3.2.4. Inspection for the welder and generator set
Before starting the set, be sure that the air switch should be turned to OFF state.
If the switch is not turned to OFF state, when starting the diesel engine,
suddenly loading is very dangerous.
The generator should be grounded to prevent the electric shock.
Blow the dust out of the generator control box inside and surface by using dry
compressed air(air pressure should be less than 1.96 x 105 Pa) or manual.
Check the clean condition on the slide rings, check the carbon brush pressure,
check whether the position on the slide rings are correctly fitted. Check whether
the fixing is reliable and whether the contact is good.
According to the electric wiring diagram, check whether the wiring lines are
correct and whether the connection joints are firm.
Use a 500V megameter to measure the insulation resistance of the electric
device section and the resistance should be not less than 2 megohms. Otherwise
it is necessary to carry out a dry treatment. While measuring, AVR should be
disconnected. Otherwise AVR may be burned out. (For the noise quieting type set,
it is possible not to carry out this check.)
3.2.5. Before delivering the diesel engine from the factory, the fuel oil and
the machinery oil had been discharged.
Before filling the fuel oil and starting the diesel engine, it is necessary to check
whether there is any air mixed into the oil circuit. If there is any, the air should be
discharged. The concrete method is to unfasten the connecting nut between the
oil injection pump and the oil transmission pipe so as to discharge the air in the
fuel oil until there is no air bubbles to be appeared. Then fasten the connecting
nut again.
Potentiometer
Electric Lock
DC Output Receptacle
Anode Wiring Terminal
Cathode Wiring Terminal
Grounding Terminal
Knob Switch
Automatic Air Switch
Voltmeter
Operation
Director Light
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3.3 Inspection and Operation of the Diesel Engine
3.3.1 Low oil pressure alarm system/braking device
Our diesel engine possesses the low oil pressure alarm system/braking device.
When the oil pressure goes down, the device will automatically brake the diesel
engine to avoid the blocking-up of the diesel engine because the oil pressure is
too low and the lubrication is insufficient. (2 GF-L can not stop the machine
automatically.)
If the diesel engine is running under the condition that the lubrication oil is
insufficient, the oil temperature will go up too high. On the other hand, it is also
dangerous if these is too much oil. Because the machinery oil may be burned,
this will make that the revolution speed of the engine increase suddenly and
results in abnormal fast running . For this purpose, it is necessary to check the
machinery oil and the oil level should reach the stipulated height.
3.3.2 How to open the machinery casing door and the housing (TW series
set)
(1) Open the machinery casing door,
rotate the handle counterclockwise. Lift
the door and carry out the daily check.
(2) Unfasten the bolts of the air filter
housing and take out the oil nozzle
housing to check the air filter.
3.3.3 Trial run operation
When your diesel engine is a new set, a large loading will reduce the engine's
life. Within the first 20 hours, it is necessary to carry out the trial run.
Handle
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