Special Service Tools; Servicing The Product; Servicing Grundfos Pumps With Explosion-Proof Motors; General Information - Grundfos SE1 50 Series Service Instructions Manual

7.4 Special service tools

H
Service sledge Service bracket
Pump type
SE1.50.65.22/30.2
SE1.50.65.40.2
SE1.80.80.15/22.2
SE1.80.80.30/40/55.4
SE1.80.80.75.4
SE1.80.100.15/22.2
SE1.80.100.30/40/55.4
SE1.80.100.75.4
SE1.100.100.40/55.4
SE1.100.100.75.4
SE1.100.150.40/55.4
SE1.100.150.75.4
SEV.65.65.22/30.2
SEV.65.65.40.2
SEV.65.80.22/30.2
SEV.65.80.40.2
SEV.80.80.11/13/15/22.4
SEV.80.80.40.4
SEV.80.80.40/60/75.2
SEV.80.80.75.4
SEV.80.80.92/110.2
SEV.80.100.11/13/15/22.4
SEV.80.100.40.4
SEV.80.100.40/60/75.2
SEV.80.100.75.4
SEV.80.10.110.2
SEV.100.100.40/60.4
SEV.100.100.75.4
* Only for pumps for horizontal installation.
I
Part number
H I
98827089 98902621
98827090 98902623
98902585 98902622
98902603
98902625
98827091
98902585 98902622
98902603
98902625
98827091
98902607 98902626
98902609 98902630
98902607 98902626
98902609 98902630
98902585 98902622
98902602 98902625
98902585 98902622
98902602
98902589 98902622
98902603
98902625
98827091
98902628
98902589 98902622
98902603
98902625
98827091
98902628
98902606 98902625
98902608 98902628

8. Servicing the product

Service must be carried out by specially trained persons.
Before carrying out service, make sure that the pump has been
thoroughly flushed with clean water. Rinse the pump parts in
water after dismantling.
8.1 Servicing Grundfos pumps with explosion-proof
motors
Only Ex-approved service centres are allowed to intervene in the
flameproof enclosure pump. Service not affecting the explosion
protection of the pump and not violating the Ex regulations may
be carried out by service persons who are not Ex-authorised.
*
Consequently, these persons are allowed to replace the following
parts of explosion-proof pumps:
• pump housing
• impeller
• seal ring and wear ring
• shaft seal.
All other service work must be carried out by an authorised Ex-
approved service centre. Violation of this requirement will
invalidate the Ex classification of the pump.

8.2 General information

Position numbers of parts (numbers in brackets) refer
to section 12. Drawings.
Position numbers of tools (letters in brackets) refer to
section 7. Service tools.
DANGER
Electric shock
Death or serious personal injury
- Before starting work on the pump, make sure that
the fuses have been removed or the mains switch
has been switched off.
- Make sure that the power supply cannot be
accidentally switched on.
WARNING
Crushing of hands
Death or serious personal injury
- Make sure that all rotating parts have stopped
moving.
WARNING
Crushing hazard
Death or serious personal injury
- At all times during service, make sure to secure
the pump against rolling over, e.g. by placing a
wooden wedge on either side of the pump.
Except for replacement or dismantling of pump
housing, shaft seal, impeller, seal ring and wear ring,
all other service work must be carried out by
Grundfos or an Ex-approved service centre.
7