Gesswein PH3 15X User manual

Instruction Manual
for
15,000RPM Rotary Handpiece
Model: PH3 15X
#5103320
2
Introduction
The Gesswein Power Hand 3 M-15X Rotary Handpiece is engineered and
manufactured to a high degree of precision and will give you many years of
trouble-free service. Backed by a limited warranty that covers wear parts for
90 days and overall balance of parts for six months.
This DC electrically driven rotary motor is designed to be used with the
Power Hand 3 Controller (#510-3300). For use with Gesswein Power Hand 2X
controllers, the PH3 adaptor (#510-3304) is necessary to connect the
5 prong motor plug to the 3 prong controller receptacle. Controllers convert
the Alternating Current (AC) power supply to a variable Direct Current (DC)
by means of an I.C. “transistorized” automatically controlled circuit.
The Gesswein Power Hand 3 rotary motor series consists of six motors
and eight head assemblies with maximum operating speeds ranging from
8,000 to 55,000rpm. The maximum RPM speed is indicated on each motor
case housing.
To connect Power Hand 3 handpieces to Power
Hand 2X controllers, use the PH3 Adaptor 5 to 3
prong reducer plug. #510-3304.

3
1. Accessories
Included Accessories
A. One 3⁄32" (2.35mm) Collet (reorder #501-0100)
B. One 1⁄8" (3.2mm) Collet (reorder #501-0105)
C. Two Carbon Brushes (reorder #510-0161)
D. One Collet Wrench (reorder #510-0180)
Optional Accessories
A. Handpiece Extension Cord (#510-3380): adds 9 feet, or almost 3 meters,
to the rotary handpiece cord
B. Handpiece Cradle Rest (#510-1130): provides a safe holding place
for the rotary handpiece when not in use
C. PH3 Variable-Speed Foot Rheostat (#510-3306)
D. 3mm Collet (#501-0106)
E. Reducing Collets: 1⁄8" to 3⁄32" (#816-1501), 1⁄8" to 1⁄16" (#816-1502),
3⁄32" to 1⁄16" (#816-1503), 3mm to 3⁄32" (#816-1504), 3mm to 1⁄16" (#816-1505)
2. Parts Nomenclature (Fig. 1)
1. Test Rod
2. Collet
3. Head Cover
4. Collet Release Ring
5. Motor Connecting Ring
6. Motor Housing
7. Motor Cover
8. Power Cord with 5-prong plug
9. On/Off Switch
Fig. 1
134
2
67
8
5
9
4
3. General Description of Use
Tool Changing
The Gesswein Power Hand 3 Rotary
Handpiece uses a quick-tool-release
mechanism that allows for rapid tool changes.
To operate, turn the Collet Release Ring
toward the arrow pointing to the “R” or release
position (see Fig. 2). When in full “R” position,
the Collet Release Ring will make a click
sound; the collet is then fully open and ready
to accept a tool.
To secure the tool, rotate the Collet Release
Ring toward the “S” or secure position. Again,
a click sound will be heard, indicating the
collet is fully closed and the tool is secure.
When changing tools, be sure that the
handpiece motor is not running. If you attempt
a tool change under this condition, the motor
will be stalled and damage will occur.
Collet Removal
The Gesswein Power Hand 3 Rotary
Handpiece can be fitted with three different
size collets. Standard sizes are 3⁄32" (2.35mm)
and 1⁄8" (3.2mm). Bright Cutting Package
supplied with a 3.0mm collet.
To change collets, rotate the Collet Release
Ring to the full “R” position and remove
the tool in the collet. Hold the collet
between thumb and forefinger and turn in a
counterclockwise direction until the collet is
removed. Insert the new collet and reverse
the procedure. It is best to tighten a replaced
collet by hand with the collet wrench
(#510-0180), securing until just tight.
Collet
Release
Ring
S R
RS
Fig. 2
SR
Collet
Wrench
Tighten
R
Loosen
Fig. 3

5
If the collet cannot be loosened by hand using
the Collet Wrench, additional torque may be
required. To use the Collet Wrench, place
the triangular cutout in the wrench over the
collet (see Fig. 3), and turn counterclockwise
to loosen and clockwise to tighten the collet.
If more torque is required, hold the handpiece
with the Collet Wrench secure on the collet,
and tap the wrench with a solid tool (see
Fig. 3a) in a counterclockwise direction. This
procedure will loosen the collet, which can
then be removed by hand.
If the handpiece collet is so tight that the
above procedure will not loosen it, then
remove the Head Assembly from the Motor
Assembly. This can be done by grasping the
Motor Connecting Ring (see Fig. 1) and pulling
upward. Insert the Chuck Joint Wrench (see
Fig. 3b) into the Nylon Coupler (#510-0151),
hold the Head Assembly and Chuck Joint
Wrench securely in one hand, and with the
Collet Wrench in place on the collet, loosen
in a counterclockwise direction (for parts
drawing, refer to page 11.)
After a collet is replaced, be sure that the
Collet Release Ring is rotated to its full “S”
position and that the collet rotates freely
when turned by hand. If the collet does not
rotate freely, it is not fully seated in the Head
Assembly, and you must repeat the removal-
replacement procedure.
Bla
nk Bar
R
Collet
Wrench
Collet
Release
Ring
Fig. 3a
SR
Collet
Wrench
Tighten
R
Loosen
Fig. 3a
Fig. 3b
6
4. Operating Procedure with Power Hand 3 Controller
With your rotary handpiece fitted with a selected tool, connect the Gesswein
Power Hand 3 Controller to an electrical supply and the handpiece to the
A motor or B motor output socket.
Put the Controller Main Switch to the “ON” position, which lights up the LED
lights of controller. Then select the A motor or B motor button depending
on which socket the handpiece is plugged in to. Check to make sure the
desired rotational direction is selected on the Fwd./Rev. button. Then press
the START/STOP button to supply power to your handpiece. RPM speed is
adjusted by the round dial in the center. It is always best to start at minimum
RPM and then increase to the desired RPM speed.
A Load Indicator light is located on the front panel of the PH3 Controller with
8 steps of LED lights from green to yellow to red. The display lights up as
force is being applied to the handpiece. For best results and long life, stay
within the green.

7
5. Precautions
A. Before operating your handpiece, be sure that the Collet Release Ring is
in the “S” or secure position. Failure to do so (referred to as “locked rotor
condition”) will cause the motor to stall and could possibly cause motor
damage.
B. Do not attempt to change tools or rotate the Collet Release Ring while the
handpiece is running. This action will stop the motor abruptly, cause parts
damage, and could also possibly cause motor damage.
C. During use, avoid stalling the motor by pushing too hard on the work tool
or by exceeding the torque capacity of the handpiece motor.
D. The Gesswein Power Hand 3 Rotary Handpiece is designed not to
overheat with normal use. It can be used continuously and will provide
efficient, longlife performance if you apply just enough machining and
polishing pressure to maintain full motor speed.
E. The 3⁄32" (2.35mm), 1⁄8" (3.2mm) and 3.0mm collets are manufactured to
accept 3⁄32", 1⁄8" and 3.0mm ± 0.0008" shank tools respectively. Use only
tools that correspond to the collet size being used.
F. Do not use your handpiece in water or oil, and never allow any oil, water
or other fluids, dirt, or wood dust to enter the inner casing. Failure to
keep foreign matter out of the inner casing will cause damage to the ball
bearing assemblies.
G. Do not subject the power cord on the handpiece to sharp bending or
rough treatment. Such treatment could break the cord wires or damage
the male connecting pins and female cord connectors.
H. Be careful not to point the handpiece at any part of the body while it is
running, particularly during startups.
I. Be careful when using Wire Burnishing Tools. DO NOT USE THESE TOOLS
AT SPEEDS FASTER THAN 14,000 -15,000RPM. Each tool is made of
individual piano wire. Operating a Wire Burnishing Tool at higher than
recommended speed could cause the wire to come free from the hub.
8
6. Replacement of carbon brushes
Gesswein Power Hand 3 motors use a spring tension-type carbon brush
assembly. The approximate life of these brushes is 800-1,000 hours. Use the
set of two replacement carbon brushes supplied with your handpiece when
it becomes necessary to replace worn brushes. (Brushes should be changed
when handpiece is not running at maximum speed, or if it sounds as though
it’s running out of gas.) Please note that in the event you must change the
brushes, it is important that both be replaced at the same time. Replacement
of only one carbon brush will cause motor damage.
Instructions for replacing carbon brushes
1. Disconnect the handpiece from the controller.
2. Remove the screw on the back of the motor cover.
3. Detach the motor cord from the motor by grasping the motor cord and
pulling backwards. Do not hold the motor cap when pulling backwards
to avoid damaging the On/Off switch (Fig. 4).
Fig. 4

9
4. Remove the 2 carbon brush screws and take out the carbon brushes. Be
careful not to lose screws.
5. Install the new Carbon Brushes and secure with screws (Fig. 5).
6. Gently push down the On/Off motor switch to free the motor cord from
the motor cap. Be careful not to damage the On/Off motor switch. Then
plug the motor cord back into the motor (Fig. 6)
7. Dust Removal - From time to time, it will be necessary to clean excessive
dust that accumulates in the motor cover. To remove this dust, remove
the motor cap (see instructions for replacing carbon brushes to remove
motor cap). If compressed air is available, use it inside the cover and the
motor armature air cooling vent. If air is not available, remove excessive
dust with a dry brush. If necessary, use a cloth moistened with detergent
to clean the cover, and blow into the air cooling vents to clean around the
armature. DO NOT USE any volatile liquid as a cleaner (i.e. paint thinner
or alcohol).
Periodically cleaning the inner threads on handpiece collets will ensure
their easy collet removal when changing sizes. Twist a clean rolled-up
piece of tissue paper in and out of the threaded area.
Fig. 5
Fig. 6
8. Align the On/Off motor switch with the square hole of the motor cap, and
gently insert motor cap (Fig. 7 & 8). Then insert the motor cap screw.
9. While the power is off, plug handpiece into controller. Please speed up
gradually from minimum RPM and make sure nothing is abnormal with
behavior.
10. Lubrication - Lubrication of your Gesswein Power Hand 3 Rotary
Handpiece IS NOT NECESSARY, and you should NOT let oil or other
fluids enter the Head Assembly (see Precautions).
10
Fig. 7
Fig. 8

PH3 15X Handpiece Parts List
When ordering spare parts, always specify part#
(or item# if applicable) and description.
12
Part# Item# Description
JA-236 8960050 Top Cover
KS-184 8960051 Teflon Spacer
ON10-401 8960052 O-Type Rubber Ring
AR16-114A 8960053 Dust Ring
KW-180 8960054 Wave Washer
KC-180 8960055 C-Type Clip Ring
KC-064 8960056 C-Type Clip Ring
MT54-109A 8960057 Dust Seal “B”
GA37-108 8960058 Dust Seal “A”
KW-081 8960059 Wave Washer
KS-105 8960060 Stainless Spacer
1260ZZ 5013074 Ball Bearing
JA15-110 8960061 Bearing Spacer
1480ZZ 5013072 Ball Bearing
MT54-112A 8960062 Coil Spring Cover
KB-590 8960063 Coil Spring
KP-036B 5010100 501-0100
Collet Chuck, (2.35mm)
KP-032B 5010106 Collet Chuck, (3.0mm)
KP-033B 5010105 Collet Chuck, (3.175mm)
JA15-101 8960064 Chuck Case
KB-570 8960065 Coil Spring
JA15-104A 8960066 Joint Shaft
KB-044 8960067 Coil Spring
GA78-106A 5100151 Joint
KC-073 8960068 C-Type Clip Ring
JA15-111 8960069 Dust Seal “C”
KB-133 8960070 Coil Spring
MT01-206A 8960071 Roller Ring
MT02-209 8960072 Roller
JA15-250 8960073 Set Ring
KS-201 8960074 Teflon Spacer
GA8-213 8960075 Thrust Spring
GA8-220 8960076 Retainer
ISTW-15 8960077 C-Type Clip Ring
JA15-202 8960078 Metal Washer
KB-230 8960079 Coil Spring
JA15-300 8960080 Lock Ring
JA15-204A 8960081 Coupler
SB3 8960082 Stainless Steel Ball
KP-615A 5100180 Chuck Wrench
KP-619 5100179 Chuck Joint Wrench
11

13 14
PH3 15X Motor Parts List
When ordering spare parts, always specify part#
(or item# if applicable) and description.
Part# Item# Description
UM21A-310 896-0326 Motor Case
YSF21-103 896-0002 Countersunk Head Screw
ON10-301 896-0003 O-Type Rubber Ring
KS-118 896-0004 Metal Spacer
KS-119 896-0005 Teflon Spacer
KS-114B 896-0006 Metal Spacer
KW-111 896-0007 Wave Washer
1140ZZ 510-3087 Ball Bearing
KS-085 896-0008 Metal Spacer
KS-119 896-0005 Teflon Spacer
KA20-105-BB 510-2316 Armature Complete
KA20-105 510-2317 Armature
KF-203A 896-0010 Dust Proof Collar
KF-210 896-0011 Dust Proof Collar
1030ZZ 510-3073 Ball Bearing
S-10 896-0012 O-Type Rubber Ring
KS-101 896-0013 Teflon Spacer
HE10A-203 896-0014 Rear Lid
ON10-204 896-0015 O-Type Rubber Ring
UM20-202 896-0321 Brush Side Lid
PKE60-103A 510-0161 Carbon Brush (set of 2)
YSP23-103 896-0017 Pan Head Screw
KE-126 896-0018 (+) Terminal Plate
KE-127 896-0019 (-) Terminal Plate
KE75-500 896-0327 Hand Switch Assembly
KE50-154 510-3382 Motor Cord with Plug
UM21A-780 896-0328 Motor Cap
YSF21-124 896-0325 Pan Head Screw
KA20-105-BB continued
KA20-105-BB

Power Hand 3 component selection:
•PH3 controller
•Six motors (three high torque,
two standard, and one high speed)
•A selection of 8 heads
•Two reciprocating profilers
•One side-to-side profiler
•Belt Sander
Power Hand 3 controllers and handpieces combine to create the most versatile
finishing system in the industry, offering rotary, profiling and belt sanding action.