Hydraulic hook-lifts
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MULTILIFT Ltd of Harlescott Industrial Estate, Shrewsbury, has developed its own hydraulic lifting system to compete in the growing market of single-hook-arm demountable body systems.
Two hook-lift models, HL12 and HL16, have been designed specifically for twoand three-axled commercial vehicle chassis, providing lifting capabilities of 12 and 16 tons respectively.
Operation is controlled from within the cab with the hook continuously in view, allowing minor steering manoeuvres to be made while attached. To minimise the incline of the body during loading and to produce better stability, the hook-arm has been made to pivot from the main frame. With a standard 16ft body the HL12 maximum mounting angle is about 26°, while the LHL16 with a 20ft body, the same angle is 24°.
Power for the hydraulic system is taken from a gearboxmounted pto, driving a Han'worthy gear pump which produces an operating pressure of 25,304kN/sqm (3,670Ib/sqin). Full body interchangeability is possible with all equipment of a similar type. Twin doubleacting main rams are located between the main front crossmember and the middle tipping frame to provide the facility for both lifting and tipping.
All three-axle vehicles are fitted with a rear-mounted hydraulic stabiliser, separately controlled, to give the driver maximum operational flexibility.