Oriental motor World K Series User manual

1
Introduction
 Before using the motor
Only qualied personnel should work with the product. Use the product correctly
after thoroughly reading the section “Safety precautions.” In addition, be sure to
observe the contents described in warning, caution, and note in this manual.
The product described in this manual has been designed and manufactured to be
incorporated in general industrial equipment. Do not use for any other purpose.
Oriental Motor Co., Ltd. is not responsible for any damage caused through failure to
observe this warning.
Regulations and standards
 UL Standards, CSA Standards, CCC System
This product is recognized by UL under the UL and CSA Standards, and also certied
by CQC under the China Compulsory Certication (CCC) system.
The motor model name represents the model that conforms to the standards.
Applicable standards Certication Body / File No.
UL 1004-1, UL 1004-2, UL 1004-3 UL /
UL File No.E64197, E64199
CSA C22.2 No.100, CSA C22.2 No.77
GB/T 12350 CQC
Thermal Class: 130 (B)
1 W type and 3 W type motors: 105 (A) of the UL / CSA standards and
120 (E) of the CCC / EN standards
zStandards for accessories
Capacitor: UL File No.E83671 (CYWT2), VDE License Nos.112847
(capacitors with a rated voltage of 250 VAC, excluding
CH10FAUL, CH12FAUL, CH15FAUL and CH18FAUL),
114747 (capacitors with a rated voltage of 450 VAC, excluding
CH035BFAUL and CH045BFAUL)
Capacitor cap: UL File No.E56078 (YDTU2)
 CE Marking
This product is axed the CE Marking under the Low Voltage Directive.
zLow Voltage Directive
 Applications standards
EN 60034-1, EN 60034-5, EN 60664-1, EN 60950-1
 Installation conditions (For EN standard)
Overvoltage categoryⅡ, Pollution degree 2, ClassⅠequipment
When the machinery to which the motor is mounted requires overvoltage category
Ⅲ and pollution degree 3 specications, install the motor in a cabinet that comply
with IP54 and connect to power supply via an isolation transformer.
 Motor temperature rise tests
Temperature rise tests required by the standards are conducted for the pinion shaft
type motors in a state of attaching a gearhead.
For the 90 W reversible motors, the tests are conducted in a state of attaching a
gearhead and heat radiation plate [heat radiation plate size: 200×200 mm
(7.87×7.87 in.), thickness: 5 mm (0.20 in.), material: aluminum alloy].
The tests for the round shaft type motors are conducted in a state of attaching a heat
radiation plate. The size, thickness and material of the heat radiation plates are as
follows.
First number in motor
name Size [mm (in.)] Thickness
[mm (in.)] Material
0 80×80 (3.15×3.15)
5 (0.20) Aluminum
alloy
2 115×115 (4.53×4.53)
3 125×125 (4.92×4.92)
4 135×135 (5.31×5.31)
5 (40 W) 165×165 (6.50×6.50)
5 (60 W, 90 W Induction
motors, 150 W) 200×200 (7.87×7.87)
5 (90 W Reversible
motors) 10 (0.39)
 RoHS Directive
The products do not contain the substances exceeding the restriction values of RoHS
Directive (2011/65/EU).
Safety precautions
The precautions described below are intended to prevent danger or injury to the
user and other personnel through safe, correct use of the product. Use the product
only after carefully reading and fully understanding these instructions.
Warning
Handling the product without observing the instructions that
accompany a “Warning” symbol may result in serious injury or
death.
Caution
Handling the product without observing the instructions that
accompany a “Caution” symbol may result in injury or property
damage.
Note The items under this heading contain important handling
instructions that the user should observe to ensure safe use of
the product.
Warning
Do not use the product in explosive or corrosive environments, in the
presence of ammable gases, locations subjected to splashing water, or near
combustibles. Doing so may result in re, electric shock or injury.
Assign qualied personnel the task of installing, wiring, operating/
controlling, inspecting and troubleshooting the product. Failure to do so
may result in re, electric shock or injury.
Do not transport, install the product, perform connections or inspections
when the power is on. Always turn the power o before carrying out these
operations. Failure to do so may result in electric shock.
Turn o the power in the event the overheat protection device (thermal
protector) is triggered. Failure to do so may result in injury or damage to
equipment, since the motor will start abruptly when the overheat protection
device (thermal protector) is automatically reset.
The motor is classⅠequipment. Install the motor so as to avoid contact with
hands, or ground it to prevent the risk of electric shock.
Install the motor in an enclosure in order to prevent electric shock or injury.
Keep the input-power voltage within the specication to avoid re and
electric shock.
Connect the cables securely according to the connection diagram in order to
prevent re and electric shock.
Do not forcibly bend, pull or pinch the lead wires. Doing so may result in re
and electric shock.
Be sure to insulate the connection terminal of the capacitor. Failure to do so
may result in electric shock.
Turn o the power in the event of a power failure, or the motor will suddenly
start when the power is restored and may cause injury or damage to
equipment.
Do not touch the connection terminal of the capacitor immediately after the
power is turned o (for a period of 30 seconds). The residual voltage may
cause electric shock.
Do not disassemble or modify the motor. This may cause electric shock or
injury.
Caution
Do not use the motor beyond its specications, or electric shock, injury or
damage to equipment may result.
Do not touch the motor during operation or immediately after stopping.
The surface is hot and may cause a skin burn(s).
Do not hold the motor output shaft or motor lead wires. This may cause
injury.
Keep the area around the motor free of combustible materials in order to
prevent re or a skin burn(s).
To prevent the risk of damage to equipment, leave nothing around the
motor that would obstruct ventilation.
To prevent bodily injury, do not touch the rotating parts (output shaft,
cooling fan) of the motor during operation.
When an abnormality is noted, turn o the power immediately, or re,
electric shock or injury may occur.
The motor surface temperature may exceed 70 °C (158 °F) even
under normal operating conditions. If the operator is allowed to
approach the running motor, attach a warning label as shown in
the gure in a conspicuous position. Failure to do so may result
in a skin burn(s).
Warning label
Dispose the product correctly in accordance with laws and regulations, or
instructions of local governments.
HM-9200-12
OPERATING MANUAL
Thank you for purchasing an Oriental Motor product.
This Operating Manual describes product handling procedures and safety
precautions.
Please read it thoroughly to ensure safe operation.
Always keep the manual where it is readily available.
World K Series Lead Wire Type
Induction Motors and
Reversible Motors

2
Preparation
 Checking the product
Verify that the items listed below are included. Report any missing or damaged items
to the branch or sales oce from which you purchased the product.
Motor..........................................1 unit
Capacitor ...................................1 piece (only for single-phase motors)
Capacitor cap ..........................1 piece (only for single-phase motors)
Operating manual .................1 copy (this document)
 Checking the model name
Check the model number against the number indicated on the product.
The list above shows pinion shaft motors. For the round shaft motor, “GN” and “GE”
in the model and motor model are replaced by “A”.
Refer to p.3 for the connection diagram.
zInduction motors
Single-phase type (Connection diagram: ①)
Output power Model Motor model Capacitor model
1 W
0IK1GN-AW2J 0IK1GN-AW2 CH15FAUL
0IK1GN-AW3U 0IK1GN-AW3 CH10FAUL
0IK1GN-CW2J 0IK1GN-CW2 CH035BFAUL
3 W
0IK3GN-BW2J 0IK3GN-BW2 CH18FAUL
0IK3GN-BW3U 0IK3GN-BW3 CH15FAUL
0IK3GN-DW2J 0IK3GN-DW2 CH045BFAUL
6 W
2IK6GN-AW2J 2IK6GN-AW2 CH35FAUL2
2IK6GN-AW2U CH25FAUL2
2IK6GN-CW2J 2IK6GN-CW2 CH08BFAUL
2IK6GN-CW2E CH06BFAUL
15 W
3IK15GN-AW2J 3IK15GN-AW2 CH55FAUL2
3IK15GN-AW2U CH45FAUL2
3IK15GN-CW2J 3IK15GN-CW2 CH15BFAUL
3IK15GN-CW2E CH10BFAUL
25 W
4IK25GN-AW2J 4IK25GN-AW2 CH80CFAUL2
4IK25GN-AW2U CH65CFAUL2
4IK25GN-CW2J 4IK25GN-CW2 CH20BFAUL
4IK25GN-CW2E CH15BFAUL
40 W
5IK40GN-AW2J 5IK40GN-AW2 CH110CFAUL2
5IK40GN-AW2U CH90CFAUL2
5IK40GN-CW2J 5IK40GN-CW2 CH30BFAUL
5IK40GN-CW2E CH23BFAUL
60 W
5IK60GE-AW2J 5IK60GE-AW2 CH200CFAUL2
5IK60GE-AW2U CH180CFAUL2
5IK60GE-CW2J 5IK60GE-CW2 CH50BFAUL
5IK60GE-CW2E CH40BFAUL
90 W
5IK90GE-AW2J 5IK90GE-AW2 CH280CFAUL2
5IK90GE-AW2U CH200CFAUL2
5IK90GE-CW2J 5IK90GE-CW2 CH70BFAUL
5IK90GE-CW2E CH60BFAUL
Single-phase, 2-pole, high-speed type (Connection diagram: ②)
Models listed in the table below are the round shaft type motors.
Output power Model Motor model Capacitor model
40 W
4IK40A-BW2J 4IK40A-BW2 CH90CFAUL2
4IK40A-BW2U CH75CFAUL2
4IK40A-DW2J 4IK40A-DW2 CH23BFAUL
4IK40A-DW3E 4IK40A-DW3 CH18BFAUL
60 W
4IK60A-BW2J 4IK60A-BW2 CH140CFAUL2
4IK60A-BW2U CH100CFAUL2
4IK60A-DW2J 4IK60A-DW2 CH30BFAUL
4IK60A-DW3E 4IK60A-DW3 CH25BFAUL
5IK60A-BW2J 5IK60A-BW2 CH160CFAUL2
5IK60A-BW2U CH140CFAUL2
5IK60A-DW2J 5IK60A-DW2 CH40BFAUL
5IK60A-DW3E 5IK60A-DW3 CH30BFAUL
90 W
5IK90A-BW2J 5IK90A-BW2 CH280CFAUL2
5IK90A-BW2U CH250CFAUL2
5IK90A-DW2J 5IK90A-DW2 CH70BFAUL
5IK90A-DW3E 5IK90A-DW3 CH60BFAUL
Output power Model Motor model Capacitor model
150 W
5IK150A-BW2J 5IK150A-BW2 CH400CFAUL2
5IK150A-BW2U CH300CFAUL2
5IK150A-DW2J 5IK150A-DW2 CH100BFAUL
5IK150A-DW3E 5IK150A-DW3 CH80BFAUL
Three-phase type (Connection diagram: ③)
Output power Model Motor model
6 W 2IK6GN-SW2 2IK6GN-SW2
15 W 3IK15GN-SW2 3IK15GN-SW2
25 W 4IK25GN-SW2 4IK25GN-SW2
40 W 5IK40GN-SW2 5IK40GN-SW2
60 W 5IK60GE-SW2 5IK60GE-SW2
90 W 5IK90GE-SW2 5IK90GE-SW2
Three-phase, 2-pole, high-speed type (Connection diagram: ③)
Models listed in the table below are the round shaft type motors.
Output power Model Motor model
60 W 5IK60A-TW2 5IK60A-TW2
90 W 5IK90A-TW2 5IK90A-TW2
150 W 5IK150A-TW2 5IK150A-TW2
zReversible motors
Single-phase type (Connection diagram: ④)
Output power Model Motor model Capacitor model
1 W
0RK1GN-AW2J 0RK1GN-AW2 CH18FAUL
0RK1GN-AW3U 0RK1GN-AW3 CH12FAUL
0RK1GN-CW2J 0RK1GN-CW2 CH045BFAUL
6 W
2RK6GN-AW2J 2RK6GN-AW2 CH45FAUL2
2RK6GN-AW2U CH35FAUL2
2RK6GN-CW2J 2RK6GN-CW2 CH10BFAUL
2RK6GN-CW2E CH08BFAUL
15 W
3RK15GN-AW2J 3RK15GN-AW2 CH75CFAUL2
3RK15GN-AW2U CH60CFAUL2
3RK15GN-CW2J 3RK15GN-CW2 CH18BFAUL
3RK15GN-CW2E CH15BFAUL
25 W
4RK25GN-AW2J 4RK25GN-AW2 CH100CFAUL2
4RK25GN-AW2U CH80CFAUL2
4RK25GN-CW2J 4RK25GN-CW2 CH30BFAUL
4RK25GN-CW2E CH25BFAUL
40 W
5RK40GN-AW2J 5RK40GN-AW2 CH160CFAUL2
5RK40GN-AW2U CH120CFAUL2
5RK40GN-CW2J 5RK40GN-CW2 CH40BFAUL
5RK40GN-CW2E CH35BFAUL
60 W
5RK60GE-AW2J 5RK60GE-AW2 CH250CFAUL2
5RK60GE-AW2U CH200CFAUL2
5RK60GE-CW2J 5RK60GE-CW2 CH60BFAUL
5RK60GE-CW2E CH50BFAUL
90 W
5RK90GE-AW2J 5RK90GE-AW2 CH350CFAUL2
5RK90GE-AW2U CH300CFAUL2
5RK90GE-CW2J 5RK90GE-CW2 CH80BFAUL
5RK90GE-CW3E 5RK90GE-CW3 CH70BFAUL
Installation
 Location for installation
The motor is designed and manufactured for installation in equipment.
Install it in a well-ventilated location that provides easy access for inspection.
The location must also satisfy the following conditions:
Inside an enclosure that is installed indoors (provide vent holes)
Operating ambient temperature
−10 to +40 °C (+14 to +104 °F) (non-freezing)
100 V/200 V (Excluding the 1 W and 3 W types) : −10 to +50 °C (+14 to +122 °F)
(non-freezing)
Operating ambient humidity 85%, maximum (non-condensing)
Area that is free from an explosive atmosphere or toxic gas (such as sulfuric gas) or
liquid
Area not exposed to direct sun
Area free of excessive amount dust, iron particles or the like
Area not subject to splashing water (storms, water droplets), oil (oil droplets) or
other liquids

3
Area free of excessive salt
Area not subject to continuous vibration or excessive shocks
Area free of excessive electromagnetic noise (from welders, power machinery, etc.)
Area free of radioactive materials, magnetic elds or vacuum
1000 m (3300 ft.) or less above sea level
 How to install the motor
zRound shaft type
Drill holes on the mounting plate and x the motor on the plate using screws (not
supplied). Do not leave a gap between the motor and mounting plate.
First number of
motor model
Nominal
diameter of
screw
Tightening
torque
[N·m (lb-in)]
Motor
Mounting plate
0 M3 1.0 (8.8)
2 M4 2.0 (17.7)
3M5 2.5 (22)
4
5 M6 3.0 (26)
Note Do not insert the motor into the mounting hole at an angle or force it
in, as this may scratch the ange pilot section and damage the motor.
zPinion shaft type
Assembling
Keep the pilot sections of the motor and gearhead
in parallel, and assemble the gearhead with
the motor while slowly rotating it clockwise/
counterclockwise. At this time, note so that the
pinion of the motor output shaft does not hit
the side panel or gears of the gearhead strongly.
Assemble the gearhead to the motor in a condition
where the motor output shaft is in an upward
direction.
Pinion of
the motor
output shaft
Pilot
section
Side
panel
Installing
Drill holes on the mounting plate and x
the motor and gearhead on the plate using
screws supplied with the gearhead. Do
not leave a gap between the motor and
mounting plate.
Refer to the Oriental Motor Website for the
screw specications.
Motor
Screws
(supplied with the motor)
Gearhead
Mounting plate
Nuts
Washers
Note
Use the gearhead with pinion shaft which is identical with one of
motor.
Do not forcibly assemble the motor and gearhead. Also, prevent
metal objects or foreign substances from entering in the gearhead.
The pinion of the motor output shaft or gear may be damaged,
resulting in noise or shorter service life.
1 W type and 3 W type motors
Remove only the black cap before installation.
If the white tube is removed, grease in the
gearhead may penetrate into the inside of
the motor, resulting in damage to the motor.
Do not remove the
grease seal tube (white)
Remove the shaft cap
(black)
zMotor with cooling fan
When installing a motor with cooling fan onto a device, leave 10 mm (0.39 in.) or
more behind the fan cover or open a ventilation hole so that the cooling inlet on the
back of the motor cover is not blocked.
 Mounting the capacitor (only for single-phase motors)
Before mounting the provided capacitor, check that
the capacitor’s capacitance matches that stated on the
motor’s name plate. Mount the capacitor securely by
using M4 screws (not provided).
Ø4.3 mm
(0.17 in.)
Note
Do not let the screw fastening torque exceed 1 N·m (8.8 lb-in) to
prevent damage to the mounting foot.
Mount capacitor at least 10 cm (3.94 in.) away from the motor. If it is
located closer, the life of the capacitor will be shortened.
Connection
Insulate all the wire connections, such as the connection between the motor and the
capacitor connection. Ground the motor using a Protective Earth Terminal.
 Rotating direction of the gearhead output shaft
The rotating direction of the gearhead output shaft may be opposite that of the
motor shaft, depending on the gear ratio. Refer to the Oriental Motor Website for
details.
 Connection diagram
Check the motor model name used before connecting.
The direction of motor rotation is as viewed from the side of the motor’s output
shaft. The motor rotates in a clockwise (CW) and counterclockwise (CCW) direction.
Colors shown in the connection diagram indicate the colors of lead wires.
zInduction motors
Single-phase type (Connection diagram: ①)
CW
Grounding
Red
Black
White
<Clockwise>
N
L
power supply
CCW
L
N
<Counterclockwise>
Grounding
power supply Red
Black
White
Single-phase, 2-pole, high-speed type (Connection diagram: ②)
CW
Grounding
<Clockwise>
N
L
power supply Red
Black
White
Blue
Gray
L
N
CCW
<Counterclockwise>
power supply Grounding
Red
Black
White
Blue
Gray
Three-phase type (Connection diagram: ③)
The motor rotates in the clockwise direction (CW) if connected
as the connection diagram below. To change the direction of
rotation, change any two connections between R, S and T.
Red
Black
White
L1 (R)
L2 (S)
L3 (T)
power supply R0C0
R0C0
R0C0
Grounding
CW
zReversible motors
Single-phase type (Connection diagram: ④)
L
N
Grounding
power supply Red
Black
White
SW CCW
CW
R0C0
R0C0
CW
The motor rotates in the clockwise direction if the switch(SW) is
connected to the CW side, and it rotates in the counterclockwise
direction if connected to the CCW side.

Unauthorized reproduction or copying of all or part of this manual is prohibited.
Oriental Motor shall not be liable whatsoever for any problems relating to
industrial property rights arising from use of any information, circuit, equipment
or device provided or referenced in this manual.
Characteristics, specications and dimensions are subject to change without
notice.
While we make every eort to oer accurate information in the manual, we
welcome your input. Should you nd unclear descriptions, errors or omissions,
please contact the nearest oce.
 is a registered trademark or trademark of Oriental Motor Co.,
Ltd., in Japan and other countries.
© Copyright ORIENTAL MOTOR CO., LTD. 2011
Published in January 2018
Technical Support Tel:[phone]
8:30 A.M. to 5:00 P.M., P.S.T. (M-F)
7:30 A.M. to 5:00 P.M., C.S.T. (M-F)
www.orientalmotor.com
Schiessstraße 44, 40549 Düsseldorf, Germany
Technical Support Tel:[phone]
www.orientalmotor.de
Tel:[phone]
www.oriental-motor.co.uk
Tel:[phone]
www.orientalmotor.fr
Tel:[phone]
www.orientalmotor.it
Tel:[phone]
www.orientalmotor.com.br
• Please contact your nearest Oriental Motor oce for further information.
4-8-1Higashiueno,Taito-ku,Tokyo 110-8536
Japan
Tel:[phone]
www.orientalmotor.co.jp
Tel:[phone]
www.orientalmotor.com.tw
Singapore
Tel:[phone]
www.orientalmotor.com.sg
Tel:[phone]
www.orientalmotor.com.my
Korea
Tel:[phone]
www.inaom.co.kr
Tel:[phone]
www.orientalmotor.co.th
Tel:[phone]
www.orientalmotor.com.cn
Tel:[phone]
www.orientalmotor.co.in
Hong Kong Branch
Tel:[phone]
4
zFor protection of contact (switch)
If the switch is used for starting/stopping the motor or switching the rotation direction,
connect the CR circuit for surge suppression in order to protect the contacts.
R0C0R0=5 to 200 
C0=0.1 to 0.2 µF 250 VAC
It is provided as an accessory (sold separately). Model: EPCR1201-2
 Lead Wire for Power Supply
For power supply, use a thicker lead wire than the motor lead wire.
Motors of 1 W and 3 W: AWG24 (0.2 mm2)
Motors of 6W or larger: AWG20 (0.5 mm2)
 Capacitor connection (only for single-phase motors)
When crimp terminals are used, use the FASTON terminals
187 Series (TE Connectivity).
Use the supplied capacitor cap to insulate the capacitor
terminal connection.
Capacitor
187 series
Capacitor
cap
The capacitor has four
terminals that are internally
connected as shown in the
gure.
<Capacitor internal
wiring diagram>
187 series
Note For lead wire connection, use one lead wire for each individual
terminal.
 Connecting Protective Earth Terminal
Ground the motor using the motor’s Protective Earth Terminal .
Applicable crimp terminal:
Insulated round crimp terminal
Terminal screw size: M4
Tightening torque:
1.0 to 1.3 N·m (8.8 to 11.5 lb-in)
Applicable minimum lead wire size:
AWG18 (0.75 mm2) or thicker
Ø4.1 (0.16) or more
[ Unit: mm (in.) ]
4.8 (0.19) or less
9.5 (0.37)
or less
Note Be sure to use the screw for grounding attached on the product.
Operation
The motor rotates when the power supply is turned on.
For protection against electric shock, do not turn on the power supply until the
wiring is complete.
Note
Make sure that the motor case temperature does not exceed
90 °C (194 °F) when operating the motor. Operation exceeding case
temperature 90 °C (194 °F) may signicantly deteriorate the coils
and ball bearings of the motor and shorten the motor's life span.
Motor case temperature can be measured by xing a thermometer
on the motor surface. It can also be measured using thermo tape
or a thermocouple.
To change rotation direction of the single-phase induction motor,
wait until the motor completely stops. Otherwise its direction may
not change or may take much time to change.
Do not perform an operation switching the motor rotation
direction instantaneously with three-phase motors. Doing so may
cause damage to the motor and gearhead.
Single-phase motors use a capacitor and keep it connected even
after rotation of the motor has started.
Time rating
zInduction motors
Induction motors have a continuous rating.
zReversible motors
Reversible motors have a 30 minutes rating. “30 min” is indicated on the nameplate.
Locked rotor burnout protection
This motor is equipped with one of the two features listed below to prevent the
motor from burning out as a result of abnormal heating which may be caused by
misapplication.
 Thermal protection
“TP” is stamped on the motor nameplate. The motor has an “auto reset” type
thermal protector built into its motor coil. When the motor reaches a predetermined
temperature, the internal thermal protector is activated and the motor is stopped.
Always turn the power o before performing inspections.
Thermal protector activation range:
Power is turned o at 130±5 °C (266±9 °F)
Power is turned back on at 82±15 °C (180±27 °F)
90±15 °C (194±27 °F) for 3IK15GN-SW2, 3IK15A-SW2
 Impedance protection
“ZP” is stamped on the motor nameplate. The motor has higher coil impedance.
When the motor goes into locked rotor condition due to a malfunction, coil
impedance rises, suppressing input power to the motor and protecting the motor
coil from burnout.
Troubleshooting
When the motor cannot be operated correctly, refer to the contents provided in this
section and take appropriate action. If the problem persists, contact your nearest
oce.
Phenomena Check items
Motor does not rotate or
rotates slowly.
Check the power supply voltage.
Connect the power supply and the motor orrectly.
With a single-phase motor, connect the supplied
capacitor correctly.
If terminal blocks or crimp terminals are used,
check them for poor connection.
Keep the load at or below the allowable value.
Motor sometimes rotates
and stops.
Connect the power supply and the motor
correctly.
With a single-phase motor, connect the supplied
capacitor correctly.
If terminal blocks or crimp terminals are used,
check them for poor connection.
The motor rotates in the
direction opposite to the
specied direction.
Connect correctly by referring to “Connection
diagram.”
With a single-phase motor, connect the supplied
capacitor correctly.
The rotating direction of the motor output shaft
may be dierent from that of the gearhead
output shaft depending on the gear ratio of the
gearhead. Refer to the Oriental Motor Website for
details.
The rotating direction is indicated as viewed
from the motor output shaft. Check the reference
direction.
Motor temperature
abnormally high [Motor
case temperature exceeds
90 °C (194 °F)]
Check the power supply voltage.
With a single-phase motor, connect the supplied
capacitor correctly.
Review the ventilation condition.
Noisy operation
Assemble the motor and gearhead correctly.
Assemble a gearhead of the same pinion type as
the motor.