7
DK4100 and 5100 continued
Feed Rate Flow Control
The Feed Rate Control Valve allows the user to adjust the speed at
which the drill bit advances into the material. The factory setting
of this valve will maintain a consistent feed rate for various thick-
nesses of different materials to optimize Drill Bit life. The Feed Rate
Control Valve should only be adjusted when a faster or slower rate
of Drill Bit feed is desired. This adjustment is only recommended for
experienced users that consistently drill the same thickness of the
same type of material on a daily basis. The Feed Rate Control Valve
is adjusted by loosening the Locking Collar and rotating the Screw
in the direction of the desired change in feed rate. “F” corresponds
to a Faster feed rate, “S” corresponds to a Slower feed rate. Make
certain to tighten the Locking Collar to prevent the Screw from ac-
cidentally drifting or vibrating out of adjustment
Clamping Duration Control
Clamping Duration Control allows the user to adjust the duration
that the pneumatic clamp engages the material before, during,
and after the drilling operation is performed. The factory setting
of this valve will maintain the correct amount of time that the
material is clamped while drilling. If the work piece lifts off of the
Drill Guide Plate during drilling then the Clamping Duration Control
will need to be adjusted. Loosen the Locking Collar and turn the
Screw in the clockwise direction to increase the duration (more
clamping time). Turning the Screw in the counter-clockwise direc-
tion decreases the duration (less clamping time). Make certain to
tighten the Locking Collar to prevent the Screw from accidentally
drifting or vibrating out of adjustment.
Air System Prefi lter
An Air System Prefilter is provided to maintain a clean, moisture-free
supply of compressed air to the machine. The Air System Prefilter
reservoir should be routinely drained of moisture. To drain moisture
from the reservoir either push the drain valve up toward the reser-
voir or to the side to use system air pressure to drain the collected
fluid. If the Air System Prefilter reservoir needs to be removed to
clean or replace the filter, make certain your machine is DISCON-
NECTED from the AIR SUPPLY. Cycle the machine via the foot switch
several times to remove air from the system.
Air System Lubricator
An Air System Lubricator is provided to maintain proper lubrication
to the pneumatic motors. The Air System Lubricator is filled with
air motor oil and the Air System Lubricator comes preset at 1/2
turn open. The oil level in the Air System Lubricator should be rou-
tinely checked and refilled with air motor oil comparable to the oil
provided. Normal use of the machine will cause a light film of oil to
accumulate on the underside of the Top Plate where the pneumatic
motor exhausts. Make certain your machine is DISCONNECTED from
the AIR SUPPLY when filling the Air System Lubricator. Cycle the
machine via the foot switch several times to remove air from
the system.
Screw
Locking
Collar
Drain
Lubricator
Fill Cap
Locking
Collar
Screw
