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0 • INDIVIDUAL PROTECTION EQUIPMENT .................................................................................................................................................................................... 4
1 • HYDRAULIC POWER UNIT ........................................................................................................................................................................................................... 4
1.1. Mechanical assembly .................................................................................................................................................................................................................. 4
1.2. Types of pipe couplings ............................................................................................................................................................................................................... 5
1.3. Process for joining steel pipes .................................................................................................................................................................................................... 5
1.4. Steel pipes and flexible hoses ..................................................................................................................................................................................................... 6
1.5. Rupture valve .............................................................................................................................................................................................................................. 6
1.6. Electrical connections for 3-phase motors ¡Error! Marcador no definido. .................................................................................................................................. 7
1.7. Sart-up ......................................................................................................................................................................................................................................... 8
2 • BLOCK OF VALVES ..................................................................................................................................................................................................................... 8
2.1. MP sava3 Valve Block according to 2014/33/EU European Standard ....................................................................................................................................... 9
2.1.1. Description of valves............................................................................................................................................................................................................. 9
2.1.2. Unit operation ....................................................................................................................................................................................................................... 9
2.1.3. Hydraulic circuit MP sava3 Valve Block with Soft-Stop according to European Directive 2014/33/EU ............................................................................10
2.1.4. Adjustment of Valves ..........................................................................................................................................................................................................11
2.1.5. Testings ..............................................................................................................................................................................................................................12
2.2. MP sava3 Valve Block ...............................................................................................................................................................................................................14
2.2.1. Description of Valves ..........................................................................................................................................................................................................14
2.2.2. Unit operation .....................................................................................................................................................................................................................14
2.2.3. Hydraulic circuit (Valid for Standard and Y- D configurations) .........................................................................................................................................15
2.2.4. Valve adjustment ................................................................................................................................................................................................................15
2.3. MP sava3 Valve Block SOFT-STOP .........................................................................................................................................................................................16
2.3.1. Description of Valves ..........................................................................................................................................................................................................16
2.3.2. Unit operation .....................................................................................................................................................................................................................16
2.3.3. Hydraulic circuit MP sava3 + Soft-Stop ..............................................................................................................................................................................17
2.3.4. Valve adjustment ................................................................................................................................................................................................................17
3 • OIL COOLING DEVICE ...............................................................................................................................................................................................................18
3.1 Oil cooling device connections - Hydraulic power unit ...............................................................................................................................................................18
3.2. Oil cooler and thermal switch wiring..........................................................................................................................................................................................19
4 • TANK OIL HEATER .....................................................................................................................................................................................................................19
5 • MAINTENANCE ...........................................................................................................................................................................................................................19
5.1. Cleaning of the reutrn oil filter ...................................................................................................................................................................................................20
5.2. General checks..........................................................................................................................................................................................................................20
6 • CONTROLS ..................................................................................................................................................................................................................................21
7 • COMMISSIONING TEST RELATED TO UNINTENDED CAR MOVEMENT (UCM) AS PER EN 81-2 & EN 81-20 .................................................................22
7.1. Preliminary requirements ..........................................................................................................................................................................................................22
7.2. Failure simulation of the VB valve (Descent valve operated by the YD Electrovalve) .............................................................................................................22
7.2.1. Failure simulation of the VB valve in ascent ......................................................................................................................................................................22
7.2.2. Failure simulation of the VB valve in descent ....................................................................................................................................................................22
7.3. Failure simulation of the VD valve (Bypass valve operated by the YS Electrovalve) ...............................................................................................................23
7.4. Test of the monitoring system ...................................................................................................................................................................................................23
8 • COMMISSIONING WITH A PRESSURE OF 200% FULL LOAD, AS PER EN 81-2 AND EN 81-20. ......................................................................................24
A. APPENDIX • ACTIONS TO FACE MALFUNCTIONS ................................................................................................................................................................25
A1. Introduction ................................................................................................................................................................................................................................25
A2. Ascent ........................................................................................................................................................................................................................................27
A2.1. Start-up (the lift does not start)............................................................................................................................................................................................27
A2.2. Nominal speed (a slower speed than usual) .......................................................................................................................................................................29
A2.3. Levelling speed (does not function correctly) .....................................................................................................................................................................30
A3. Descent ......................................................................................................................................................................................................................................31
Start-up (the lift does not start) .....................................................................................................................................................................................31
A3.2. Nominal speed ....................................................................................................................................................................................................................31
A3.2.1. Speed slower than usual ..............................................................................................................................................................................................31
A3.2.2. Speed higher than usual...............................................................................................................................................................................................32
A3.3. Levelling speed (does not work or does not reach the correct speed) ...............................................................................................................................32
4. At floor ..........................................................................................................................................................................................................................................33
A4.1.The lift descends continuously .............................................................................................................................................................................................33
A4.2.The lift descends when loaded.............................................................................................................................................................................................34
A5. Miscellany ..................................................................................................................................................................................................................................34
A6. Electric Motors, Operating Instructions ......................................................................................................................................................................................36
V700 - 11/2017
3/40
MP sava3 Hidraulic Power Unit 1 ¼" 1 ½"
MTMECMPsava3_700_EN
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