allen BDF4836B, Инструкция по безопасности и эксплуатации

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11. ROLLER TAMPER
- The ACP Roller Tamper is an option that
provides a means of achieving a more uniform concrete surface
with the desired density. It seals difficult to finish concrete, due
to harsh mix design, low slump specifications and wind exposure,
causing abnormal surface drying and unforeseen delays.
Place a four foot level under the paving rollers and under the
Roller Tamper’s finned rollers. Loosen the locking set screws and
the lock nuts for the roller pitch adjustment on both sides of the
Roller Tamper. Normally the front and back of the finned rollers
are set to grade.
The Roller Tamper finned rollers are vertically adjustable
from 1/2 inch above concrete grade to 3/4 inch below concrete
grade. The depth of penetration can vary according to job require-
ments. Pitching the front end of the rollers allows the Roller Tamper
to remain parallel to the concrete grade when the rear of the
machine is raised with the leg cranks. Maximum recommended
depth is 3/16 inch.
To check vibration levels use the Vibra-Tak provided and follow
instructions. Run the vibrator at the speed that does the best job of
keeping the fins of the rollers clean. Normally 3500 to 5000 VPMs is
a good operating speed.
Do not exceed 5000 VPMs
.
Roller Tamp Speed
SECTION 2
OPERATIONS
050362 Page 36
2.5 - Machine Setup, continued