Trelawny 735.7075A, Руководство по эксплуатации и обслуживанию

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OPERATION
Foreword
Thank you for your purchase of the
TRELAWNY 7” Angle Grinder
This manual contains the necessary
maintenance information for you to
ensure proper operation and care for
this machine.
It is essential for you to read
through this manual thoroughly.
In the unlikely event that you
experience problems with your Angle
Grinder, please do not hesitate to
contact your local Trelawny dealer or
agent. We always welcome feedback
and comments from our valued
customers.
Safety Precautions
WEAR SAFETY BOOTS, FACE
MASK, SHATTERPROOF GLASSES,
HELMET, GLOVES and any other
personal protective equipment
required for the working conditions.
Avoid loose clothing; this may become
trapped in moving parts and cause
serious injury.
AIR MOTORS ARE NOT
ELECTRICALLY INSULATED.
ENSURE THAT HANDS and clothing
are kept away from rotating parts.
ONLY YOUR SUPERVISOR OR
AUTHORISED MAINTENANCE
ENGINEER should adjust the speed
control setting within the air motor;
although this has been set to the
optimum speed during manufacture,
the speed should be checked on a
daily basis.
ENSURE THAT THE WORK PLACE
IS WELL VENTILATED. Avoid
operating engine-powered
compressors in an enclosed area,
since engine exhaust gases are
poisonous.
BE AWARE, when the angle grinder is
switched off, the work head will
continue to rotate briefly.
The grinder must never be used if a
wheel guard (disc cover) item (53) is
not fitted.
The air supply should be lubricated. It is
strongly recommended that an air filter,
regulator, lubricator is used, this will supply
clean, lubricated air at the correct pressure
to the tool.
Details of such equipment can be obtained
from your supplier.
If such equipment is not used then the tool
should be lubricated by shutting off the air
supply to the tool, depressurising the line
by pressing the trigger on the tool.
Disconnect the air line and pour into the
air intake a teaspoonful (5ml) of a suitable
pneumatic motor lubricating oil preferably
incorporating a rust inhibitor.
Reconnect tool to air supply and run tool
slowly for a few seconds to allow air to
circulate the oil. If the tool is used
frequently lubricate on daily basis and
also if the tool starts to slow or lose power.
Pre-Start Check (Daily)
Check all bolts and screws for tightness.
Ensure that all fittings are secure.
The air motor speed is preset at the
factory to 7,500 rpm (free running).
Always clear the air hose before
connection to the machine.
Ensure that no moisture (condensation)
is present in the air hose.
Check the security of all hoses clamps
and fittings, and that the air pressure is
correct at 90psi (6.3bar).
The air motor uses approximately 7cfm
of air.
The Maximum air pressure is 100psi
(7bar) the air consumption will increase
as the air pressure rises.
It is recommended that the compressor
is capable of supplying at least 20cfm
supply of free air (not displaced, as given
by some compressor manufactures).
This allows for a little “headroom” so the
compressor has some rest periods.
In particularly cold weather it is
recommended that a proprietary anti-
freeze lubricating oil is used.
Risk of Hand-arm
Vibration injury
These tools may cause Hand-arm
Vibration Syndrome injury if their use is
not adequately managed.
We advise you to carry out a risk
assessment and to implement measures
such as; limiting exposure time [i.e.
actual trigger time, not total time at
work], job rotation, ensuring the tools are
used correctly.
Ensure the tools are maintained
according to our recommendations, and
ensuring that the operators wear
personal protective equipment [PPE]
particularly gloves and clothing to
keep them warm and dry.
Employers should consider setting up a
programme of health surveillance to
establish a benchmark for each operator
and to detect any early symptoms of
vibration injury.
We are not aware of any PPE that
provides protection against vibration
injury by attenuating vibration emissions.
See ‘ Specifications ’ section for vibration
emission data.
Grinding Discs, Flap
Wheels & Applications
Grinding Discs
851.4070 - 7” for use on steel.
Warning:
Do not use Type1, Type 41 and Type 42
cut-off wheels as they can cause serious
injury.
Only use Type 27 grinding wheels with
this tool.
Type 27 wheels are a flat wheel that
have a “depressed centre/raised hub”
some are fitted with a threaded boss,
see special fitting instruction for these in
“Replacing Grinding Discs”.
Use of tool
This right angle grinder is designed to be
used with reinforced resin bonded
depressed centre grinding wheels that
have a permitted rotational speed in
excess of 7,500 RPM.
The tool is designed to be used for
grinding and dressing of welds, etc. but
not for cutting off.