Marshalltown Truss Screed - Manual (Page 12)

12
OPERATIONS
SECTION 1
The following figures describe the proper instructions for correctly assembling engine driven screed. Make sure that you follow the
instructions in order. If the assembling of your screed is not done in this order, there could be some problems in trying to maintain floor
flatness because your screed is not level. Levelness of your screed is critical!
SECTION ASSEMBLY
STEP 1: Screw jam nuts onto top pipe. Start the top pipe coupler
onto the top pipe of the mating truss section. Only thread the
coupler on about three turns.
NOTE: The right and left hand jam nuts will already be installed
on the screed section.
TIGHTEN JAM NUTS AFTER SCREED IS LEVEL
STEP 2: Slide screed sections together until top pipe
threads on screed marked “R” line up with threads in
coupler on the screed. Start coupler on adjoining threads
by hand to prevent cross threading.
STEP 3: Bearing support bolts should be loose so
that splice plate can move in clearance holes. With 15”
adjustable wrench, turn top pipe coupler until screed
and bull float blades contact, then back the coupler off
slightly so that the blades touch without tension.
STEP 4: Tighten bolts on splice plates. Next slide the
shaft coupler onto the adjoining section and tighten the
set screws provided. Make sure that the 3/16 key is on the
shaft before sliding sections together. Repeat these steps
for attaching all engine driven screed sections.