MT2769
2
rev. 08/16/13
MT2769 1/2" Impact Wrench
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.
• 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.
• Use accessories recommended by Matco Tools.
• Use only impact wrench sockets and accessories on
this tool. Do not use hand sockets and accessories.
• 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.
• Impact wrenches are not torque control devices.
Fasteners with specific torque requirements must be
checked with suitable torque measuring devises after
installation with an impact wrench
• This product may contain one or more chemicals known
to the State of California to cause cancer and birth
defects or other reproductive harm.
Wash hands
thoroughly after handling.
faIlure TO OBserVe These WarnIngs cOuld resulT In InJury
POWer ManageMenT sysTeM
and TOOl OPeraTIOn
This tool includes a power management system that allows the operator
to adjust the amount of output power in the clockwise direction
(forward). There is no power management system present in the
counter-clockwise direction (reverse). To adjust the power output in the
forward direction, turn the dial shown below left or right in the desired
power direction. Power output is indicated by enlarging black swoosh
on back housing. Lowest power setting indicated by thin swoosh area
with highest power setting being thickest swoosh area.
The Power management system is only for reference and do not act as
specific power settings. This tool includes a tip valve variable speed
trigger design that further allows the operator to reduce the power
output.
This impact wrench is rated at 1/2" SAE bolt size. Rating must be down
graded for spring U bolts, tie bolts, long cap screws, double depth nuts,
badly rusted conditions and spring fasteners as they absorb much of
the impact power. When possible, clamp or wedge the bolt to prevent
springback.
Soak rusted nuts in penetrating oil and break rust seal before removing
with impact wrench. If nut does not start to move in three to five
seconds use a larger size impact wrench. Do not use impact wrench
beyond rated capacity as this will drastically reduce tool life.
NOTE: Actual torque on a fastener is directly related to joint hardness,
tool speed, condition of socket and the time the tool is allowed to
impact.
Use the simplest possible tool-to-socket hook up. Every connection
absorbs energy and reduces power.
WARNING
