Dellmeco DME 15 R Series, Instruction Manual

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9I DELLMECO I EODD DIAPHRAGM PUMPS
4.3. Safety instruction to certain operation stages
Transportation
Use only lifting devices and weight handling fixtures that:
- are appropriate or prescribed,
- possess sufficient load-carrying capacity,
- are technically faultless.
Only experienced persons may fasten weights and instruct crane operators. A competent instructor must be within
operator's visual range or in speaking contact with him.
Before transporting heavy machine parts in buildings, make sure that the load-carrying capacity of the building is
sufficient along the entire transportation route.
Mounting
Works on piping may only be carried out by authorized professional personnel, as an improper mounting or
disassembly of piping may cause cracks.
Remove shipping fasteners for immediately before installation of individual parts.
Fastening elements and gaskets are mainly disposable elements. They must be replaced at every mounting
operation, otherwise the fastening or sealing function is not guaranteed anymore. Immediately dispose used
fastening elements and gaskets in accordance with current regulations, to avoid confusion with new ones.
Putting in operation
Before putting in operation, make sure that nobody can be put in danger by the pump to be started up.
Perform prescribed inspections and tests.
Operation
Operate the installation only when all protective devices and safety devices, e.g. removable protective devices,
emergency switch, soundproofing elements or exhaust devices, are available and serviceable.
Do not touch hot surfaces - some
units of the DME Diaphragm Pump may become hot during operation and cause
burns.
Wear hearing protection devices when staying at the running pump. Otherwise, there’s a risk of hearing damage
through DME Diaphragm
Pump’s operation noise.
Immediately bring the DME Diaphragm Pump to a standstill if you have noticed unusual changes in
operating behavior, which you cannot interpret.
Completely switch off the DME Pump (including voltage supply) before any maintenance or repair works and protect
it against unauthorized or accidental restart. Wait until the DME Pump comes to a complete standstill and remove
safety devices only after that.
Carry out prescribed tests during standstill and keep records of them.
When using solvents to remove grease or lubricants, you must ensure sufficient supply of fresh air, due to some
solvents develop vapors that are harmful for health.
DME pumps are characterized by a particularly compact and robust design. Although a considerable number of
components, the pump is very service friendly and easy to install and to connect. To be installed, the pumps need
no additional components such as e.g. a ground plate. Pipe connections can be rotated 180 degrees, which
provides a high degree of flexibility.
Pumps are protected against dry operation and self-sucking. DME pump cannot be damaged even by operation
without medium for a long period of time. To suck, the pumps
don’t have to be filled, they can suck dry.
Due to a linear characteristic curve and electric drive, pump capacity can be frequency-regulated (variable frequency
drive unit required) from 70 % (with additional cooling system, option ACS) to 140% (at 50 Hz it gives a scope of
regulation from 35 to 70 Hz). When used with various drive units, the pump work does not depend upon the direction
of rotation of the relevant engine and develops full capacity in both directions of rotation.
Due to a computer-aided design of the pumps, internal pump spaces and valves are shaped so as to achieve a high
efficiency. A high value has also been put on easy maintenance and handling.