7 Servicing/Maintenance
60 of 126
Amacan S
1589.837/01-EN
a
b
c
Fig. 32:
Draining the lubricant
a
Oil filler plug
b
Tube
c
Oil drain (903.02, 411.02)
The front face of pump casing 101 comes with
1 or 2 screw plugs
, depending on the
pump size.
Version with 1 screw plug
1. Remove screw plug 903.02 and joint ring 411.02.
2. Screw in a sufficiently long tube (b) with G
1
/
2
thread.
3. Carefully rotate the pump set until the tube points downwards.
4. Slowly lift the pump a little.
5. Collect the lubricant in a suitable container, determine its quantity and compare
it with the specified lubricant quantity (
ð
If more than 1.5 litres of lubricant are required for topping up, this suggests
a defect of the mechanical seal.
6. Properly dispose of the lubricant.
7. Remove the tube. Fit screw plug 903.02 (oil drain) and a new joint ring with
liquid sealant.
Version with 2 screw plugs
1. Move the screw plug 903.02 and joint ring 411.02 which are the furthest from
the shaft (oil drain) into upper position and remove them.
2. Screw in a sufficiently long tube (b) with G
1
/
2
thread.
3. Carefully rotate the pump set until the tube points downwards.
4. Remove the upper screw plug (oil filler plug). (For venting purposes)
5. Slowly lift the pump a little.
6. Collect the lubricant in a suitable container, determine its quantity and compare
it with the specified lubricant quantity (
ð
If more than 1.5 litres of lubricant are required for topping up, this suggests
a defect of the mechanical seal.
7. Properly dispose of the lubricant.
8. Remove the tube. Fit screw plug 903.02 and a new joint ring. Apply a liquid
sealant.
