nsry / f / vkd / lft / nr-20 rrc for routines / repairs of lifts - cargo , passenger , galley and aa lifts including load test onboard in ships for a period of two years at nsry ( karwar ) , ammunition lift no . 1 , power drive assembly and wire rope assembly , overhaul following ( re-chrome as necessary ) , power drive hydraulic assembly , hydraulic lift cover drive assembly . , hydraulic keeps and guard rails , overhaul hydraulic pump of keeps including draining and cleaning of hydraulic tanks . , overhaul hydraulic guard rail stanchion drive , overhaul all guard rail stanchions , overhaul all speed regulators . , inspect complete hydraulic pipelines for leakages , rectify leakages . , electrical panels and controls , service all limit / control switches for proper operation . , overhaul main control panel , local operating panel and repair / renew defective components including renewal of corroded panel boxes . , undertake serviceability checks of electrical interlocks and sequencing of lift operation controls . rectify defects as necessary to ensure auto operation of lift . , tests and trials , carryout hydraulic test of all assemblies and rectify any leakage if observed . , carry out alignment checks of lift , stw and trials of lift in auto mode , load test of lift , rectify defects observed during load test , power drive assembly and wire rope assembly , overhaul following ( re-chrome as necessary ) , carriage assembly , catcher assembly , sheave blocks , speed limiters and tensioners ( 4+8+4+8 ) , support running roller , cable break signaling device , carryout serviceability checks of steel wire ropes and renew if necessary , auxiliary brake , dismantle plunger unit and check oil brake winding . , clean brake mechanism and renew all corroded parts of brake liner . , overhaul electromagnetic brake , renewal of brake pads and brake coil . , ammunition lift 2 , 3 and 4 , main drive assembly and working chain assembly , overhaul drive motor of main drive winch assembly . including renewal of bearings and balancing of the rotor . , overhaul reduction drive gear box and sprockets assembly including renewal of bearings ( qty 03 perlift ) , survey and repair winch foundations including replacement of foundation fasteners , disconnect the chain yoke from platform and inspect for deformation . repair / renew as necessary . ( qty 04 per lift ) , remove , clean and inspect working chain , renew as necessary . ( qty 04 per lift ) , check clearances of working chain and chain guide . repair / renew as necessary . ( qty 04 per lift ) , renew safety chain guide and adjust safety guide chain mechanism . ( qty 04 per lift ) , overhaul upper sprockets . , overhaul pump ( qty 02 per lift ) , hydraulic keeps , hinges and system , overhaul hydraulic pump of keeps including draining and cleaning of hydraulic tanks , overhaul lift cover drive hydraulic hinge assembly , overhaul all hydraulic keep assemblies , overhaul all hydraulic manipulators , overhaul all speed regulators , inspect complete hydraulic pipelines for leakages , rectify leakages , auxiliary brake , dismantle plunger unit and check oil brake winding , clean brake mechanism and renew all corroded parts of brake liner , overhaul electromagnetic brake , renew brake pads and brake coil , doors and stanchions , overhaul magazine door opening actuators , renew / repair stanchions and rod gearing assembly including bevel gear and worm / sprocket assembly , replace rubber beading of opening at deck 1 . beading to be manufactured as per sample , electrical panels and controls , service all limit / control switches for proper operation , overhaul main control panel , local operating panel and repair / renew defective components including renewal of corroded panel boxes . , renew magazine door limit switches , undertake serviceability checks of electrical interlocks and sequencing of lift operation controls . rectify defects as necessary to ensure auto operation of lift . , tests and trials , carry out alignment checks of chain tracks . , stw and trials of lift in auto mode , load test of aa lifts and load test of aa lifts and during load test . , galley lift 1 & 2 , lift mechanism , overhaul electric winch including motor . renewal of de&nde bearings as necessary , overhauling of brake unit and renew of brake pads as necessary , repair / renew electromagnetic brake mechanism and renew all brake liners , check clearances of guides and adjust as per document , undertake maintenance of counter weights , inspect and repair top snatch blocks and rope driving sheaves , inspect and renew steel wire ropes as necessary , clean trunk of galley lift , lift cabin , overhaul lift cabin top and bottom safety catchers , repair cabin door and deck door to ensure free operation , clean and paint lift cabin , controls , inspect control cabinet for defects in wiring , circuit-breakers , signal lamps and push buttons , renew as necessary , check and adjust all limit / unit switches for proper operation , inspect all safety circuit / switches for proper operation , repair / modify as necessary , trials , carry out alignment checks of lift , stw and trials of lift in auto mode , load test of lift , rectify defects observed during load test , passenger / cargo lift , lift mechanism , overhaul main drive motor of main drive winch assembly , including renewal of bearings and balancing of the rotor , overhaul gear box assembly , overhaul brake unit and renew of brake pads as necessary , repair / renew electromagnetic brake mechanism and renew all brake liners , check clearances of counterweight and cabin guides and adjust as per document , undertake maintenance of counter weights , inspect and repair top snatch blocks and rope driving sheaves , inspect and renew steel wire ropes as necessary , clean trunk of lift , check cabin and counterweight buffer springs , renew as necessary , overhaul cabin & counter weight securing mechanism , lift cabin , overhaul lift cabin top and bottom safety catchers , repair cabin door and deck door to ensure free operation , clean and paint lift cabin , refurbish / renew / modify all cabin and deck locking mechanism . , controls , inspect control cabinet for defects in wiring , circuit-breakers , signal lamps and push buttons , renew as necessary . , check and adjust all limit / unit switches for proper operation , inspect all safety circuit / switches for proper operation , repair / modify as necessary . , trials , carry out alignment checks of lift , stw and trials of lift in auto mode , load test of lift , rectify defects observed during load test , spares , sheave bearing . , bush bearing .