Repairing and rectification with spares of chain conveyor drive shaft assembly, tail end shaft assembly and secondary crusher drum roll assembly for Black Diamond make Feeder Breaker (Machine No-06) in respect of AADOCM, Dhori Area.

Amount

Part A: Repairing of Chain Conveyor Drive Shaft assembly of Black Diamond make F/B

Removing of gear coupling set from drive shaft with the help of making one structure frame as per required for fixing hydraulic jacks & structure welding with gear coupling by special jointing steel electrodes & after repairing & rectification re-fitting with the help of hydraulic press machine.

Dismantling of Drive shaft assembly both side bearing housing cover, bearing housing, sleeve check nut, shaft check nut, bearing, sleeve, dust seal, cover bolts, block bolts, sprocket with the help of hydraulic jacks, gas heating, hammering, pulling, pushing.

DE & NDE main bearing removing with the help of puller & getting out.

Drive shaft drum shell complete cutting by gas in piece-piece.

Drive shaft sprocket all old welding complete cutting/gauzing

Drive shaft both side sprocket seats damaged & worn-out portion repairing by full round multilayer 510mm long x 220mm OD welding & machining as per sprocket bore & also shaft alignment trueness checking, threads cleaning, polishing.

Drive shaft damaged and worn out key way repairing by multilayer welding and machining then after new key way cutting as per both side one line alignment.

Heavy duty key new making for above sprocket & drive shaft.

Dust triple seal damaged and worn-out OD, face and grooves full round multilayer welding and machining as per std size.

Drive shaft oil seal worn-out seat full welding in double layer & m/c as per std size.

Oil seal new provide and fixing for above drive shaft.

Worn-out & damaged sprocket tooth’s height, width, length & shape increasing by hard facing steel electrodes & shaping by grinding as per conveyor chain links. 28Nos Tooth’s

New M.S Plate shell making as per required shape & size with the help of cutting, welding of size- 12” diameter x 35” length x 8mm thickness

Bearing housing & back side cover plate dust seal seat, color, groove, face, back side increasing by welding method full round as per required & machining, polishing, alignment setting of L.H & R.H

New Sleeve with check nut & lock washer as per size for 23140BK.MB.C4 Bearing for L.H & R.H.

Both end main bearing, dust seal seat, shaft bearing seat, thread cleaning & greasing.

DE & NDE bearing fitting & setting in Drive shaft with alignment & measurement with the help of hydraulic jacks.

Re-assembling of bearing housing, dust seal, bearing covers, block bolts, cover bolts & proper alignment setting with the help of hydraulic jacks, pulling, pushing.

Drive shaft complete assembly includes bearing housing setting with proper alignment, adjustment, commissioning work done at Amlo siding site.

Trail run testing & proper checking at Amlo siding site.

Part B: Repairing of Chain Conveyor Tail End shaft assembly of Black Diamond make F/B

Dismantling of Tail End shaft assembly both side bearing housing cover, bearing housing, sleeve check nut, shaft check nut, bearing, sleeve, dust seal, cover bolts, block bolts, sprocket with the help of hydraulic jacks, gas heating, hammering, pulling, pushing.

DE & NDE main bearing removing with the help of puller & getting out.

Heavy duty key new making for above sprocket & Tail shaft.

Dust triple seal damaged and worn-out OD, face and grooves full round multilayer welding and machining as per std size.

Tail shaft oil seal worn-out seat full welding in double layer & m/c as per std size.

Oil seal new provide and fixing for above drive shaft.

Worn-out and badly damaged sprocket tooth’s height, width, length & shape increasing by hard facing steel electrodes & shaping by grinding as per required of conveyor chain links. 28Nos Tooth’s

New Sleeve with check nut & lock washer as per size for 23140BK.MB.C4 Bearing for L.H & R.H.

Both end main bearing, dust seal seat, shaft bearing seat, shaft thread cleaning & greasing.

DE & NDE bearing fitting & setting in Tail End shaft with alignment & measurement with the help of hydraulic jacks.

Re-assembling of bearing housing, dust seal, bearing covers, block bolts, cover bolts & proper alignment setting with the help of hydraulic jacks, pulling, pushing.

Tail End shaft complete assembly includes bearing housing setting with proper alignment, adjustment, commissioning work done at Amlo siding site.

Trail run testing & proper checking at Amlo siding site.

Part C: Repairing of Black Diamond Secondary Crusher Drum Roll assembly No-01 of Black Diamond make Feeder Breaker.

Dismantling of secondary crusher drum roll drive motor, drive pulley, adjusting studs,, block bolts, cover bolts with the help of gas cutting, welding, hydraulic jacks, pulling, pushing with skilled fitters & labour.

Lifting of secondary crusher roll manually with the help of Hydraulic Jacks, Screw Jacks system and providing proper supporting for drawing out the bearings.

D.E & N.D.E main bearing removing by pulling with the help of pullers.

Drum roll shaft damaged & worn-out bearing seat repairing by full round steel metal filling by welding method & roundness grinding & shaping as required & polishing by failing & amri paper with the help of hand grinding machine at site.

D.E & N.D.E side C.S casting bearing housing inner & outer cover new making with casting, machining, drilling, dust sealing groove making tapping Both side.

D.E & N.D.E side C.I. Casting Inner & Outer side bearing dust seal new making with casting & machining, groove cutting.

Badly damaged & worn-out bearing housing back side dust seal seat, color, diameter increasing by welding full round as per required & machining, polishing, alignment setting for DE & NDE

D.E & N.D.E bearings re-fitting and setting in shaft at site with misalign drum roll re-alignment & re-shifting with the help of hydraulic jacks

Both end main bearing cleaning, dust seal seat cleaning, drum roll shaft cleaning and after repairing greasing of bearings with housing.

Crusher drum roll housing/block adjusting jack screw shaft new making as per required size & measurement in full thread with one end seat & other end head for D.E & N.D.E side

Heavy duty check nut & lock nut new making for above block jack screw.

30mm x100mm H.T block bolts new with nut.

Re-assembling of blocks, bearing housing cover, cover bolts, adjusting jack screw, drive pulley & proper alignment setting with the help of gas cutting, welding, chain block, hydraulic jacks, pulling, pushing with skilled fitters & labour.

Total impact of GST for the purpose of CTC

WELDOLLOYS

M/s S D Sales Corporation