34559884
dredge equipment jobs dredge equipment oh related job for dci dredge xxi at cksru, kolkata draghead and intermediate gantry ( port & stbd ) :***all spares owner supply 2 ( i ) greasing line to be freed, renewed wherever required, nipples to be fixed wherever required and satisfactory operation to be shown. 3 ( ii ) renewal of grease lines up to 25 mm dia. material contractor supply. 4 ( iv ) wooden fender brackets to be renewed and wooden block to be fitted on the chocks. material contractor supply. 5 ( vi ) wooden fender renewal ( size: 100x150x1400 mm ) . material contractor supply. 6 gantries heel pin & bush clearance checking 7 ( iv ) gantries steel renewal to be done as per utg report. material contractor supply. 8 suction tube on deck 9 removing old draghead from the pipe, transport to workshop and after repairs, shift back to vesssel and refit reconditioned draghead with new bolts and nuts to suction tube. 10 ( i ) dismantling and removing the 700 nb pipes ( 22000 mm long approx ) suction tubes from position with 2500x2500 gimble ring and 7000 long hose, fork arms, jet pipes and suction & jet hose etc. from the suction bend fork and to be kept on deck side / transported to workshop. 11 ( ii ) after repairs ( to various items ) to be fitted to original position on deck including pipe sections, suction pipe to be assembled with turning gland, gimble ring, fork arms, flexible hoses etc 12 overhauling of gimble ring assembly ( gimble ring with 2 fork arms ) , housing of bushes to be built up and machined, if enlarged. 13 ( i ) overhauling 14 ( ii ) build up 15 ( iii ) line boring to be carried out as required 16 pins & bushes of gimble ring assembly to be renewed, assemble back and locking plates to be renewed. 17 ( i ) pins renewal 18 ( ii ) bushes renewal 19 ( iii ) renewal of locking plate. material contractor supply. 20 suction bend with fork arm housing of bushes to be built up and machined, if enlarged. 21 pins & bushes of suction bend with fork arm to be renewed, assemble back and locking plates to be renewed. 22 ( i ) pins renewal 23 ( ii ) bushes renewal 24 ( iii ) renewal of locking plate. material contractor supply. 25 ( i ) thinned down, wasted and corroded portion of the fork arms to be cropped and renewed as per drawing. material contractor supply. 26 ( iii ) building up and grinding worn out portion of the turning gland ring – cs. rate including cost of electrodes esab – terro weld dbl / dms or equivalent. 27 ( ii ) fabrication of suction pipe to the required length, and welding butt joint and making suction tube as per sample with existing flange out of 16 mm thick lloyds gr.a steel plate including new packing, new bolts & nuts & removal & fittment of other fittings. dia of pipe 700 mm. size of pipe renewal to be clearly mentioned in workdone certificate. suction pipe & flange ship supply. 28 ( iv ) channel for depth indicator air pipe of size 100 x 50 mm to be cropped and renewed including fabrication of channel. material contractor supply. 29 ( v ) jet pipe ms box & supports, long jet hose supporting beams to be renewed. material contractor supply. 30 ( vi ) opening, overhauling & fitting back of junction box for suction tube. 31 ( vii ) port suction bend pipe to be renewed with the new bend pipe with arms, with nuts and bolts. bend ship supply. 32 ( viii ) the ship side wedges to be built up and ground smooth. 33 suction bend trunion assembly***all spares owner supply 34 support to be provided to the suction bend trunion assembly and the fork arm, to secure the suction slide assembly in position. removing 28 nos. holding down nuts of the bend with slide. dismantle and remove the split rings ( size: 1095 mm od x 1045 mm id x 125 mm thick – approx ) in two halves and the wear plate ( size: 1405 mm od & 1095 mm id x 25 mm thick ) from position and taken to the workshop or dockside. the suction bend with fork is to be removed and shifted to theshore. 35 the suction slide is to be removed from channel and same to be taken to shore. 36 building up the worn out portion of the suction bend collar guide etc. & slide body ( l ring housing area & jet manchet housing area to build up & grind to bring the clearance to minimum requirement. 37 renewal of the damaged or worn out “l” ring of the suction slide ( “l” ring ship supply ) 38 renew two wedges in the slide with adjusting rod of 25 dia x 1200mm long with 3 nuts to adjust the suction slide position with suction mouth. wedges ship supply. 39 after completion of repair as expressed above, all parts of the slide to be assembled and brought back to vessel and same to be slide on the ship’s rails for checking the alignment of slide with ship’s suctionmouth. 40 build up shipside guide rails, wherever required with terro weld dms welding electrodes or equivalent, after pre heating the rails and ground surface. 41 port & stbd service frame***all spares owner supply 42 ( i ) 6 mm u channel to fabricate and weld wherever damaged. service frame eyes to be cropped and renewed, pins and bushes to renew ( pins and bushes ship supply ) . alignment of service frame to be carried out as per ship staff instructions / drawings & offer satisfactory trials on completion of repairs. steel contractor supply. 43 ( ii ) remove, refit, transportation and overhauling of service frame. approximate weight of service frame is 2 tons with pins & bushes. 44 ( iii ) line boring on pin housing 45 dragheads***all spares owner supply 46 draghead to be dismantled completely at ashore. all parts are to be chipped and cleaned for inspection. after inspection and repair, same to be assembled with new / reconditioned pins and new bushes ( pins and bushes ship supply ) 47 gantry pulleys***all spares owner supply 48 following pulleys are to be removedfrom the place, after removing locking plate. complete pulleys are to be thouroughly, inspected, cleaned and overhauled. pins and bushes are to be removed. after inspection and overhauling, the pin & bush, pulleys are to be fitted back with new / reconditioned pin and bushes. locking plate to be welded. greasing lines / passages to be cleaned and made good. ( pins & bushes ship supply ) 49 ( i ) draghead sheave dia 710mm x d36 mm 50 ( ii ) intermediate sheave dia 800 mm x d 40 mm 51 ( iii ) suction bend sheave dia 450 mm x d22 mm...
Due Date : November 03, 2022
Tender Value : ₹ Ref. Documents
