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Summary of Contents for OmarLift HI
- Page 1 OPERATING INSTRUCTIONS HI PUMP UNIT D860MGB rev04...
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Page 2: Table Of Contents
CHECK OF THE ROD COUNTER-PRESSURE AND HAND WORKING ........17 CHECK AND ADJUSTING OF THE HAND PUMP ................. 17 NOISE .............................. 17 6.10 MANOMETER SHUT-OFF ......................18 ADJUSTING AND TEST OF THE OMARLIFT RUPTURE VALVE ............18 GENERAL INFORMATION ......................18 D860MGB rev04... - Page 3 VALVE GROUP AND INVERTER’S PARAMETER CALIBRATION AND ADJUSTMENT ..... 18 GENERAL INFORMATION ......................18 HYDRAULIC SCHEME ........................19 ADJUSTING AND REGULATION OF “HI” VALVE GROUP ............20 OVER-PRESSURE VALVE CALIBRATION: SCREW N°1 ............. 20 ROD COUNTER-PRESSURE AND ROPE ANTI-LOOSENING CALIBRATION: SCREW N. 3 CALIBRATION OF THE HAND PUMP PRESSURE: SCREW N.
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Page 4: General Information Before Installing
These operating instructions are addressed to staff competent in installing, adjusting and maintenance operations on the hydraulic lifts. OmarLift does not take responsibility for any kind of damage caused by use different from the one hereby explained, lack of experience, carelessness by people assigned to the assembling, repair operations of the hydraulic components. -
Page 5: Cleaning
For the installation or the replacement of the hydraulic installation components, the following points have to be observed: Only use the material advised by OmarLift (especially the hydraulic oil) and the original OmarLift spare parts. Avoid the use of sealing materials such as silicone, plaster or hemp which could penetrate the hydraulic circuit. -
Page 6: Features Of The Machine Room
Rupture valve: plate fixed on the valve side. Pump unit: plate fixed on the tank cover. Flexible hose: test date, test pressure and manufacturer name engraved on the fitting. FEATURES OF THE MACHINE ROOM Before installing: Make sure that the shaft, pit, head and machine room correspond to the project data and respond to the regulations in force, and: Make sure that access ways allow the passage of the different components to be installed. -
Page 7: Inverter
STORAGE OF THE PUMP UNITS • Store the pump units in a dry place with a temperature between 5 and 30°C. • Control the protection packaging and replace it if necessary.. • If the pump units have to be stored for a long time, it is better to fill the tank with oil, at least until to cover the electric motor. - Page 8 has to be as reduced as possible. When a rigid pipe is used, please note that: • The pipe cut has to be perfectly at 90°. Figure 2 - "WALFORM" fitting • Possible bends have to be made when cold, using a proper pipe bending. •...
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Page 9: Electrical Connections
2” 2 x (1½” - Ø42) 2 x (1”½ - Ø42) 2” • Figure 3 - Connection with flex hose 2” Figure 4 - Connection with two rigid pipes Ø 42 4 ELECTRICAL CONNECTIONS GENERAL REGULATIONS Any electrical connection has to be carried out by trained and qualified staff, according to the specific regulations. -
Page 10: Electrical Connection Of The Three-Phase Motor
Figure 5 - Connection box for standard pump unit ELECTRICAL CONNECTION OF THE THREE-PHASE MOTOR The terminals of the motor are already fixed to the terminal block inside the connection box. • In case of a direct start of the motor, frequency and one tension of the motor have to correspond to the frequency and tension of the electrical power network. -
Page 11: Motor Protection With Thermistors
ELECTRICAL CONNECTION OF THE VALVE GROUP The HI valve (see Figure 8) entails the following electro-valves: • The EVD ELECTRO-VALVE controls normal downward travel. This electro-valve should be powered only during downward travel throughout the entire run. -
Page 12: Positioning Of The Shaft Switches For The Deceleration Distance
0,90 m ELECTRICAL GROUP INVERTER INTRODUCTION OmarLift uses an inverter which operates in open loop condition, with a special software for hydraulic lifts. It controls both the upward run and the downward run. You can achieve the following benefits: •... -
Page 13: Oil For Lifts - Circuit Filling And Air Purging
Follow the procedures in the manual of the inverter to not risk serious injury, to avoid the risk of damage the inverter and the correctly connect the power circuit. Do not power up the inverter without first making the connection to earth 5 OIL FOR LIFTS - CIRCUIT FILLING AND AIR PURGING CHARACTERISTICS The hydraulic oil is a very important part of the hydraulic installation. -
Page 14: Circuit Filling And Air Purging
For the oil cooling, systems with air or with water can be used. The types of oil fit to be used with the HI unit are the following: Oil type... - Page 15 If the rupture valve needs to be adjusted, carefully follow the operating instructions enclosed to it, or the directions in chapter 7 "ADJUSTING AND TEST OF THE OMARLIFT RUPTURE VALVE". 7) Reset the oil level in the tank, if necessary and make an upward travel at low speed, checking that all the parts of the installation are in order and that the oil quantity is sufficient.
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Page 16: Controls And Test
Figure 9 – Position of Screws for purge and for the rupture valve regulation 6 CONTROLS AND TEST After the assembling operations have been completed, after the oil has been filled and the air has been purged from the circuit, it is proper to make the following checks: CHECK OF THE OIL LEVEL IN THE TANK •... -
Page 17: Check Of The Rupture Valve Intervention
The regulation screw of the hand pump is on the left of the lever. If necessary, see instructions at point 8.3.3 for the regulation. NOISE The noise of OmarLift pump units is normally very low, especially during transistors (start / slowdown example). With average working conditions, when oil temperature is at 30/40°C and pressure at 25/30 bar, noise does not normally exceed the following values: •... -
Page 18: Manometer Shut-Off
7 ADJUSTING AND TEST OF THE OMARLIFT RUPTURE VALVE GENERAL INFORMATION The rupture valve is the hydraulic parachute assembled on the cylinder. It operates against the free fall or the down travel with an excessive speed. -
Page 19: Hydraulic Scheme
20 and 30°C. Figure 10 - Upward and downward speed diagram Figure 11 - Identification plate HYDRAULIC SCHEME Figure 12 - OmarLift HI valve: hydraulic circuit (without A3 device) D860MGB rev04 19/32... -
Page 20: Adjusting And Regulation Of "Hi" Valve Group
ADJUSTING AND REGULATION OF “HI” VALVE GROUP SCREW DESCRIPTION REGULATIONS N° 1 Adjusting of the max pressure valve screw to increase max pressure unscrew to decrease max pressure N° 3 Rod counter-pressure and rope anti- screw not to make the rod drop in emergency... -
Page 21: Calibration Of The Hand Pump Pressure: Screw N. 9
circuit, there is a remaining pressure higher than the pressure generated by the weight of the rod, the pulley and the ropes. This pressure is regulated by screw n. 3: screw, it increases; unscrew, it decreases. The value of the counter-pressure which opposes the rod down travel is about 6/8 bar •... -
Page 22: Calibration Of The Pressure Switches (Pressure Min. - Max. - Overload)
Act on screw n. 9 to adjust at the right pressure and activate the hand pump lever. The adjusting pressure of the hand pump is the max one reached and shown on the manometer. Discharge the pressure with the emergency hand button. CALIBRATION OF THE PRESSURE SWITCHES (PRESSURE MIN. -
Page 23: Inverter Setting And Programming
INVERTER SETTING AND PROGRAMMING Refer to the manual inverter supplied and / or to the manual of the manufacturer. 9 OPTIONAL ACCESSORIES OIL HEATING RESISTANCE (optional) The resistance to be installed in the tank to heat the oil is 500WATT powerful. Its feeding tension can be 220/230V - 50Hz or 380/400V - 50Hz. -
Page 24: Cooling System With Air
An incorrect sizing may result in inadequate oil overheating and malfunction in the system. COOLING SYSTEM WITH AIR The Figure 17 shows the connection diagram between pump unit and heat exchanger. The air heat exchanger has not to be put near the oil tank. The air heat exchanger has to suck fresh air and has to be put preferably near a window or an air passage connected to the outside. -
Page 25: Maintenance
10 MAINTENANCE GENERAL INFORMATION 10.1 Generally, the hydraulic components are not subject to a frequent wear, they are safe and need few maintenance operations. These results are reached when the components are chosen and dimensioned correctly on the basis of the installation characteristics. Moreover the hydraulic oil has to suit with the room temperature and the installation traffic conditions. - Page 26 If there are losses in the valve, pressure decreases rapidly, more than 5/6 bar during the first 3/4 minutes and goes on decreasing up to the static pressure value; The valve components which can be involved in possible losses are the following: Hand pump.
- Page 27 Close the main line shut-off, unscrew screw no. 3 (rod counterpressure) and press the manual emergency button in order to lower the pressure to zero. Unscrew the fixing screws of the block to inspect the ball seats. Remove the seeger which blocks the spring and the ball. Inspect the seats and if they appear grooved or faulty, attempt to repair them by repositioning the balls in their proper place and clinching them by using a proper punch.
- Page 28 Warning: do not hammer strongly because the seat is in aluminum, and may damage or break through. If possible, replace the balls used to clinch the seats. Reassemble all the components properly, reassemble the EVD valve in its seat, the pin and the coil. Reactivate the valve pressure by opening the shut-off valve and verify that there are no losses underneath the valve.
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Page 29: Air Presence In The Oil
Figure 22 - Replacement of seal VBP and cleaning of the filters AIR PRESENCE IN THE OIL 10.3 There is air in the oil in case of foam in the tank mainly during the down travel phase and in case the oil becomes whitish. -
Page 30: Electrical Anti-Creep System (Re-Leveling)
-The real working hours of a good oil, without the above mentioned factors, go from 3000 to 5000 max. about. These limits are however influenced by the two above mentioned factors. -Every year at least and however every 2000 working hours, check the oil preservation condition: smell, color, foam, dirt particles, etc. -
Page 31: Dimensions And Weights
PRESERVATION CLEANING OF THE SHUT-OFF VALVE AND 10.4 10.4 VALVE FILTERS CHECK OF THE PRESSURE AND ADJUSTING AT TWICE THE MAX STATIC PRESSURE CHECK OF THE RUPTURE VALVE WORKING CHECK OF THE ROPE ANTI-LOOSENING COUNTER-PRESSURE CHECK OF THE ELECTRICAL ANTI-CREEP 10.6 10.6 SYSTEM... - Page 32 OMARLIFT s.r.l. Via F.lli Kennedy, 22/D 24060 Bagnatica (BG) – ITALY Phone +39 035 689611 Fax +39 035 689671 Email: info@omarlift.eu Web: http://www.omarlift.eu...
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