Stark 45501 Original instruction manual

4-1/2” ELECTRIC GRINDER 8.2A
SAVE THIS MANUAL: KEEP THIS MANUAL FOR SAFETY WARNINGS, PRECAUTIONS, ASSEMBLY,
OPERATING, INSPECTION, MAINTENANCE AND CLEANING PROCEDURES. WRITE THE PRODUCT’S
SERIAL NUMBER ON THE BACK OF THE MANUAL NEAR THE ASSEMBLY DIAGRAM (OR MONTH
AND YEAR OF PURCHASE IF PRODUCT HAS NO NUMBER)
OWNER’S MANUAL AND SAFETY INSTRUCTIONS
ITEM: 45501
FOR QUESTIONS PLEASE CALL OUR CUSTOMER SUPPORT: 909.628.4900 MON-FRI 9AM TO 3PM PST

IMPORTANT SAFETY INFORMATION
1
GENERAL SAFETY WARNINGS
The warnings, precautions, and instructions discussed in this instruction manual cannot cover all possible
conditions and situations that may occur. It must be understood by the operator that common sense and
caution are factors which cannot be built into this product, but must be supplied by the operator. Read
carefully and understand all ASSEMBLY AND OPERATION INSTRUCTIONS before operating. Failure to
follow the safety rules and other basic safety precautions may result in serious personal injury.
Keep work area clean and well lit. Cluttered or dark areas invite accidents
Do not operate power tools in explosive atmospheres, such as in the presence of ammable liquids,
gases or dust. Power tools create sparks which may ignite the dust or fumes.
Keep children and bystanders away while operating a power tool. Distractions can cause you to lose
control.
Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any adapter plugs
with grounded power tools. Unmodied plugs and matching outlets will reduce risk of electric shock.
If operating a power tool in a damp location is unavoidable, use a Ground Fault Circuit Interrupter (GFCI)
protected supply. Use of a GFCI reduces the risk of electric shock.
When operating a power tool outdoors, use an extension cord suitable for outdoor use. Use of a cord
suitable for outdoor use reduces the risk of electric shock.
Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep cord
away from heat, oil, sharp edges or moving parts. Damaged or entangled cords increase the risk of
electric shock.
Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of
electric shock.
Avoid body contact with grounded surfaces such as pipes, radiators, ranges and refrigerators. There is an
increased risk of electric shock if your body is grounded.
Do not overreach. Keep proper footing and balance at all times. This enables better control of the power
tool in unexpected situations.
Remove any adjusting key or wrench before turning the power tool on. A wrench or a key left attached to
a rotating part of the power tool may result in personal injury.
Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use
a power tool while you are tired or under the inuence of drugs, alcohol or medication. A moment of
inattention while operating power tools may result in serious personal injury.
Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep cord
away from heat, oil, sharp edges or moving parts. Damaged or entangled cords increase the risk of
electric shock.
Use personal protective equipment. Always wear eye protection. Safety equipment such as dust mask,
non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal
injuries.
Prevent unintentional starting. Ensure the switch is in the off-position before connecting to power source.
Carrying power tools with your nger on the switch or energizing power tools that have the switch on
invites accidents.

IMPORTANT SAFETY INFORMATION
2
Dress properly. Do not wear loose clothing or jewelry. Keep your hair, clothing and gloves away from
moving parts. Loose clothes, jewelry or long hair can be caught in moving parts.
Disconnect the plug from the power source before making any adjustments, changing accessories, or
storing power tools. Such preventive safety measures reduce the risk of starting the power tool accidentally.
Do not use the power tool if the switch does not turn it on and off. Any power tool that cannot be controlled
with the switch is dangerous and must be repaired.
Do not force the power tool. Use the correct power tool for your application. The correct power tool will do
the job better and safer at the rate for which it was designed.
Only use safety equipment that has been approved by an appropriate standards agency. Unapproved
safety equipment may not provide adequate protection. Eye protection must be ANSI-approved and
breathing protection must be NIOSHapproved for the specic hazards in the work area.
If devices are provided for the connection of dust extraction and collection facilities, ensure these are
connected and properly used. Use of these devices can reduce dust-related hazards.
Do not use accessories which are not specically designed and recommended by the tool manufacturer.
Just because the accessory can be attached to your power tool, it does not assure safe operation.
This power tool is intended to function as a grinder, sander or wire brushing tool. Read all safety warnings,
instructions, illustrations and specications provided with this power tool. Failure to follow all instructions
listed below may result in electric shock, re and/or serious injury.
Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power
tool or these instructions to operate the power tool. Power tools are dangerous in the hands of untrained
users.
Maintain power tools. Check for misalignment or binding of moving parts, breakage of parts and any other
condition that may affect the power tool’s operation. If damaged, have the power tool repaired before use.
Many accidents are caused by poorly maintained power tools.
Use the power tool and accessories in accordance with these instructions, taking into account the working
conditions and the work to be performed. Use of the power tool for operations different from those intended
could result in a hazardous situation.
Have your power tool serviced by a qualied repair person using only identical replacement parts. This will
ensure that the safety of the power tool is maintained.
The rated speed of the accessory must be at least equal to the maximum speed marked on the power
tool. Accessories running faster than their RATED SPEED can break and y apart.
Do not use a damaged accessory. Before each use inspect the accessory such as abrasive wheels for
chips and cracks, backing pad for cracks, tear or excess wear, wire brush for loose or cracked wires.
The outside diameter and the thickness of your accessory must be within the capacity rating of your power
tool. Incorrectly sized accessories cannot be adequately guarded or controlled.
Wear personal protective equipment. Depending on application, use face shield, safety goggles or safety
glasses. As appropriate, wear dust mask, hearing protectors, gloves and workshop apron capable of
stopping small abrasive or work piece fragments. The eye protection must be capable of stopping ying
debris generated by various operations.
Keep bystanders a safe distance away from work area. Anyone entering the work area must wear personal
protective equipment.

OPERATION
3
1. Use specied voltage: The tool should be operated on a power line, the voltage of which will not exceed
that specied voltage on the nameplate more than 10%.
OPERATING INSTRUCTIONS
2. Inspect the tool before use: The grinding wheel must be inspected before use. After conrming everything
is in working order. After assembling the wheel idle for one minute to conrm everything is working properly.
3. Avoid overloading the tool, do not apply too much pressure on the tool while cutting in a straight or slanted
line In case the rotational speed drops abnormally, the pressure should be decreased immediately. When the
tool stops abruptly or is blocked, the power supply should be cut off at once.
4. Replace the carbon brushes in time. Worn out brushes should be replaced in time (both brushes should
be changed at the same time), or imperfect contact between the brushes and the commutator will result in
ring sparks which will damage the commutator or burn the armature.
5. The tool must not be used in the following circumstances. If any insulation impairment breakage of the
power supply cord or cable guard, cracks or imperfect contact of the switch, plug and socket and faults such
as discontinuous running, heavy sparking etc should occur, stop using the tool and have it repaired at once.
6. Always keep the tool clean. The ventilation passage of the tool should be kept clean and free from
obstruction and care should be taken to prevent iron chips or other foreign matters from entering passage.
Recondition immediately after use to keep the tool clean and in the best condition.
Make sure when using the tool, you maintain good balance. Wear suitable clothing and safety goggles.
Do not wear gloves or baggy clothes.
Use a specied grinding wheel. The wheel used by the grinder must be reinforced with ber resin bond
and with a safety liner not lower than 80 meters per second. If the wheel has been kept for more than a
year the rotational strength test should be made before use.
Pay attention to the wheel guard. This wheel guard is an important part to ensure safety. Do not operate
the tool when the wheel guard has been dismantled. If a substitute should be used, it should be made of
steel plate or a material of equal strength. Brittle materials are strictly prohibited. The opening angle of the
guard should not be more than 180 degrees.
DO NOT use the tool is environments where moisture, heat or combustible materials are present.
The plug should be used properly. Do not change the plug and insert the naked wire directly in the socket.
DO NOT use the power cord indiscriminately. The cord should not be lengthened or changed. The cord
should not come into contact with a heat source and should be protected from beings scraped, cut or
jammed.
Prevent the tool from starting unexpectedly. When putting the plug into the socket, make sure the power
switch is in the OFF position. NEVER carry the tool with your nger pressing the trigger on the switch.
CAUTION:

OPERATION MAINTENANCE
4
MAINTENANCE
Grease the tool frequently: The grease in this tool can be easily volatilized and therefore the grease in the
gear box should be kept clean and often replenished or renewed.
Frequent inspection and maintenance: The tool should be inspected and maintained frequently. Check
and make sure the power supply cord internal wire, plug and witch are in good condition and that the
insulation resistance is within normal limit.
While disassembling the tool, care must be taken to keep all the disassembled parts including insulating
sheets and brushes, etc. Damaged parts must be replaced with new ones. Alternative material with features
not as good as the original one or parts not in accordance with the original specications must not be used.
Check and see if the direction of the rotation of the protruded shaft corresponds to the marked on the head
enclosure. Facing the protruding shaft, you can see it rotating counter-clockwise,
After storing the power tool for extended periods, make sure to test the tool before use for insulation resistance
between the winding and the casing with a 500V, megger. Should the insulation resistance be less than 7
megger, the winding must be dry. Make to store the tool ins a clean. Dry area out of reach of children.
1. A pair of brushes
ACCESSORIES
2. A set of tools to dismantle and t the wheel.
TROUBLESHOOTING

TROUBLESHOOTING
5

PARTS
6

PARTS
7

8
OF NOTE
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY
DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR
DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT
HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS
QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR
DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE
UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS, AND NOT BY THE BUYER. THE BUYER
ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL
PRODUCT OR REPLACEMENT PARTS THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION
OF REPLACEMENT PARTS THERETO.
Record Product’s Serial Number Here:
Note: If product has no serial number, record month and year of purchase instead.
Note: Some parts are listed and shown for illustration purposes only and are not available individually
as replacement parts.
PLEASE READ THE FOLLOWING CAREFULLY
PRODUCT MADE IN CHINA