Foredom PowerGraver - Manual (Page 2)

Contents
Specifications 2
Safety Instructions 2
The Complete PowerGraver ® Kit 3-4
Assembly Instructions 4
Assembly and Adjustment of Handpiece 4-5
Connecting Speed Control and Foot Switch 5
Operation 5
Stroke/Speed Adjustment 5
Installing Accessories 5-6
Changing Collets 6
Adjusting Impact of Hammer 6
Maintenance 6
Routine Cleaning and Lubrication
of Flexible Shaft 6
Replacement of Worn Shaft and Sheath 7
Replacement of Motor Brushes 7
Handpiece Lubrication 7
Other Service and Repair 8
Storage 8
For More Information 8
Limited Warranty 8
Specifications
M.PGX Motor: 125 Volt DC; Ball Bearing
Permanent Magnet Motor, Operable Speed
Range: 500 – 2,800 RPM.
PGX-1 is for use with 115Volt AC.
PGX-2 is for use with 230Volt AC.
C.EMGX Dial Control: Variable speed
manually operated electronic control.
EMGX-1 is for use with 115Volt AC.
EMGX-2 is for use with 230Volt AC.
Page
Safety Instructions
Before using your Foredom ® power tool,
please read all these safety instructions.
They are for your protection and should always
be followed to reduce the risk of
personal injury or damage to the tool.
• Always wear proper eye and face
protection. Safety glasses or face shields
should be worn whenever you operate a
Foredom or any power tool to prevent
serious eye or face injuries.
2
Visit
www.foredom.net
How-To Videos
FOREDOM BASICS
Foredom's National Sales
Manager, walks you through
the "Basics" of using and
maintaining flexible shaft
machines. Downloadable
mini series of .wmv files each
under 5 minutes.
Click to View:
1. Introduction and
Proper Set-up
2. Safety Guidelines
3. Handpieces and
Accessories
4. Maintenance of Shafts
and Sheaths – Grease
and Replace
5. Motor Maintenance–
Remove Dust, Replace
Motor Brushes
Shaft/Sheath: Shaft S-93 is 39 ″ long, and
.150 ″ in diameter. Flexible Neoprene Sheath
S-76N is 36 1 ⁄ 4
″ long.
Optional FCGX Foot Switch: On/Off foot-
operated switching. (115V or 230V AC
Current)
Always make sure your power tool
is unplugged during maintenance!
Replacing Worn Shafts and Sheaths
Shafts and sheaths last longer when they are not
used at sharp angles or loops, since wear occurs at
the points of greatest friction. There is no way to
avoid ultimate wear, and under normal conditions a
flexible shaft machine may require several replace-
ment shafts and sheaths during its lifetime.
To expose the inner shaft follow steps 1, 2, and 3
on the previous page.
Next, remove motor connector
with 1 ″ open end or adjustable
wrench. Motor connector has a
left hand thread and must be
turned clockwise (right)
for removal.
Loosen set screw on the flexible shaft motor
coupling and slide shaft off the motor shaft.
Installation of New Shaft
1. After removing old shaft, loosen set screw on
the new flexible shaft motor coupling and slide
coupling onto motor shaft.
2. Tighten set screw
securely onto the flat of
the motor shaft.
3. Grease shaft prior to
putting on the sheath.
(See lubrication
instructions on page 6.)
4. Slide motor connector back up over the shaft
and tighten to the left (counterclockwise).
5. Slide sheath over flexible shaft with plain fit-
ting directed toward the motor and into the motor
connector. (Each end of the sheath has a metal
fitting. One is plain, the other fits the handpiece.)
6. Adjust the shaft as
shown at top right side
of page and tighten
sheath set screw in
motor connector.
Shaft and Sheath Adjustment:
Place the entire unit on
a flat surface with shaft
and sheath extended
straight. Adjust the
exposed tip of the
flexible shaft at the handpiece
end so that it extends 3/4 ″ (19mm) beyond
the sheath, as shown at bottom of page 6. This
is done by moving the sheath in or out of the
motor connector. When he correct adjustment is
made, tighten the screw in the motor connector.
motor
coupling
motor
shaft
set screw
New Motor Brush
Motor Brush that
needs replacement
Oil Hole
Oil Hole
Set Screw
Wrench Flats
Palm Rest
Tool Holder
Chuck Nut
Impact Adjusting Ring Duplex Spring Cover
Connector Aligning Tab
7
The motor brushes (MP319P) should be
checked for wear periodically. When new, they are
approximately 3/4 ″ long. They should be replaced
when they have worn to 1/4 ″. To remove brushes,
disconnect motor power cord and unscrew the
brush caps. Be sure that the contour of the
brushes match the contour of the armature when
replacing them. Be sure to replace both motor
brushes even if one of them is less worn than the
other.To remove dirt and dust buildup, when motor
brushes are checked or replaced, compressed air
should be blown through the motor.
Handpiece Lubrication
The H.9D Handpiece requires lubrication
approximately every 40 hours of use. Use oiler
provided to apply two drops of oil into the oiling
hole located on the barrel of the handpiece under
the palm rest and into the hole on the rear of the
duplex spring connection. To remove palm rest,
loosen set screw. Do not apply more than two
drops of oil.
Replacement Fuse
The C.EMGX Dial Speed Control may require
CP10543 Replacement Fuse for either 115V AC or
230V AC.
Replacement of Motor Brushes