LeeBoy 8515D, Инструкция по эксплуатации, обслуживанию и ремонту

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LeeBoy Model 8515D Conveyor Paver 5-21
Maintenance
Generator Speed Tuning
This adjustment should only be
performed by an authorized LeeBoy dealer. Work
not performed by an authorized dealer can damage
machine and void the warranty.
A voltmeter set to read frequency (Hz) can be used to
test generator speed. When the engine is running at
2200 RPMs, the generator should operate at 58 to 62
Hz, or a speed of 3480 to 3720 RPMs. If the generator
speed drops below 3480 RPMs, the voltage output
and performance of the heating system will decrease
significantly. When testing the generator speed, make
certain that the paver engine is at 2200 RPMs and the
hydraulic temperature is at normal operating levels.
The generator should never be
operated at a speed of 3800 RPMs or greater.
Generator damage will occur and void your warranty.
Your authorized LeeBoy dealer will perform the
following procedure:
1. Raise the conveyor bed and insert safety prop.
2. Set voltmeter to read frequency (Hz), to measure
between the two main input wires L1 and L2. (Figure
5-27) A photo tachometer may also be used to
check the speed of the generator at the motor
coupling by removing the motor coupling shield.
3. Note that 60 Hz is exactly 3600 RPMs. For every
Hz above 60, an increase of 60 RPMs can be added
to 3600 RPMs. For every Hz below 60, a decrease
of 60 RPMs can be subtracted from 3600 RPMs.
Example:
60 Hz is 3600 RPMs. A reading of 62 Hz
would be 3720 RPMs. A reading of 58 Hz would be
3480 RPMs.
Always replace shields and panels
when finished testing.
Improper adjusting will overspeed and
cause damage to the generator.
NOTE: The integrated flow-control manifold is pre-
set and will maintain the generator at it’s
proper speed if the correct amount of oil is
supplied to the set. If the temperature of the
hydraulic system rises above 160°F, some
slippage may occur through the gear set of
the generator motor, and the generator may
slow slightly.
Generator Voltage Testing
The generator is hydraulically-driven. When the
hydraulic system is at normal operating temperature and
the engine is running at maximum RPMs, the generator
produces between 220 VAC and 240 VAC.
The generator voltage depends upon speed (RPMs),
increasing voltage as RPMs increase and decreasing
voltage as RPMs decrease. The voltage will decrease
significantly if the generator speed is slower than 3000
RPMs.
NOTE: When testing the generator voltage ensure the
paver engine is at 2200 RPMs and the hydraulic
temperature is at normal operating levels.
Test the generator voltage at the generator and at the
control box using the following procedure:
1. Use a volt meter to measure between the two main
input wires L-1 (black wire) and L-2 (white wire) at
the generator.
(Figure 5-26) If you measure from
L-1 to the frame of the paver, or ground, the voltage
will be half the rated output of the generator.
2. Using the volt meter, measure between the black
and white input wires inside the control box on the
terminal block. The voltage should be the same as
what you measured at the generator.
If the voltage is lower, make certain the generator is
turning the correct speed by testing with a Hz meter or
photo tachometer. If the voltage is still low, contact your
authorized LeeBoy dealer for generator speed tuning
(see next section).
Figure 5-26. Generator