31
Should the minimum rpm need to
be regulated proceed as follows
(fig. 12):
4.1)
Using a 13 mm wrench
loosen the lock-nut (D) and use a
screwdriver
to
tighten
the
regulation screw (V) (to increase
revs) or to loosen it (to reduce the
revs), re-securing it using the
lock-nut (D).
4.2)
Start
the
machine
by
repeating
all
operations
as
indicated in points 1 - 2 - 3 - 4 of
this paragraph until the desired
value is obtained as indicated in
paragraph 2.
FIG.12
-- 8.2) CHECKING AND SETTING OF THE MAXIMUM FINAL VALUE
(Fig. 13)
--
The maximum final pressure is set during the machine testing stage. With
motor running at minimum and cocks closed, the pressure value indicated on the gauge
on the control panel must correspond to that indicated in paragraph 2. In the event of a
variation of over ± 5% proceed with
calibration of the maximum pressure valve
as
follows:
1)
Keep the machine running with cocks
closed.
2)
Loosen the lock-nut (2) fig. (13)
3)
Tighten the regulation screw (1) to
increase the pressure.
Loosen regulation screw (1) to reduce the
pressure.
4)
Re-secure the counter-nut (2).
5)
Slightly open the air delivery cock for 3-4
seconds in order to accelerate the motor,
then close again. Repeat this operation 2 -
3 times for valve positioning.
FIG. 13
6)
Read the pressure on the gauge and if necessary repeat calibration as indicated in
points 2 - 3 - 4, until a value as indicated in paragraph 1 is obtained 1.
A B
Содержание MDVN 71 AP
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