allen BDF4836B, Инструкция по безопасности и эксплуатации

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2. ROLLER ROTATION
- The two paving rollers can rotate in the
same direction (either clockwise or counter clockwise) or they
can rotate in opposite directions. At the beginning of a pour it
is recommended that you rotate the rollers in the same direction
for the first couple of passes. Using the roller directional valves,
position the two valve levers in the same direction. Facing the
augers, both rollers turn clockwise when the carriage travels to
the left and counter clockwise when the carriage travels to the
right. Put the automatic roller reversing valve in the “Reversing”
position. The “Reversing” position will change the roller direction
with each pass of the carriage. After a couple passes, change the
direction of one roller. Which one will depend on the direction of
the carriage travel. Put the automatic roller reversing valve in the
“Non-Reversing” position. The “Non-Reversing” position does not
change the roller direction with each pass of the carriage. Facing
the augers, the right roller turns clockwise and the left roller turns
counter clockwise. This allows the leading roller to consolidate
the concrete and the trailing roller to pave the surface. Normally,
when pouring a flat bridge deck or slab, this roller rotation will
provide the best overall production and sealed finish. However,
due to “mix”, slump and other concrete variables, one roller rota -
tion option may work better than another. The paver’s automatic
pivot device will keep the excess material that the paving rollers
carry moving out the front of the paving rollers instead of trailing
off to the rear of the paving rollers. The pivot device can be adjust-
ed for quickness by turning the set screws on the automatic roller
reversing valve.
3. SUPER ELEVATIONS - When paving super elevated slabs, bridge
decks or skewed decks both rollers must be turning in the same
direction and the automatic roller reversing valve should be set
in the “Non-Reversing” position. The concrete should be pushed
from the low side to the high side of the elevation and roll over the
concrete going down the super elevation. The roller direction will
depend on the direction of the pour and what side is the high side.
SECTION 2
OPERATIONS
050362 Page 43
2.7 - Paving Operations, continued