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PAGE 18 — DA7000 SERIES GENERATORS• OPERATION AND PARTS MANUAL — REV. #5 (01/20/11)
GENERAL INFORMATION
FAMILIARIZATION
Generator
The Multiquip DA7000 Series generators are 6.0 kW
(continuous output), 7.0 kW (max output) A.C. generators
designed as a portable dual purpose power source for 60
Hz (single phase) lighting facilities, power tools, submersible
pumps and other industrial and construction machinery.
Control Panel
The control box is provided with the following:
GFCI 120 volt receptacle, 20 amp (single-phase)
120 volt receptacle, 25 amp (single-phase)
120/240 volt receptacle, 25 amp (single-phase)
120/240 volt receptacle, 25 amp (single-phase)
AC Voltmeter
Main Circuit Breaker 265V @25 Amps
GFCI Circuit Breaker 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 generator it will cause a complete unit
shut down.
Battery Charge Alarm
This unit is equipped with a protective device that signals
an alarm and automatically stops the engine when the
battery cannot be charged by the alternator.
Water Temperature Alarm
This unit is equipped with an apparatus that signals
an alarm 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 Alarm
This unit is equipped with a protective device that detects
low oil pressure. If the lubricating oil pressure of this unit
should become abnormally low, the protective device will
automatically stop the engine. If this condition should
occur, please refer to the engine troubleshooting table in
this manual.
Idle Control Switch
The DA7000 series generators are 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.
With AC loads of more than 150W (such as lighting
equipment, motor-powered tools, submersible water
pumps, etc.), the engine runs at high speed. When a no load
condition is produced, the engine automatically slows down.
Turn the idle control switch to the “ON” (up) position when
AC loads of more than 150W are connected. Turn the idle
control switch to the “OFF” (down) position when AC loads
of less than 100W or when a magnetic switch is used.
Excitation System
The DA7000 series generators use 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 generator (or
alternator end).
Excitation current is sourced from the battery to the
excitation windinding in the stator. Current applied to this
coil creates a magnetic fi eld. The rotating armature is
induced with AC current.
Engine
The DA7000 series generators are powered by a water-
cooled, 4-cycle KUBOTA diesel engine. This engine is
designed to meet every performance requirement of the
generator. Reference Table 2, engine specifi cations.
In keeping with Multiquip's policy of constantly improving
its products, the specifi cations quoted herein are subject
to change without prior notice.
Figure 3 and Figure 4 show the basic controls and indicators
for the DA7000 series generators.