SDLG WP6, Руководство по обслуживанию

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Service Manual for WP6 Diesel Engine
100

The brightness of indicator lamp is
normal, and it goes out automatically
after engine is started, generator output
voltage is 27~28.5V; it means the
exciting circuit has problem and needs
to be repaired.

The brightness of indicator lamp is
normal, but it doesn’t go out after
engine is started, generator output
voltage is 27~28.5V; it means generator
regulator has problem and needs to be
checked.

The brightness of indicator lamp is
normal, but it doesn’t go out after
engine is started, generator output
voltage is battery voltage; it means there
is fault in generator regulator, rectifier
bridge, stator or inner connectors, and
needs to be repaired or replaced.
b) Low charging voltage
Fault 2: Low charging voltage
Phenomenon Fault detection Troubleshooting
Battery is
occasionally
underpowered,
low charging
voltage, and the
voltage declines
markedly once
loaded.
Check whether generator
output power is reasonably
matched with electrical
appliances.
a. Check whether
voltmeter is damaged.
b. Check generator speed.
c. Check the quality and
tensioning situation of
generator belt and
relevant pulley belts.
d. Check generator
pulley.
e. Check whether electric
wires are reasonably
connected, measure the
voltage of generator
and battery.
f. Check whether wires in
charging system are
loose, oxidized and
producing too much
heat, check whether
bolt connections are
loose.
g. Measure output voltage
Measure generator B+ terminal voltage,
which should be within 27.8~28.4V, if the
voltage is normal, then it means voltmeter
failure or voltmeter sampling point is in fault,
repair or replace.
a.
It is recommended the generator idling
speed should exceed 1600rpm.
b. Generator speed should be 2000rpm and
above, or the voltage should be about 27V
when high power load appliance like air
condition is working
c. Check the quality of generator belt and
relevant pulley belts, for belt involved
severe coking, breakage, deformation or
wear should be replaced.
d. Tension generator belt and relevant pulley
belts.
NOTICE: If the to-be replaced belt is in
twin-drive belt system, then the belts
should be replaced together.
e. If voltage drop is bigger than 1V in heavy
load condition (thin wire results in big
voltage drop), the wire should be replaced.
0~35A S≥6mm
2
35~70A S≥12mm
2
70~100A S≥20mm
2
100~150A S≥25mm
2
f. If the wire or connector gets too hot in