HENR
Y
T
OOLS,
INC.
Ph: (216) 291-1011 or (800) 826-5257
General Operators Instructions and Service Manual
www.HenryTools.com | Page 250
Revised 04/11/11
For additional product information visit our website.
MODEL
4123GL
6”
PART NUMBER DESCRIPTION
209-1
COLLET NUT
209-1/8
1/8” INSERT
209-3/16
3/16” INSERT
209-1/4
1/4” INSERT
209-3/8
3/8” INSERT
400-G-26
THROTTLE LEVER
400-G-29
THROTTLE VALVE
(INCLUDES 844302)
400-G-34
SPRING
400-2G
CYLINDER
400-6
BLADE (4 REQ.)
400-44
ROLL PIN
400-51
0-RING
402-126
SAFETY LEVER
402-127
SAFETY LEVER PIN
402-128
LOCKOUT LEVER
402-129
SAFETY LEVER SPRING
402-132
ALUMINUM CASE specify speed
402-132-S
“STEEL CASE
(SPECIFY SPEED)”
402-134
MUFFLER
403-7
FRONT ENDPLATE
403-38
FRONT MOTOR RETAINER
404-9
REAR BEARING
404-19
REAR ENDPLATE
404-38
BEARING COVER
404-39
SNAP RING
410-G-17-S
“STEEL SIDE EXHAUST
SLEEVE”
700-37
THROTTLE LEVER PIN
1100-672
STANDARD COLLET BODY
1100-678
EXTENDED COLLET BODY(+6)
4031-5A
ROTOR/SPINDLE
4031-5R
ROTOR SPACER
590031
FRONT BEARING
591106
SET SCREW
(SPECIFY SPEED)
592016
SNAP RING
594016
0-RING
832636
GASKET
841552
3/8 NPT TO 3/8 NPT BUSHING
PART NUMBER DESCRIPTION
841553
3/8 NPT TO 1/4 NPT BUSHING
844302
0-RING
869311
THROTTLE VALVE CAP
ASSEMBLIES
PART NUMBER DESCRIPTION
510206
REPAIR KIT Model 4123Series
402-26
SAFETY LEVER ASSY.
AA-402-132
ALUMINUM CASE ASSY.
AA-402-132-K ALUMINUM SAFETY CASE AS-
SEMBLY.
AA-402-132-S STEEL CASE ASSEMBLY
AA-402-132-
SK
STEEL SAFETY CASE ASSY.
WRENCHES
1100-068
11/16” WRENCH
1100-075
3/4” WRENCH
SAFETY
1. Before operation check spindle speed with a tachom-
eter. If the RPM’s exceeds the rated speed stamped on tool,
servicing is required. For safety reasons and product liability
prohibit any modifications to tools.
2. Inspect carbide burrs or mounted points for bends, chips,
nicks, cracks or severe wear. If they have any of these prob-
lems do not use. On brushes check for loose wires that may fly
off in operation.
3. Start new mounted points or burrs under a steel bench.
Run at full throttle for one minute.
4. The 4123 series die grinders are intended for use with
Burrs/Mounted Stones of shank size 1/8 inch, 1/4 inch, 5/16
inch, 3/8 inch, 3mm, 6mm, 8mm. only. They are NOT guarded
for type 1 wheels. If you have a type 1 wheel application,
please purchase a different model tool.
5. At least one-half of the mandrel length (i.e. mounted
wheel, burr, etc.) must be inserted into the collet. Secure collet
chuck tightly.
6. Safety levers are available from the manufacturer (402-
26).
7. Before mounting or removing a Burr/mounted point dis-
connect the grinder from air supply. Wear safety goggles and
other protective clothing (when necessary).(See regulations.)
8. Properly maintained air tools are less likely to fail or
cause accidents. If tool vibrates or produces an unusual sound,
repair immediately.
6” Model with super extended
length spindle shown above.
