Repairs to 05 Cusec 84 M Horizontal Pumping Unit No 01 at WSS Pokhribal Stage 2nd and other electrical works at Construction Sub-Division and other Electrical works at Construction Sub-Division

Amount

Complete dismantling of single stage horizontal pump (all types) by way of: Disconnecting all leads from the motor and marking the terminals, uncoupling of motor from the pump. Disassembling, dismantling and segregation of various pump parts such as shaft and sleeves, impeller, gland, fasteners, etc.

Suction size > 200mm upto 400mm 250 mm

Complete assembling of single stage horizontal pump (all types) after cleaning of all parts throughly with petrol, coupling and alignment with motor, connecting of motor leads and testing on full load.

Suction size > 200mm upto 400mm 250 mm

Replacement of Driving End (DE) bearing of horizontal/ vertical pump by way of: Uncoupling of motor from the pump, isolating of DE bearing. Carefully extracting thsze old damaged bearing from the housing with the help of bearing puller, etc and fitting of new bearing in its place. Refitting back of pump parts, coupling and alignment with the pump. The job includes load testing of pump.

Suction size > 200mm upto 400mm

Supply and fitting of Bearing No 6412. Make SKF impoted or equivalent

Replacement of Non-Driving End (NDE) bearing of horizontal pump by way of: Opening the end cover of NDE bearing housing. Carefully extracting the old damaged bearing from the housing with the help of bearing puller, etc and fitting of new bearing in its place. Refitting back of pump parts, coupling and alignment with the pump. The job includes load testing of pump.

Suction size > 200mm upto 400mm

Supply and fitting of Bearing No NU-412. Make SKF impoted or equivalent

Fabrication, providing and fitting of GM bush to bell mouth/ bowl unit/ stuffing box/ Sleeve, or similar as per sample having finished weight as under: Sleeve

upto 1.0 kg

Extra per kg >1.0 kg upto 2.5 kgs

Fabrication, providing and fitting of GM lantern (cooling) ring for stuffing box as per sample having finished weight as under:

upto 1.0 kg

Manufacturing, finishing, providing of SS (AISI 410 or IS 1570) key/ impeller lock collet as per available sample and slot size.

Manufacturing, providing and fitting of SS (IS 1030) check nut/ impeller adjusting nut with proper locking arrangement as per sample available.

Providing and fitting of Cast Iron split gland as per sample:

upto 1.0 kg

Fabrication, providing and fitting of GM/bronze impeller wear ring/ seal ring/ sand collar

Wear Ring upto 1.0 kg

Sand Collar upto 1.0 kg

Repairs to damaged SS shaft by way of rebuilding of shaft using high quality SS electrodes (Ador/ Advani/ ESAB makes) and then turning the shaft on lathe machine to undertake finishing work and restore the original dimensions and profile of the shaft.

Shaft of more than 50mm diameter at one damaged spot on shaft length

Mechanical transportation, loading, unloading and handling of various items such as pump parts, motors, starters, voltage stabilizers, coil assemblies, welding tools & plant, etc. using appropriate means of transport as under:

Load carrier auto, minivan or similar with 1.0 km lead

Extra per kilometer for lead >1.0 kms upto 5.0 kms

Extra per kilometer for lead >5.0 kms upto 10.0 kms

Providing and fitting of Rubber Seal for air tight fitting of split parts of the pump as per sample

Providing and supply of metallic palmative packing of 12 mm size

Providing of Dhoti Cloth of Size 1 M X 3M for upkeep of the Electromechanical equipment.

Providng of Metal Arc Electrode Holder. The Holder shall be Heavy Duty, fully insulated of 600 A Capacity. It shall be easy to use, with a powerful Grip. It shall be of Forged Brass material. Job also includes p/f of 50 sq mm, Multi-Starnaded Copper Welding Cable. 15 Mts

Repairs to Unit No. 2 by way of replacement of Bearing Housing Studs. Job involves removing/ extracting of the damaged studs and fabrication and fitting of new studs. Job involves providing and fitting of MS check Nuts. It zlso includes providing and fitting of Coupling Bolts. 4 No

Repairs to 50 ltr capacity Venus make water Heater (Geyser) installed in the Bathroom attached to Executive Engineers Office room by way of replacement of damaged parts viz Thermostat and heating element of required capacity. Cost involves special tools and skilled labour charges.

Repairs to 600 VA Luminous make inverter of Sub-Divisional Office installed in the SDC Room. Job involves shifting of the Inverter to workshop. Checking of all the parts. Replacement of damaged parts viz Bipolar junction transistors (BJTs). 06 Nos, fuse mechanism. Cost involves special tools and skilled labour charges. Testing on full load.

Servicing and Repairs to 150 AH Lead Acid Type Batteries (Exide Invatubular) Job involves shifting of the batteries to workshop. Draining of the old electrolyte from the batteries. Checking the battery cells and other parts. Washing/ cleaning of all parts with distilled water. Refilling the batteries with fresh Sulphuric Acid and Distilled water with desired concentration and quantity. P/f of new connection terminals after extracting the old damaged connection terminals. Recharging of the battery with AC Supply at the workshop till the desired Specific Gravity of the electrolyte is achieved for approx. 72 Hrs. Complete job involves material cost, labour cost and shifting charges. Testing of the batteries for backup.

Servicing and Repairs to 180 AH Lead Acid Type Batteries (Exide Express) Job involves shifting of the batteries to workshop. Draining of the old electrolyte from the batteries. Checking the battery cells and other parts. Washing/ cleaning of all parts with distilled water. Refilling the batteries with fresh Sulphuric Acid and Distilled water with desired concentration and quantity. P/f of new connection terminals after extracting the old damaged connection terminals. Recharging of the battery with AC Supply at the workshop till the desired Specific Gravity of the electrolyte is achieved for apprx 72 Hrs. Complete job involves material cost, labour cost and shifting charges. Testing of the batteries for backup.

M/S MIR ELECTRICAL AND MECHANICAL WORKS