MT1787
2
Rev. 06/02/04
MT1787 Orbital Sander/Mud Buster
MT1787 Orbital Sander/Mud Buster
THIS INSTRUCTION MANUAL CONTAINS
IMPORTANT SAFETY INFORMATION.
READ THIS INSTRUCTION MANUAL CAREFULLY
AND UNDERSTAND ALL INFORMATION
BEFORE OPERATING THIS TOOL.
• Always operate, inspect and maintain this tool
in accordance with American National Standards
Institute Safety Code of Portable Air Tools (ANSI
B186.1) and any other applicable safety codes and
regulations.
• For safety, top performance and maximum durability
of parts, operate this tool at 90 psig 6.2 bar max air
pressure with 3/8" diameter air supply hose.
•Always wear impact-resistant eye and face
protection when operating or performing maintenance
on this tool.
•Always wear hearing protection when using this
tool. High sound levels can cause permanent hearing
loss. Use hearing protection as recommended by
your employer or OSHA regulation.
•Keep the tool in efficient operating condition.
•Operators and maintenance personnel must be
physically able to handle the bulk, weight and
power of this tool.
•Air powered tools can vibrate in use. Vibration,
repetitive motions or uncomfortable positions over
extended periods of time may be harmful to your
hands and arms. Discontinue use of tool if discomfort,
tingling feeling or pain occurs. Seek medical advice
before resuming use.
•Air under pressure can cause severe injury. Never
direct air at yourself or others. Always turn off the
air supply, drain hose of air pressure and detach
tool from air supply before installing, removing
or adjusting any accessory on this tool, or before
performing any maintenance on this tool. Failure to
do so could result in injury. Whip hoses can cause
serious injury. Always check for damaged, frayed
or loose hoses and fittings, and replace immediately.
Do not use quick detach couplings at tool. See
instructions for correct set-up.
•Place the tool on the work before starting the tool.
•Slipping, tripping and/or falling while operating
air tools can be a major cause of serious injury or
death. Be aware of excess hose left on the walking
or work surface.
•Keep body working stance balanced and firm. Do
not overreach when operating the tool.
•Anticipate and be alert for sudden changes in
motion during start up and operation of any power
tool.
•Do not carry tool by the hose. Protect the hose from
sharp objects and heat.
•Tool shaft may continue to rotate briefly after throttle
is released Avoid direct contact with accessories
during and after use. Gloves will reduce the risk of
cuts or burns.
•Keep away from rotating end of tool. Do not wear
jewelry or loose clothing. Secure long hair. Scalping
can occur if hair is not kept away from tool and
accessories. Choking can occur if neckwear is not
kept away from tool and accessories.
•Never mount a grinding wheel on a sander. A
grinding wheel that bursts can cause very serious
injury or death when not properly guarded. Inspect
backing pad before each use. Do not use if cracked
or damaged.
•Avoid direct contact with moving sanding pad to
prevent pinching or cutting of hands or other body
parts.
•Do not lubricate tools with flammable or volatile
liquids such as kerosene, diesel or jet fuel.
•Do not force tool beyond its rated capacity.
•Do not remove any labels. Replace damaged
labels.
FAILURE TO OBSERVE THESE WARNINGS COULD RESULT IN INJURY
OPERATION
The speed regulator knob can be used as an air throttle and can
be used for setting positive speed control. The air inlet used for
connecting air supply has standard 1/4" NPT thread.
Let the sander do the work. The normal weight of the machine is
sufficient for efficient sanding. Do not put additional pressure on
the machine. This will only slow down the speed of the pad, reduce
sanding efficiency and put an additional burden on the motor. Start
the sander off the work, set it down on the work evenly and move
it slowly back and forth in wide, overlapping areas. When finished
sanding, lift it off the work before stopping the motor.
