ENG
1.01
1 0991 497
EN
-
24.03.2017
11 / 16
3010
¾”
V
ALVE
M
ANUAL
I
NSTALLATION
,
U
SE AND
M
AINTENANCE
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Tighten the lock nut (3).
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The adjustment is finished.
3.9
PIPE RUPTURE VALVE (VC) TEST (IN THE VALVE BLOCK) – N° 5
WARNING
Before doing this test, the pipe rupture valve mounted on the piston should be adjusted (refer to VC
manual)
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Send the car with full load to the highest floor.
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Once the car has stopped.
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Loosen the lock nut (5) to test the rupture valve
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Completely tighten the screw n.5 .
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Call the car to the lowest floor.
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The test is finished.
NOTE:
WHEN THE CAR DOWNWARD SPEED MATCHES THE INTERVENTION FLOW,THE
RUPTURE VALVE CLOSES TO STOP THE CAR (IN CASE OF BY-PASS RUPTURE VALVE,THE
CAR LOWERING CONTINUES SLOWLY).IN CASE THE RUPTURE VALVE DOES NOT
CLOSE,FOLLOW THE FACTORY INSTRUCTIONS TO REDUCE ITS INTERVENTION SPEED TO
BE ABLE TO RESTART THE TEST.
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Completely loosen the n.5 .
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During the standard car downward we do not have any intervention of the rupture valve
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Completely tighten the lock nut (5).
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The test is finished.
3.10
ADJUSTMENT OF THE MINIMUM RAM PRESSURE, VSMA (2:1 SYSTEMS) N° 6
Only in installations with traction 2:1.
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Close the ball valve (S).
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Press the manual lowering button (MM) to release pressure.
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Check the pressure on the manometer (MAN) is around 6 bar.
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If the pressure it not correct, adjust screw (6).
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The adjustment is finished.
3.11
MANUAL LOWERING OPERATION (EMERGENCY ONLY) – BUTTON (MM)
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Press the manual lowering button (MM) to send downward the car to the unlock door area
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3.12
ADJUSTMENT OF THE MAXIMUM PRESSURE - HAND PUMP
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Close the ball valve (S).
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Verify that the suction tube is immersed in the oil.
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Loosen the screw (V) two or three turns to bleed the air.
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Push the lever several times till the oil starts flowing through the
screw (V).
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Tighten the screw (V) completely.
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Loosen the lock nut (10)
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Loosen the screw (10) two or three turns.
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Open the shut-off valve for pressure gauge exclusion (RUB).
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Push the hand pump lever to reach the maximum pressure,
adjust the screw (10) till the value is 2,3 times the full load
pressure (refer to the lift technical report).
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Example
:
If full load pressure is 35 bar, screw (10) should be adjusted to:
35 x 2,3 = 80,5
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When the pressure is correct.
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Tighten lock nut (10).
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Open the ball valve (S).
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The adjustment is finished.