requirements” is
offered only as a general guideline to help you in determining power
requirements for different types of equipment. Check with your nearest
Wacker Dealer, or contact the manufacturer or dealer of the tool or
appliance, with questions regarding its power requirements.
CAUTION: If a tool or appliance does not reach full speed within a few
seconds when switched on, turn it off immediately to avoid damage.
Approximate Starting Power Requirements
•
Incandescent lights and appliances such as irons and hot plates,
which use a resistive-type heating element, require the same wattage
to start and run as is stated on their nameplates.
•
Fluorescent and mercury lamps require 1.2–2 times their stated
wattage to start.
•
Electrical motors and many types of electrical tools often require a
large starting current. The amount of starting current depends on the
type of motor and its use.
•
Most electrical tools require 1.2–3 times their stated wattage for
starting.
•
Loads such as submersible pumps and air compressors require a
very large force to start. They need as much as 3–5 times the wattage
stated on the nameplate in order to start.
If the wattage is not given for a particular tool or appliance, it can be
calculated by multiplying its voltage and amperage requirements:
Single Phase: VOLTS x AMPS = WATTS
Three Phase: VOLTS x AMPS x 1.732 x 0.8 = WATTS
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17
Operation
5.2
GP 2500A
Outdoor Installation
Place the generator in an area where it will not be exposed to rain,
snow, or direct sunlight. Make sure it is positioned on firm, level
ground, so it will not slide or shift. Position the engine exhaust away
from areas where people may be present.
If operating the generator inside a tunnel or deep trench, make sure
there is adequate ventilation. Precautions similar to those required
when operating indoors may be necessary.
The surrounding area must be free from water and moisture. All
components must be protected from excessive moisture.
5.3
Indoor Installation
DANGER
wc_tx000447gb.fm
If the generator must be installed indoors, adequate ventilation or
exhaust hoses must be provided. When venting exhaust fumes, make
sure the exhaust piping is large enough to prevent excessive back
pressure to the engine. Back pressure reduces engine efficiency and
may cause the engine to overheat.
Exhaust gas from the engine contains poisonous carbon monoxide
gas; exposure to carbon monoxide can cause loss of consciousness
and may lead to death. Never run the generator indoors or in an
enclosed area unless adequate ventilation, through such items as
exhaust hoses or fans, is provided.
When installed indoors, steps to prevent fire and explosion such as
providing a good, earthen ground, removing all flammable materials
near the generator, and using only electrical cables in good condition,
must be observed. See Operating Safety.
18
GP 2500A
5.4
Operation
Generator Derating
All generators are subject to derating for altitude and temperature.
Internal combustion engines, unless modified, run less efficiently at
higher altitudes due to the reduction of air pressure. This translates
into a lack of power and thus reduction in generator output.
Temperature affects both engine and generator performance. As
temperature increases, an engine will run less efficiently and more
resistance will be found in electrical components. Therefore, as the
temperature increases, the output of the generator decreases. Altitude
also affects the cooling capacity of air—the higher the altitude the less
dense the air is and thus the lower its ability to transfer heat.
For every increase in altitude of 500 m (1650 ft.) above 1000 m (3300
ft.), the output of the generator will be reduced by 3%. For every
increase of 5° C (9° F) in ambient temperature above 40° C (104° F),
the output of the generator will be reduced by 3%. Use the tables
shown for altitude and temperature deration factors. It may be
necessary to consider both altitude and ambient temperature deration
factors to determine true generator output.
wc_tx000447gb.fm
Ambient Temp.
°C (°F)
Derate
Factor
45 (113)
3%
0.97
50 (122)
6%
0.94
55 (131)
9%
0.91
60 (140)
12 %
0.88
Altitude
m (ft.)
Derate
Factor
1500 (4900)
3%
0.97
2000 (6600)
6%
0.94
2500 (8200)
9%
0.91
3000 (9900)
12 %
0.88
3500 (11500)
15 %
0.85
4000 (13100)
18 %
0.82
19
Operation
5.5
GP 2500A
Grounding the Generator
See Graphic: wc_gr000544
A ground connection (a) is located on the generator frame. For proper
operating safety, this ground terminal must be connected to a good
ground source. This ground connection must comply with National
Electrical Code standards, and state and local regulations.
=
w c _ g r0 0 0 5 4 4
5.6
Operating Heavy Loads
Limit operations requiring the maximum rated output of 2500 Watts to
20–30 minutes. For continuous operation, do not exceed the
continuous rated output of 2250 Watts.
CAUTION: DO NOT exceed the current limit specified on the control
panel for any receptacle.
wc_tx000447gb.fm
20
GP 2500A
5.7
Operation
Use of Extension Cords
WARNING
Current
When a long extension cord is used to connect an appliance or tool to
the generator, a voltage loss occurs—the longer the cord, the greater
the voltage loss. This results in less voltage being supplied to the
appliance or tool and increases the amount of current draw or reduces
performance. A heavier cord with a larger wire size will reduce the
voltage loss.
Damaged extension cords can cause electrical shock, resulting in
serious injury or death. DO NOT use worn, bare, or frayed cords.
Replace damaged cords immediately.
Use the chart below as a guide for selecting proper cable size.
Load in Watts
Maximum Cable Length in Feet
(Amps)
120V
240V
#10
#12
#14
#16
2.5
300
600
1000.
600
375
250
5
600
1200
500
300
200
125
7.5
900
1800
350
200
125
100
10
1200
2400
250
150
100
-
15
1800
3600
150
100
65
-
20
2400
4800
125
75
50
-
Use only extension cords rated for outdoor use and equipped with a
third-wire ground.
CAUTION: Operating equipment at low voltage can cause it to
overheat.
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21
Operation
5.8
GP 2500A
Control Panel—GP 2500A
See Graphic: wc_gr002324
Ref.
Description
Ref.
Description
a
GFI duplex receptacle—120V
d
GFI test button
b
Circuit breaker—20 Amp.
e
GFI reset button
c
Duplex receptacle—120V
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22
GP 2500A
5.9
Operation
Ground Fault Interrupt (GFI)
See Graphic: wc_gr002324
The 120V, 20 Amp receptacle (a) is equipped with a ground fault circuit
interrupt (GFI). The GFI shuts off the power to the receptacle when a
ground fault occurs in the generator or to a piece of equipment
attached to the generator. This GFI also protects the second 120V,
20A receptacle (c).
The GFI should be tested for proper operation every time the generator
is used.
To test GFI:
Start generator. Push TEST button (d) on receptacle in. The RESET
button (e) will pop out. Power is now off at the receptacle. If the RESET
button does not pop out, the GFI is not working. Do not run generator
until the problem can be corrected. To restore power to receptacle,
push the RESET button in.
If the RESET button pops out during operation, stop the generator and
check it and equipment for defects.
5.10 Circuit Breaker
See Graphic: wc_gr002324
The generator is also protected by a 20 amp circuit breaker (b) located
on the control panel.
The circuit breaker protects the generator from severe overloads or
short circuits. If the circuit breaker opens, turn the engine off
immediately and determine the cause before restarting. Check the
appliances and tools attached to the generator for defects and make
sure their power requirements do not exceed the power rating of the
generator or the current limit of the receptacles.
When the circuit breaker opens, the breaker button will pop out. To
reset circuit breaker, push button in.
wc_tx000447gb.fm
23
Operation
GP 2500A
5.11 Before Starting
5.11.1 Read and understand the safety and operating labels and instructions
at the beginning of this manual
5.11.2 Inspect the generator for any signs of damage which may affect
operation or pose a safety hazard.
5.11.3 Check:
•
oil level in engine
•
fuel level
•
condition of air cleaner
•
tightness of external fasteners
•
condition of fuel lines.
Note: The engine is equipped with an oil alert system. If the oil level in
the engine drops too low, the engine will not start.
5.11.4 Fill the fuel tank with fresh, regular, unleaded grade gasoline. DO NOT
use an oil/gas mixture. The use of gasohol or any fuel containing more
than 10% ethanol is not recommended. Consult the engine owner's
manual for complete fuel specifications.
wc_tx000447gb.fm
24
GP 2500A
Operation
5.12 To Start
See Graphic: wc_gr002818
5.12.1
Disconnect all loads from the generator.
5.12.2
Open the fuel valve (a1).
Note: If the engine is cold, move the choke lever to the closed position
(b2). If the engine is hot, set the choke to the open position (b1).
5.12.3
Turn the engine switch to "ON" (c1).
5.12.4
Pull the starter rope (d).
Note: If the oil level in the engine is low, the engine will not start. If this
happens, check the oil level and add oil as needed.
5.12.5
Open the choke as the engine warms (b1).
5.12.6
Allow the engine to warm up a few minutes before attaching loads.
b2
b1
c2
a2
c2
d
a1
wc_gr002818
5.13 To Stop
See Graphic: wc_gr002818
5.13.1
Turn off and disconnect all tools and appliances attached to the
generator.
5.13.2
Turn the engine switch to “OFF” (c2).
5.13.3
Close the fuel valve (a2).
Note: To stop the engine quickly in an emergency, turn the engine
switch to “OFF” (c2).
wc_tx000447gb.fm
25
Maintenance
6.
GP 2500A
Maintenance
6.1
Engine Maintenance
The chart below lists basic machine and engine maintenance. Refer to
the engine manufacturer’s Operator’s Manual for additional
information on engine maintenance.
6.2
Periodic Maintenance Schedule
Daily
before
starting
Check the fuel level.
„
Check the engine oil level.
„
Inspect the air filter. Replace as
needed.
„
Check external hardware.
„
After
first
20 hrs.
Clean the air cleaner element.*
Every
50
hrs.
Every
100
hrs.
Every
300
hrs.
„
Inspect the shockmounts for damage.
„
Change the engine oil.*
„
„
Clean the sediment cup or fuel
strainer.
„
Check and clean the spark plug.
„
Check and adjust the valve clearance.
„
Clean the fuel tank.*
„
Check condition of the fuel line.
Replace when necessary.
„
*Service more frequently in dusty conditions.
wc_tx000448gb.fm
26
GP 2500A
6.3
Maintenance
Engine Oil
See Graphic: wc_gr000022
6.3.1
Drain the oil while the engine is still warm.
6.3.2
Remove the oil filler plug (a) and the drain plug (b) to drain the oil.
Note: In the interests of environmental protection, place a plastic sheet
and a container under the machine to collect any liquid that drains off.
Dispose of this liquid in accordance with environmental protection
legislation.
wc_tx000448gb.fm
6.3.3
Install the drain plug.
6.3.4
Fill the engine crankcase with the recommended oil up to the level of
the plug opening (c). See Technical Data for oil quantity and type.
6.3.5
Install the oil filler plug.
27
Maintenance
6.4
GP 2500A
Servicing Air Cleaner
See Graphic: wc_gr002815
Service the air cleaner frequently to prevent carburetor malfunction.
CAUTION: NEVER run the engine without the air cleaner. Severe
engine damage will occur.
NEVER use gasoline or other types of low flash-point solvents for
cleaning the air cleaner. A fire or explosion could result.
WARNING
To service:
6.4.1
Remove the air cleaner cover (a). Inspect the element (b) for holes or
tears. Replace the element if it is damaged.
6.4.2
Wash the foam element (b) in a solution of mild detergent and warm
water. Rinse it thoroughly in clean water. Allow the element to dry
thoroughly. Soak the element in clean engine oil and squeeze out
excess oil.
a
b
wc_gr002815
wc_tx000448gb.fm
28
GP 2500A
6.5
Maintenance
Spark Plug
See Graphic: wc_gr000028
Clean or replace the spark plug as needed to ensure proper operation.
Refer to the engine owner’s manual.
The muffler becomes very hot during operation and remains hot for a
while after stopping the engine. Do not touch the muffler while it is hot.
WARNING
Note: Refer to the Technical Data for the recommended spark plug
type and the electrode gap setting.
6.5.1
Remove the spark plug and inspect it.
6.5.2
Replace the spark plug if the insulator is cracked or chipped.
6.5.3
Clean the spark plug electrodes with a wire brush.
6.5.4
Set the electrode gap (a).
6.5.5
Tighten the spark plug securely.
CAUTION: A loose spark plug can become very hot and may cause
engine damage.
wc_tx000448gb.fm
29
Maintenance
6.6
GP 2500A
Cleaning the Sediment Cup
See Graphic: wc_gr000029
wc_tx000448gb.fm
6.6.1
Turn the fuel valve off.
6.6.2
Remove the sediment cup (a) and the O-ring (b).
6.6.3
Wash both thoroughly in a nonflammable solvent. Dry and reinstall
them.
6.6.4
Turn the fuel valve on and check for leaks.
30
GP 2500A
6.7
Maintenance
Carburetor Adjustment
See Graphic: wc_gr000032
6.7.1
Start the engine and allow it to warm up to operating temperature.
6.7.2
Set the pilot screw (a) two turns out. See Note.
6.7.3
With the engine idling, turn the pilot screw (a) in or out to the setting
that produces the highest rpm.
6.7.4
After the pilot screw is adjusted, turn the throttle stop screw (b) to
obtain the standard idle speed. See Technical Data.
Note: On some engines the pilot screw is fitted with a limiter cap (c)
to prevent excessive enrichment of the air-fuel mixture in order to
comply with emission regulations. The mixture is set at the factory and
no adjustment should be necessary. Do not attempt to remove the
limiter cap. The limiter cap cannot be removed without breaking the
pilot screw.
wc_tx000448gb.fm
31
Maintenance
6.8
GP 2500A
Adjusting Engine Speed
See Graphic: wc_gr000032
Generators require a fixed engine speed to maintain the correct
voltage. Engine speed is controlled by a governor which automatically
adjusts to varying loads on the engine to maintain a constant speed.
There is no throttle control.
To set the engine to the proper speed:
Turn the speed adjusting screw (b) in or out to obtain a no-load speed.
See Technical Data.
CAUTION: Setting the engine speed too high or too low may damage
tools and other appliances attached to the generator.
6.9
Storage
Before storing the generator for a long period of time:
6.9.1
Close the fuel valve and remove and empty the sediment cup or fuel
strainer.
6.9.2
Disconnect the fuel line from the carburetor. Place open end of fuel line
into a suitable container and open fuel valve to drain fuel from tank.
WARNING
wc_tx000448gb.fm
Gasoline is extremely flammable. Drain the fuel tank in a wellventilated area. DO NOT drain the fuel tank in an area with flames or
sparks.
6.9.3
Loosen the drain screw on the carburetor and drain any remaining fuel
from the carburetor.
6.9.4
Change the engine oil.
6.9.5
Remove the spark plug and pour approximately 30 ml (1 ounce) of
clean engine oil into the cylinder. Crank the engine a few turns to
distribute the oil to the inside of the cylinder walls.
6.9.6
Pull the starter rope slowly until resistance is felt and leave the handle
in this position. This ensures that the intake and exhaust valves are
closed.
6.9.7
Store the generator in a clean, dry area.
32
GP 2500A
Maintenance
6.10 Transport
Let the engine cool before transporting the generator or storing
indoors, to avoid burns or fire hazards.
WARNING
When transporting the generator:
6.10.1
Turn the engine fuel valve to the OFF position.
6.10.2
Position the generator level to prevent fuel from spilling.
6.10.3
Secure the generator by tying it down with a suitable rope.
WARNING
When transporting the machine by hand, be sure to employ manpower
commensurate with the weight of the machine. To avoid back injury
when lifting the machine, bend the knees to pick it up rather than
bending your back only.
6.11 Troubleshooting
Problem / Symptom
Reason / Remedy
If engine doesn't start, check
that:
• Engine switch is on "Start".
• Fuel valves under fuel tank and on engine are open.
• Fuel tank has fuel.
• Choke lever is in correct position. Choke should be
closed when starting a cold engine.
• All loads are disconnected from generator.
• Spark plug is in good condition.
• Spark plug cap is tight.
• Engine oil level is adequate.
If engine starts but there is no
power at receptacles, check
that:
• Circuit breaker is closed.
If engine starts but runs erratically, check that:
• Hose routing from the fuel tank to the engine is correct. For proper operation, the hose must run
through the bushing in the lifting bracket. Refer to
the Parts Book for illustration.
wc_tx000448gb.fm
• Connector from generator to control panel is tight.
33
Maintenance
GP 2500A
6.12 Wire Colors
Wire Colors
B
Black
R
Red
Y
Yellow
Or
Orange
G
Green
T
Tan
Br
Brown
Pr
Purple
L
Blue
V
Violet
Cl
Clear
Sh
Shield
P
Pink
W
White
Gr
Gray
LL
Light blue
6.13 Wiring Schematic
See Graphic: wc_gr002325
Ref.
Description
A
Generator
Ref.
Description
Ref.
Description
Ref.
B
Control Box
C
Ref.
Description
Engine
Description
1
Main stator winding
7
Duplex receptacle—120V
2
Secondary winding
8
Ignition switch
3
Rotor winding
9
Oil alert module
4
Automatic voltage regulator
10
Oil level switch
5
20A circuit breaker
11
Coil
6
GFI duplex receptacle—120V
wc_tx000448gb.fm
34
GP 2500A
wc_tx000448gb.fm
Maintenance
35
Maintenance
GP 2500A
Notes
wc_tx000448gb.fm
36
Wacker Construction Equipment AG
·
Preußenstraße 41
· D-80809 München
· Tel.: +49-(0)89-3 54 02 - 0 · Fax: +49 - (0)89-3 54 02-3 90
Wacker Corporation · P.O. Box 9007 · Menomonee Falls, WI 53052-9007 · Tel. : (262) 255-0500 · Fax: (262) 255-0550 · Tel. : (800) 770-0957
Wacker Asia Pacific Operations · Skyline Tower, Suite 2303, 23/F · 39 Wang Kwong Road, Kowloon Bay, Hong Kong · Tel. +852 2406 60 32 · Fax: +852 2406 60 21