KSB Filtra 18 D [27/36] Filtra n

7 Servicing/Maintenance

27 of 36

Filtra N

7.5.4 Dismantling the mechanical seal

433

173

412.04

Fig.11: Dismantling the mechanical seal

ü The impeller has been removed. (ðSection7.5.3,Page26)

1. Remove mechanical seal 433.

2. Remove O-ring 412.04 from diffuser wall 173.

7.6 Spare parts stock

7.6.1 Ordering spare parts

Always quote the following data when ordering replacement or spare parts:

▪ Type series

▪ Size

Refer to the name plate for all data.

Also specify the following data:

▪ Quantity of spare parts

▪ Part number and description

▪ Shipping address

▪ Mode of dispatch (freight, mail, express freight, air freight)

7.6.2 Recommended spare parts stock for 2 years' operation to DIN24296

Table6: Quantity of spare parts for recommended spare parts stock

Part No. Description Number of pumps (including stand-by pumps)

2 3 4 5 6 8 10 and

321 Rolling element bearing 1 1 1 2 2 2 20 %

433 Mechanical seal 1 1 1 2 2 2 20 %