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Manufacturer Wacker Neuson Produktion GmbH & Co. KG Preußenstraße 41 80809 München www.wackerneuson.com Tel.: +49-(0)89-354 02-0 Fax: +49-(0)89-354 02-390 Translation of the original operator's manual in German...
Foreword This operator's manual contains information and procedures for the safe opera- tion and maintenance of your Wacker Neuson machine. In the interest of your own safety and to prevent accidents, you should carefully read through the safety information, familiarize yourself with it and observe it at all times.
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2 Introduction Introduction Means of representation for this operator's manual Warning symbols This operator's manual contains safety information of the categories: DANGER, WARNING, CAUTION, NOTICE. They should be followed to prevent danger to life and limb of the operator or dam- age to equipment and exclude improper service.
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This symbol is used for lists. Wacker Neuson representative Depending on your country, your Wacker Neuson representative is your Wacker Neuson service, your Wacker Neuson affiliate or your Wacker Neuson dealer. You can find the addresses in the Internet at www.wackerneuson.com.
2 Introduction Identification of the machine Nameplate data The nameplate lists information that uniquely identifies your machine. This infor- mation is needed to order spare parts and when requesting additional technical information. Enter the information of your machine into the following table: Item Designation Your information...
EC Declaration of Conformity Manufacturer Wacker Neuson Produktion GmbH & Co. KG, Preußenstraße 41, 80809 München Product Product GS 12Ai Product category Generator Product function Electricity generation Item number 0620317 Net installed power 9,47 Measured sound power 95 dB(A) level...
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GS 12Ai Table of Contents Foreword EC DECLARATION OF CONFORMITY Safety Information Signal Words Used in this Manual ............11 Machine Description and Intended Use ..........12 Safety Guidelines for Operating the Machine ........13 Operator Safety while Using Internal Combustion Engines ....15 Service Safety ..................
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Table of Contents GS 12Ai Maintenance Periodic Maintenance Schedule ............32 Engine Oil ....................33 Servicing the Air Cleaner ..............34 Spark Plug ...................35 Maintaining the Fuel Filter ..............36 Engine Speed ..................36 Replacing the Fuse ................36 Troubleshooting ...................37 Wire Colors ..................37 5.10 Engine Wiring ..................38 5.11...
GS 12Ai Safety Information Safety Information Signal Words Used in this Manual This manual contains DANGER, WARNING, CAUTION, NOTICE, and NOTE signal words which must be followed to reduce the possibility of personal injury, damage to the equipment, or improper service.
Safety Information GS 12Ai Machine Description and Intended Use This machine is a portable electric power source. The Wacker Neuson Portable Generator consists of a tubular steel frame surrounding a fuel tank, a gasoline engine, a control panel, and an electric alternator.
GS 12Ai Safety Information • Personal injury from improper lifting techniques To protect yourself and others, make sure you thoroughly read and understand the safety information presented in this manual before operating the machine. Safety Guidelines for Operating the Machine...
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Safety Information GS 12Ai Familiarity and proper training are required for the safe operation of the machine. Machines operated improperly or by untrained personnel can be hazardous. Read the operating instructions contained in this WARNING manual and the engine manual, and familiarize yourself with the location and proper use of all controls.
GS 12Ai Safety Information Operator Safety while Using Internal Combustion Engines WARNING Internal combustion engines present special hazards during operation and fueling. Failure to follow the warnings and safety standards could result in severe injury or death. Read and follow the warning instructions in the engine owner’s manual and the safety guidelines below.
Safety Information GS 12Ai Service Safety 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 WARNING the generator is experiencing problems or is being serviced, attach a “DO NOT START”...
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Leaking fuel and fumes are extremely explosive. When replacement parts are required for this machine, use only Wacker Neuson replacement parts or those parts equivalent to the original in all types of specifications, such as physical dimensions, type, strength, and material.
2 Safety and information labels Safety and information labels Your machine has adhesive labels containing the most important instructions and safety information. Make sure that all the labels are kept legible. Replace any missing or illegible labels. The item numbers for the labels are in the parts book. Item Label Description...
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2 Safety and information labels Item Label Description Warning of hot surface. Warning of hot surface. Potential Earth - Connect cable from grounding rod to this point. WARNING! Electric shock can cause serious injury or death. Close the fuel flow valve. Open the fuel flow valve.
Description Your machine may be equipped with a lifting beam as shown in the illustration below. The lifting beam is available as an accessory kit (part number 0177442) from your Wacker Neuson dealer. wc_gr006712 Guidelines for lifting safety If your machine is equipped with a lifting beam, observe the following guidelines: •...
Lifting and Transporting GS 12Ai Transporting the Machine Let the engine cool before transporting the generator or storing it indoors, to avoid burns or fire hazards. WARNING When transporting the generator: 3.2.1 Turn the engine fuel valve to the OFF position.
Check with your nearest Wacker Neuson dealer, or contact the manufacturer or dealer of the tool or appliance, if you have questions regarding power requirements.
Operation GS 12Ai 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 watt- age to start.
GS 12Ai 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.
Operation GS 12Ai Use of Extension Cords 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.
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GS 12Ai Operation Minimum Extension Cord Size 230V Volts Total length of cord in meters 230 V 0 - 30 30 - 60 Amp Rating Cross sectional area of wire in mm 0.75 Minimum Extension Cord Size 400V 400 V...
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Operation GS 12Ai 1000 3000 4000 5000 2000 6000 A x m wc_tx001589gb.fm...
GS 12Ai Operation Isolation Monitor Generator is equipped with an Isolation Monitor. The Isolation Monitor consists of a sensing module (a), a TEST button with light (b), a relay (c), and a breaker for each phase and neutral (d1-d4). The relay and the breakers are mechanically ganged together and operate as the main circuit breaker.
Operation GS 12Ai Control Panel The generator is protected by a 16 amp circuit breaker (a) 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.
Open choke as engine warms (a2). 4.9.6 Place main circuit breaker in closed position (e1). Allow the engine to warm up for a few minutes before attaching loads. On models GS 12Ai check function of the Isolation Monitor. See Section Isolation Monitor. wc_tx001589gb.fm...
Operation GS 12Ai 4.10 Stopping 4.10.1 Turn off and disconnect all tools and appliances attached to the generator. 4.10.2 Place main circuit breaker in open position (e2). 4.10.3 Turn engine switch to “OFF” (b1). 4.10.4 Turn fuel valve off. Note: To stop engine quickly in an emergency, turn engine switch to "OFF".
GS 12Ai Maintenance Maintenance Periodic Maintenance Schedule The table below lists basic machine and engine maintenance. Tasks designated with check marks may be performed by the operator. Tasks designated with square bullet points require special training and equipment. Refer to the engine owner’s manual for additional information.
Maintenance GS 12Ai Engine Oil Drain oil while engine is still warm. 5.2.1 Remove oil fill cap (a), drain plug (b), and washer (c) to drain oil. wc_gr007589 Note: In the interests of environmental protection, place a plastic sheet and a container under the machine to collect any liquid which drains off.
GS 12Ai Maintenance Servicing the Air Cleaner NEVER use gasoline or other types of low-flash point solvents for cleaning the air cleaner. A fire or explosion could result. WARNING NOTICE: NEVER run the engine without the air cleaner. Severe engine damage will occur.
Maintenance GS 12Ai Spark Plug Clean or replace the spark plug as needed to ensure proper operation. Refer to your engine operator’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.
GS 12Ai Maintenance Maintaining the Fuel Filter 5.5.1 Change the in-line fuel filter (a) once a year or every 300 hours of operation. Check the fuel lines and fittings daily for cracks or leaks. Replace as needed. Gasoline is extremely flammable! Turn the engine off and allow the engine to cool before replacing the fuel filter.
Maintenance GS 12Ai Troubleshooting Problem / Symptom Reason / Remedy If engine doesn't start, check • Engine switch is on "Start". that: • Fuel valve on engine is open. • Fuel tank has fuel. • Choke lever is in correct position. Choke should be closed when starting a cold engine.
GS 12Ai Maintenance 5.12 Long-Term Storage Before storing generator for a long period of time: 5.12.1 Turn the engine fuel valve to the OFF position. 5.12.2 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.
GS 12Ai Technical Data Technical Data Generator Item No. GS 12Ai Generator Output 3ø kVA (kW) 11.8 1ø kVA Type Compound with brush-type system AC Voltages Available volts / phase 400 / 3ø 230 / 1ø Frequency Power Factor ø...
Technical Data GS 12Ai Engine Engine Power Rating Net power rating per SAE J1349. Actual power output may vary due to conditions of specific use. Item No. GS 12Ai Engine Engine Make Honda Engine Model GX 630 Max. rated power @ 15.5 @ 3600 rpm...
GS 12Ai Technical Data Sound Measurements The required sound specification, Paragraph 1.7.4.2.u of 2006/42/EEC Machinery Directive, is: • the guaranteed sound power level (L ) = 95 dB(A). This sound value was determined according to ISO 3744 for the sound power level (L wc_td000416gb.fm...