Rockwood 31819 User manual

PISTOL GRIP NEEDLE SCALER
INSTRUCTIONS
Item #31819

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The ROCKWOOD PISTOL GRIP NEEDLE SCALER make fast work of heavy rust, scale and caked-on
grime removal from most heavy-duty steel and cast iron frames and components. A hard-hitting,
1-11/16” [43mm] stroke with 6” [150mm] Chisel Fingers for maximum effectiveness. Speed is easily
controlled with an infinitely progressive, rotating knob control.
CONTENTS
(1) Pistol Grip Needle Scaler Tool
(1) Chisel Finger Assembly
(1) 3mm Hex Key
(1) 1/4” MNPT, Male
Quick Disconnect Inlet Fitting
SPECIFICATIONS
Blows Per Minute: 4,500 BPM
Stroke: 1-11/16” [43mm]
Air Consumption: 4 CFM [113 L/min] @90 PSI. [6.3bar]
Inlet Thread Size: 1/4” FNPT
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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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.
EYE INJURY HAZARD!
• Rapidly moving 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.
BURSTING HAZARD!
• Do not exceed 90 psi (6.3 bar) of tool inlet pressure. Permanent tool dam-
age and/or explosion could occur and cause personal injury.
INJURY HAZARD!
• This tool has high-speed, highly aggressive chiseling 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 may eject sparks during use which can ignite flammable materials
or injure others nearby. Do not operate near flammable materials and keep
all persons and pets away from the work area.
• Do not force tool while in use as the tool body can suddenly kick back
causing severe hand or wrist injury. Chisel Fingers may disintegrate with
excessive side force causing them to fracture and eject sharp pieces at high
velocity.
• Always make sure the workpiece is securely clamped or anchored to avoid
sudden movements which could result in injury.
• Frequently inspect Chisel Fingers and tool condition. If cracks develop,
discontinue tool use.
VIBRATION INJURY HAZARD!
• This tool will vibrate during use! Repeated exposure to vibration may cause
physical injury.

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SET-UP
• Insert the Shank of the Chisel Fin-
ger Assembly Thread loosely into
the counterbore at the end of the
Needle Scaler Tool nose (FIG 1).
• Thread the Chisel Finger Assem-
bly over the coarsely threaded
nose of the tool body until it seats
fully (FIG 1).
• Using the included 3mm Hex Key,
tighten the three retaining set
screws arraigned around the cir-
cumference of the Chisel Finger
Assembly shell (FIG 2).
• Using a good quality Teflon seal-
ing tape (Not Included), thread
the 1/4” MNPT, Male quick
disconnect inlet fitting into the
air inlet.
CONNECTION
• Be sure that the air supply to the
tool is clean and dry. Moisture in
the supply line will quickly damage
the motor and valves.
• A minimum 3/8” I.D. air line should
be used for optimal performance.
✓
FIG. 1
FIG. 2
3mm
Hex Key
Tighten 3
Set-Screws
Securely
Insert
Shank
✓
✓
Thread On

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OPERATION
• Connect air supply, depress
Trigger to begin Chiseling action.
• Speed is regulated by rotating
the knurled Knob located at the
underside of the Gun Grip. To in-
crease speed: rotate in a Counter-
Clockwise direction (as viewed
form the underside of the Gun
Grip). To decrease speed: rotate
Knob in a Clockwise direction.
• For maximum effectiveness, align Chisel Fingers at a 15° to 30° angle to work surface
(Fig 3). As they approach 90°, they become less effective and may damage the Fingers
and work surfaces.
MAINTENANCE
• Add several drops of air tool oil before each use by dropping 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.
To avoid premature Chisel Finger wear, DO NOT allow Chisel Fingers
to approach a 90° angle to the work surface.
FIG. 3
15° - 30°
Ideal Work Angle

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NOTES

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Tool Doesn’t
Respond to
Trigger
Depression
Insufficient vol-
ume of air (CFM)
to operate tool
Verify sufficient air supply to tool.
(4 CFM @ 90 PSI minimum requirement).
Moisture or oth-
er contamination
in air supply
Check for moisture in air line and tool air inlet.
Tool Perfor-
mance is Slow
or Sluggish
Insufficient vol-
ume of air (CFM)
to operate tool
Verify sufficient air supply to tool.
(4 CFM @ 90 PSI minimum requirement).
Moisture or oth-
er 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 is Exces-
sively Cycles
but Chisel
Fingers Move
Very Little or
Not at All
Chisel Finger
Assembly has
loosened from
Tool Body
Stop use immediately and re-tighten Chisel Finger
Assembly to Tool Body.
TROUBLESHOOTING

© Copyright 2017 Easthill Group, Inc. 6/17 Instruction item #31819Q 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/31819manual
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
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