22
10. Clean all stainless steel parts with a clean cloth and if necessary some acetone. Check
if the O-rings are still in good condition and replace if necessary.
11. Reassemble motor to base and motor adapter to motor if necessary.
12. Submerge the station ary part of the mechanical seal in the 5 % soap solution and
press it with your hands in the front side of the backplate. Apply an equally spread
pressure and press it completely into place.
13. Submerge also the rotating part of the same seal in the soap solution and slide it on
the shaft (sealing face away from the vanes). Clean both sealing faces with a clean cloth.
14. Put the key in the shaft and slide the impeller onto the shaft. Be careful the key fits
in the keyway in the impeller and the rotating part of the mechanical seal re mains on its
seat.
15. Fasten the impeller screw.
16. Replace the casing O-ring and pump casing (1). Fasten the bolts.
Seal replacement with damaged rotary o-ring
1. The upper part of the S-2 rotary is a pressed fit to the impeller shaft. A bearing puller
may be used, or a tool available from Goulds Pumps may be purchased.
2. If using the Goulds Pumps tool, place the tool over the end of the impeller shaft,
align the set screw with the holes in the seal sleeve and tighten them.
3. Use a 1/2-13 bolt through the front of the impeller to drive against the base of the
tool and remove the seal sleeve.
4. To install a new seal sleeve on the impeller, use an arbor press to push the sleeve up
the impeller shaft until the o-ring seats against the base of the impeller.
VII. Troubleshooting
Overview
This section provides a chart of potential problems along with their probable cause and
remedies which will correct the problem.
Warning
Disconnect and lockout electrical power before attempting any maintenance. Failure to
do so can cause a shock, burn or death.
Failure
Possible cause
Solution
There is no suction
Wrong direction of rotation
×
Valve in suction line or pres
×
sure line closed
Synthetic plugs are still in
×
inlet or outlet
Insufficient de-aeration
×
Change two terminals
×
Open valves
×
Remove plugs
×
Deaerate better
×
Open all valves completely,
×
decrease pressure in dis
charge vessel, make provi
sions so that no liquid
column can be built up on
the outlet of the pump
Summary of Contents for GSP Series
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