Henry Tools 47 GL Guide

The Henry Tool Co., Manufactured by Henry Tools
498 So. Belvoir Blvd., South Euclid, OH 44121 U.S.A.
Ph: [phone] or [phone] ● Fax: [phone] or [phone]
Email: [email protected] ● Website: www.Henrytools.com
H ENRY T OOLS H ENRY T OOLS
Industrial Airtools at Work
CAPACITY
-2 Inch (50mm), 3 Inch (75mm) or 4 Inch (100mm) Type 1 wheels .
NOTE: GUARD IS REQUIRED if you have a grinding wheel applica-
tion.
- Burrs/Mounted Stones of shank size 1/4 Inch, 3/8 Inch.
- Any Type 16, 17, 17R or 18R Cone Wheel with 3/8-24 mounting
General Safety and Maintenance
Manual
MODELS
47 GL
47 GLS
47 GLSK
Model
Number
Exhaust
Direction
Spindle Type Throttle
Type
Speed Power
Output
Case
Material
Weight Length Body
Diameter
Air
Consumption
Aluminum Steel
47GL Front or
Side (Side is
Standard)
3/8-24 X 1.0
Inch
(3/8-24 X
25 mm
(L) Lever
or
(K) Safety
Lever
9000-15000
R.P.M.
(18000PM is
standard)
0.9 H.P
.675 W
(S) Steel or
Aluminum
1.6 Lb.
(0.7 Kg)
13.1 Inch
(334 mm)
1.8
inches
(46 mm)
25 cfm
(11.8 L/S)
47GLS 2.1 Lb.
(0.9 Kg)
MULTIPLE ACCESSORIES

HENRY TOOLS, INC. Ph: [phone] or [phone]
General Operators Instructions and Service Manual
www.HenryTools.com | Page 143
Revised 04/24/10 For additional product information visit our website.
MODELS
47 GL
47 GLS
47 GLSK

HENRY TOOLS, INC. Ph: [phone] or [phone]
General Operators Instructions and Service Manual
www.HenryTools.com | Page 144 Revised 04/24/10
For additional product information visit
our website.
MODELS
47 GL
47 GLS
47 GLSK
PART NUMBER DESCRIPTION
400-G-4-GL ALUM. GOV. BACKHEAD
400-G-4-GLS STEEL GOV. BACKHEAD
400-G-11 FRONT BEARING
400-G-14-TSG GOVERNED SPINDLE
400-G-17 ALUM SIDE EXHAUST SLEEVE
400-G-17-S STEEL SIDE EXHAUST SLEEVE
400-G-26 THROTTLE LEVER
400-G-34 SPRING
400-G-42 FLANGE FOR 2”-3” WHEELS
400-G-47 3/8-24 NUT
400-2G CYLINDER
400-3 REAR ENDPLATE
400-5 ROTOR
400-6 BLADE (5 REQ)
400-7 FRONT ENDPLATE
400-9 REAR BEARING
400-9W WASHER
400-10 KEY
400-44 ROLL PIN
400-46 SNAP RING
400-51 O-RING
402-126 SAFETY LEVER
402-127 SAFETY LEVER PIN
402-128 LOCKOUT LEVER
402-129 SAFETY LEVER SPRING
402-134 MUFFLER
400-G-1 ALUMINUM CASE
400-G-1-S STEEL CASE
400-S-38 ALUMINUM MOTOR RE-
TAINER
400-S-38-S STEEL MOTOR RETAINER
500-G-44 FLANGE FOR 3”-4” WHEELS
700-37 THROTTLE LEVER PIN
832636 GASKET
834782 THROTTLE VALVE-INCLUDES
844302
841552 3/8 NPT TO 3/8 NPT BUSHING
841553 3/8 NPT TO 1/4 NPT BUSHING
844302 O-RING
869311 THROTTLE VALVE CAP
490-3 PIN SPANNER
1100-050 1/2” WRENCH
1100-056 9/16” WRENCH
PART NUMBER DESCRIPTION
1100-075 3/4” WRENCH
GOVERNORS
PART DESCRIPTION
AA-400-70 GOV.ASSY. (7000 RPM)
AA-400-80 GOV.ASSY. (8000 RPM)
AA-400-90 GOV.ASSY. (9000 RPM)
AA-400-100 GOV.ASSY. (10000 RPM)
AA-400-120 GOV.ASSY. (12000 RPM)
AA-400-150 GOV.ASSY. (15000 RPM)
AA-400-180 GOV.ASSY. (18000 RPM)
AA-400-200 GOV.ASSY. (20000 RPM)
ACCESSORIES
PART DESCRIPTION
400-76J 9/16 UNTHREADED SPACER
400-76J-3/8 3/8 UNTHREADED SPACER
400-77 3/8-24 THREADED 9/16
SPACER (FOR C/W) (THIS IS
THE CONEWHEEL ADAPTOR)
400-77J 3/8-24 THREADED 3/8
SPACER
400-78 3/8-24 TO 5/8-11 ADAPTER
AA-209-1/8 3/8-24 ERICKSON 3
PIECE--1/8” INSERT
AA-209-3/16 3/8-24 ERICKSON 3
PIECE--3/16” INSERT
AA-209-1/4 3/8-24 ERICKSON 3
PIECE--1/4” INSERT
AA-209-5/16 3/8-24 ERICKSON 3
PIECE--5/16” INSERT
AA-209-3/8 3/8-24 ERICKSON 3
PIECE--3/8” INSERT
HT-1010 3/8-24 TO 1/4” I.D.- 2 PIECE
HEAVY DUTY
HT-1010-3/8 3/8-24 TO 1/4” I.D.- 2 PIECE
HEAVY DUTY
209-B 3/8-24 COLLET BODY
209-1 COLLET NUT
209-1/8 1/8” INSERT
209-1/4 1/4” INSERT
209-5/16 5/16” INSERT
209-3/8 3/8” INSERT

HENRY TOOLS, INC. Ph: [phone] or [phone]
General Operators Instructions and Service Manual
www.HenryTools.com | Page 145
Revised 04/24/10 For additional product information visit our website.
MODELS
47 GL
47 GLS
47 GLSK
PART NUMBER DESCRIPTION
510075 REPAIR KIT : Includes (1)400-
G-11 Bearing, (1)400-9
Bearing, (5)400-6 Blades,
(1)832636 Gasket.
402-26 SAFETY LEVER ASSY.
AA-400-G-4-GK GOV. ALUM. SAFETY BACK-
HEAD ASSY.
AA-400-G-4-GL GOV. ALUM. BACKHEAD
ASSY.
AA-400-G-4-GLS GOV. STEEL BACKHEAD ASSY.
AA-400-G-4-GSK GOV. STEEL SAFETY BACK-
HEAD ASSY.
SPECIFY SPEED FOR BACK-
HEAD ASSY
Disassemble
1. Disconnect air and remove all burrs, wheels and accessories.
2. Secure tool in vise vertically with output of tool oriented toward upward
direction. Clamp onto the ats toward the rear of the backhead.
3. Unscrew motor retainer (400-S-38-S) from motor housing (400-G-1{S}).
Lift o exhaust deector (400-G-17-S), exhaust screen (402-134) and o-ring
(400-51) from motor housing. Remove motor from housing. Remove from
vise.
4. Secure motor assembly into vise vertically with output in the downward
direction. Clamp onto ats on the spindle (400-G-14-TSG).
5. Remove governor (AA-400-XX) carefully. NOTE: (Left-Hand Thread).
6. Remove washer (400-9W).
7. Install brass jaws on vise. Secure motor assembly into vise vertically with
output toward downward direction. Clamp lightly the outside diameter of
the cylinder (400-2G) and endplate (400-3).
8. Use a 3/16” punch to tap spindle out of rear bearing (400-9). Be careful
not to drop the motor assembly when it is free. Remove from vise.
9. Use a small punch to press the rear bearing from the rear endplate.
10. Remove 5 blades (400-6) and the rotor (400-5)
11. Remove key (400-10) and front endplate (400-7) from spindle.
12. Remove retaining ring (400-46) with snap ring pliers.
13. Support spindle assembly vertically on a suitable drill block. Press bear-
ing (400-G-11) o of spindle with an arbor press.
14. (OPTIONAL): Unscrew and remove the throttle valve cap (869311). Lift out
throttle valve spring (400-G-34) and throttle valve (400-G-29). Replace o-ring
(844302) if worn or torn.
Assembly
1. Clean all parts.
2. Support front bearing (400-G-11) on a suitable drill block. Press the
motor spindle (400-G-14-TSG) through bearing (400-G-11)until it bottoms on
the shoulder of spindle with an arbor press.
3. Place retaining ring (400-46) into groove in spindle with the use of snap
ring pliers.
4. Slide front endplate (400-7) over spindle and
onto front bearing (400-G-11).
5. Secure motor assembly into vise vertically
with output in the downward direction. Clamp
onto ats on the spindle.
6. Place key (400-10) in keyway of spindle.
7. Slide rotor (400-5) over spindle and align slot
of rotor with key.
8. Place 5 blades (400-6) into rotor slots.
9. Slip cylinder (400-2G) over rotor. The small pin
on face of cylinder should face upwards.
10. Install rear endplate (400-3) onto top of
cylinder. Make sure cylinder pin is lined up inside
smallest hole of rear endplate (400-3).
11. Place bearing (400-9) in rear endplate and tap
in place with a suitable bearing driver.
12. Prior to reassemble inspect governor for
gouges, nicks or dents. Oil the inside of motor.
Place washer (400-9W) on spindle. Screw gover-
nor (AA-400-XX) into end of spindle and tighten.
NOTE: (Left Hand Thread).
13. Secure backhead (400-G-4-GL{S}) in vise verti-
cally with output of tool toward upward direc-
tion. Clamp onto the ats toward the rear of the
backhead. Place motor housing (400-G-1{S}) onto
backhead.
14. Place o-ring (400-51), exhaust screen (402-
134) and exhaust deector (400-G-17-S) onto
motor housing.
15. Slide front motor assembly into motor hous-
ing. Install motor retainer (400-S-38-S). Tighten
assemblies together.
16. Check the operating speed with a reliable
tachometer. The speed must be at or below the
stamped speed on the tool.
17. Install all required safety devices before
returning tool to service.

HENRY TOOLS, INC. Ph: [phone] or [phone]
General Operators Instructions and Service Manual
www.HenryTools.com | Page 146 Revised 04/24/10
For additional product information visit
our website.
MODELS
47 GL
47 GLS
47 GLSK
PNEUMATIC DIE GRINDER SAFETY
The 47GL die grinders are intended for use with mounted wheels, points and carbide burrs.
They are not guarded for type 1 wheels. If you have a type 1 wheel application, please pur-
chase a wheel guard or another tool if that tool won’t accommodate a guard.
GRINDER SAFETY
ALWAYS COMPLY WITH:
1. General Industry Safety & Health Regulations, Part 1910, OSHA 2206, available from: Sup’t of
Documents; Government Printing Oce; Washington DC 20402
2. Safety Code for Portable Air Tools, ANSI B186.1 available from: American National Standards
Institute, Inc.; 1430 Broadway; New York, NY 10018
3. State and Local regulations.
4. Portions of the above codes and regulations are listed below for quick reference.
THESE EXCERPTS ARE NOT INTENDED TO BE ALL INCLUSIVE - STUDY AND COMPLY WITH ALL REGULA-
TIONS!
1. Always turn o the air supply and disconnect the air supply hose before installing, removing or
adjusting any accessory on this tool, or before performing any maintenance on this tool.
2. After mounting a wheel or other abrasive acces-
sory, the Grinder shall be run in a protected enclosure,
at gradually increasing speed, for at least 60 seconds.
When starting work with a cold wheel, apply it gradu-
ally to the workpiece until it becomes warm. Do not
continue to use a grinder if:
• The speed rating of the accessory is less than the
speed of the grinder
• If tool vibrates repair immediately.
• You sense changes in tool speed or an unusual
increase in noise that would indicate tool is run-
ning at excessive speed.
• You notice excessive end play in spindle
• You hear any unusual sound from grinder
RETURN THE TOOL TO THE TOOL CRIB FOR SERVICE
IMMEDIATELY.
3. Make certain no one is in front of or in line with
the wheel or other abrasive accessory. Be aware that
it may fail at this time if it is defective, improperly
mounted or the wrong size and speed. Stop imme-
diately if considerable vibration or other defects are
detected. Shut o the air supply and determine the
cause.
4. OPERATOR PROTECTIVE EQUIPMENT - Wear
goggles or face shield at all times tool is in operation.
Other protective clothing shall be worn, if necessary.
SEE REGULATIONS.
5. Keep hands, loose clothing and long hair away
from rotating end of tool.
6. Anticipate and be alert for sudden changes in
motion during start up and operation of any power
tool.
7. Keep body stance balanced and rm. Do not
overreach when operating this tool. High reaction
torques can occur at or below the recommended air
pressure.
8. Tool accessories may continue to rotate briey
after throttle is released.
9. Air powered tools can vibrate in use. Vibration,
repetitive motions or uncomfortable positions may
be harmful to your hands and arms. Stop using any
tool if discomfort, tingling feeling or pain occurs. Seek
medical advice before resuming use.
10. This tool is not designed for working in explosive
atmospheres. Do not use this tool on materials whose
dust or fumes can cause a potentially explosive
environment.
11. This tool is not insulated against electric shock.
12. Product Safety information - When Placing the
Tool in Service
• NEVER MODIFY ANY PART OF THIS TOOL!!!!
Always install, operate, inspect and maintain
this product in accordance with all applicable
standards and regulations (local, state, country,
federal, etc.).
• Always use clean, dry air at 90 psig (6.2 bar/620
kPa) maximum air pressure at the inlet. Higher
pressure may result in hazardous situations includ-
ing excessive speed, rupture, or incorrect output
torque •
• DO NOT MODIFY THE TOOL, SAFETY DEVICES,
OR ACCESSORIES.