Multiquip operation manual BLW-400SSW General Information

Table of Contents

BLW-400SSW — GENERAL INFORMATION

BLW-400SSW FAMILIARIZATION

Generator

The MQ Power Model BLW-400 welder/AC generator can provide 400 amps of welding current with a single operator or 200 amps of welding current simultaneously with two operators. When used as a welder/AC generator it can provide a maximum of 6,000 watts of power.

Control Panel

The control panel is provided with the following:

!One GFCI 120 volt receptacle, 20 amp

!One 120 volt receptacle, 30 amp

!One 120/240 volt receptacle, 30 amp

!Main Circuit Breaker 265V @25 amps

!Circuit Protector Breaker (GFCI) 120V @20 amps

!Idle Control Switch

!Starter Switch

!Warning Lamp Unit

!Hour Meter

!Ground Terminal

Engine Protection System

Engine protection fail safe features are provided in the event of low oil pressure, high coolant temperature and failure of the battery to charge. If any of the above conditions occur while operating the welder/AC generator, it will cause a complete unit shut down.

Battery Charge Indicator

This unit is equipped with a protective device that signals an indicator and automatically stops the engine when the battery cannot be charged by the alternator.

WaterTemperature Indicator

This unit is equipped with an apparatus that signals an indicator and automatically stops the engine when the cooling water temperature becomes abnormally high. This apparatus will not function properly if the machine is operated with less than the proper amount of coolant.

Oil Pressure Warning Indicator

If low oil pressure is detected while operating the welder/AC generator, the engine protection system will shut down the engine.

If this condition (low oil pressure) should occur, please refer to the engine troubleshooting table (page 44) in this manual.

Excitation System

The BLW-400SSW Welder/AC generator uses a brushless exciter to create rated output electricity. This system will use the mechanical energy generated by the 3600 RPM engine to spin the rotor (or armature) inside the welder/AC generator (or alternator end).

The motion created by the rotor (which holds copper coils) spins inside a housing of permanent magnets called the "STATOR". A magnetic field is created by the stator and produces an electrical current.

Engine

The BLW-400SSW is powered by a 4-cycle KUBOTA diesel engine. This engine is designed to meet every performance requirement for welder/AC generator.ReferenceTable 1, page 10 for engine specifications.

In keeping with MQ Power's policy of constantly improving its products, the specifications quoted herein are subject to change without prior notice.

Idle Control Switch

The BLW-400SSW Welder/AC generator is provided with an automatic idle (engine) control capability for noise suppression and fuel cost reduction. The automatic idle control feature automatically engages under a no-load condition.

When the Idle Control Switch is placed in the “ON” position, the engine revolutions will be approximately 2200 rpm (low- speed operation). When a load is connected to one of the output receptacles, the engine speed will automatically increase to about 3600 rpm (high-speed operation) within 10 seconds. Conversely, when the load is removed, the engine speed will automatically drop back down to 2200 rpm within 10 seconds.

BLW-400SSW-WELDER/AC GENERATOR— PARTS & OPERATION MANUAL— REV. #1 (06/15/01) — PAGE 11