Job Description:

• 1) Sets up hydraulic jacks used to raise precast concrete floors and roof slabs: Guides threaded lift rods, raised by STRUCTURAL-STEEL WORKERS, through holes in jack frames.

• 2) Slips lift nut over end of rod and inserts hinged nut to fasten lift rod onto jack.

• 3) Mounts hydraulic motor to jack, using handtools.

• 4) Fits drive chain around gears on motor and lift nuts.

• 5) Pulls idler gear arm to adjust tension of drive chain and bolts it in position.

• 6) Snaps hose fittings and electric wiring in place to connect jacks to control panel and pump.

• 7) Observes performance of jacks during lifting operations and signals LIFT-SLAB OPERATOR when malfunction occurs.