Table of Contents
Advertisement
7 Servicing/Maintenance
7.3.5 Checking the mechanical seal for leakage
WARNING
Fluids handled, consumables and supplies which are hot and/or pose a health
hazard
Hazard to persons and the environment!
▷ Collect and properly dispose of flushing fluid and any fluid residues.
▷ Wear safety clothing and a protective mask if required.
▷ Observe all legal regulations on the disposal of fluids posing a health hazard.
WARNING
Excess pressure inside the pump set
Risk of injury when opening the pump set!
▷ Take care when opening the inner chambers. Equalise the pressure.
NOTE
Slight wear of the mechanical seal is unavoidable. This will be aggravated by
abrasive substances contained in the fluid handled.
Checking the leakage chamber serves to assess the function of the drive-end
mechanical seal.
FD
903.02
411.02
Fig. 29: Checking the leakage chamber
Table 13: Symbols key
Symbol
Description
Always apply a liquid sealant (e.g. Hylomar SQ32M) to sealing surfaces
FD
marked with this symbol.
ü A suitable container for the leakage is on hand.
ü The pump set is positioned horizontally on a level surface and is protected
against rolling off.
1. Place the container underneath screw plug 903.02.
2. Remove screw plug 903.02 and joint ring 411.02.
3. Screw in a sufficiently long tube (1) with G 1/2 thread.
4. Carefully rotate the pump set until the opening of the leakage chamber points
downwards.
ð If there is no leakage or, after several years of operation, only a small
amount (less than 0.3 litres), the mechanical seals are working properly. If the
leakage exceeds 0.3 litres, the mechanical seals are defective and must be
replaced.
5. Unscrew the tube (1).
6. Re-insert and tighten screw plug 903.02 with new joint ring 411.02.
Amacan P
1
55 of 112
Advertisement
Table of Contents
