Rockwood 31874 User manual

6" AIR ORBITAL
PALM SANDER
INSTRUCTIONS
Item #31874

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The ROCKWOOD 6” AIR ORBITAL PALM SANDER is a powerful, high-speed sander designed for
high-efficiency. It features a sealed ball bearing drive assembly for smooth, low vibration operation
and long life. The precision diecast housing provides a solid foundation and offers ergonomic,
one handed operation with speed controlled by an infinitely variable hand paddle and thumb
lever speed limiting control.
CONTENTS
(1) Orbital Sanding Tool
(1) 22mm Flat Wrench
(1) 1/4” MNPT, Male
Quick-Disconnect Inlet Fitting
SPECIFICATIONS
Sanding Disc Size & Type: 6” [152mm] PSA Type
RPM: 10,500 free speed
Air Consumption: 7 CFM [198 L/min] @ 90 PSI [6.2 bar]
Inlet thread size: 1/4” FNPT
Replacement Backing Pad: 6” PSA with 5/16”-24 threaded post
REQUIRED FOR USE
• The inlet air supply must have a moisture separator capable of removing all moisture and
impurities from the air supply. Moisture in the air supply will cause poor tool performance
and damage.
• A suitable regulator must be used to limit incoming air pressure to 90 PSI maximum.
Excessive air pressure can cause permanent damage to the unit and possible serious
personal injury from bursting.
• For best results, a compressor capable of providing a minimum of 7 CFM @ 90 PSI is required
while 12.5 CFM is recommended for best performance. Less available CFM will negatively
affect the performance of the Sander and may overwork the compressor.

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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 particulate matter is generated during the sanding process
which can contain toxic substances such as lead, silica, solvents and oth-
ers. Breathing this dust and fine particulate matter can cause many serious
respiratory health conditions. Always use NIOSH approved respiratory
protection while using this Sander.
EYE INJURY HAZARD!
• Rapidly rotating surfaces can eject metal particles, dirt and debris at
high velocity. Always wear ANSI approved eye protection when
operating this tool.
HEARING DAMAGE HAZARD!
• This Rockwood Pneumatic Tool emits high sound levels while operating.
Use ANSI approved ear protection when operating.
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:

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BURSTING 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, abrasive surfaces which can quickly cause 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 can eject sparks at which can ignite flammable materials. Do not
operate near flammable materials and keep all persons and pets away from
the work area.
• Always make sure the workpiece is securely clamped or anchored to avoid
sudden movements which could result in injury.
• Always disconnect tool from air supply when changing Backing Pad or
Sanding Disc to prevent accidental tool starting and potential severe injury.
• Frequently inspect Backing Pad and tool condition. If cracks develop,
discontinue tool use immediately and replace damaged pad. ONLY USE
replacement Backing Pads rated for 10,500 RPM or greater otherwise
severe injury can result in the event of Pad failure.
VIBRATION INJURY HAZARD!
• This tool will vibrate during use! Repeated exposure to vibration may cause
physical injury.
SET UP & CONNECTION
• Wrap white thread sealing tape (not included) around the threads of a 1/4” Male NPT quick
disconnect fitting then thread it into the 1/4” NPT inlet threads of the Sander Body.
• Attach Air Supply to Inlet Fitting.
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.

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OPERATION
• To apply a PSA (pressure sensitive adhesive) Polishing and Sanding Disc, remove the protective
backing film, be certain the Disc is centered over the Backing Pad and press it in place with no
wrinkles or air bubbles.
• The PSA sanding Discs are
removed by gripping the edge and
pulling away from the
backing pad.
• Reconnect air supply; depress
the throttle to begin polish-
ing or sanding action. Speed is
regulated by pressure applied to
the Paddle while the Thumb Lever
mounted at the air inlet is used to
limit maximum speed. Rotating
the Lever inward raises the speed
limit while rotating it outward
lowers it (Fig 1).
• The air exhaust can be adjusted
a full 360° by rotating the Muffler
as desired (Fig 2).
INJURY HAZARD!
Disconnect air supply from the tool to prevent accidental starting and
potential injury while installing or removing Sanding Discs.
Sanding Discs must be centered over the backing pad or a dangerous out of
balance condition can occur.
FIG. 1
FIG. 2
Fast
Slow
Rotate 360°

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BACKING PAD REPLACEMENT
• To replace the 6” PSA (pressure
sensitive adhesive) Backing Pad,
pull up on the Flexible Rubber
Dust Shield, Place the 22mm Flat
Wrench on the Hex of the Arbor
Shaft (FIG 3) while gripping the
Backing Pad in your fingers and
loosen in a counter-clockwise
direction.
• Place replacement Backing Pad
threaded arbor into the 5/16”-24
female threaded output shaft then
use the included flat wrench to
hold the shaft while the pad is
tightened.
MAINTENANCE
• Before each use, add a few drops of a quality air tool oil (not included).
• If tool is to be unused for an extended period, add 10 drops of air tool oil directly to the air inlet
then store the tool, inlet up.
• With the air supply disconnected, periodically check that the backing pad is tight.
INJURY HAZARD!
Disconnect air supply from the tool to prevent accidental starting and
potential injury while installing or removing Sanding Discs.
Be sure the Backing Pad is securely tightened on the output shaft before
operating tool.
FIG. 3
Flip Up
✓
✓
Flip Up
22mm Flat Wrench (included)
✓

To order parts and supplies: 800.343.9353 >> eastwood.com 7
Tool Doesn’t
Respond to
Paddle
Depression
Insufficient CFM
at tool inlet (7
CFM minimum,
12.5 for best
results)
Verify sufficient air supply to tool.
Tool contaminat-
ed by moisture Check for moisture in air line and tool air inlet.
Tool Perfor-
mance is Slow
or Sluggish
Insufficient CFM
at tool inlet (7
CFM minimum,
12.5 CFM for
best results)
Verify sufficient air supply to tool.
Tool contaminat-
ed by moisture Check for moisture in air line and tool air inlet.
Tool Vibrates
Excessively
During Use
Cracked, broken
or loose backing
pad
Stop use immediately and check for cracked or
broken backing pad.
Check for loose backing pad.
Tool Emits
Excessive or
Unusual Noise
During Use
Lack of lubrica-
tion in air motor Stop use immediately and add a quality air tool oil.
TROUBLESHOOTING

© Copyright 2017 Easthill Group, Inc. 6/17 Instruction item #31874Q 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: [e-mail]
PDF version of this manual is available online >> eastwood.com/31874manual
The Eastwood Company 263 Shoemaker Road, Pottstown, PA 19464, USA
US and Canada: 800.343.9353 Outside US: 610.718.8335
Fax: [phone] eastwood.com
ADDITIONAL ITEMS
#16140 Replacement Eastwood 6 Inch PSA Backing Pad
#16141 Eastwood 6 Inch Hook and Loop Backing Pad
#70491 Eastwood Industrial Air Hose, 3/8” x 25’
#70492 Eastwood Industrial Air Hose, 3/8” x 50’