Approvals (Cfmus); Servicing And Maintaining The Product - Grundfos SE Instrucciones De Instalación Y Funcionamiento

7.5 Approvals (cFMus)

The SE, SL 12-42 hp (9-30 kW) pumps have been approved by
FM, and the explosion-proof versions hold an FM-type
examination certificate No FM16US0410X and FM16CA0187X.
Approval standards
These pumps have been approved by FM according to CSA-
C22.2 0.4: R2013, 100: 2014, 145: 2015, and 60529: R2010, and
FM: 3600: 2011, 3615: 2006, FM 3650: 2013, and ANSI/IEC
60529: 2014.
Explanation of FM approval
The SE, SL pumps have the following explosion-protection
classification: Class I, Division 1, Groups C and D, T4, T3C*, IP68
with an ambient temperature rating of -4 to 104 °F (-20 to +40°C).
Standards Code
Class I =
Division 1 = Area classification
FM 3600 Groups C
= Classification of gases
FM 3615 and D
FM 3650
ANSI/IEC 60529
T4/T3C* =
IP68 =
* When used with a converter.

8. Servicing and maintaining the product

Pumps with inlet flange A40 (DN 100) or A60 (DN
150) (pressure versions S and H) in upright position
do not fulfil the stability requirement of standard EN
809 (stable when tilted to an angle of 10 degrees).
Use a service stand to support the pump.
Product numbers for service stand
Inlet flange size A40 (DN 100): 98669229.
Inlet flange size A60 (DN 150): 98669251.
WARNING
Pump can tilt
Death or serious personal injury
- During maintenance and service, including
transportation to service workshop, always support
the pump by means of lifting chains or place it in
horizontal position to secure stability.
DANGER
Electric shock
Death or serious personal injury
- Before starting any work on the product, make
sure that the power supply has been switched off
and that it cannot be accidentally switched on.
The maintenance and service work on explosion-
proof pumps must be carried out by Grundfos or a
FM
service workshop authorized by Grundfos.
Do not open the pump if the ambient atmosphere is
FM
explosive or dusty.
Maintenance and service must be carried out by specially trained
persons.
Description
Explosive atmosphere caused
by gas or vapors
Maximum surface temperature
is 275 °F (135 °C) and 320 °F
(160 °C)
Enclosure class according to
IEC 60529
Before carrying out maintenance and service, make sure that the
pump has been thoroughly flushed with clean water. Rinse the
pump parts in water after dismantling.
Pumps running normal operation should be inspected every 2000
operating hours or at least once a year. If the pumped liquid is
very muddy or sandy, the pump should be inspected every 1000
operating hours or every six months.
Check the following points:
• power consumption
• motor-liquid level.
When the pump is new or after replacement of the shaft seals,
check the motor-liquid level and its water content after one week
of operation. If the motor-liquid level has dropped, the shaft seal
may be defective. See section
8.1.1 Checking the motor
Dispose of the motor liquid in accordance with local
regulations.
Number of poles
2 13.5 (12.8)
4 13.5 (12.8)
6 14.9 (14.1)
• Cable entries
Make sure that the cable entries are waterproof and that the
cables are not sharply bent or pinched. See section
4.2.1 Cable data.
• Impeller clearance
Check the impeller clearance. See section
impeller clearance.
• Pump parts
Check the pump housing etc. for possible wear. Replace
defective parts.
• Ball bearings
Check the shaft for noisy or heavy operation (turn the shaft by
hand). Replace defective ball bearings. A general overhaul of
the pump is usually required in case of defective ball bearings
or poor motor function. This work must be carried out by an
authorized service workshop.
Replace the ball bearings at least every 36,000
FM
operating hours.
liquid.
Quantity of motor liquid
SE SL
[qt (l)] [qt (l)]
4.7 (4.5)
4.7 (4.5)
5.7 (5.4)
8.2.1 Adjusting the
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