MT1872L
2
rev. 08/17/09
MT1872L 6" Extended Cut Off Tool
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.
• Correct grinding wheel mounting is necessary to prevent
injury from broken wheels. Do not use chipped or cracked
grinding wheels. Grinding wheels should be a free fit on the
spindle to prevent stress at the hole. Use only wheel collars
that come with the grinder for mounting the grinding wheel.
Flat washers or other adapters may over stress the wheel.
Always use heavy paper blotter discs between the wheel
collars and the grinding wheel. Tighten the wheel on the
spindle to prevent spin off when the air grinder is
turned off.
• Use accessories recommended by Matco Tools.
• 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
Always use the recommended wheel guard to prevent injury from broken
grinding wheel parts. If a guard has withstood a wheel breakage, discontinue
its use and replace it with a new guard. It may be damaged. Position the guard
between the grinding wheel and the operator. Use barriers to
protect others from wheel fragments and grinding sparks.
Always wear impact-resistant eye and face protection when
involved in the operation of this tool. Even small projectiles
can injure eye and cause blindness. A grinding wheel that
bursts can cause very serious injury.
Measure the air grinder speed daily with a tachometer to
make sure it is not greater than the RPM marked on the
grinding wheel. Never use a grinding wheel marked with a
speed lower than the air grinder speed.
Before grinding, test grinding wheel by briefly running the tool at full throttle.
Be sure to use a barrier (such as under a heavy work table) to stop any
possible broken wheel parts.
To Replace Grinding Discs:
1. Use stop spanner (#66) to hold spindle (#47) in place.
Unscrew disc nut (#56) using stop spanner (#59).
2. Remove old grinding disc and replace with new grinding disc
(grinding disc is not included with the tool).
3. Screw on disc nut (#56) with shoulder side facing tool using
stop spanner (#59) and tighten.
operaTion
