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Speedaire
®
Reversible Die Grinder
5YAR8
Speedaire® Operating Instructions and Parts Manual
Figure 2 - Air Diagram
work with approved safety
equipment, such as dust masks that
are specially designed to filter out
microscopic particle
5.
Air Supply and Connection
Hazards.
Air under pressure can cause severe
injury.
Always shut off air supply, purge hose of
air pressure and disconnect tool from air
supply when not in use, before changing
accessories or when making repairs.
Never direct air at yourself or others.
Whipping hoses can cause serious injury.
Always check for damaged or loose hoses
and fittings.
Do not use quick disconnect
couplings at tool. For correct set up see
Figure 2 for correct set up.
When universal twist couplings
are used, lock pins must be installed.
Do not exceed maximum air pressure of
90 PSI or as stated on tool nameplate
.
Installation
Designed to operate on 90 PSI, lower
pressure (below 90 PSI) will reduce
performance of the tool while higher air
pressure over 90 PSI raise the performance of
the tool beyond its rated capacity and could
cause serious damage to tool and user.
Always use clean dry air. Excessive moisture
and dirt will greatly reduce the life of any air
motor. We recommend the installation of an
in-line filter-regulator-lubricator as close to
the tool as possible.
Pre-Operation
Before the tool is connected to the air
supply, clean the air hose of accumulated
dust and moisture. Before removing a tool
for service or changing accessories, make
sure the air line is shut off and drained of air.
This will prevent the tool from operating if
the throttle is accidentally engaged.
Operation
1. Supply tool with 90 PSI of clean, dry air.
Higher pressure drastically reduces tool
life. Connect tool to air line using pipe,
hose, and fitting sizes shown in Figure 2.
Do not install a quick coupler directly into
the grinder throttle handle.
2.
Operating Hazards
Never mount a grinding wheel, cut off
wheel or router cutter on a die grinder
or tire buffer. A grinding wheel or other
accessory that bursts can cause very
serious injury or death.
Grinding accessory's rated speed must be
equal to or greater than the speed of the
die grinder.
Use only mounted wheels or tire buffing
accessories with adequate speed rating
and the correct shaft diameter.
Do not use wire brushes, drill bits, or any
other accessory other than mounted
wheels, burrs and tire buffing accessories.
Damaged, warn or incorrectly mounted
accessories can cause higher vibration.
To reduce exposures to vibration ensure
burring tools are sharp and this tool
and all accessories are in proper working
condition.
Ensure that the workpiece is properly
supported.
Avoid direct contact with rotating spindle
and accessory to prevent cutting of hands
or other body parts. Wear gloves to help
protect hands. Tool continues to run after
the throttle lever has been released.
Do not disable the lock off feature on the
throttle lever.
This tool and its accessories must not be
modified.
Operators and maintenance personnel
must be physically able to handle the
power of the tool and capable of
performing the job task.
Always wear impact-resistant eye and face
protection when involved with or near
the operation, repair or maintenance of
the tool or changing accessories on the
tool.
Gloves and protective clothing are
recommended.
Even small projectiles can cause eye
injuries and blindness.
Be sure all others in the area are wearing
impact-resistant eye and face protection.
Measure the air tool speed daily with a
tachometer to make sure it is not greater
than the RPM marked on the grinding
accessory.
Maximize the gripping length of the
accessory, it must not be less than .390 in.
(10mm). Increased overhang of a
mounted wheel reduces its permitted
speed - Refer to manufacturer's
recommendations and (ANSI B7.1).
3.
Air Supply and Connection
Hazards.
Air under pressure can cause severe
injury.
Always shut off air supply, drain hose of
air pressure and disconnect tool from air
supply when not in use, before changing
accessories or when making repairs.
Never direct air at yourself or
anyone else.
Whipping hoses can cause serious injury.
Always check for damaged or loose hoses
and fittings.
Do not use quick disconnect couplings at
tool. See Figure 2 for correct set up.
Whenever universal twist couplings
are used, lock pins must be installed.
Do not exceed maximum air pressure of
90 PSI or as stated on tool nameplate
.
Maintenance
Lubrication
Use an air line lubricator with Mobil Almo
525 air tool oil (model 4ZF22), adjusted
to two (2) drops per minute. If an air line
lubricator cannot be used, add air motor
oil to the inlet once a day.
