CERTAIN REPAIRS AND MAINTENANCE OF VARIOUS EOT CRANES INSTALLED AT EME WORKSHOP AND MH KHADKI UNDER GE MH AND RH KHADKI

Part-I Comprehensive manitainence and repairs to Cranes. Material and labour for servicing of over head traveling crane complete including checking / tighting of all nut , bolt & breaks complete system, adjusting etc of all breakes motions and VFD adjustment setting as per load testing run of flame proof / non flame proof/ normal type EOT cranes with having single or double girder type and providing greasing & oiling of travening / moving parts of crane with connecting motor girder parts for movment of crane hoist / long / cross traveling and including maintaining the controlling of speed / creeping micro speed of motors with checking / Adjusting / minor maint / repair to the electrically operated main control panel wire with connecting control wiring system consisting of main switch, step down transformer, contactor, HRC fuse, VFD, PLR, control pendent, wire rope with break drum unit, gear box unit , oil levels, motor bed / foot , electrical control cable, motor terminal, end cable carriage trolly,motor shaft, bush flange bearing with lathe work, chain pully block, rachet cluch, gear block, chain wheel, chain etc and including locating the defect/fault and rectification of the fault and rectification of oil leakage etc and replacement of defective nut, bolt & washer and making it sound proof and after trails testing run of crane for smooth functioning / operation for the following mentioned capacity cranes complete all as specified and directed.

Note : Periodic inspection/servicing, to be carried out in every three months and making/keeping the cranes serviceable, for EOT cranes of rating load 1 Ton to 10 Ton capacity installed in various locations, including the properly checks as mentioned below:- (i) LONG TRAVEL MOTION AND CROSS TRAVEL MOTION (a) Checking Gear box oil level and filling with required oil and rectification of leakages if any. (b) Brake adjustment (c) Checking of long travel & cross travel wheel for any noise / mal functioning. (d) Checking grease of geared couplings, complete nut, bolt work for tightening and replacement of grease nipple. (e) Checking of oil in Hydraulic thruster brake, rectification of leakages if any and filling with required quantity of oil. (f) Checking of electric motor connections, insulation resistance value etc (g) Checking the cut-off at extreme ends with the limit switch. (j) Checking and greasing of shaft pedestal.

(ii) HOIST MOTION (a) Checking gear box oil level and filling with required oil and rectification of leakages if any.(Note: Gear Oil shall be measured and paid separately as supply only) (b) Brake adjustment (c) Checking of main bearings of the rope drum including greasing the same (d) Checking grease of geared couplings and nut tightening. (e) Checking of oil in hydraulic thruster brake, rectification of leakages if any and filling with required quantity of oil.

(f) Checking of electric motor connections, insulation resistance value. (g) Checking wire rope for any damage & greasing the rope. (h) Adjustment of the rotary limit switch. (j) Checking of bearing of the hook and greasing the same. (iii) ELECTRICAL PANEL (a) Checking the contactors for overheating or flashing. (b) General checking of contacts and connections. (c) Cleaning of control panels and checking of connections. (d) Checking of connections of VVVF drives/other drive, calibrating VVVF drive and PLC to get smooth movement & maximum efficiency / other drives for smooth functioning of the same. (e) checking the serviceability of cable including power/control cable, checking the serviceability of cable carrier/cable trolleys ,adjusting as possible to get maximum free for movement of moving part/ Aprons of EOT cranes (iv) DOWN SHOP LEAD (a) Checking the alignment and rectification. (b) Cleaning of the moving/sliding objects.

Providing material and labour for load testing of over head traviling crane of following capacity EOT crane as per manufacture norm for safe working rating load including arrangment of dead load measurement unit with link steel wire rope and requred suitable load for testing with duly varying the load upto 110% of the rated capacity load test certificate in triplicate set from authorised crane inspector duly signed by inspector authority of crane complete all as specified and directed Note : Recovery of Rs 10,000/- per crane will be effected for non compliance of the job during the contract period.

EOT crane of capacity upto 05 Ton at Station workshop EME Khadki and Aundh Camp

EOT crane of capacity 10 Ton at Station workshop EME Khadki

Dismantling and removing of old Mild Steel 3 phase bus bars of any size/type including brackets, insulators etc from the height of 25 fts by gas cutting and taking it down carefully with the help of chain pulley block etc complete all as directed. Note :- Necessary safty measures for labours and tools/plant to be taken by the contractor while dismantling and refixing of busbar from the height specified.

Dismantling of crane track by gas cutting the pressure plates/rusted nuts & bolts /side supports and Grinding / sanding of gas cutted surface including making the surface smooth surface for shifting the track with proper alingment and cleaning the entire track with the help of air wash complete all as specified and directed.

Matrerial and labour for taking down of unserviceable motor from OHT crane and including transporting and re-winding of electric motor of follwoing capacity with supper enameled copper conductor wire as per existing size/gauge including making varnishing drying and connecting fixing accessories etc including refixing on same position and testing on load complete all as specified and directed

0.5 to 2 HP, 3 phase 415 volts,

3 to 5 HP, 3 phase 415 volts,

7.5 HP to 10 HP, 3 phase 415 volts,

Matrerial and labour for taking down of unserviceable motor from OHT crane and including transporting and changing of bearing of electric motor of follwoing capacity with new bearing as per existing size including refixing on same position and testing on load complete all as specified and directed

0.5 to 2 HP, 3 phase 415 volts,

3 to 5 HP, 3 phase 415 volts,

7.5 HP to 10 HP, 3 phase 415 volts,

16 Amp to 32 Amp

12 Amp to 15 Amp

06 Amp to 10 Amp

2.5 Sq mm X 4 Core

4 Sq mm X 4 Core

Supply and replace copper strip of size 20 x 3 mm for extenstion of earthing complete all as specified and as directed.