Complete mechanical overhauling work of Fuji Car, Japan make, 100 20 ton dam top gantry crane

I- Main Hoist

Rope Drum sub- assembly(main hoist)- Dismantling of bearings & plumber blocks, cleaning of bearings, Overhauling/Replacement of bearing & checking spacers adjustment, checking of rope clamps if required, replacement of clamp by new one, if required. Cleaning of gear pinion & reassembling after painting of parts & proper greasing

Hoisting counter shaft Dismantling of bearings & plumber blocks, cleaning of bearing, Overhauling/Replacement of bearing & checking of spacers adjustment. After painting of parts & their greasing, its re-assembly with proper alignment.

Assembly for Rope winding device- Dismantling of bearings & plumber blocks, cleaning of bearings, Overhauling/Replacement of bearing & checking of spacers adjustment, checking of dowels. Checking of chain for sprocket. Cleaning of gear sprocket & pinion, checking of bush bearing & its cleaning & reassembling after painting of parts & proper greasing.

Guide-Roller Sub assembly- Dismantling of guide roller, checking of guide body & guide pin & its cleaning, resetting of guide roller for proper rope winding & its adjustment etc. complete in all respect including painting & greasing.

Main hoist gear box Sub assembly- Dismantling of gear box after draining of oil & its complete cleaning. Overhauling/Replacement of bearing, Cleaning of gears & pinions. Cleaning of oil level indicator, overhauling of compression and suction pump. Checking of locking keys. Reassembling by providing new oil seals etc. complete in all respect painting of top & bottom casing & refilling of gear box by new oil to be provided by dept

Mechanical load brake sub assembly- Dismantling of Ratchet drum, Lining ring, Pawl & oil circulation pipe line, its overhauling & replacement of friction strap & belt. Its reassembly for proper & effective braking system.

Snatch block Sub-Assembly- Dismantling of all rope pulley & bearings, hook & round nut. Overhauling/Replacement of 16 Nos. of bearing. Machining of pin & cleaning of its greasing vanes. Making provision of draining of water from base cover plate of snatch block & reassembly after proper painting & greasing.

Upper pulley block sub-assembly- Dismantling of all rope pulley & bearing, pin & pulley brackets. Overhauling/Replacement of 16 in no bearing. Machining of pin & cleaning its greasing vanes. Reassembly after proper painting & greasing.

Equalizing pulley Sub assembly- Dismantling of equalizing pulley & pin. Overhauling/Replacement of 02 in no. bearing. Machining of pin & cleaning its greasing vanes, reassembling after proper painting & greasing.

Deviating pulley sub assembly – Dismantling of pulley & pin, bracket. Overhauling/Replacement of 04 in no. bearing. Machining of pin & cleaning its greasing vanes, reassembling after proper painting & greasing.

100/20 Ton winch assembly- Overhauling & reassembly of winch assembly, its greasing & painting including application of cardium compound on new rope etc. complete in all respect.

Screw arrangement for 100/20 ton Trolley- Dismantling and cleaning of shaft screw, gear box plumber blocks (Including Overhauling/Replacement of 02 Nos. of bearing), two way limit switch & reassembling after painting & proper greasing & testing of limit switch.

II. Auxiliary Hoist:

20 Ton trolly & winch sub assembly - Dismantling & overhauling of gear & pinion for rotary limit switch. Cleaning of wire rope (29 mmj,6x37 construction hemp core approx 300 m long) and application of cardium compound on rope & reassembling of all parts, their painting & greasing and testing of proper operation etc. complete in all respect.

Runner wheel (4 nos.) sub assembly- Dismantling & overhauling of gear ring, spur pinion & its bearing, its reassembly, greasing and thereafter painting. Dismantling of runner wheel should be carried out after proper securing, cranes frame work with help of jacking & welding etc. to prevent it from any disturbance from original position.

Equalizing pulley sub assembly- Dismantling of 1 no. equalizing pulley, Overhauling/Replacement of 02 Nos. of bearing, machining of pin if required, cleaning of grease vane in pin & reassembling after painting & proper greasing.

Snatch block sub assembly- Dismantling of two Nos. pulleys, four nos. snatch block assembly. Overhauling/Replacement of 04 Nos. of bearing & cleaning of thrust bearing, matching of pin if required, cleaning of its grease vanes, painting of parts & reassembly after proper greasing.

Rope drum sub assembly- Dismantling of bearings, Overhauling/Replacement of 02 Nos. of bearing, & checking of all bolts & nuts, spacers, rope drum shaft alignment, locking plate etc. painting & reassembling after proper greasing.

Cross travel Gear Box Sub assembly- Dismantling of bearings, oil seals of input & output shaft, gears & pinions, Overhauling/Replacement of bearing, replacement of oil seals as per specifications, setting & adjustment of gears & pinions, reassembling after greasing & filling of oil.

Auxiliary hoist gear box sub assembly- Dismantling of bearings, gear & pinion, oil level indicator, Overhauling/Replacement of bearing reassembling. After proper greasing & setting & adjustment of gears.

Overhauling of cable reeling Assembly- Overhauling/Replacement of 04 Nos. of bearing, adjustment of clamping plates & replacement of cable including supply & fixing by clamps & shades of flexible steel conduits .The work includes fixing MS sheet awnings above cables, with proper frame work of angle iron complete in all respect.

III- Bogie carriage for Long Travel machinery

Dismantling of 12 Nos. plumber block and Overhauling/Replacement of its 12 Nos. of bearing. Dismantling of all brake oil lines and its replacement thereafter its reassembling for proper and effective operation.(Note – material for oil line should be SS)

Dismantling of runner wheel (16 nos.) after removal their Pin, machining of pin if required, cleaning of greasing vanes of pin & replacement of bush for runner wheel if required, dismantling of runner wheel should be carried out one by one after proper securing, cranes frame work with help of jacking & welding etc. to prevent it from any disturbance from original position painting of wheels & reassembly after greasing & alignment.

Checking of gear box attached with motor & its overhauling cleaning of all gears & its reassembly

Installation of load cell – Supply of microprocessor based “safe load indicator” for 100/20 ton dam top gantry crane complete in all respect with following specifications:- 1. Two Nos. Load sensor for 100 ton hook and 20 ton hook. 2. One No. load display unit. 3. Required cable for both load sensors 4. Installation testing and commissioning of safe load indicator

Testing of crane: Testing and certification of 100/20 ton dam top gantry crane of Rihand Power Station Pipri.

Running maintenance for a period of 01 years- In the running maintenance of crane contractor shall provide four site visits one in each quarter and during movement of crane (capital overhauling of Intake in said period) for routine checkup of the 100/20 ton dam top gantry crane and has to reach the site within 24 hours in case of break down.

M/S RAJ ENTERPRISES

Bidder Name

M/S RAJ ENTERPRISES

M/S J K ENTERPRISES