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6 • CONTROLS
CHECKS
1 Vacuum pressure (bar)
2 Full load pressure (bar)
3 Pressure relief valve trips at... (bar)
4 Hand pump pressure relief valve trips at... (bar)
5 Pressure switch trips at... (bar)
6 Hand pump working correctly
7 Manual lowering working correctly
8 Relevelling system correct
9 Cylinder minimum pressure adjusted
10 Lift car creeping correct (<=10mm in 10 minutes)
11 Rupture valve trips correctly
12 Emergency lowering correct
13 Motor protections correct
14 Oil level correct
15 Oil condition correct
16 Return filter cleaning correct
17 No excessive leaks in the cylinder head
18 Pressure test correct (200% of the full load pressure)
19 Speed going up and down ±10% of the rated speed
20 Descent valve
21 Starting and stopping correct
1. Vacuum pressure
Check that the vacuum pressure coincides with the one
shown on the nameplate of the valve block.
2. Full load pressure
Check that the full load pressure coincides with the one
indicated in the features plate of the valve block
3. Pressure relief valve
Check the valve trips at a pressure no higher than the pre-
established value:
4. Hand pump pressure relief valve
Check the valve trips at a pressure no higher than the pre-
established value:
5. Pressure switch
Check the valve trips at a pressure no higher than the pre-
established value:
6. Hand pump
Trip the safety gear and check the hand pump is able to
release it.
7. Manual lowering
Push the red button of manual lowering and check the lift
goes down.
8. Relevelling system
At each floor, push on the manual lowering valve to check
the relevelling of the lift is working.
9. Cylinder minimum pressure
Closing the shut-off valve, press the manual lowering
button and check the manometer does not indicate a
pressure lower than 5 bar.
10. Car lift creep (≤10 mm en 10 minutes)
When the lift is stopped at floor, check the car does not
descent more than 10 mm in 10 minutes. Bear in mind the
changes of the oil properties due to the temperature.
11. Rupture valve trips properly
To test the safety gear, check the wedging of the rupture
valve by acting on the screw.
12. Emergency lowering
Switch off the power supply of the control board and
check the battery is able to energize the YD electrovalve
(descent).
V700 - 11/2017
13. Motor protections are correct
14. Oil level is correct
15. Oil condition is correct
P
= 1,4 P
16. Return filter cleaning
limit.
st. max.
P
= 2.3 P
17. No excessive leaks in the cylinder head
overpres.
st. max.
P
= P
18. Pressure test is correct (200% of the full load pressure)
pres.
st. max. + 1
19. Speed going up and down ±10% of the rated speed
20. Descent valve
21. Startings and stoppings
21/40
MP sava3 Hidraulic Power Unit 1 ¼" 1 ½"
DURING THE
THE FIRST TWO
ASSEMBLY
MONTHS
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
Check the protections.
When the car is at the highest landing, check the oil level in
the tank is higher than the minimum allowed (covering
motor and pump).
Check the condition of the oil with just a visual inspection.
Ensure that the state of the main filter located on the shut-
off valve is correct and clean it frequently.
Check the oil level in the drain bottle so that leaks do not
exceed 1 to 3 litres per month.
Check that all the elements under pressure are working
properly.
Check the speed value is included between the pre-
established values.
Once the maintenance operations have been performed,
check the state of the valve, according to the following
procedure:
- Close the shut-off valve and check that the pressure
indicated by the manometer does not exceed 4 to 6 bar in
5 minutes.
- Check that, when the lift is stopped at a landing, it does
not relevel more than once every 15 minutes.
- During the inspection operations, check the state of the
descent valve and its o-ring seal.
Check the start and stop comfort is correct in ascent and
descent trips.
MTMECMPsava3_700_EN
EVERY 5 TO
ONCE/YEAR
10 YEARS
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
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