background image

 

WIL-IO-SP-WCC28001-11 

 

To clear a pump clogged with debris, first, 

UNPLUG PUMP 

from electrical power. Then referring to 

Picture 2 

below, 

unscrew the stainless screws #1, then the volute #5, and the seal gasket #4. Use a flathead screwdriver to hold 

the shaft #2 then turn the impeller #3 counter-clockwise to release the impeller. Remove debris from around the 

shaft and on and under the impeller. Then reassemble the impeller, gasket, volute, See 

Picture 2. 

 

10.

 

TROUBLESHOOTING                                                                       

 

Do not disassemble the motor housing. This pump has NO repairable internal parts, and disassembling may cause an oil leak 

or dangerous electrical wiring conditions. 
 

 

Picture 2 

No. Description 

Qty 

1 Screw 

2 Shaft 

3

Impeller 1

4

Gasket 

1

5

Pump body 

1

Summary of Contents for WCC28-20.50

Page 1: ...Wilo SP Series Submersible Sewage Pumps WCC WCC28 20 50 Installation and operating instructions...

Page 2: ...plosion or fire resulting in serious personal injury or death and or property damage 3 SPECIFICATIONS Power supply required 115V 60 HZ Water temperature range Max 131 F 55 C Individual branch circuit...

Page 3: ...t the pump DIRECTLY to a grounded GFCI outlet 8 Extension cords may not deliver sufficient voltage to the pump motor Extension cords present a life threatening safety hazard if the insulation becomes...

Page 4: ...he pump is not running Check valve should be a free flow valve that will easily pass solids NOTICE For best performance of check valve when handling solids do not install it with discharge angled more...

Page 5: ...e water lowers to certain level the float switch will turn off the pump 3 The motor is equipped with an automatically resetting thermal overload protector If the motor gets too hot the overload protec...

Page 6: ...n turn the impeller 3 counter clockwise to release the impeller Remove debris from around the shaft and on and under the impeller Then reassemble the impeller gasket volute See Picture 2 10 TROUBLESHO...

Page 7: ...er the pump cover and the float switch turns upside down 10 Reposition the pump and make sure switch moves freely Pump operates but pumps little or no water 1 Debris caught in impeller or pipe 2 Check...

Page 8: ...a com Web www wilo usa com Wilo Canada Inc Bay 7 2915 10th Ave NE Calgary AB T2A 5L4 Tel 866 945 6236 Fax 403 277 9456 Email info wilo canada com Web www wilo canada com Wilo Mexico Managua No 978 Col...

Reviews: