Troubleshooting; 4-1 Overhauling & Troubleshooting Procedures; 4-2 Questions & Answers - Boss DY8500 Series Owner's Manual

CHAPTER 4: OVERHAULING AND TROUBLESHOOTING
4-1 Overhauling & Troubleshooting Procedures
Causes of Malfunction
Not enough fuel.
The switch of fuel is not at "OPEN" position.
High pressure pump and nozzle do not
inject fuel or the injected amount is less.
Speed control lever is not at "RUN" position. Turn speed control lever to "RUN" position.
Check level of lubrication oil.
It is not quick and powerful to pull reactive
starter.
Nozzle is dirty.
Accumulator has no electricity.
Master switch (NFB) is not switched on.
Carbon brush of generator was worn. The
contact is bad.
The socket contact is bad.
The rated revolution of engine cannot be
reached.
AVR automatic governor is damaged.
The potentiometer of current regulations
for electric welding is damaged.
If cannot generate electricity still, please contact with dealer of our company or with our company
directly.
4-2 Questions & Answers
If you do not understand anything or have any questions, please feel free to contact your local
dealer or with our company directly. Below is a list of some information you should have ready
before contacting your local dealer or us.
1. Model of diesel engine generator and engine model number.
2. State of residency
3. Number of hours of operating equipment along with the problem that occurred.
4. A detailed condition and time when the problem occurred.
In other words, climate and atmosphere.
Remedy
Add fuel.
Turn the switch of fuel to "OPEN" position.
Disassemble the nozzle and adjust it at test
table.
The standard amount of lubricating oil should
be between high and graduation "H" and low
graduation "L"
Start diesel engine in accordance with the
requirements of "start operation procedures".
Clean the nozzle.
Charge the accumulator or change it.
Turn master witch handle to "ON" position.
Change the carbon brush.
Adjust the contact feet of socket.
Make it reach the rated revolution in
accordance with the requirements.
Change it.
Change it.
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