Armstrong 4280 Series Manuale di installazione e istruzioni per l'uso - Pagina 7
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warning:
Whenever any service work is to be performed on
a pumping unit, disconnect the power source to the
driver, lock it off and tag with the reason. Any pos-
sibility of the unit starting while being serviced must
be eliminated.
• If mechanical seal environmental accessories are
installed, ensure water is flowing through the sight
flow indicator and that filter cartridges are replaced as
recommended. (See Armstrong files 43 . 85 & 43 . 86 for
seal environmental instructions).
caution:
Under no circumstances should the pump be used
for flushing out the system. In line with cibse
commissioning code W: 1994, the pump should be
out of line or bypassed during flushing.
6.
lubrication
Pump
Not required – there are no bearings in the pump.
Motor
• Follow the lubrication procedures recommended by the
motor manufacturer. Many small and medium sized
motors are permanently lubricated and need no added
lubrication. Generally if there are grease fittings evident
the motor needs periodic lubrication. None if not.
• Check the lubrication instructions supplied with the mo-
tor for the particular frame size indicated on the motor
nameplate.
Mechanical Seal
• Mechanical seals require no special attention. If leakage
occurs investigate the cause and replace the seal
following the makers recommendations, then realign the
pump and motor shafts.
• Do not run the pump unless properly filled with water as
the mechanical seals need a film of liquid between the
faces for proper operation.
• Mechanical seals may 'weep' slightly at start-up. Allow
the pump to continue operating for several hours and
the mechanical seal to 'seat' properly prior to calling for
service personnel.
caution
Do not use oil, Vaseline or other petroleum or silicon
based products for seal elastomer lubrication.
Series 4280
motor mounted pump
Otherwise elastomer swelling may occur, causing seal failure.
Recommended: International Products Corp p-8 0 Rubber
Lubricant Emulsion in www.ipcol.com
caution
The permissible tds levels are :
a SSiC Vs C – 2000ppm max
b SSiC Vs SSiC – 40 0 0ppm max
In case the water exceeds permissible tds levels, corrosion
or fouling may occur resulting in seal failures. It is necessary
to maintain the water quality with proper water treatment
program.
7.
system cleanliness
• Before starting the pump the system must be thoroughly
cleaned, flushed and drained and replenished with clean
liquid.
• Welding slag and other foreign materials, Stop Leak and
cleaning compounds and improper or excessive water
treatment are all detrimental to the pump internals and
sealing arrangement.
• Proper operation cannot be guaranteed if the above
conditions are not adhered to.
caution:
Under no circumstances should the pump be used for flushing
out the system. In line with cibse commissioning code W:
1994, the pump should be out of line or bypassed during
flushing.
note:
Particular care must be taken to check the following
before the pump is put into operation:
a
Pump primed?
b
Rotation OK?
c
Lubrication OK?
d
Pipework properly supported?
e
Voltage supply OK?
f
Overload protection OK?
g
Is the system clean?
h
Is the area around the pump clean?
warr anty
Does not cover any damages to the equipment resulting from
failure to observe the above precautions. Refer to Armstrong
General Terms and Warranty sheet. Contact your local
Armstrong representative for full information.
instal l a t io n &
o per ati ng instr uct io n s
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