LeeBoy 8510b, Operation & Service Manual

Page: 100 / 320

7-18 LeeBoy Model 8510B Conveyor Paver
Maintenance
To Fine Tune Generator Speed:
There is a fine tune adjustment
(Figure 7-16,1)
provided
on the top of the manifold. This adjustment will only
effect the speed of the generator a small amount. The
manifold should not be out of adjustment any more than
1/8 turn of this adjustment.
Over adjustment will cause damage to
the generator and void the warranty.
NOTE: Generator Speed should only be adjusted by an
Authorized LeeBoy Dealer.
4. Locate the Fine Tune Adjuster (Figure 7-16,1) and
turn to increase or decrease the speed as needed.
NOTE: Clockwise (CW) adjustment will slow the
generator down.
Counter Clockwise (CCW) adjustment will speed
the generator up.
Generator Fine Tuning
Figure 7-16
1 - Fine Tune Adjuster
If your generator will not operate at the correct speed
it may be necessary to test the hydraulic flow from the
pump, or check the generator motor for excessive case
drain flow. The case drain of the motor should not leak
more than 1 gallon per minute. Replace the generator
motor or paver pump if either are found to be operating
incorrectly.
To Measure Generator Speed:
1. Remove back panel from generator housing to
access the rear of the generator.
2. Use volt meter, set to read frequency (Hz), to
measure between the two main input wires L1 and
L2 (Figure 7-15) .
NOTE: A photo tachometer may also be used to check
the speed of the generator at the motor coupling
by removing the motor coupling shield.
Always replace shields and panels
when finished testing.
3. Note that 60 Hz is exactly 3600 rpm. For every
single Hz above 60 an increase of 60 rpm can be
added to 3600 rpm. For every single Hz below 60
Hz a decrease of 60 rpm can be subtracted from
3600 rpm.
Example: 60 Hz is 3600 rpm. A reading of 62 Hz would
be 3720 rpm. A reading of 58 Hz would be 3480 rpm.
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.
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