spanesi BTPLUS Manual De Instrucciones De Uso Y Manutención página 59

PONYBENCH BTPLUS is used as a car workshop lift, and is designed to accommodate a pull system.
The base structure (1- fi g. 4), to which all stresses are transmitted, is in welded steel. This structure is located in a fl oor-
pit, and houses the supports, the runners of the sliding wheels, the scissor arms, and the stops in which the safety hook
stop engages (9- fi g. 4). The upper mobile platform (5- fi g. 4) consists of a welded steel structure specially constructed
to house the 4 adjustable supports (2- fi g. 4) to sustain the adjustable rubber pads (3- fi g. 4) on which the vehicle body is
rested in order to be lifted. The lifting system consists of a single-acting hydraulic jack (6- fi g. 4) driven by a gear-pump.
The jack acts on a pair of arms (7- fi g. 4) which control the movement of the lifting platform. The lift's ascent and descent
operations are controlled from a control unit console (4- fi g. 4), which, by means of an electro-hydraulic control unit,
activates a gear pump housed inside the control unit console itself. The pump pressurises a hydraulic circuit that drives
the extension and retraction movements of the lifting jack rod. The hydraulic circuit has a pressure relief valve and a
safety lock valve, which operates if the fl exible pipe breaks.
The electric cables connecting the lift to the control panel, and the fl exible pipes which convey the oil of the control unit
and compressed air to the lift, are housed in an underground protective sheath (not supplied as a standard item). The
upper mobile platform of the lift is kept in position by a safety hook (9- fi g. 4) automatically controlled by a pneumatic
cylinder (8- fi g. 4) which, as the lift descends, engages a set of steel blocks welded onto the base plate. A travel limit
microswitch (10- fi g. 4) obliges the operator to effect descent in two stages: the fi rst from a max height of about 30-35
cm off the fl oor, and the second until the mobile platform is fully down in the pit. The arm securing rods (11- fi g. 4) anchor
the arms to the platform during pulling operations.
The securing screws (12- fi g. 4) of the support arms must all be tightened with the manual wrench before attempting
any pulling.
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Figure 4
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