Armstrong 4039 Series Instrukcja instalacji i obsługi - Strona 5
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6.
GENERAL CARE
Series 4039 pumps are built to operate without periodic maintenance. A systematic inspection made at regular
intervals will ensure years of trouble-free operation, give special attention to the following:
Keep the unit clean
Provide the motor with correctly sized overload protection
Keep moisture, refuse, dust or other loose particles away from the pump and ventilating openings of the motor
Avoid operating the unit in overheated surroundings (Above 40ºC/100ºF).
Check pulley belt tensions every six months or as duty conditions demand.
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 possibility 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.
7.
LUBRICATION
Pump
Sealed Grease Bearings
If the pump is fitted with greased lubricated bearings, no external lubrication is required.
These bearings are custom greased for general service applications and sealed.
Oil Lubricated Bearings
If the pump is fitted with oil lubricated bearings; use a non-detergent oil equal to No.10 motor oil.
Prior to start up check to make sure the oil level is visible in the sight glass.
Under normal operating conditions the oil should be changed every year or 3000 hours as follows:
a)
Drain the oil from the old bearing bracket.
b)
Thoroughly flush the bearing bracket with Kerosene.
c)
Refill the oil through the vent on top of the bracket until the oil level is visible in the middle of the sight glass.
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 motor 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.
8. 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.
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