There
are four rollers fitted at front
side which are physically lowered
or raised by trigger lever built
in handle bar, at the time of loading
and unloading. At the time of carrying
beam four rollers remains steady
and vertically rolling on floor.
Sturdy triangular shape supports
are fabricated lengthwise across
the trolley which holds the beam
flanges at the time of transport.
Both the triangular supports are
spaced in a such a way that when
the beam is resting on ground the
triangular supports easily goes
underneath the beam flanges and
lifts up the beam with the help
of hydraulic operation.
Back end of the trolley is fitted
with hydraulic unit along with handle
bar which has also built in hydraulic
cylinder. Two guiding wheels of
UHMW (Special Synthetic Material)
are fitted with a pair of ball bearings.
All the moving parts which are under
load are fitted with suitable sizes
of bearings. In all there are fourteen
nos. of bearings fitted in the trolley
which makes very easy and comfortable
movements.
WORKING OPERATIONS
The operator pushes the trolley
underneath the beam and lifts up
the beam completely with the help
of hydraulic operation over triangular
supports. The triangular supports
are locked with the help of cross
rod connected to triangular supports
at the end and pulls the trolley
for transportation. At the time
of unloading the operator releases
the trigger lever which drops the
beam from triangular supports on
the ground.
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