repair & maintenance of 12 ton hydra crane ( escorts make ) -2 changing of lubricating oils after flushing out of old used oil from the machine such as engine oil 10 ltrs, gear oil 55 ltrs, brake oil 10 ltrs, steering oil 05 ltrs & hydraulic oil 80 ltrs. complete job. 3 p/f of of filter assy lube oil 01 no., single fuel filter 01 no, air filter outer 01 no., air filter inner 01 no., return oil filter 01 no., suction filter 01 no., air breather assy 01 no., fuel cock 01 no., head lamp assy lh - 01 no., head lamp assy rh - 01 no., spot lights boom - 03 nos., chamber tail light rh - 01 no.,chamber tail light lh - 01 no., unloader valve - 01 no., brake pipe 10 mtrs, fuel pipe set 01 no. complete job 4 p/f of new winch rope 90 mtrs (make: usha martin) dia 13, non rotating steel core 18x7, minimum braking force = 1770 n/sq.mm with its proper alignment with installed pulleys for smooth lowering and raising of equipments complete job 5 repair/replacement of ist extension boom ensuring its smooth movement including p/f of hook at the extreme end, complete job