GRS Monarch QC User manual
PAGE 1 of 4 LIT-136
#004-921 & #004-926: Compatible GRS®systems include the GraverMach®AT, GraverMax®G8, GraverMach®,
GraverMax®SC, GraverSmith®, and Classic GraverMax®/ GraverMate®machines.
#004-921-ATSS & #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.
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 o
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).
Monarch™ QC & Monarch™ Airtact Handpiece
Instructions • #004-921, #004-926, #004-921-ATSS, & #004-952SS
LOCKING RING
Loosen rst FIG. 2
FIG. 1
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.
LIT-136 PAGE 2 of 4
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 spring and piston.
Loosen the locking ring and remove
it (FIG. 5). Grip the knob and turn the
handpiece body counter-clockwise
until it is out of the knob body (FIG. 6).
Now, with the handpiece
disassembled, clean the parts with a
NON-residue solvent like denatured
alcohol. Make sure the holes in the
handpiece body are clear from dirt
and debris. DO NOT get moisture
down the air hose. If this happens you
will need to clear and dry it before
reassembly.
Before reassembly, make sure every
thing is completely dry. DO NOT
OIL INSIDE THE HANDPIECE. NO
lubricant is required. Lubricant will
actually decrease performance!
Reassembly Note:
There is an O-ring inside the knob
that makes getting the handpiece
body to thread a little dicult when
reassembling. Use a very small
amount of synthetic lube or non-stick
grease and create a thin film around
the OUTSIDE of the shaft between the
threads and the end (see call out in
FIG. 7).
NOTE: Do NOT use petroleum based
oils - USE ONLY Synthetic oils. Fossil
oils can damage the O-rings.
See “Adjusting the Handpiece” on
page 1 for adjusting graver and hose
position.
VERY LIGHT
synthetic grease lm
END VIEW
Round ANVIL head toward spring
CROSS
SECTION VIEW
QUICK CHANGE HOLDER HINT
Synthetic Lube or non-stick grease on
the shaft of a quick change holder will
make them easier to slip in and out.
FIG. 7
FIG. 6
LOCKING
RING
FIG. 5
FIG. 4
Part # Description
002-950 8-32 X .13
002-605 Allen Wrench
002-590 O-Ring 1/2" ID X 1/16" Wide
004-803 Quick Change Chuck (complete with set screw)
004-415SS Handle Knob
004-416SS Locking Nut
004-417 Handpiece Body
Part # Description
004-929-V2 Chuck Receiver
004-422 Air Hose Retainer
004-423 Air Hose - 1/8" dia. X 38"
004-424 Spring
004-927-V2 Piston / Hammer
022-308 O-Ring 8 mm ID X 1 mm Wide
022-072 Tube Coupling
004-432 Urethane Tubing .170" I.D. X 10"
004-803 (INCLUDES SET SCREW)
004-424
004-432
004-927-V2
004-929-V2
022-308 004-417
002-590
004-415SS
004-423
004-422
022-072
004-416SS
002-590
002-605
002-950
LOOSEN
TURN COUNTERCLOCKWISE
TIGHTEN
TURN CLOCKWISE
FIG. 3
PAGE 3 of 4 LIT-136
044-233
044-303
022-072
004-432
023-029
044-130
004-423
004-422
002-590
004-417
004-416SS
004-927-V2
004-424
004-929-V2
004-948SS
023-024
004-803
002-605
044-110-E2-04
044-110-E2-06
044-110-E2-08
044-110-E2-10
111-006A
111-006B
111-006C
004-944
024-350
PART # QTY. DESCRIPTION
002-590 2 0-RING, 0.563" O.D. 0.438" I.D.
002-605 1 WRENCH, 5/64 ALLEN
004-416SS 1 LOCKING NUT
004-417 1 HANDPIECE BARREL
004-421 1 901 HAND PIECE RECEIVER
004-422 1 HOSE/BARB RETAINER
004-423 1 TUBING, PU CLR 0.156" O.D. 0.094" I.D.
004-424 1 SPRING, MONARCH STANDARD
004-432 1 TUBING, PU CLR 0.250" O.D. 0.170" I.D.
004-803 6 QC HOLDER
004-927-V2 1 PISTON ASSEMBLY
004-929-V2 1 WELDED MONARCH RECEIVER-V2
004-948 1 MONARCH PALM ELEMENT KNOB
022-072 1 TUBE COUPLING, 5/32
023-024 4 SHCS, #2-56 x 0.19" S/S
023-029 1 FITTING, M-0.063" I.D.TUBE F-LUER
024-350 6 2-56 x 5/16 FILLISTER
044-110-E2-04 1 PALM PAD, E2 #04
044-110-E2-06 1 PALM PAD, E2 #06
PART # QTY. DESCRIPTION
044-110-E2-08 1 PALM PAD, E2 #08
044-110-E2-10 1 PALM PAD, E2 #10
044-130 1 TUBING, PU CLR 0.125" O.D. 0.063" I.D.
044-233 1 BRAIDED SLEEVE, 0.250" O.D. NYLON
044-303 2 SHRINK WRAP, BLK 0.375” I.D.
111-006A 1 EASY AT PALMCAP, LIGHT
111-006B 1 EASY AT PALMCAP, MEDIUM
111-006C 1 EASY AT PALMCAP, HEAVY
Monarch™ Airtact Handpiece
PARTS LIST • #004-921-ATSS
Part # Description
002-950 8-32 X .13
002-605 Allen Wrench
002-590 O-Ring 1/2" ID X 1/16" Wide
004-803 Quick Change Chuck (complete with set screw)
004-415SS Handle Knob
004-416SS Locking Nut
004-417 Handpiece Body
Part # Description
004-929-V2 Chuck Receiver
004-422 Air Hose Retainer
004-423 Air Hose - 1/8" dia. X 38"
004-424 Spring
004-927-V2 Piston / Hammer
022-308 O-Ring 8 mm ID X 1 mm Wide
022-072 Tube Coupling
004-432 Urethane Tubing .170" I.D. X 10"
004-803 (INCLUDES SET SCREW)
004-424
004-432
004-927-V2
004-929-V2
022-308 004-417
002-590
004-415SS
004-423
004-422
022-072
004-416SS
002-590
002-605
002-950
Monarch™ Airtact Handpiece
PARTS LIST • #004-921
LIT-136 PAGE 4 of 4
022-072
044-110-E2-04
044-110-E2-06
044-110-E2-08
044-110-E2-10
111-006A
111-006B
111-006C
004-944
024-350
044-303
PART # QTY. DESCRIPTION
002-590 1 0-RING, 0.563"OD 0.438"ID
004-416SS 1 LOCKING NUT
004-422 1 HOSE/BARB RETAINER
004-423 1 TUBING, PU CLR 0.156"OD 0.094"ID
004-432 1 TUBING, PU CLR 0.250"OD 0.170"ID
004-948SS 1 MONARCH PALM ELEMENT KNOB
022-072 1 TUBE COUPLING, 5/32
023-024 4 SHCS, #2-56 x 0.19" S/S
023-029 1 FITTING, M-0.063" ID TUBE F-LUER
024-350 6 2-56 x 5/16 FILLISTER
044-110-E2-04 1 PALM PAD, E2 #04
044-110-E2-06 1 PALM PAD, E2 #06
044-110-E2-08 1 PALM PAD, E2 #08
044-110-E2-10 1 PALM PAD, E2 #10
PART # QTY. DESCRIPTION
044-130 1 TUBING, PU CLR 0.125"OD 0.063"ID
044-233 1 BRAIDED SLEEVE, 0.250"OD NYLON
044-303 2 SHRINK WRAP, BLK 0.375”ID
111-006A 1 EASY AT PALMCAP, LIGHT
111-006B 1 EASY AT PALMCAP, MEDIUM
111-006C 1 EASY AT PALMCAP, HEAVY
Monarch™ Palm Knob Kit
PARTS LIST • #004-952SS
900 Overlander Road • Emporia, KS 66801 USA
800-835-3519 • 620-343-1084 • Fax: 620-343-9640
Printed in USA. Products made in USA. All rights reserved. © 2020 Glendo LLC
Last Update: 2020/03/25
Please Note:
the Palm Pad
mounting screws
should only be
lightly snug; over-
tightening can
distort or damage
the pad.
Palm Pad
#004-940-ATSS & #004-957SS
Control Flap
Palm Pad #8
Moderate to heavy hand force
Palm Pad #10
Most hand force
Palm Pad #4
Least hand force
Palm Pad #6
Light to moderate
hand force
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