Cooper Bussmann Cleco 15G User Manual
Operation & Service Manual
823006 2/01
15G Series Horizontal Grinders
15
G L-
Series:
15
Grinder:
Throttle Terminations:
LeverL
RPM:
90
120
For additional product information visit our website at http://www.clecotools.com
NORTH AMERICA
CooperTools
P.O. Box 1410
Lexington, SC 29071
140
180
XXX - XXX
Guard:
Terminations:
3/8-243T
Wheel Type:
W
EUROPE
Cooper Power Tools GmbH & Co.
Postfach 30
D-73461 Westhausen
Type 1 Wheel
25
2 1/2
3 In.3
4 In.
4
1
Safety Recommendations
For your safety and the safety of others, read and understand the safety recommendations before operating any
grinder.
Always wear protective equipment and clothing.
!
WARNING
Wear respirator where
necessary.
WARNING!
Impact resistant eye protection
must be worn while operating
or working near this tool.
Caution: Faceshields do not provide unlimited protection
against flying particles and are not to be considered as eye
protection. ANSI Z87.1 states that separate eyewear shall
be used. For additional information on eye protection, refer
to Federal OSHA Regulations, 29 CFR, Section 1910.133,
Eye and Face Protection, and ANSI Z87.1, Occupational
and Educational Eye and Face Protection. This standard is
available from the American National Standards Institute,
Inc., 11 West 42nd street, New York, NY 10036.
CAUTION!
Personal hearing protection is
recommended when operating
or working near this tool.
Hearing protection is recommended in high noise areas
(above 85 dBA). Close proximity of additional tools, reflective surfaces, process noises, and resonant structures can
substantially contribute to the sound level experienced by
the operator. Proper hearing conservation measures, including annual audiograms and training in the use and fit of
hearing protection devices may be necessary. For additional information on hearing protection, refer to Federal
OSHA Regulations, 29 CFR, Section 1910.95, Occupational Noise Exposure, and American National Standards
Institute, ANSI S12.6, Hearing Protectors.
Grinding or other use of this tool may produce hazardous
fumes and/or dust. To avoid adverse health effects utilize
adequate ventilation and/or a respirator. Read the material
safety data sheet of any materials involved in the grinding
process.
Cleco grinders are designed to operate on 90 psig (6.2 bar)
max. air pressure. If the tool is properly sized and applied,
higher air pressure is unnecessary. Excessive air pressure
increases the loads and stresses on the tool parts and may
result in breakage. Installation of a filter-regulator-lubricator in the air supply line is highly recommended.
Never use the air hose for supporting, lifting, or lowering the
tool. Use a safety line or cable on the tool when working in
elevated areas.
Before tool is connected to air supply, check throttle for
proper operation, i.e., throttle moves freely and returns to
closed position. Be careful not endanger adjacent personnel, clear air hose of accumulated dust and moisture. Use
protective barriers where necessary — hot sparks can
burn. Barriers also help reduce noise levels. Before
removing tool from service or changing accessories, make
sure air line is shut off and drained of air to prevent the tool
from operating if the throttle is accidently engaged. The use
of a self-relieving valve for this purpose is highly recommended.
WARNING!
Do not operate without proper
wheel guard in place.
• Gloves and other protective clothing should be worn
as required.
• Do not wear clothing that may restrict movement,
become entangled or in any way interfere with the
safe operation of grinders.
2
The wheel guard is designed to prevent serious injury to the
operator in the event of wheel failure and must not be
modified in any way. Any wheel guard that is damaged or
bent must be replaced.
NOTE: The grinder must be held so that the opening in the
guard is away from the operator.
Safety Recommendations
The guard must be securely attached to the grinder with all
bolts, nuts and lockwashers in place and torqued to 30 to
40 in. lbs.
Warning and Instruction Label
0
1
2
6
3
5
4
202595 & 202596
WARNING TAG
Read Operating Instructions carefully. Follow
the Safety Recommendations for your safety
and the safety of others.
Do not remove this tag until
the operator of this tool has
read these safety precautions.
869974
WARNING!
Impact resistant eye protection
must be worn while operating
or working near this tool.
CAUTION!
Personal hearing protection is
recommended when operating
or working near this tool.
Hearing protection is recommended in high noise
areas (above 85 dBA). Close proximity of other
tools, reflective surfaces, process noises, and
MODEL
SERIAL NO.
CAUTION
WARNING
!
Avoid repeated bending of wrists and hands.
Repetitive work motions and/or vibration
can cause injury to hands and arms.
Use minimum hand grip force consistent with
proper control and safe operation.
Keep body and hands warm and dry.
Avoid anything that inhibits blood circulation.
Avoid continuous vibration exposure.
Keep wrists straight.
resonant structures can substantially contribute
to the sound level experienced by the user.
Cleco
OVER
The speed rating and warnings are roll stamped on housing
and should be replaced for legibility in the event or damage.
Warning tags and warning labels should be maintained.
Warning tags and warning labels are available from the
manufacturer.
Before mounting a wheel, after all tool repairs, and whenever a grinder is issued for use, check the free speed of the
grinder with a tachometer to make certain that the actual
free speed at 90 psig (6.2 bar) does not exceed the rated
free speed stamped on the tool. Grinders in use on the job
must be similarly checked at least once every twenty hours
of operation, or once every week, whichever is more
frequent. Checking free speed after the removal of each
worn wheel and before mounting a new wheel is highly
recommended.
INSPECT THE GRINDING WHEEL!
Check the maximum safe RPM marked on the wheel.
Never use a wheel rated below the actual tool speed.
Inspect the wheel for cracks or chips, water stains, or signs
of abuse or improper storage. Cracked, chipped or faulty
grinding wheels are dangerous and must not be used.
They must be destroyed rather than risk their use by
someone who may not notice that they are damaged.
• Improper mounting
• Imbalance
• Improper shipment or storage
• Exposure to water, solvents, high humidity,
freezing and extreme temperatures
• Mismatched speed ratings
• Age
Abrasive wheels known to have been subjected to any
of the above conditions can burst violently. Never use
an abrasive wheel known to have been subjected to
any of the above conditions.
CHECK FLANGE
WARNING
!
Extreme caution should
be exercised not to use
excessive side pressure.
Excessive side pressure
can break the wheel and
result in severe injury.
Guard not
shown for
clarity.
GRINDING
FACE
Blotter
Relieved flanges
minimum 1/3 dia.
of wheel dia.
TYPE 1
WHEEL
Do not grind with
side of Type 1 wheel.
On Type 1 wheel
grinders, the driving flanges must be
the relieved-type,
free of nicks and
burrs or other flaws
that might create
stress concentrations on the grinding wheel.
Spindles should be
checked for damage or abuse. Blotters must be used and
be at least as large in diameter as the flanges. Diameters
of both driving flange and outer flange must be identical and
both must measure at least one-third the diameter of the
grinding wheel mounted between them. Both flanges must
be properly relieved as per ANSI Safety Code B7.1 and
ANSI B186.1. (See page 6)
Select Type 1 wheels with proper hole size and speed
rating. Never adapt wheels with an oversize hole to fit the
spindle.
ABRASIVE WHEEL MOUNTING & BEGINNING GRINDING OPERATION
WARNING!
Fragments from an abrasive wheel
can cause serious injury or death.
Do not operate without proper
wheel guard in place.
Causes of abrasive wheel failures have been traced to
such factors as:
• Dropping, bumping, or abuse (careless handling
of the grinder or wheel)
The spindle end nut should be tightened firmly against the
outer flange of Type 1 wheels to assure the necessary
friction against the blotter faces to drive the wheel.
Overtightening can cause wheel
CAUTION
!
breakage.
Type 1 Wheel breakage can also occur if:
• Outer flange is left off
• Outer flange is reversed
• A washer is used in place of proper flange
• Outer flange and driving flange are of unequal
diameters
• No wheel blotters are used
3
Safety Recommendations
Before beginning operations or after
Cleco
MODEL
SERIAL NO.
CAUTION
mounting a wheel, the tool must be run
for one (1) minute in a protected enclosure to check the integrity or the wheel.
During this time or any other time, no
one should stand in front of or in line of
the wheel. When starting work with a
cold wheel, apply it gradually to the
workpiece until the wheel becomes
STEEL
warm.
DRUM
DO NOT CONTINUE TO USE A GRINDER IF:
• It is not equipped with the proper wheel guard
• The speed rating of the wheel is less than the
speed of the grinder
• It starts to vibrate
• You sense any changes in tool speed or an
unusual increase in noise output that would
indicate the tool is running at excessive speed.
• You notice excessive end play in the spindle
• You hear any unusual sound from the grinder
RETURN THE TOOL TO THE TOOL CRIB FOR SERVICE
IMMEDIATELY!
Some individu-
WARNING
!
Repetitive work motions and/or vibration
may cause injury to hands and arms.
Use minimum hand grip force consistent
with proper control and safe operation.
Keep body and hands warm and dry.
Avoid anything that inhibits blood circulation.
Avoid continuous vibration exposure.
Keep wrists straight.
Avoid repeated bending of wrists and hands.
exposure to extended vibration. Cumulative trauma disorders such as carpal tunnel syndrome and tendonitis may
be caused or aggravated by repetitious, forceful exertions
of the hands and arms. Vibration may contribute to a
condition called Raynaud's Syndrome. These disorders
develop gradually over periods of weeks, months, and
years. It is presently unknown to what extent exposure to
vibrations or repetitive motions may contribute to the disorders. Hereditary factors, vasculatory or circulatory problems, exposure to cold and dampness, diet, smoking and
work practices are thought to contribute to the conditions.
Any tool operator should be aware of the following warning
signs and symptoms so that a problem can be addressed
als may be susceptible to disorders of the
hands and
arms when performing tasks
consisting of
highly repetitive
motions and/or
before it becomes a debilitating injury. Any user suffering
prolonged symptoms of tingling, numbness, blanching of
fingers, clumsiness or weakened grip, nocturnal pain in the
hand, or any other disorder of the shoulders, arms, wrists,
or fingers is advised to consult a physician. If it is determined that the symptoms are job related or aggravated by
movements and postures dictated by the job design, it may
be necessary for the employer to take steps to prevent
further occurrences. These steps might include, but are not
limited to, repositioning the workpiece or redesigning the
workstation, reassigning workers to other jobs, rotating
jobs, changing work pace, and/or changing the type of tool
used so as to minimize stress on the operator. Some tasks
may require more than one type of tool to obtain the
optimum operator/tool/task relationship.
The following suggestions will help reduce or moderate the
effects of repetitive work motions and/or extended vibration
exposure:
• Use a minimum hand grip force consistent with
proper control and safe operation
• Keep body and hands warm and dry (cold weather is
reported to be a major factor contributing to Raynaud's
Syndrome)
• Avoid anything that inhibits blood circulation
—Smoking Tobacco (another contributing
factor)
—Cold Temperatures
—Certain Drugs
Avoid Avoid
Extension
OK Avoid OK
Neutral
Flexion Radial Deviation
Neutral Ulnar Deviation
Avoid
• Tasks should be performed in such a manner that the
wrists are maintained in a neutral position, which is
not flexed, hyperextended, or turned side to side
• Stressful postures should be avoided — select a tool
appropriate for the job and work location
• Avoid highly repetitive movements of hands and
wrists, and continuous vibration exposure (after
each period of operation, exercise to increase blood
circulation)
• Use quality abrasive wheels
• Keep tool well maintained and replace worn parts
Work gloves with vibration reducing liners and wrist supports are available from some manufacturers of industrial
work gloves. Tool wraps and grips are also available from
a number of different manufacturers. These gloves, wraps,
and wrist supports are designed to reduce and moderate
the effects of extended vibration exposure and repetitive
4
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