Stone WolfPac 3100 - Eccentrics; Asphalt Compaction Tips

- 22 -
3. OPERATION
3.16 ECCENTRICS
When vibratory compaction is necessary, engage
eccentrics by pushing the vibration switch to the ON
position. For best performance, run engine at full
RPM. The eccentrics should be turned off whenever
the roller is stopped, or stopped to change direction.
Do not run the eccentric on any non-yielding surface,
such as concrete or aged asphalt.
3.17 ASPHALT COMPACTION TIPS
• Make sure drums are coated with just enough
water to prevent asphalt sticking to the drums.
• Two passes should be sufficient if the asphalt
temperature is about 285 degrees F or greater.
• Do not let asphalt stand for an extended time
before rolling.
• As soon as the asphalt will support roller
without shoving or causing excessive
movement of the mat, the operator may
proceed with the breakdown pass. If the mat
shows cracks or splits perpendicular to the
roller path, let mix cool 3 to 5 minutes before
continuing.
• Whenever possible, back roller towards paver
so that static drive roll proceeds the vibrating
front roll.
• Always stop vibratory unit before roller comes
to a standstill to avoid ridging the mat.
• Change directions and speed slowly to avoid
tearing the mat.
• Reduce engine RPM if vibratory roll
"bounces" or is "erratic" to avoid over
compacting the asphalt and damaging the unit.
WolfPac
TM
3100 / WolfPac
TM
3100R
•
To assist edge compaction and confinement,
leave 4" uncompacted and allow to cool
slightly before finishing.
• When possible, begin breakdown pass
downhill and return uphill on same pass before
moving over to next pass.
• Compact on low edge first making breakdown
pass and immediately reversing on breakdown
pass before moving toward high edge of the
second pass.
• On cool, thick, or coarse mats, make as many
intermediate and finish passes as necessary to
achieve desired compaction and surface finish
but avoid over-compaction (aggregate
fracturing).
• A general guideline for maximum lift:
Dirt: 6”
Asphalt: 3”
Avoid sharp turns, steer gradually. If articulation is a
new concept, we suggest the operator to take 20
minutes or so to get used to the feel of the unit.
Recommended asphalt rolling should be at 3 m.p.h. or
less to achieve a uniform mat. Slow the paver down
rather than speed up the roller.
NOTE: Depressions in the mat will occur if the roller
is left standing on it. When roller needs to be stopped
for refueling, maintenance, etc. remove from fresh
asphalt.