Stenner Pumps S Serie Manual De Instalación Y Mantenimiento página 95

S50 TUBE REPLACEMENT
Rollers
Guide Rollers
A
B
C
D
S Series FW 4.01.02 US and Canada 800.683.2378, International 904.641.1666 www.stenner.com
PREPARATION
1. Follow all safety precautions prior to tube replacement.
2. Prior to service, pump water or a compatible buffer solution through
the pump and suction and discharge lines to remove chemical and
avoid contact.
3. Identify rollers and guide rollers in the roller assembly A.
REMOVE THE PUMP TUBE
PINCH POINT Pump rollers are a pinch point
risk. Tube installations must use tube pull. Keep fingers away from
roller assembly while pump is on.
1. Disconnect the input signal.
2. Depressurize and disconnect suction and discharge lines.
3. Set pump to Manual mode and set speed to 10%.
4. Press ON/OFF button to rotate roller assembly until one guide
roller is aligned with the center of the pump head support. B
5. Unscrew thumbscrews and remove tube housing cover. Set aside
to reinstall later.
6. Remove pump head support. Replace if worn or damaged. Set
aside to reinstall later. C
7. Turn pump on and close control panel cover.
8. Hold pump securely with one hand. With other hand, lift the tube
fitting out of the suction slot in the tube housing. D
9. Walk tube out while roller assembly slowly rotates. Discard
pump tube.
10. Turn pump off and close control panel cover.
11. Remove and inspect the roller assembly. If rollers are seized, worn,
or if there is a reduction or lack of output from the pump, replace.
12. Use a non-citrus all-purpose cleaner to clean chemical residue
from tube housing, roller assembly, pump head support and cover.
13. Check housing and cover for cracks. Replace if cracked.
14. Lightly apply AquaShield
15. Reinstall roller assembly.
95
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along the entire shaft.