REPAIR/REPLACEMENT AND MAINT OF SEWAGE PUMP, AERATOR MOTOR AND CLEANING OF STPs AND SEWAGE LINE INCLUDING REPAIR OF VARIOUS MAIN CONTROLLING VALVE PIT CHAMBERS AND CONNECTED WORKS IN OUTSIDE POCKET AREA AT AF STATION GWALIOR

Lifting out of Unserviceable non clogging submersible pumping set,05 to 12 HP including Column pipe submersible cable only any size and type from the underground main sump /Open Well with the help of chain pulley manually operated by own arrangement of the contractor with and including loading, unloading and transporting from STP installation to civil work shop and bringing back after repair from the civil workshop to STP. complete all as specified and directed. Note:- (a) Cost of necessary T&P/crane required for taking out & fixing of the pump set from the underground sump are deemed to be included in this item. (b) The necessary repairs of the pump set shall be carried out by the authorised and approved agency at their workshop and quoted rates by the contractor for above item includes the transportation charges of pump set to and from workshop. (c) The replacement of new part carried out in the pump set shall be measured and paid for separately under work measured appropriate item of Schedule `A' and labour cost for fixing of materials specified as "supply only" shall be deemed to be included in the quoted rates. (d) Quoted rates shall be inclusive of all safety precaution and necessary equipment's required for entering into sump

Lowering down of the non-clogging submersible / pumping set, after repair of any description and any capacity & in any position, in UG sump Open well along with column pipe 80/50mm Dia and submersible cable of any size (approximately 10 mtr depth of pump set from GL including Colum pipe submersible cable only any size and type) complete all as specified and directed by Engineer-in-Charge including making necessary electric connections pipe connection & testing the pump set after lowering. Note:- 1. Contractor shall take proper precautions while lowering pump set in Open well so as to avoid any damage to column pipe and submersible cable. All necessary T&P and equipment's required for lowering down pump set etc shall be arranged by the contractor at his own cost. 2. Rates quoted by the contractor for the above item includes the cost of assembling & connecting pump set to column pipes & assembling, jointing and fixing column pipes/pump sets/submersible cable and making necessary connections and including reconnecting water supply system. The required materials like column pipes/ /submersible cable/pump sets etc (new/old retrieved materials) shall be provided by the department to contractor for fixing and lowering in open wells.

Cutting and taking out existing burnt out unserviceable copper winding from the stator unit of submersible motor of 10 /12 HP capacity, 3 phase, 415 volts, Non clogging Submersible pump set Cleaning of slots and complete stator unit with using carbon tetra chloride (CTC solution), material and labour for rewinding the motor with using super enamelled copper wire (Make: Atlas / Finolex ) of existing size / gauge including providing bi-metallic thermal overload protection and all necessary insulating Materials such as varnish, insulating paper, sleeves etc complete all as specified & directed.

Description all as per item No 3 above but pump & motors of capacity 5/7.5 HP

Hard metal upper mechanical seal assembly

Hard metal lower mechanical seal assembly pump side

Ball bearings, self lubricating and antifriction type, upper

Over size double row ball bearings, self lubricating and antifriction type,

Water tight cable terminal block with cable sleeve and strain relief.(Note: - Rates for water tight cable joints with cable sleeve are included in this item.)