DAW-500S WELDER/A.C. GENERATOR — PARTS & OPERATION MANUAL — REV.#0 (07/19/01) — PAGE 11
DAW-500S — GENERAL INFORMATION
DAW-500S FAMILIARIZATION
Generator
The MQ Power Model DAW-500S welder/AC generator can
provide 450 amps of welding current when in the CV/DC
mode and 350 amps of welding current when in the CC/DC
mode.
Control Panel
The
control panel
is provided with the following:
!
One GFCI 120 volt receptacle, 20 amp (single-phase)
!
One 120 volt receptacle, 30 amp (single-phase)
!
Main Circuit Breaker 125V @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.
Water Temperature 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
In the event of low oil pressure (engine), this welder/AC
generator is equipped with an engine protection fail safe
system . 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 37) in this manual.
Engine
The DAW-500S is powered by a 4-cycle KUBOTA
diesel
engine. This engine is designed to meet every performance
requirement for welder/AC generator. Reference Table 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.
Figures 2 and 3 (pages 13-14) show the basic controls and
indicators for the DAW-500S Welder/AC generator.
Circuit Breakers
To protect the welder/AC generator from an overload,
a single-
pole, 25 amp,
main
circuit breaker is provided. In addition a
single pole, 20 amp breaker is provided for the G.F.C.I.
receptacle. Make sure to switch both circuit breakers to the
"OFF" position prior to starting the engine.
General Inspection Prior to Operation
The DAW-500S utilizes a welder/AC generator that has been
thoroughly inspected and accepted prior to shipment from
the factory. However, be sure to check for damaged parts or
components, or loose nuts and bolts, which could have
occurred in transit.