Summary of Contents for ACF INDIA MARK II
- Page 1 ( ) - Uganda Mission INDIA MARK II Installation and Maintenance Manual for Hand Pump Technicians and Borehole Caretakers ACF - WASH September 2010...
- Page 2 Borehole hand pumps use human power and mechanical means to move water in a one-way direction using a system of suction and discharge valves. The most common model of pump used in the region is the India Mark II hand pump originally manufactured in India by Apex Press.
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Page 3: Chain,
Maintain tools and a stock of spares to enable him/her to have a capacity to carry out repairs during routine maintenance visits and when called for hand pump repairers The India Mark II Pump—Major Components The Handle Assembly – This is a long lever, which is connected to a piston in the pump (Pump Cylinder) that draws water up to the tap (spout). - Page 4 Bolt, nut, washer & check nut Pedestal Platform PVC Casing Pipe Riser Pipe Figure 1: Above ground parts of the India Mark II borehole assembly. Connecting Rod The below ground details are not included here but will be illustrated next page, in Figure 2.
- Page 5 Below Ground Pump Cylinder Figure 2: Pump cylinder for the India Mark II. This is the pump cylinder, which is set in the aquifer deep underground. The depth that a pump is set is based on the desired yield rates (flow rates). A minimum yield of 0.8-2.0...
- Page 6 Long-term maintenance of rural water boreholes therefore has be- come the most challenging task for governments and humanitarian aid organizations. In re- sponse to this, ACF will work with beneficiaries to educate communities on proper mainte- nance schedules for community boreholes.
- Page 7 The tool set for maintaining the India Mark II Pump (Refer to the U2 and U3 installation manuals) Tool Picture Pipe/rising mains For lifting or lowering the lifting spanner rising mains Pipe vice, self locking For holding the pipes firm...
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Page 8: Ball Bearing
The tool set for maintaining the India Mark II Pump (Refer to the U2 and U3 installation manuals) Tool Picture Rod lifter For lifting and lowering the rods File For filing the top of connect- ing rods after cutting Hammer ball point For driving out/in the handle axle bolt. - Page 9 Repair and Rehabilitation Procedures For installing or dismantling a borehole, at least two trained people are required to oversee and guide the unskilled labour force. The technicians should ensure that they have a com- plete tool box with all the required tools for installing / dismantling including an extension rod of about 30-50cm length.
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Page 10: Axle Nuts
75 metres General Maintenance Guidelines The India Mark II deep well hand pumps are to be properly maintained to ensure safe pota- ble drinking water to the community, without break down. Proper and regular maintenance will prevent breakdowns as seen earlier in the booklet. The moving parts in the India Mark II... -
Page 11: Bearing Spacer
2) After 365 days (1 year) (a) Examine the pump carefully and check whether: Discharge is satisfactory (ii) Handle shaky and not firm (iii) Guide bush has excessively worn out (iv) All bolts, nuts and washers are in position (v) Chain has worn out (vi) Roller chain guide is excessively worn out (b) Overhaul the pump and follow the instructions: If chain, bearing spacer are damaged, replace them... - Page 12 PRICES OF SOME OF THE MAJOR BOREHOLE SPARES PARTS Item Unit Price (UgX) Pump Head Complete 150,000 Pump Handle 90,000 Chain 15,000 Ball Bearing 25,000 Water Tank 90,000 Cylinder Complete 250,000 Head Bolts 1,000 Head Nuts 1,000 Sealing Rings 2,000 Upper Valves Complete 20,000 Pump Buckets...
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Page 13: Sealing Rings
THE TROUBLE SHOOTING TABLE FOR COMMON PROBLEMS SIGN/DEFECT/INDICATION POSSIBLE CAUSE(S) REMEDY Draws rusty water Pipes and the rods corrosions Free the pipes and rod from corrsion Chemistry of water problems by developing/flushing the well. Pumped water containing Damaged casing Chlorinate the well worms Improper sanitary seal Improve on the BH design.
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