(a) dismantling of drum and equalization pinion with guard and refitting of drum after changing of f/b no.4 (b) repairing and reassembling of broken chain conveyor of f/b no-4 and (c) replacement of defective motor of f/b no-5 of amp colliery.

Bearing changing, belt coupling changing, gasket &#x0d changing and greasing and packing of pump installed &#x0d at main patch and jarlahi patch at phularitand, amp &#x0d colliery.

Repairing of 02 damaged geared coupling (male-female) for both gear box side and generator side (coupling connected the gear box shaft and the generator shaft) of 1.2 mw capacity horizontal hydro machine no. 01 and 02 damaged gear coupling (m

Replacement of one no. 150kw6.6kv motor and two nos. equalising pinion at incline 2nd belt conveyor at 3n4 incline, j.p.colliery

Replacement of worn out undercarriage assembly with new one including track chain, idler assembly, sprocket segment, track roller, fastener and carrier roller of 05 nos. cat d11t dozer (cat1, cat2, cat3, cat4 and cat5) and 02 nos. komatsu d475a

Replacement of block bearings at different belt conveyor drums after dismantling of out of order blocks bearings from drums at lhcm1 district of 3n4 incline, j.p.colly.

Transportation and fitting of one nos. 300kw gear box, one no. 6.6kv 300kw motor and replacement of one fgc-11 geared coupling in drum side of 1400 3rd belt conveyor in main incline at mic, jhanjra project colliery

Replacement of worn out undercarriage assembly with new one including track chain, idler assembly, sprocket segment, track roller, fastener and carrier roller of 05 nos. cat d11t dozer (cat1, cat2, cat3, cat4 and cat5) and 02 nos. komatsu d475a5

Dismantling, repairing and replacement of damaged/ worn-out gear coupling, overhauling and adjustment of intermediate pinions, along with re-alignment and re-fitting of gear box, of unit 403-a of moonidih coal washery.

Replacement of 2 nos. of snub drum assembly after dismantling of existing worn-out drum for unit c-1 belt conveyor and refitting of all its accessories at moonidih coal washery.