tender for extraction of stop log gates of old bay and additional new bay along with allied works at main ranbir canal head works akhnoor , lifting and extraction of stop log gates of all the five old bays by skilled work force through operation of mechanical/electrical hoist mechanism. lowering of hoist by mechanical/electrical hoist mechanism slowly and precisely into each vertical grooves slowly inside each bay to lift the gates, each gate leaf is to be secured in the lifting hoist by skilled labour with the help of pins and to be lifted slowly. job involves extraction by proper alignment so that the gates (02 nos. in each bay) are not literally tilted, no damages occur to side seals & hoisting it outside the groove and then stacking the stop log gate in hangers and securing firmly. the process is to be repeated for each leaf (02 leaves in each bay for five no. bays). safety belts/full body harness, along with fiber ropes anchored with suitable safety mechanism on ground to be used to hold the worker/arrest free fall of worker in case of any unfortunate incident during lifting of gates. the worker should wear a personal floating device which may consist of a vest, jacket or full length suit. the floating device should also include one or two under-straps to be worn between the legs of the workers and also a headrest flap, to event slipping out of the vest. job involves operation of hoisting mechanism for extraction of gates with the help of dg set, mobile crane, hiring charges of safety equipment, skilled labour, cables required for temporary connections, cost of pol, tools & tackles, cost of device and other safety equipments etc. extraction of stop log gate of additional new bay of size 4.8 m x 5.0 m with the help of mechanically operated hoist mechanism by employing skilled work force. job is to be carried out precisely so as to avoid any literal tilting and damages to side liners/seals. stacking it in suspended position inside the bay itself by proper locking