4
A.0500.301/314.A – IM-TW/10.00 GB (0401)
1.3
Safety instructions
1.3.1
General
This information must be read carefully before installation, operation or servicing and
always readibly be available to the pump operator.
Instructions which can affect personal safety if not followed, are marked with this
symbol
Instructions to be considered for safe operations or to protect the pump/pump unit are
marked with this symbol
When ATEX pump/pump unit is supplied, the separate ATEX manual must be
considered
•
Incorrect installation, operation or maintenance of the equipment can cause serious
personal injury and/or damage to the equipment and will invalidate the warrenty.
•
Never operate the pump if the pump cover or suction and discharge pipework are
not in place. Likewise, never operate the pump if other protection such as coupling
and touch guards are missing or incorrectly fitted.
•
Never stick your fingers inside the rotor case, connections to the casing or in the end
cover if there is any possibility that the pump shafts may rotate. This can lead to
serious personal injury.
•
Do not exceed the pump’s maximum operating pressure, speed or temperature. Do
not modify the operating parameters/system for which the pump was orginally
delivered without first consulting Johnson Pump.
•
Pump installation and operation must always comply with prevailing health and
safety regulations.
•
Some sort of safety equipment should be connected to the pump, system or the drive
to prevent the pump from exceeding maximum allowable pressure. The safeguard
system must be configured to handle reverse flow where applicable.
Do not operate the pump with a closed/blocked discharge unless a safety relief valve
is incorporated. If an integrated safety relief valve is incorporated into the pump, do
not allow extended periods of recirculation through the relief valve.
•
The installation of the pump/pump unit must be sturdy and stabile. Pump orientation
must be considered with respect to drainage requirements. Once mounted, check the
alignment between the pump and the drive assembly. Misalignment of the pump,
drive and shaft coupling will result in unnecessary wear, increased operating tempe-
ratures and noisier operation.
•
Fill the pump’s and drive’s end cover with the recommended lubricants and
amounts. Change the lubricants at the recommended intervals.
•
Before operating the pump, make sure that it and the pipe system are clean and free
from debris and that all the valves in the suction and discharge pipelines are fully
opened. Make sure that all pipework connected to the pump is fully supported and
correctly aligned. Misalignment and/or excessive loads will cause severe damage to
the pump.
•
Make sure that the pump rotation is correct for the desired flow direction.
•
Do not install the pump into a system where it may run dry (i.e. without a supply of
pumped media) unless it is equipped with a flushed shaft seal arrangement, complete
with a fully operational flushing system.
•
Install pressure gauges/sensors in conjuction with the pump’s suction and discharge
connections to monitor the pump’s pressure.
