Crown CT15232N User manual

上海脉链五金工具有限公司
上海市江场三路138号4楼
Shanghai Merit Link Hardware & Tools Co., Ltd.
138 Jiangchang 3rd road, 4th floor, Shanghai
CT15232N
CROWN-PT_Man.CT15232N_06.2020_V.1.0_ASIA-02

CT15232N

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WARNING –To reduce the risk of injury, user must read instruction manual!
I. General safety instructions
General Power Tool Safety Warnings
WARNING! Read all safety warnings and all instructions.
Failure to follow the warnings and instructions may result in electric shock, fire and/or
serious injury.
Save all warnings and instructions for future reference.
1) Work area safety
a) Keep work area clean and well lit. Cluttered or dark areas invite accidents.
b) Do not operate power tools in explosive atmospheres, such as in the presence of flammable
liquids, gases or dust. Power tools create sparks which may ignite the dust or fumes.
c) Keep children and bystanders away while operating a power tool. Distractions can cause you to
lose control.
2) Electrical safety
a) Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any
adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching outlets will
reduce risk of electric shock.
b) Avoid body contact with earthed or grounded surfaces, such as pipes, radiators, ranges and
refrigerators. There is an increased risk of electric shock if your body is earthed or grounded.
c) Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the
risk of electric shock.
d) 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 .
e) 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.
f) If operating a power tool in a damp location is unavoidable, use a residual current device (RCD)
protected supply. Use of an RCD reduces the risk of electric shock.
3) Personal safety
a) 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 influence of drugs, alcohol or medication. A
moment of inattention while operating power tools may result in serious personal injury.
b) Use personal protective equipment. Always wear eye protection. Protective equipment such as
dust mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will
reduce personal injuries.
c) Prevent unintentional starting. Ensure the switch is in the off-position before connecting to
power source and/or battery pack, picking up or carrying the tool. Carrying power tools with your

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finger on the switch or energising power tools that have the switch on invites accidents.
d) 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.
e) Do not overreach. Keep proper footing and balance at all times. This enables better control of the
power tool in unexpected situations.
f) 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.
g) If devices are provided for the connection of dust extraction and collection facilities, ensure
these are connected and properly used. Use of dust collection can reduce dust-related hazards.
4) Power tool use and care
a) 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.
b) 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.
c) Disconnect the plug from the power source and/or the battery pack from the power tool before
making any adjustments, changing accessories, or storing power tools. Such preventive safety
measures reduce the risk of starting the power tool accidentally.
d) 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 .
e) 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.
f) Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are
less likely to bind and are easier to control.
g) Use the power tool, accessories and tool bits etc. 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.
5) Service
a) Have your power tool serviced by a qualified repair person using only identical replacement
parts . This will ensure that the safety of the power tool is maintained.
II.Special safety instructions cut-off saw
The following safety precautions for use of electric hammer are required to be
followed. Otherwise, damages may be caused to the tool or your body.
The Particular Requirements for Cutting Machine
1) When the cutting operation is in process, please wait for the motor entering into the normal
operation, then the work shall be continued; if the motor is operated before entering into the normal

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operation, the cut surface of the workpiece shall be uneven.
2) The overlarge load shall not be applied to the products; the incorrect operating ways shall result in
the breakage of the grinding wheel, and the motor shall be damaged.
3) The surface bounce of the grinding wheel shall be confirmed; if the bounce of the new grinding
wheel is overlarge, then the grinding wheel shall be broken.If surface runout of grinding wheel is too
large, please replace it with a new one.
4) The eyes protector shall be worn;
5) The broken grinding wheel shall not be used;
6) The proximate matter without shield at the right position shall not be used;
7) The grinding wheel recommended by the manufacture shall only be used, and the indicated speed
shall equal or exceeds the indicated speed of the tools; the grinding wheel with linear speed no less
than 4800ｍ/min shall be adopted.
8) The operating instructions provided by the grinding wheel manufacture shall be read carefully.
9) Do not impact the grinding wheel. If the grinding wheel under rotation is impacted, then the
grinding wheel shall be broken, and the serious injury shall be caused to the human body.
10) Do not use the surface of the grinding wheel to grind the work. If the surface of the grinding wheel
is used to grind the work, then the grinding wheel shall be broken, and the serious injury shall be
caused to the human body.
11) Unconcerned personnel shall not be allowed to get close. During the operation, the spark produced
shall make injury to the human body.
12) When the parts (clips, gaskets, screws, etc.) have any breakage, please stop using them. When it is
not fixed and stable while using, the grinding wheel shall be broken, and the injury to the human body
shall be caused.
13) The direction of the spark produced in the cutting shall against to the place which is not dangerous.
If any inflammable matters exist around the spark, the safety accidents may be caused.
14) The operation shall be executed after the workpiece is reliably clamped to the working chassis. No
fixed clamped workpiece shall be burst out to cause the injury to the human body.
Use of signs
Attention: Please make sure to identify the product model on nameplates as the same
machine can have different parameters. The voltage range of the model is 220~230 V,
50/60 Hz,which is inapplicable to low-voltage areas and countries with special
regulations on power utilization.
Read the instruction manual
Please put on
protective glasses.
Please put on earmuff.
Please put on
insulating gloves.

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Please put on insulating
rubber soled shoes.
please protect
your fingers
please notice the
power line
Protection ground
marking.
Garbage disposal replaced by material recycling. In response to environmental
protection, machines, accessories and packages, once damaged, shall be classified in
details and completely recycled. The instruction is printed on chloride -free recycled
paper, and the plastic p ortion provides detailed information on its components.
For your safety, a class of tools must ensure that the socket and plug used have a safe
and reliable grounding device.
III .Product introduction/description and technic al parameters
Read all warnings, prompts and instructions. Failure in following warnings, prompts
and instructions can result in electric shock, fi re and/or other serious injuries.
Technical parameters
Product model CT15232N
Rated power (W) 2200
Rated voltage (V) 220-230
Frequency (Hz) 50/60
Amperage at voltage (A) 10
No -load speed (min-1) 3900
Max. of cutting disc (mm) 355
Bore  of cutting disc (mm) 25.4
Max. thickness of cutting disc (mm) 3.5
Max. size of cut -off wor kpiece:
Circular section work piece (LxH,0 °/45°mm） 130/110
Square section work piece (LxH,0 °/45°mm） 115/90
Rectangular cross section wor kpiece
(LxH,0°/45°mm）
95*205/85*100
Angle work piece (LxH,0 °/45°mm） 140/85

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Product description
1. Ventilation slots
2 Carbon brush cover
3 Carrying handle
4 Lock-on button
5 Switch trigger
6 Handle
7 Spindle lock
8 Guard cover
9 Cutting disc
10 Sliding guard cover
11 Pressing plate of the
workpiece
12 Lead screw
13 Clamping nut
14 Hand shank of lead
screw
15 Wrench
16 Screw
17 Crumbs blocking
cover
18 Adjusting screw
19 Bolt
20 Adjusting stop
21 Base plate
22. Limit button of the
handpiece
23. Carbon brush
IV.Function and operation instructions & accessory installation instructions
Attention: before the use, please read the instruction carefully. When the electric tool
and fittings are going to be maintained, the cable plug must be pulled out from the
socket.
1.Operation of the handpiece limit (see Fig. 1)
When the tools need to be fixed, then the operating handle shall be pressed downward, and the
handpiece limit button needs to be inserted into the limit hole, then the tool can be fixed.
When the tool needs to be put into use, the handpiece limit button needs to be pulled out outward,
and after the handpiece of the tool is put up and reset, then it can be put into use.
2. Operation of the switch (see Fig. 2)
For starting of this tool, you just need to raise the switch trigger. When the trigger is loosen, then the
tool shall stop rotating, if you want to make the machine rotate continuously, you just need to press the
self-locking button after the switch trigger is raised, and if you raise the trigger again, then loosen it,
the continuous rotation shall be stopped.
3. Removal and installation methods of the grinding wheel (see Fig. 3)
1). Remove the grinding wheel. Use the left hand to push the stop pin Ato the hole of gear B, and then
use the wrenchFto loosen the bolt E, then the grinding wheel Gshall be taken out.
2). Install the grinding wheel .After the dust in the grinding wheel splint C, spacer Dand bolt E, then the
grinding wheel Gshall be installed. Then the grinding wheel splint C, spacer Dand bolt Eshall be
installed in order. As last, use the hand to grasp grinding wheel Gtightly, and use wrench Fto lock up
the bolt E. After the installation in finished, the stop pin Ashall be confirmed that whether it returns to
the initial position.
4. Methods of fixing the workpiece (see Fig. 4)
Loosen the workpiece: rotate the hand shank of the lead screw in anticlockwise to loose the thread,
then push the clamping nut to the direction of the hand shank of the lead screw, at this time, pull the
lead screw backward quickly and remove the workpiece.
Clamp the workpiece: push the lead screw to the clamped workpiece of the pressing plate of the

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workpiece, then push the clamping nut so as to contact with the lead screw thread, and then rotate the
hand shank of the lead screw in clockwise, then the workpiece shall be fixed.
Attention:If the workpiece needs larger space or distance, then please adjust the space or distance as
following procedures, then refer the front and back adjustment status to Fig. 5.
Remove two bolts which fix the guide plate, then move the guide plate as Fig. 6. Then install the bolts
for fixation
5. Methods of setting up the cutting angle (see Fig. 7)
If the cutting angle needs to be changed, please loose two bolts which are fixing the guide plate, and
then rotate the guide plate to the required angle, lastly the bolts shall be tighten up.
6. Adjustment method of crumbs blocking cover (see Fig. 8)
A crumb blocking cover is installed on the support. The angle of crumb blocking cover shall be
adjusted by loosing the screw according to the operation needs, to prevent the splashing of the spark.
V. Servicing, maintenance and contact information of after-sale services
The replacement period of the grinding wheel. Use the worn grinding wheel shall affect the working
efficiency, please replace it with the new one. Before use, please inspect whether the grinding wheel
has any cracks and transformation, if any, please replace it in time.Worn grinding wheel will influence
work efficiency and please replace it with a new one promptly.
Inspect the screw of each part. Bolts connecting each part shall be inspected. The screw of each
position shall be inspected regularly so as to check whether any looseness exeists, if any, the loose
screw must be screwed down in time; if the loose screw is used, the danger shall be easily caused.
Storage after the operation. When the operation is completed, the power supply plug shall be pulled
out, and the tool shall be stored in the position which cannot be easily reached.
Dedusting .Each time after the use, the dust in every part of the machine shall be removed so as to
prevent the 、machine from damaging due to the dust enter into the motor.
The carbon brush needs to be checked and replaced regularly.
After the period of using the machine, the carbon brush shall be shorten, and when the carbon brush is
only 5 to 6mm long, please replace the carbon brush so as to prevent the machines from damage.
Replacement Procedures of the Carbon Brush (see Fig. 9):
1) Carbon brush shall be removed and inspected regularly and it shall be replaced when it reaches wear
limit.Please keep carbon brush clean and it shall slide freely in the scope of brush holder. Two carbon
brushes shall be replaced at the same time and please use fittings of original factory.
2) Remove the worn carbon brush from the rear cover of the machine with a cross screwdriver, and
Press back coil spring cover to the back cover after replacement.