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Ideas at Work (IaW)
#5, Street 21,
Tonle Bassac,
Phnom Penh
THE 'ROVAI' POND PUMP - RP6
MAINTENANCE MANUAL
(The Cambodian version of the Rope Pump)
OPERATION AND
V. Whitehead, March 2008
Phone : +855 (0)23 350 911
Mobile : +855 (0)12 593 973
Mobile : +855 (0)12 700 482
Email : info@ideas-at-work.org
Web
: www.ideas-at-work.org
(Khmer)
(Eng)
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Table of Contents
Summary of Contents for Ideas at Work ROVAI
- Page 1 #5, Street 21, Mobile : +855 (0)12 700 482 (Eng) Tonle Bassac, Email : info@ideas-at-work.org Phnom Penh : www.ideas-at-work.org THE ‘ROVAI’ POND PUMP - RP6 (The Cambodian version of the Rope Pump) OPERATION AND MAINTENANCE MANUAL V. Whitehead, March 2008...
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Page 2: Table Of Contents
This Rovai pond pump manual may also be useful to village chiefs, water user group staff or project managers when setting operation and maintenance training for pump caretakers. -
Page 3: The Main Components Of The Rovai Pond Pump
4. Cement cover 5. Adjustable pipe clamp 6. Pump frame 7. Protection pipe Figure 1 Main components of the Rovai Pond pump's upper parts 8. Rope & pistons 9. Ceramic guide 10. Outlet pipe 11. Upper guide box 12. Frame bolts (x4) Figure 2 Details of the Rovai pond pump’s outlet assembly... - Page 4 -------------------------------------------------------------------------------------- The Rovai pond pump The Rovai pond pump is designed to lift water from sources such as ponds, lakes and very slow moving rivers. The pond pump is similar to the standard Rovai (used on hand dug wells and tube wells) and uses many of the same parts, but there are two distinct differences: •...
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Page 5: Operating The Pond Pump
Spares/tools kit A ‘spares/tool kit’ is available from the manufactures of the ‘Rovai pumps’. It is recommended that one of these is made available to the person responsible for maintaining the pump. Below is a list of items that will be needed help maintain the pump, §... -
Page 6: General Maintenance & Care
NOTE: it is much easier to replace a rope that is still working, but worn, than one that has broken and fallen down the pipes!! So check this frequently. Ideas at Work/Pond pump O&M manual/Rev 1/ Mar 08/Eng Page 6 of 17... -
Page 7: How To Tie The Knot In The Rope
If the water is very dirty this may need doing more often. 1) Remove the four screws from the corners of the wheel cover (1) Ideas at Work/Pond pump O&M manual/Rev 1/ Mar 08/Eng Page 7 of 17... - Page 8 Put the 1.5m upper guide box end on a clean area of ground preferably with some plastic sheets to keep the pipes and rope clean. Ideas at Work/Pond pump O&M manual/Rev 1/ Mar 08/Eng Page 8 of 17...
- Page 9 Ideas at Work/Pond pump O&M manual/Rev 1/ Mar 08/Eng Page 9 of 17...
- Page 10 Slowly turn the handle to check that the rope is free to move all the way through the pipe. h) finally refit the wheel cover on the pump with the 4 screws and nuts on each corner back Ideas at Work/Pond pump O&M manual/Rev 1/ Mar 08/Eng Page 10 of 17...
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Page 11: Changing The Rope And Pistons
The pistons should be placed 1m distance apart from the next piston. Make sure all the pistons face the same way. Ideas at Work/Pond pump O&M manual/Rev 1/ Mar 08/Eng Page 11 of 17... -
Page 12: Replacing A Rope That Has Broken
A new rope fitted with pistons (unless the broken rope can be refitted) 1. Take the wheel cover off by removing the four nuts and bolts at each corner (1a) Ideas at Work/Pond pump O&M manual/Rev 1/ Mar 08/Eng Page 12 of 17... - Page 13 30m long with a weight on the end and drop this down the riser pipe (largest hole in the upper guide box). Ideas at Work/Pond pump O&M manual/Rev 1/ Mar 08/Eng Page 13 of 17...
- Page 14 Tie two ends of rope together 8. Refit the pipes into the protection pipe by lowering the bottom guide box into the pipe as shown opposite. Ideas at Work/Pond pump O&M manual/Rev 1/ Mar 08/Eng Page 14 of 17...
- Page 15 (b). 13. Pull the rope and thread it round the wheel as shown then tie the two ends together as described on page 7. Ideas at Work/Pond pump O&M manual/Rev 1/ Mar 08/Eng Page 15 of 17...
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Page 16: New Pistons
28.5-29mm 20mm Ø6mm 20mm Figure 3 Modified 21mm PVC screwed end caps (top and bottom view) Ideas at Work/Pond pump O&M manual/Rev 1/ Mar 08/Eng Page 16 of 17... -
Page 17: Care Of The Paintwork
If a spares box, or tool box, has been purchased for the pump this manual should be kept inside that box as well. Ideas at Work/Pond pump O&M manual/Rev 1/ Mar 08/Eng Page 17 of 17...