Repairing of major overhauling of jhon tinsley 150 HP 550V make electric winder at 2 no incline of Bankola Colliery

Amount

Item Description/ Heading

Cost of wooden pattern

Cost of raw materials

Shaft keyway making

Shaft key new fitting

Shaft group lock clamp new making and fitting socket type 2 hubs.

Block stud new making 3/4" x5 1/2" long 8nos

Arrangement of dismantling the drum pinion through proper support with the help of chain pulley block,brake system and wooden props.

Dismantelling the main block of the drum shaft and taking out brass bush bearing with proper support arrangement.

Machining of the welded portion of the drum pinion by special arrangement at site,with boring machine as per original profile.

Machining of pinion keyway(2 nos) by welding and grinding.

Carrying and shifting the pinion (2halves) inside the winding room for fitting.

Placing the pinion halves in the winder drum by proper arrangement ,support with safety.

Welding of the worn out position of the drum shaft and thereby grinding the shaft to its original size.

Setting and fitting the pinion in tha shaft

assembelling the main drum shaft

Using gas to burn oil on the pinion for hardening and tempering treatment process.

DA cylinder

Oxygen cylinder

Different Size nut Bolt waser.

Transporatation

Total impact of GST for the purpose of CTC

Nirankar Motor Works (BID ID -1126398)