A2.3. Levelling Speed (Does Not Function Correctly) - MP sava3 Technical Manual

Hydraulic power unit
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A2.3. Levelling speed (does not function correctly)

- Speed change screen (Magnets on guiderails).
- The pulse magnets used for carrying out a change of speed are incorrectly positioned  Alter their distance.
v
0,63 m/second between floors X=70 cm. Highest floors X=90 cm (greater than the distance between floors).
1 m/second  between floors X=100 cm. Highest floors X=120 cm (greater than the distance between floors).
0,8
v
- Hydraulic oil.
- The temperature of the oil may be too low (below 5º C) meaning that the lift may not be able to change speed.
 It is necessary to install a tank-heating element (or check its performance if one is already installed).
- Deceleration regulator (screw nº 3).
- The screw may be excessively tightened and the lift may change speed very slowly  Turn the regulator to open it in the direction indicated by the arrow.
- The screw thread may be broken and not act as a regulator  Check.
- Check the state of the filter and the intake port for the regulator screw nº 3  Take it out and clean it if required.
- Speed change electrovalve (YR).
- The coil does not connect  Check the connection in the connector and in the control panel terminal.
 To check that there is no excitation in the coil, place a screwdriver on the upper part to perceive any force of attraction.
- The electrovalve actuator is blocked  the oil returns to the tank via the YR electrovalve sheath.
- The position of the ball on the base supplement or on the base of the electrovalve may be damaged.
 Clean any possible shavings or impurities.
 Place the ball catch on the mechanized cone at the base of the electrovalve.
V700 - 11/2017
MP sava3 Hidraulic Power Unit 1 ¼" 1 ½"
30/40
MTMECMPsava3_700_EN

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