2� 3 Checking The Operation Of The Diesel Engine - Bison BS3500DSE Owner's Manual

2-2.3 Check air旧ter
(l) Loosen the butterfly nut,take the cover
of the air filter off and take the air filter
element out.
Do not use detergent to wash the air filter
element. When the performance of the
ngine decreases or when the color of th
exhaust gases is bad,exchange the filter
element. Never start the engine without
the a订filter as foreign objects may enter
the intake and damage the engine.
(2) After replacing the air filter element
replace tbe cover and tighten the butterfly
nut firmly.
I
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． 一
．
Cover at the check mouth for air filter
Butterfly
nut
Air filter cover
Filter core
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一
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·
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2-2.4 Checking the generator welder
Before starting the generator,make sure the
air switch is in the "off'position. Starting
the generator with the switch in the "on"
switch is ve1y dangerous.
The generator should be grounded in order
to prevent elec ic shock
订
Use dry compressed air (with pressure
about 1.96 x 105 Pa) to blow the dust out
in the electric control cabinet and at the
surface of the generator. Check to see how
clean the surface of the sliding ring is.
Check the pressure of the carbon brush.
Also, check whether the position of the
carbon brush at the slide rig is correct and
the fixture is reliable with a good contact.
ccording to the electric wiring diagram
check to see whether the connecting wire
is conect and the connected place is firm.
Use a 500 MQ meter to measure the insula­
tion resistance of the electrical part. The
resistance should be less than 2MQ. When
measuring devices, make sure the capaci­
tor is h.1rned off. Otherwise,it will burn the
capacitor. (For silent set,the inspection may
not be carried out).
2-2.5 The fuel and oil in a new engine i
drained before sold .Before you start the
engine, please till the fuel tank snd oil
first. Then, check to see if there are air
bubbles in the engine. ff there are, follow
these procedures. Loosen the connecting
nut between the oil injection pump and
oil pipe. Bleed the air from the system
until there are no more bubbles. Then
replace the connecting nut and tighten
it.
2-3 Checking the operation of the diesel
engine
2-3.1 Low-pressure alarm system.
he diesel engines have a low-pres­
sure sensor system where if the oil
pressure drops to low.the sensor will
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