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WS1694
11-2018/Rev.C
104 S. 8th Ave. Marshalltown, IA Phone 800-888-0127 / 641-753-0127 • Fax 800-477-6341 / 641-753-6341 www.
MARSHALLTOWN
.com
ASSEMBLY GUIDE
Instructions for installing Roller Screed ends:
Live end installation. The end assemblies must be installed very firmly in the Roller Screed tube so
that they will not come out during use. At least 60 to 70 ft-lbs of torque must be used when installing
the ends.
FIRST: Remove the allen head set screw from the live end assembly.
SECOND: Grip each of the aluminum tapered discs with your hands and spin each end of the
assembly so that the rubber gasket swells up between the aluminum discs. Tighten the assembly
until the gasket swells up to the point so that when it is slipped into the tube there is some friction
between the rubber gasket and the inside of the roller tube. When you have done this, you will be
able to tighten the assembly with a pipe wrench mounted on the knurled portion of the universal joint
assembly. During the initial tightening phase, you will also need to hold the outside exposed edge of
the aluminum assembly with one hand so that it does not rotate inside of the tube. As soon as the
rubber gasket has a good grip inside of the tube, you can then hold one hand on the chain clamp vise
grip and the other hand on the pipe wrench and tighten very tightly. It is impossible to hold the tube
firmly enough to produce the necessary toque without using some mechanical means. Simply having
a co-worker hold the tube with their hands while you tighten the end with a wrench will not produce
the necessary torque. You may tighten this to the point where the inner beveled components of the
live end assembly come in contact with one another. You will feel the bolt you are tightening “bottom
out” and can no longer be turned. Back the bolt off to the nearest slot and insert the allen head set
screw. Installing the allen head set screw completes the installation of the live end and allows the
electric power head to be operated either in the forward or reverse direction without the assembly
becoming unthreaded. The electric power head has been set as the factory to the proper speed of
300 rpm. Never attempt to operate at a higher rpm.
The dead end can simply be tightened with an open end wrench as shown in photo N after following
the “hand tighten” procedure outlined above. The dead end should be lubricated from time to time
using the grease zerk.
