Multiquip WRS5200 (ORIGINAL COPY) - Manual (Page 18)

page 18 — wrs5200 hydraulic roller screed • operaTion manual — rev. #0 (10/22/10)
General infOrMatiOn
The MQ WRS5200 Ride-On Roller Screed is a self-
propelled SuperScreed that is hydraulically driven and
requires only one operator, two laborers and two concrete
placers. The screed is expandable from 14 ft. (4.26 m) to
52 ft. (15.84 m).
Before packaging and shipment, this MQ Ride-On Roller
Screed was run and tested at the factory. If there are any
problems with the screed, please contact the nearest MQ
service center.
The purpose of the roller screed is to strike off the surface
of the concrete at a predetermined grade. The rollers on
the screed ride on steel tube rails, allowing the strike tube
to work the concrete to the desired grade.
The strike tube rotation should always push the concrete
forward into areas that have not yet recived the concrete.
Depending on the slump of the concrete, several passes
might be required for the right strike off grade.
Some applications the screed can be used for are
suspended slabs, slabs on grade, tilt-up panels, roads,
post-tension slabs, bridges, elevated decks, runways,
highway rehabilitation and white topping.
strike Tube
A highly efficient strike tube precisely levels the concrete
surface to grade. Multiquip's advanced strike tube design
leaves aggregate at the surface for harder, longer wearing
slabs and can strike off concrete with slumps as low as
1-inch (2.54 cm.).
Strike tubes are available in various lengths. For available
strike tube lengths, reference Table 9. Strike tubes are a
critical component of the roller screed. If the strike tubes
are damaged, it is possible they will not turn true (rotate
correctly).
NOTICE
Read all instructions carefully before operating screed.
Improper setup, use or maintenance of the equipment
could result in personnel injury or damage to the
equipment.
NOTICE
Care should be taken to store reserved (not used) strike
tubes on a fully supported level surface. never lift the
screed from the strike tubes.
Truss sections
The SuperScreed is composed of truss sections which
vary in length from 3 ft. (1 m) to 9 ft. (2.75 m). These truss
sections support the strike tube which runs along the front
of the screed.
Some truss sections come with different end plates, the
same type of end plate should never be bolted together. See
Table 9 for the various truss and strike tube combinations
to acheive the desired screed length.
drive Tubes
The screed is equipped with two sets of independently
controlled rubber-coated drive tubes. These drive tubes are
located at each end of the screed (operator end/powerunit
end) and are controlled by two separate control levers.
Since the drive tube levers are independent of each other,
one set of drive tubes can travel forward, while the other
set of drive tubes travels backwards. Using the levers in
this way lets the operator steer the screed.
caster wheels
Two sets of pneumatic wheels provide easy manuvering
when placement of the screed onto rails or forms is
required.
Jack system
The SuperScreed is height adjustable by means of four
separate jack assemblies. These jack assemblies have a
crank handle that allows the operator to raise and lower
the screed.
power unit
The power unit is powered by a 26.5 HP Briggs and Stratton
(Vanguard) diesel engine. Coupled to the diesel engine is a
hyraulic drive pump which provides the hydraulic pressure
necessary to rotate the drive and strike tubes.
engine control Box
Provides vital engine status information via LED's. Ignition
switch, light switch, emergency stop switch and hour meter
are contained within the control box.