The control valves have integral relief protection and all cylinders are equipped with holding valves. The hydraulic system starts with a tandem gear pump (25gpm/15gpm) that supplies hydraulic fluid to the control panel which can be operated from either side of the chassis, putting the operator always in a safe postion to operate the crane. This crane is an efficient material lifting device with easy to service components. Hydraulic tank built into one of the operator platforms = space saver.Rotek type heavy duty slewing ring c/w eccentric ring backlash adjustment.Hydraulic planetary winch, 7000 lbs, turret mounted.Wireless anti-two block (A2B) shutdown protection system.Due to its compact physical mounting size, its full-fledged crane features, and its economical installation costs on a customer chassis, it still survives today as a Weldco HL 848 (3 stage boom) or as a Weldco HL858 (4 stage boom) and maintains the original design features while updating to current requirements.
Undoubtedly the most popular oilfield crane of all time. The Weldco-Hydra-Lift HL800 series Truck Mounted Crane has its roots in the 70's as an HL160 Pitman Hydra-Lift.
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