DROPSA Cannon Hydraulic Pump Manuale d'uso e manutenzione - Pagina 5
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6.2 INSTALLATION
Allow sufficient space for the installation, leaving minimum 100 mm (3.94 in.) around the pump.
Place the pump at shoulder height to avoid an unnatural posture or possibility of sustaining impacts.
Hyd-min PUMP must be installed vertically inserting the shank into the grease barrel until it reaches the bottom of the drum.
It is possible to use the threaded fixing lockring for mounting in a 2" threaded hole (standard for trade drums). To adjust the
hole height is enough unscrew the grains radially existing at the lockring, placing them at desired height and tighten the grains
previously unscrewed. The fixing lockring is equipped by gasket for pressurize the tank (see reservoir features).
Purchasing separately the pump and the follower plate with cover, is necessary to remove the fixing lockring by the stem, insert
the cover and follower plate in the correct direction ( lip seal upward) and then insert the limit ring at the stem extremity.
WARNING: When using a grease follower plate, it is recommended to check for crushes on drum sides which
could prevent the follower plate from descending into the barrel. Use only intact drums with no defects.
6.3 HYDRAULIC CONNECTIONS
Ensure that all pipes and fittings are suitable for the pressure and the fluid used and connect the oil supply to the pump
hydraulic cylinder and the flow barrel pump to the system.
The user may opt to use the following hydraulic changeover valves:
Valves usually used are:
•
Automatic hydraulic change-over: when
the direction of the oil from P-A to P-B and vice-versa (as a diagram show in Paragraph 2).
•
Electrical Inverter: the electrically controlled valve switches the flow of oil from P-A to P-B and vice-versa. The user must
not use a operating frequency less than 0.5 sec per change-over.
Always ensure the integrity of pipes and fittings before operating the pump.
Contact Dropsa for technical items regarding the type of valve to be used.
7. INSTRUCTIONS FOR USE
7.1
ACTIONS TO BE MADE BEFORE STARTING
•
The unit should be operated only by qualified personnel.
•
The pump should never be used in hazardous environments or immersed in any fluids.
•
Always use safety gloves and glasses when handling lubricants.
•
Do not use lubricants that may contains substances incompatible with NBR Rubber, if in doubt consult the Dropsa
technical department which will provide a detailed documentation about lubricants recommended.
•
Follow all health and safety rules required by law.
•
Always use pipes suitable for operating pressures.
•
Check the integrity of the pump; ensure there is no physical damage.
•
Check that pump pressure supply is correct.
•
Fill the Oil reservoir with suitable lubricant.
•
Ensure that the pump is within the specified ambient temperature.
•
Check electrical and hydraulic connections have been carried out correctly.
7.2 PUMP USE
•
Switch on the pump by pressing the start button on the control system in use;
•
Check that the pump is running;
•
Adjust the pressure by pass to the desired setting;
•
Verify that lubricant is correctly dispensed the lubrication system is functioning correctly.
the pilot pressure of the valve is reached point the valve automatically switches
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