background image

 

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 

cubic meters per hour is usually targeted. One cubic meter is equal to 1000 liters. 

Figure 2: Pump cylinder for the  
     India Mark II. 

Below Ground Pump Cylinder 

Содержание INDIA MARK II

Страница 1: ...INDIA MARK II Installation and Maintenance Manual for Hand Pump Technicians and Borehole Caretakers Action Against Hunger ACF Uganda Mission ACF WASH September 2010 ...

Страница 2: ...y in order to help the most vulnerable populations regain their food autonomy as means to life without dependence on external help In the Uganda Mission there are programmes being implemented in Acholi and Lango Regions Food Security Nutrition Health WASH and Karamoja region Food security Nutrition Health and recently WASH Across Northern Uganda where ACF operates deep borehole wells are the most ...

Страница 3: ...borehole protection the parts inside The Water Tank Assembly This is the part where water from the pipes collects before it goes out through the spout It is where the rising main is connected using thread in the riser pipe holder The Pump Head Assembly This houses many of the mechanical components of the bore hole handle including the pump lever chain upper connecting rods and the pivot Connecting...

Страница 4: ...ound parts of the India Mark II borehole assembly Riser Pipe Connecting Rod PVC Casing Pipe Leg Platform Pedestal Bolt nut washer check nut Water Tank Assembly Head Assembly Handle Assembly Bearing Axle washer nut check Connecting Rod Check Nut Riser pipe holder Guide Bush Chain Coupling Maintenance Cover Chain Chain bolt nut Cover bolt washer ...

Страница 5: ...erground The depth that a pump is set is based on the desired yield rates flow rates A minimum yield of 0 8 2 0 cubic meters per hour is usually targeted One cubic meter is equal to 1000 liters Figure 2 Pump cylinder for the India Mark II Below Ground Pump Cylinder ...

Страница 6: ...estal which can create unsanitary conditions inside the well How boreholes can be maintained Ideally a well is regularly checked and maintained by a trained pump mechanic whose du ties are to make sure major breakdowns do not occur which could severely interrupt ser vice This includes preventative maintenance to ensure a long life for the borehole A typical schedule of maintenance could involve th...

Страница 7: ...nd when cutting the threads of the rising mains Fixed open ended spanner 17 x 19 mm For connecting rod couplings tightening and loosening bolts and nuts Crank axel rod spanner 17 x 19 mm For tightening and loosening the chain bolts and nuts Connecting rod vice For holding the connecting rods Pipe Die For cutting threads in the galvanized pipes Connecting Rod Die For cutting threads in the connecti...

Страница 8: ...ng of the rising mains during installation or dismantling of the pump Handle axle punch Used to drive out the handle axle bolt without damage to the threads A center punch Used to remove the broken ball bearing from the bearing housing Oil can litre For cooling during cutting of treads Steel brush Used for brushing cleaning the threads cut Coupling spanner Used for holding firm the Nuts bolts when...

Страница 9: ...ist of the water users in the community Collect and keep contributions towards the construction cost and the O M funds Regularly visit and monitor the condition and performance of the water point Verification of the purchase of materials needed for the repair or maintenance of the water source Pay for any repairs carried out by a mason or hand pump mechanic Supervise and provide support to the wat...

Страница 10: ...nsure 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 hand pump above and below the ground level are few and therefore simplifying the mainte nance of the hand pump The following schedule of maintenance has been drawn at fixed intervals and has been ex plaine...

Страница 11: ...nd follow the instructions i If chain bearing spacer are damaged replace them ii If roller chain is badly worn out replace the handle assembly iii If there are any damaged pipes have them replaced iv Open out the cylinder assembly and replace cup washers sealing rings and other components found to be faulty v Check the condition of the water tank riser holder If the threads are worn out replace wa...

Страница 12: ...10 Upper Valves Complete 20 000 11 Pump Buckets 3 000 12 Pipes 50 000 13 Connecting Rods 20 000 14 Lower Valves 20 000 15 Axle Bolts 7 000 16 Axle Nuts 1 000 17 Bearing Spacer 1 000 18 Washer 1 000 19 Chain Bolts 1 000 20 Chain Nut 1 000 21 Pedestal 150 000 22 Reducer Cap 3000 23 Plunger Rod 20 000 24 Rubber Seal lower 1 500 25 Rubber Sela l upper 1 500 26 Sockets 2 000 PRICES OF SOME OF THE MAJOR...

Страница 13: ...etely Disconnection of rods at the joint Re connect the disconnected rod 6 Water takes very long to come even after a brief stop over Worn out sealing rings or pump buckets Cracks on the rising mains Replace the sealing rings and the pump buckets Replace the damaged rising mains 7 Water only comes well during rapid pumping Pipe leakages Worn out sealing and rubber sealing rings Replace leaking pip...

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