Eastwood 31921 User manual
3"INLINE CUT OFF TOOL
INSTRUCTIONS
Part #31921
© Copyright 2017 Easthill Group, Inc. 8/17 Instruction item #31921Q Rev 1
If you have any questions about the use of this product, please contact
The Eastwood Technical Assistance Service Department: 800.343.9353 >> email: techelp@eastwood.com
PDF version of this manual is available online >> eastwood.com/31921manual
The Eastwood Company 263 Shoemaker Road, Pottstown, PA 19464, USA
US and Canada: 800.343.9353 Outside US: 610.718.8335
Fax: 610.323.6268 eastwood.com
ADDITIONAL ITEMS
#28105 3" x 3/8" x 1/16" Cut-Off Wheels - 5 Pk.
#31524 1/4" FNPT Type M, Quick Connect Coupler
2Eastwood Technical Assistance: 800.343.9353 >> techelp@eastwood.com To order parts and supplies: 800.343.9353 >> eastwood.com 7
The EASTWOOD 3" INLINE CUT-OFF TOOL features a unique design configuration which provides
additional versatility and comfort compared to ordinary pneumatic Cut-Off tools. A heavy, die-cast
wheel guard is included for maximum safety, as well as a ball bearing motor for smooth operation and
long life. Speed is easily controlled with an infinitely progressive throttled trigger control and a speed
control lever.
.
CONTENTS
(1) 3" Cut-Off Tool
(1) 14mm Flat Arbor Wrench
(1) 5mm Hex Key Arbor Screw Wrench
(1) 4mm Hex Key Guard Wrench
(1) 1/4" MNPT, Male quick-disconnect
Inlet Fitting with Thread Sealant
SPECIFICATIONS
Arbor Size: 3/8" (9.5mm)
Replacement Cut-Off Wheel Size: 3/8" (9.5mm) x 3" with a min. 20,000 RPM rating
Maximum cutting depth: 11 /16" (17.5 mm )
RPM: 17,000 free speed
Air Consumption: 4 cfm (113 L/minute)
Inlet thread size: 1/4" FNPT
PROBLEM CAUSE CORRECTION
Tool Doesn’t
Respond
to Trigger
Depression
Insufficient volume
of air (CFM) to
operate tool
Verify sufficient air supply to tool.
(4 CFM @ 90 PSI minimum requirement).
Moisture or other
contamination in
air supply
Check for moisture in air line and tool air inlet.
Tool
Performance
is Slow or
Sluggish
Insufficient volume
of air (CFM) to
operate tool
Verify sufficient air supply to tool.
(4 CFM @ 90 PSI minimum requirement).
Moisture or other
contamination in
air supply
Check for moisture in air line and tool air inlet.
Air Motor is lacking
lubrication
Stop use immediately and add air tool oil directly to
air inlet.
Tool Vibrates
Excessively
During Use
Out of balance
condition from
damaged Cutting
Wheel
Stop use immediately, check for and replace
cracked or broken Cutting Wheel.
Loose Wheel
Retaining Screw Tighten loose Socket Head Wheel Retaining Screw.
TROUBLESHOOTING
To order parts and supplies: 800.343.9353 >> eastwood.com 36 Eastwood Technical Assistance: 800.343.9353 >> techelp@eastwood.com
DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.
WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION used with the safety alert symbol, indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
NOTICE is used to address practices not related to personal injury.
SAFETY INFORMATION
The following explanations are displayed in this manual, on the labeling, and on all other information
provided with this product:
READ INSTRUCTIONS
• Thoroughly read and understand these product instructions before using
this tool. Failure to follow all warnings can result in tool damage or
serious physical injury.
• Keep these product instructions for future reference.
RESPIRATORY HAZARD!
• Dust and fine particles are generated while cutting which can contain
hazardous or toxic substances. Breathing this dust can cause many serious
respiratory health conditions. Always use NIOSH approved respiratory
protection while using this Saw.
EYE INJURY HAZARD!
• Rapidly rotating surfaces can eject metal particles, dirt and oils at high
velocity. Always wear ANSI approved eye protection when operating this tool.
HEARING DAMAGE HAZARD!
• The Eastwood 3” Inline Cut-Off Tool emits high sound levels while operating.
Use ANSI approved ear protection when operating this tool.
ADJUST GUARD
• Using the included 3mm Hex Key, loosen the Socket
Head Clamping Screw slightly, rotate the Guard to
the desired position then re-tighten screw.
OPERATION
• Adjust the Speed Control Lever located on the left
side of the handgrip section of the main tool body
(Fig 3).
• Connect air supply, hold tool
securely, flip Safety Lever
under Paddle and depress
Paddle to begin rotating action
(Fig 3).
MAINTENANCE
• Add several drops of air tool oil
before each use directly into
the air inlet.
• If tool is to be unused for an
extended period, add 10 drops of air tool oil directly to the air inlet, rotate the tool motor by
hand several times to distribute the oil throughout the motor and gearbox then store the tool,
handle up.
• With the air supply disconnected, periodically check that the Socket Head Wheel Retaining
Screw is tight.
FIG. 2
INJURY HAZARD!
• DO NOT operate Cut Off Tool without Guard in place!
INJURY HAZARD!
• Disconnect air supply from the tool to prevent accidental starting and potential injury while
making adjustments to the Guard (Fig 2).
FIG. 3
✓
Rotate To Adjust Speed
Press Paddle
Rotate
Safety Lever
4Eastwood Technical Assistance: 800.343.9353 >> techelp@eastwood.com To order parts and supplies: 800.343.9353 >> eastwood.com 5
BURST HAZARD!
• Do not exceed 90 psi (6.2 bar) of tool inlet pressure. Permanent tool damage
and/or bursting could occur and cause personal injury.
INJURY HAZARD!
• This tool has high-speed, highly abrasive cutting surfaces which can quickly
cause severe injury. Keep fingers and hands away from moving parts when
operating. Wear thick, well-fitting work gloves and keep loose clothing,
sleeves, cords, jewelry and hair away from moving parts.
• This tool will eject a trail of sparks at high speed which can ignite flammable
materials or injure others nearby. Do not operate in the vicinity of flammable
materials and keep all persons and pets away from the work area.
• Do not force tool or exert side forces on Cut-Off Wheel while cutting as
the tool body can suddenly kick back or twist causing severe hand or wrist
injury. Cut-Off Wheels can shatter with excessive side force causing them to
disintegrate and eject sharp pieces at high velocity.
• Always make sure the workpiece being cut is securely clamped or anchored
to avoid sudden movements which could result in injury.
• Frequently inspect Cut-Off Wheel and tool condition. If cracks or chips de-
velop, discontinue tool use immediately and replace damaged Wheel. ONLY
USE replacement Wheels rated at 20,000 RPM or greater. Severe injury can
result in the event of Cut-Off Wheel failure.
• Disconnect air supply from the tool to prevent accidental starting and poten-
tial injury while installing or removing Cut-off Wheels.
VIBRATION INJURY HAZARD!
• This tool will vibrate during use! Repeated exposure to vibration may cause
physical injury.
SET-UP & CONNECTION
• Thread the included 1/4” Male NPT quick disconnect fitting into the 1/4” NPT inlet threads
of the Cut-off tool.
• Attach Air Supply to Inlet Fitting.
INSTALL CUT-OFF WHEEL (NOT INCLUDED)
• The Cut-Off Wheels are removed and installed
by gripping the flats on the output shaft with the
included 14mm Flat Arbor Wrench while placing
the Included 5mm Hex Key Wrench into the
Socket Head Wheel Retaining Screw threaded
into the arbor shaft.
• Turn the screw in a counter-clockwise direction
when viewed from the end. Remove Retaining
Washer (note outward orientation of beveled
edge) then remove cutting wheel (Fig 1).
• Place replacement wheel over the stepped 3/8"
[9.5mm] diameter portion of the shaft, replace
Retaining Washer in the proper bevel-out position.
• Re-install the Socket Head Wheel Retaining Screw, then use the wrenches to tighten (Fig 1).
FIG. 1
Be sure that the air supply to the tool is clean and dry. Moisture in the supply line
will quickly damage the air motor and valves. A minimum 3/8” I.D. air line should be
used for optimal performance.
INJURY HAZARD!
• Disconnect air supply from the tool to prevent accidental starting and potential injury while
installing or removing Cut-off Wheels.
INJURY HAZARD!
• To avoid injury, only use replacement Wheels rated for High-RPM, (20,000 or greater) use.
Be sure the Socket Head Wheel Retaining Screw is securely
tightened on the output shaft before operating tool.
4Eastwood Technical Assistance: 800.343.9353 >> techelp@eastwood.com To order parts and supplies: 800.343.9353 >> eastwood.com 5
BURST HAZARD!
• Do not exceed 90 psi (6.2 bar) of tool inlet pressure. Permanent tool damage
and/or bursting could occur and cause personal injury.
INJURY HAZARD!
• This tool has high-speed, highly abrasive cutting surfaces which can quickly
cause severe injury. Keep fingers and hands away from moving parts when
operating. Wear thick, well-fitting work gloves and keep loose clothing,
sleeves, cords, jewelry and hair away from moving parts.
• This tool will eject a trail of sparks at high speed which can ignite flammable
materials or injure others nearby. Do not operate in the vicinity of flammable
materials and keep all persons and pets away from the work area.
• Do not force tool or exert side forces on Cut-Off Wheel while cutting as
the tool body can suddenly kick back or twist causing severe hand or wrist
injury. Cut-Off Wheels can shatter with excessive side force causing them to
disintegrate and eject sharp pieces at high velocity.
• Always make sure the workpiece being cut is securely clamped or anchored
to avoid sudden movements which could result in injury.
• Frequently inspect Cut-Off Wheel and tool condition. If cracks or chips de-
velop, discontinue tool use immediately and replace damaged Wheel. ONLY
USE replacement Wheels rated at 20,000 RPM or greater. Severe injury can
result in the event of Cut-Off Wheel failure.
• Disconnect air supply from the tool to prevent accidental starting and poten-
tial injury while installing or removing Cut-off Wheels.
VIBRATION INJURY HAZARD!
• This tool will vibrate during use! Repeated exposure to vibration may cause
physical injury.
SET-UP & CONNECTION
• Thread the included 1/4” Male NPT quick disconnect fitting into the 1/4” NPT inlet threads
of the Cut-off tool.
• Attach Air Supply to Inlet Fitting.
INSTALL CUT-OFF WHEEL (NOT INCLUDED)
• The Cut-Off Wheels are removed and installed
by gripping the flats on the output shaft with the
included 14mm Flat Arbor Wrench while placing
the Included 5mm Hex Key Wrench into the
Socket Head Wheel Retaining Screw threaded
into the arbor shaft.
• Turn the screw in a counter-clockwise direction
when viewed from the end. Remove Retaining
Washer (note outward orientation of beveled
edge) then remove cutting wheel (Fig 1).
• Place replacement wheel over the stepped 3/8"
[9.5mm] diameter portion of the shaft, replace
Retaining Washer in the proper bevel-out position.
• Re-install the Socket Head Wheel Retaining Screw, then use the wrenches to tighten (Fig 1).
FIG. 1
Be sure that the air supply to the tool is clean and dry. Moisture in the supply line
will quickly damage the air motor and valves. A minimum 3/8” I.D. air line should be
used for optimal performance.
INJURY HAZARD!
• Disconnect air supply from the tool to prevent accidental starting and potential injury while
installing or removing Cut-off Wheels.
INJURY HAZARD!
• To avoid injury, only use replacement Wheels rated for High-RPM, (20,000 or greater) use.
Be sure the Socket Head Wheel Retaining Screw is securely
tightened on the output shaft before operating tool.
To order parts and supplies: 800.343.9353 >> eastwood.com 36 Eastwood Technical Assistance: 800.343.9353 >> techelp@eastwood.com
DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.
WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION used with the safety alert symbol, indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
NOTICE is used to address practices not related to personal injury.
SAFETY INFORMATION
The following explanations are displayed in this manual, on the labeling, and on all other information
provided with this product:
READ INSTRUCTIONS
• Thoroughly read and understand these product instructions before using
this tool. Failure to follow all warnings can result in tool damage or
serious physical injury.
• Keep these product instructions for future reference.
RESPIRATORY HAZARD!
• Dust and fine particles are generated while cutting which can contain
hazardous or toxic substances. Breathing this dust can cause many serious
respiratory health conditions. Always use NIOSH approved respiratory
protection while using this Saw.
EYE INJURY HAZARD!
• Rapidly rotating surfaces can eject metal particles, dirt and oils at high
velocity. Always wear ANSI approved eye protection when operating this tool.
HEARING DAMAGE HAZARD!
• The Eastwood 3” Inline Cut-Off Tool emits high sound levels while operating.
Use ANSI approved ear protection when operating this tool.
ADJUST GUARD
• Using the included 3mm Hex Key, loosen the Socket
Head Clamping Screw slightly, rotate the Guard to
the desired position then re-tighten screw.
OPERATION
• Adjust the Speed Control Lever located on the left
side of the handgrip section of the main tool body
(Fig 3).
• Connect air supply, hold tool
securely, flip Safety Lever
under Paddle and depress
Paddle to begin rotating action
(Fig 3).
MAINTENANCE
• Add several drops of air tool oil
before each use directly into
the air inlet.
• If tool is to be unused for an
extended period, add 10 drops of air tool oil directly to the air inlet, rotate the tool motor by
hand several times to distribute the oil throughout the motor and gearbox then store the tool,
handle up.
• With the air supply disconnected, periodically check that the Socket Head Wheel Retaining
Screw is tight.
FIG. 2
INJURY HAZARD!
• DO NOT operate Cut Off Tool without Guard in place!
INJURY HAZARD!
• Disconnect air supply from the tool to prevent accidental starting and potential injury while
making adjustments to the Guard (Fig 2).
FIG. 3
✓
Rotate To Adjust Speed
Press Paddle
Rotate
Safety Lever
2Eastwood Technical Assistance: 800.343.9353 >> techelp@eastwood.com To order parts and supplies: 800.343.9353 >> eastwood.com 7
The EASTWOOD 3" INLINE CUT-OFF TOOL features a unique design configuration which provides
additional versatility and comfort compared to ordinary pneumatic Cut-Off tools. A heavy, die-cast
wheel guard is included for maximum safety, as well as a ball bearing motor for smooth operation and
long life. Speed is easily controlled with an infinitely progressive throttled trigger control and a speed
control lever.
.
CONTENTS
(1) 3" Cut-Off Tool
(1) 14mm Flat Arbor Wrench
(1) 5mm Hex Key Arbor Screw Wrench
(1) 3mm Hex Key Guard Wrench
(1) 1/4" MNPT, Male quick-disconnect
Inlet Fitting with Thread Sealant
SPECIFICATIONS
Arbor Size: 3/8" (9.5mm)
Replacement Cut-Off Wheel Size: 3/8" (9.5mm) x 3" with a min. 20,000 RPM rating
Maximum cutting depth: 11/ 16" ( 17. 5mm )
RPM: 17,000 free speed
Air Consumption: 4 cfm (113 L/minute)
Inlet thread size: 1/4" FNPT
PROBLEM CAUSE CORRECTION
Tool Doesn’t
Respond
to Trigger
Depression
Insufficient volume
of air (CFM) to
operate tool
Verify sufficient air supply to tool.
(4 CFM @ 90 PSI minimum requirement).
Moisture or other
contamination in
air supply
Check for moisture in air line and tool air inlet.
Tool
Performance
is Slow or
Sluggish
Insufficient volume
of air (CFM) to
operate tool
Verify sufficient air supply to tool.
(4 CFM @ 90 PSI minimum requirement).
Moisture or other
contamination in
air supply
Check for moisture in air line and tool air inlet.
Air Motor is lacking
lubrication
Stop use immediately and add air tool oil directly to
air inlet.
Tool Vibrates
Excessively
During Use
Out of balance
condition from
damaged Cutting
Wheel
Stop use immediately, check for and replace
cracked or broken Cutting Wheel.
Loose Wheel
Retaining Screw Tighten loose Socket Head Wheel Retaining Screw.
TROUBLESHOOTING
3"INLINE CUT OFF TOOL
INSTRUCTIONS
Part #31921
© Copyright 2017 Easthill Group, Inc. 8/17 Instruction item #31921Q Rev 1
If you have any questions about the use of this product, please contact
The Eastwood Technical Assistance Service Department: 800.343.9353 >> email: techelp@eastwood.com
PDF version of this manual is available online >> eastwood.com/31921manual
The Eastwood Company 263 Shoemaker Road, Pottstown, PA 19464, USA
US and Canada: 800.343.9353 Outside US: 610.718.8335
Fax: 610.323.6268 eastwood.com
ADDITIONAL ITEMS
#28105 3" x 3/8" x 1/16" Cut-Off Wheels - 5 Pk.
#31524 1/4" FNPT Type M, Quick Connect Coupler
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