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LIT-136
ADJUSTING THE HANDPIECE
The handpiece knob and
the body (barrel) are
threaded together, allowing
the hose to be rotated
to the position the user
prefers. The length of the
handpiece can be extended
by unscrewing the knob and
body even more. NOTE: Extending the length may
cause a slight loss of power depending on the type
of work being done.
With the locking ring slightly loose, the handpiece
body and knob can be turned independently. Position
the Quick Change holder with the graver “point”
down and rotate the knob until the hose position is
the most comfortable. Once the hose and graver are
both positioned comfortably, tighten the locking ring.
HOW TO ATTACH NEW HOSE
Loosen the locking ring and remove the knob from
the handpiece. Remove the
old hose simply by cutting it
off close to the knob. With
a small punch, push the
hose/brass fitting back into
the knob body. Remove the
brass fitting (#004-422 Air
Hose Retainer) from the
old hose. Feed the new air
hose through the hole in the
knob
(FIG. 1). Insert the brass
fitting into the end of the
hose making sure it is fully
seated. Moistening the
fitting first may help it slip
into the hose easier. Then
apply a small amount of
moisture or oil around the outside end of the hose
next to the brass fitting and pull the hose back
(FIG. 2) into the knob until you see the tip of the
brass fitting protrude through the side of the knob.
This must be an air tight fit, so you will have to pull
somewhat hard (a few pounds, at least).
PUTTING A FLAT ON THE
BOTTOM OF HANDPIECE KNOB
(If Desired) If you choose to put a flat on the knob
you should use the handpiece first to be sure where
the hose “exit” is most comfortable for you. Note
critical dimensions below and warnings below.
IMPORTANT: IF TOO MUCH MATERIAL IS
REMOVED, KNOB WILL BE RUINED. (PART
#004-415) NOTE: Any damage from adding a flat to
the knob is NOT covered by the warranty.
MAINTENANCE
The only basic maintenance for the GRS Monarch
Handpiece is keeping it clean on the inside.
Problems will occur if oil or moisture gets into the
handpiece, especially on the piston. If you notice
a loss of power or erratic performance, the FIRST
THING to check is to make sure the RECEIVER
(chuck) IS TIGHT IN THE HANDPIECE BODY.
Using a crescent wrench or pliers with a graver
inserted in the QC Holder, gently tighten receiver
clockwise (FIG. 3) If erratic
performance continues, then
disassemble and clean the
handpiece.
To disassemble the
handpiece, use the crescent
wrench or pliers to grip the graver (FIG. 3) and turn it
counterclockwise to loosen the chuck retainer. After
loosening, turn the chuck retainer out with your finger
tips (FIG. 4). As you pull out the chuck, there will be a
Monarch QC & Monarch Airtact Handpiece
INSTRUCTIONS
#004-921 & #004-926: Compatible GRS systems include the GraverMach AT, GraverMax G8, GraverMach, GraverMax
SC, GraverSmith, and Classic GraverMax / GraverMate machines.
#004-921-AT, #004-921-ATSS, #004-952, & #004-952SS: Compatible GRS systems include GraverMach AT, or an
Airtact Control System (#004-935) connected to a GraverMax G8, GraverMach, GraverMax SC, GraverSmith, or Classic
GraverMax / GraverMate (with Airtact Filter Hook Up Kit) machines.
LOCKING RING
Loosen first
FIG. 2
FIG. 1
LOOSEN
TURN COUNTERCLOCKWISE
TIGHTEN
TURN CLOCKWISE
FIG. 3
NORMAL OPERATING RANGE
11-14 psi (0.7-0.9 bar) / 2400 - 4000 strokes per min.
RECOMMENDED INITIAL SETTING
12 psi (0.8 bar) / 3600 strokes per min.
