Diamond Products UDM - Manual (Page 15)

Water Jars
The primary jar is mounted on the water tank
next to the side dash unit and helps keep
water and other contaminates from being
sucked into the pump. The secondary jar is
located adjacent to the vacuum pump
behind the form right wheel of the machine.
Visually inspect and empty the containment jar
on a regular basis. The jars unscrews by hand.
Failure to empty this jar will result in vacuum
pump damage.
Primary Water Jar
Secondary Water Jar
Drill Mode
Introduction and Initial Settings: The following
items can only be used or adjusted with the
function switch in DRILL mode. The
recommended pressure settings are maximum
limits. They will typically only be reached
intermittently if rebar or hard spots are
encountered when drilling.
Cylinder Pressure
The cylinder pressure controls how hard the bit
pushes downward. The pressure is factory set
at 200 psi and should rarely need adjustments.
Monitor the cylinder pressure using the 500 psi
gauge on the main hydraulic manifold and
adjust to the factory setting as necessary.
1. Start the engine.
2. Move the function switch to Drill.
3. Turn off the Drill Rpm cartridge.
4. If no bit is attached to the machine, press the
Drill Down button to fully extend the cylinder. If
a bit is attached to the machine, place a sturdy
block of wood under the bit and press the Drill
Down button to push the bit against the piece
of wood (as if trying to lift the front end of the
machine).
5. Holding the Drill Down button, adjust the
Cylinder Pressure Base End valve on the main
hydraulic manifold to adjust the cylinder
pressure. DO NOT exceed 200 psi when drilling
without the vacuum. Note: Use caution and
good judgment when increasing the pressure
above 200 psi, which will increase the risk of
jammed bits.
6. Press the Drill Up button to raise the cylinder for
proper ground clearance.
Cylinder Speed
While holding the drill DOWN switch, turn the
small black knob at the top right of the main
hydraulic manifold. This sets the maximum
speed the drill can move (unless in TURBO
mode) and should be set to the slow end of
the adjustment, Slow speed is particularly
important at initial drill to ground contact. This
setting should rarely need adjustment.
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