Tsubaki GMTK U User manual

TSUBAKI E&M Co.
Instruction Manual
● Thank you for purchasing Tsubaki’s TERVO Reducer.This is a high-quality
sophisticated unit,which should be handled only by experienced engineers.
●To ensure you obtain optimum life from the unit,read and understand the entire
contents of this manual prior to operation.
●This manual should be considered an essential part of the reducer and remain
with the reducer when redistributed.
●To ensure safe operation, this manual must be accessible to every user.
Ｋ０１．００TSE-4
2019.07.08
TSUBAKI TERVO
REDUCER for SERVO MOTOR
●Thank you for purchasing Tsubaki’s TERVO Reducer.This is a high-quality
sophisticated unit,which should be handled only by experienced engineers.
●To ensure you obtain optimum life from the unit,read and understand the entire
contents of this manual prior to operation.
●This manual should be considered an essential part of the reducer and remain
with the reducer when redistributed.
●
To ensure safe operation, this manual must be accessible to every user.
Instruction Manual
TSUBAKI
MOTO CHAIN
Co.

Table of Contents
Safety Precautions
1. Upon Receiving Your Reducer
1-1. Varifying Your Order
1- . Inquiries
1-3. How to Read the Nameplate
. Transportation
3. Motor installation to reducer
3-1. Keyed Motor Shaft (Sleeve Coupling Type)
3- . Round Motor Shaft (Clamp Type Input Hollow Shaft)
3-3. Keyed Motor Shaft Installation to Clamp Type Input Hollow Shaft
4. Installation
4-1. Ambient Conditions
4- . General Installation
4-4. Connecting to Equipment
5. Lubrication
5-1. GMTK and HMTK
5- . TMMK, SW(J)MK and EW(J)MK
6. Precautions for Daily Inspection and Maintenance
6-1. Precautions for Maintenance
6- . Maintenance
6-3. Abnormal Conditions
6-4. Oil Seals
7. Assembly and Disassembly
8. Storage
9. Others
10. Disposal
11. Trouble Shooting
1 . Warranty
1 -1. Warranty Period without Charge
1 - . Warranty Coverage
1 -3. Warranty with Charge
13. Disclaimer

<Safety Precautions>
Safety precautions in this manual are classified into two categories: WARNING and CAUTION. These
categories are defined as follows.
WARNING Death or serious injury may result from misusing the product
without following the instructions under this label.
CCC CAUTION
Minor to moderate injury and damage to the product may result
from misusing the product without following the instructions
under this label.
Note that there is a possibility that an item listed under CAUTION may result in serious injuries.

WARNING
<General>
Transporting, installing, wiring, maintaining or inspecting must be carried out by skilled and
professional engineers. Otherwise, explosion, electrical shock, injury or damage to the unit
may result.
When the reducer is used for a passenger vehicle, install a suitable protection device on the
vehicle. This can prevent accidents and equipment damage.
When the reducer is used for an elevator, install a safety device on the elevator in order to
protect it from falling over. Otherwise, accidents resulting in death, injury or equipment
damage may occur.
Only TSUBAKIMOTO CHAIN egineers should overhaul the reducer, for it requires specific
skills.
<Transportation>
Never stand under the product when it is lifted for transportation. Otherwise, the product
may fall and cause major accidents resulting in death or injury.
<Operation>
Never stand close to the rotating parts (ie. shafts) to avoid possible injuries.
<Daily Inspection and Maintenance>
Avoid contact with rotating parts such as the shaft while carrying out maintenance or
inspection. Rotating parts can catch body parts and cause injuries.
Do not unplug the pressure vent during operation because hot oil may splash and cause burn
injuries.
Verify that the drive and driven shafts are completely stopped prior to inspecting gear teeth.
Failure to do so may result in accidents.
Do not overload the reducer. Doing so may damage the unit and shorten gear life.

CAUTION
<General>
Do not use the reducer beyond the capacity specified on the nameplate or specification sheet.
Otherwise, explosion, electrical shock, injury or equipment damage may result.
Do not insert fingers or other objects into the reducer opening. Otherwise, electrical shock,
injury, fire or equipment damage may result.
Do not use a damaged reducer as this may cause fire or injury.
Do not remove the nameplate.
Problems caused by your attempts to remodel the product are not covered by our warranty, and
are therefore, not held responsible by TSUBAKIMOTO CHAIN.
<Upon Receiving Your Reducer>
Be sure the product delivered matches your order. This will prevent you from accidents, injuries
or equipment damage caused by installing the wrong unit.
Be sure the package is in its upright position prior to opening.
< Transportation >
When transporting your equipment, take caution so that it does not fall or overturn. When
using lifting rings, make sure they are securely fastened. After the reducer is installed to
another equipment however, do not lift the entire system using these rings. Otherwise,
injuries and equipment damage may result from defected lifting rings.
Be sure the weight of the reducer, based on the diagram and catalog provided, does not exceed
the maximum rate assigned to the lifting device. Otherwise, the device may break and damage
the equipment.
If the reducer is packed in a wooden case, it may not be appropriate for a fork lift
transportation. Secure the package with belt straps if fork lifting is necessary.
<Installation and Connection>
Do not place flammables in the vicinity of the reducer. Otherwise, fire or other such accidents
may occur.
Never place any obstacles that block the ventilation around the reducer. Overheating can cause
burns, fire and other accidents.
Never climb or hang from the reducer to avoid possible injury.
Do not touch the shaft key with bare hands to avoid possible injury.
When the reducer is used for a food processing machine, use an oil pan to prevent oil leaks
caused by equipment failure or end of life. Lubricant oil can damage food or other such
products and your equipment.

<Connecting to Equiment>
When you connect the reducer to your equipment, pay attention to centering, belt tension, and
pully parallelism. Be sure to connect accurately for direct coupling.When using a belt-drive,
make sure to tighten the belt to proper tension. Before operation, verify that the pulley and
coupling bolts are securely fastened. Otherwise, injury or damage to the equipment may result
from broken pieces of the equipment.
Install covers to prevent access to any rotating parts.
Before connecting to a machine, check the direction of the reducer rotation. Incorrect direction
of rotation may cause injuries or equipment damage.
<Operation>
If the reducer is run independently, remove the temporary key attached to the output shaft.
Make sure the motor is completely stopped before reversing the direction of rotaion. Failure to
do so may result in damaged reducer or equipment.
The surface temperature of the reducer increases considerably during operation. Do not touch
the reducer so as to prevent burn injuries.
Stop operation immediately upon suspecting any trouble. This can prevent possible electrical
shock, injury or fire.
Do not exceed the rated load. Otherwise, injury or equipment damage may result.
Do not loosen oil plugs or pressure vents during operation. Otherwise, hot oil may splash and
cause burn injuries.
< Daily Inspection and Maintenance >
Follow the lubrication instructions provided in this manual. Not using the recommended
lubricants may cause physical damage to the reducer, and reduce its life and capacity.
Diagnose a problem based on the instructions provided in this manual. Never resume an
operation until the cause of the problem is investigated.
<Assembly and Disassembly>
Only skilled engineers should repair, disassemble or assemble the reducer. Otherwise,
electrical shock, injury or fire may occur.
< Scrapping >
Dispose the reducer and lubricant as general waste.

【 1 】Upon Receiving Your Reducer
1-1. Varifying your order
Be sure to verify the following before using the product. Should you find any problems with
the unit delivered, contact your distributer or TSUBAKIMOTO CHAIN.
(1) The model number and gear ratio on the nameplate correspond to your request.
( ) No damage has been done to the poduct during transportation.
(3) Bolts and screws are snugly in place.
1- . Contacting TSUBAKIMOTO CHAIN
When you are reporting an incorrect model number or gear ratio on the nameplate, or if you
are ordering replacement parts or another product, contact your distributor or
TSUBAKIMOTO CHAIN with the following information.
(1) Manufacturing or test number of the said product.
( ) Model number and type.
(3) Drawing number
CAUTION
Be sure the product delivered matches your order. This will prevent you from accidents,
injuries or equipment damage caused by installing the wrong unit.
Be sure the package is in its upright position prior to opening.

1-3. How to read the nameplate
Model No. of TERVO
ＳＷＭＫ ８０ Ｔ ３０ LF □□□□ － Ｋ
① ② ③ ④ ⑤ ⑥ ⑦
①Type ＨＭＴＫ Hypoid Gerahead
ＧＭＴＫ Helical Gearhead
SW(J)MK
EW(J)MK Worm Gearhead
ＴＭＭＫ
②Frame ＨＭＴＫ 0220 0222 0228 0230 0428 0430 0435 0438 0735 0738
0742 0745 1542 1545 1550 1555 2242 2245 2250 2255
ＧＭＴＫ 0218 0224 0228 0424 0428 0438 1538 1542 1550 2242
2250 2263
SW(J)MK 35 42 56 70 80 100 (125)
EW(J)MK 50 63 70 80 100 (125)
ＴＭＭＫ 10 13 16
③Mounting/ ＨＭＴＫ Ｌ：Foot Ｕ：Face Ｈ：Hollow Output
Installation ＧＭＴＫ Ｌ：Foot Ｕ：Face Ｆ：Flange
SW(J)MK Ｔ：Output Horizontal, Input Top Ｂ：Output Horizontal, Input Bottom
EW(J)MK Ｖ：Vertical Ｅ：Free
ＴＭＭＫ
④Gear Ratio Example ３０
⑤Shaft Arrangement
ＨＭＴＫ Ｓ Ｔ
SW(J)MK ＬＦ ＲＦ ＤＦ
EW(J)MK Ｌ Ｒ ＬＲ ＬＵ ＬＤ ＬＵＤ ＲＵ ＲＤ ＲＵＤ
ＴＭＭＫ Ａ Ｂ Ｃ
⑥Mounting Code □□□□ Already registered the code on motor manufacturer, model, etc..
⑦Option ＨＭＴＫ Ｋ：With POWER-LOCK
SW(J)MK Ｋ：With POWER-LOCK
ＴＢ＊＊：Taper Bushing Note：＊＊ shows Shaft Diameter
【 】Transportation
WARNING
<Transportation>
Never stand under the product when it is being lifted for transportation. Otherwise, the
product may fall and cause major accidents resulting in death or injury.
CAUTION
< Transportation >
When transporting your equipment, take caution so that it does not fall over. When using
lifting rings, make sure they are securely fastened to the equipment. After the reducer is
installed to another equipment, however, do not lift the entire system using these rings.
Otherwise, injuries and equipment damage may occur from defected lifting rings.

Be sure the weight of the reducer, based on the nameplate, drawing and catalog provided,
does not exceed the maximum rate assigned to the rings. Otherwise, the device may break
and damage the equipment.
If the reducer is packed in a wooden case, it may not be appropriate for a fork lift
transportation. Secure the package with belt straps if fork lifting is necessary.
When transporting the reducer, insert eyebolts in the casing tap holes and suspend with care.
【 3 】Motor Installation
CAUTION
Take caution so that the oil seal is not damaged from preliminary installation.
Make sure to accurately center the motor shaft and reducer input shaft.
Make sure to grease keyed motor shafts.
Make sure to wipe off grease from round motor shafts.
Do not hit the reducer and the motor with a tool such as a hammer, or insert the motor by
tightening the bolts. Excessive force applied to the reducer and the motor may cause damage
to the bearings or produce a loud noise.
Be sure to tighten the bolts upon confirming that the motor is correctly installed.
3-1. Keyed Motor Shafts (Sleeve Coupling Type)
(1) Install the reducer so that the motor mounting surface faces up.
( ) Wipe off dust, rust, and rust prevention oil from the motor shaft and reducer.
(3) Grease the motor shaft to prevent burns.
(4) Align the motor output shaft key with the reducer input hollow shaft keyway accurately.
(5) Carefully insert the motor output shaft into the reducer input hollow shaft.
(6) After verifying that the motor and reducer flange grooves are completely intact, secure the reducer
onto the motor flange by tightening appropriate bolts to their applicable torque.
a. Greasing
The reducer input hollow shaft bore is factory greased to prevent burns. Apply some of this grease
to the motor shaft, and then mount the motor. If reassembling, use a molybdenum grease to
prevent burns.
b. Installing a Key Sleeve Coupling
Slide a Key Sleeve coupling onto the motor shaft and secure by tightening the setscrews with a
hexagonal wrench. Then, mount the motor to the reducer.

3- . Round Motor Shafts (Clamp Type Input Shafts)
(1) Install the reducer so that the motor mounting surface faces up.
( ) Wipe off dust, rust, and rust prevention oil from the motor shaft and reducer.
(3) Remove the flange setscrew, and then turn the input hollow shaft to align the bolt heads with the
positions of the setscrew. Using an L spanner, verify that the set bolts are loosened.
(4) Carefully and smoothly insert the motor shaft into the input hollow shaft. Take caution so that you
do not insert the motor shaft at an angle.
(5) After the key has been snugly fitted into the keyway grooves, secure the reducer onto the motor
flange by tightening appropriate bolts to their applicable tightening torque.
(6) Using a torque wrench, tighten the clamp bolts set on the input shaft to the torque specified in
tables 3-1 and 3- .
(7) Tighten the setscrew to complete the motor installation.
Table 3-1 Tightening Torque for ＧＭＴＫ／ＨＭＴＫ Clamp Set Bolts
ＧＭＴＫ Size ＨＭＴＫ Size
Set Bolt Size
Tightening Torque
0218U/L 0224U/L 0228U/L
0424U/L 0428U/L 0438U/L
0230Ｈ 0228Ｕ
0430Ｈ 0428Ｕ 0435Ｈ 0438Ｕ
Ｍ4 4.1N･m （0.41kgf･m）
0728U/L 0738U/L 0742F/L
1538U/L 1542F/L 1550F/L
0735Ｈ 0738Ｕ 0745Ｈ 0742Ｕ
1545Ｈ 1542Ｕ 1555Ｈ 1550Ｕ
Ｍ5 8.5N･m （0.85 kgf･m）
2242F/L 2250F/L 2263F/L 2245Ｈ 2242Ｕ 2255Ｈ 2250Ｕ Ｍ6 14N･m （1.4 kgf･m）

Table 3- -1 SW(J)MK/EW(J)MK/TMMK Clamp Set Bolt Size
Worm Model No.
Mounting Code
E4□C G2□C/G5□C J4□C K2□C/K3□C/K4□C L1□C
Groove
Circumference
φ50G7 φ70G7 φ95G7 φ110G7 φ114.3G7/H7
Mounting Pitch
PCD70 PCD90 PCD115 PCD145 PCD200
TMMK10
M3 － － － －
TMMK13/SWJMK35/EWJMK35
M3 M3 － － －
TMMK16/SWJMK42/EWJMK42
M3 M3 － － －
SWMK56
M3 M4 M4 － －
SWJMK50/EWJMK50
－ M4 M4 － －
SWJMK63/EWJMK63/SWJMK70
－ M4 M4 M6 M6
EWJMK70
－ － M4 M6 M6
SWMK80/EWMK80
－ － － M6 M6
SWMK100/EWMK100
－ － － － M6
Table 3- - .SW(J)MK/EW(J)MK/TMMK Clamp Set Bolt Tightening Torque
Clamp Set Bolt Size
Tightening Torque
Ｍ3 1.9N･m （0.19kgf･m）
Ｍ4 3.8N･m （0.39kgf･m）
Ｍ6 1 N･m （1. kgf･m）
3-3. Installing a Clamp Type Input Hollow Shaft with Keyed Motor
Like the round shafts, keyed motor shafts can be used as a clamp type by removing the key.
However, you must align the slit in the clamp portion with the keyway in the servo motor shaft as in
the diagram below.
Keyway
Slit

【 4 】Installation
WARNING
Do not place any flammables in the vicinity of TERVO Reducer. Otherwise, fire may occur.
Never place obstacles that block the ventilation around the reducer. The unit may overheat
and cause burn injuries, fires and other accidents.
Do not climb or hang from the reducer. Doing so may result in accidents
Do not touch the reducer shaft and keyway with bare hands. Failure to do so may cause
injuries.
Provide oil pans for food manufacturing machines to prevent oil from leaking into food
products, should the machines experience a mechanical failure or end of life cycle.
4-1. Installation Environment
1. Ambient Temperature: 0~40 ﾟC
. Humidity: 85% or greater
3. Altitude: Below 1000m
4. Atmosphere: Free of flammables, explosives and vapor. A well-ventilated space with no dust.
4- . Installation
Fitting insufficient lengths of mounting bolts or tightening them with excessive torque may
damage the tap holes. On the other hand, if the torque is too small, the entire unit assembly may
loosen due to the shocks experienced from repeated starting and stopping.
Screw
Size
Hexagonal Bolt Hexagonal Head Cap Screw
N・m ｛Reference：kgf･m｝ Ｎ・m ｛References：kgf･m｝
Ｍ８ 9.8～10.3 ｛1.0～1.05｝ 9.8～19.6 ｛1.0～.0｝
Ｍ１０ 19.6～0.6 ｛.0～.1｝ 19.6～39. ｛.0～4.0｝
Ｍ１２ 34.3～36.3 ｛3.5～3.7｝ 34.3～68.6 ｛3.5～7.0｝
Ｍ１６ 84.3～88. ｛8.6～9.0｝ 84.3～168.6 ｛8.6～17. ｝
Note) When mounting a flange to a GMTK Face Mount Type (U), be sure to use the bolts and conical
spring washer provided.
4-3.Connecting to an Equipment
CAUTION
●When loading the reducer, pay attention to pulley parallelism, belt tension and concentricity.
If directly connecting to your equipment, take caution in the connection accuracy. If using a
belt, be sure to adjust to appropriate tension. Before operation, verify that the pulley and
coupling bolts are securely fastened. Otherwise, injury or damage to the equipment may result
from broken pieces of the equipment.
●Use covers to prevent access to rotating parts. Failure to do so may result in injuries.
●Verify the direction of motor rotation prior to equipment connection. Incorrect direction of
motor rotation may lead to accidents.

(1) Foot Mount and Face Mount Types
Hitting a sprocket or gear during installation may damage the output shaft bearing. For phase
adjustments, try Tsubaki Power-Locks. Center belt and chain accurately, and make sure any
overhang load does not exceed the rated value.
a. Foot Mount Type
•Installation must be carried out on a level surface that is strong enough to withstand
vibrations. Verify that the reducer mounting-surface is clean. Then, using the attached
four bolts, secure the reducer to the installation surface.
•In the case of using a coupling, be sure to align the shafts accurately. Misalignments may
cause loud noise and vibrations and may also reduce the lives of bearing, gear, and shaft.
•Chains and belts should also be centered accurately and pulled to appropriate tension so
that excessive overhang load will not apply to the output shaft.
b. Face Mount Type
•Use the case tap holes to directly mount the reducer to your equipment.
•In the case of using a coupling, be sure to accurately align the shafts. Misalignments may
cause loud noise and vibrations and may also reduce the lives of bearing, gear, and shaft.
•Chains and belts should also be centered accurately and pulled to appropriate tension so
that excessive overhang load will not apply to the output shaft.
( ) Installing and Removing a Hollow Shaft
a. Mounting to Driven Shaft
•Grease the driven shaft and then insert into hollow shaft.
•When the shaft does not slide in smoothly, lightly tap with a soft hammer. Take caution so
that you do not damage the casing and oil seal during this procedure. Using the below jigs
may simplify the procedure.
•Use a parallel key (JIS B1301-1976). Using an angled key or that with a head will affect the
shaft alignment and reduce equipment life or cause physical damage.

(3) Mounting to Driven Shaft
Be sure to mount the reducer to driven shaft.
(1) Mounting Methods

(4) Torque Arm Rotation Prevention
Install a torque arm after determining the appropriate reducer mounting method
(position). Pay attention so that the reducer and the driven shaft do not rotate together
during this process. Provide enough leeway between the reducer and the driven shaft in
the rotation prevention portion of the arm, so that they will not rotate together. Do not fix
the torque arm with a rotation prevention bolt.
（5）emoving from a Driven Shaft
Remove driven shaft from hollow shaft, without applying too much force between the
casing and the hollow shaft. Using the jigs below will allow a smooth removal.
【 5 】Lubrication
CAUTION
●Change lubrication according to the instruction manual. Use only the lubrication
recommended. Other kinds of lubrication may damage your equipment.
●Do not lubricate the reducer during or immediately after operation. Doing so may cause burn
injuries.
●Dispose lubrication as general waste.

5-1. GMTK and HMTK
(1) Grease Lubrication
Your reducer is factory lubricated with Nippon Grease Nigtite LMS No.000. Replace
with No.000 or No.00 high quality gear grease accordingly, at the next lubrication
interval.
( ) Grease Quantity in Kilograms
ＧＭＴＫ ＨＭＴＫ
Model
No.
Grease
Quantity Model No. （Gear Ratio） Grease Quantity
０２１８ ０．１４ ０２２０ ０２２２ （１／５ ～１／２５） ０．２７
０２２４ ０．３０ ０２２０ ０２２２ （１／３０～１／６０） ０．２３
０２２８ ０．５０ ０２２８ ０２３０ ０．３３
０４２４ ０．３０ ０４２８ ０４３０ ０．３３
０４２８ ０．５０ ０４３５ ０４３８ ０．５３
０４３８ １．１０ ０７３５ ０７３８ （１／５ ～１／３０） ０．６７
０７２８ ０．５０ ０７３５ ０７３８ （１／４０～１／５０） ０．５３
０７３８ １．１０ ０７４２ ０７４５ １．１５
０７４２ １．３０ １５４２ １５４５ （１／５ ～１／３０） １．４０
１５３８ １．３０ １５４２ １５４５ （１／４０～１／８０） １．１５
１５４２ １．４０ １５５０ １５５５ ３．８０
１５５０ ２．８０ ２２４２ ２２４５ （１／５ ～１／２０） １．４０
２２４２ １．３０ ２２４２ ２２４５ （１／２５～１／６０） １．１５
２２５０ ２．８０ ２２５０ ２２５５ ３．８０
２２６３ ４．２０
(3) Greasing Intervals
In most cases, additional greasing is not required. However, replacing the grease
after 0,000 hours of operation will further extend the reducer life.
5- . TMK, SW(J)MK and EW(J)MK
(1) Oil Lubrication
Your reducer is factory lubricated with Daphne alpha oil TE 60. To lubricate EWMK
80 ~ EWMK 1 5 and SWMK80 ~ SWMK 1 5 be sure to use the attached pressure
vent and apply only the specified oil. Proper lubrication is critical to reducer power,
life and efficiency. Do not mix lubrication oils.

( ) Oil Quantity in Liters
(3) Oil Change Intervals
Oil change is not necessary for TMMK, SWJMK 35~70, and EWJMK 50~70.
However, change the oil if severe oil deterioration cannot be avoided due to certain
operation conditions. Oil change intervals for SWMK80~1 5 and EWMK80~1 5 are
as follows.
a. The first oil change should be carried out after 1,000 hours of operation.
This will remove all the abrasion powder generated by the initial contacts of
parts and will improve performance and increase life.
b. From the second time and thereafter, change oil every 5,000 hours of operation.
If oil performance decreases (change in viscosity, color etc.) shorten the intervals
as needed.
(4) Operation Temperature
After the first ~3 days of operation, the unit will normally under go a considerable
temperature rise. However, if the casing surface temperature of EW(J)MK and
SW(J)MK models exceed 100 ﾟC and that of TMMK exceed 93 ﾟC, the reducer may
not have enough capacity for the operation or its lubrication may be insufficient. In
this case, stop the operation immediately and investigate the problem.
Model Type TMMK１０ TMMK１３ TMMK１６
Mounting
Position Ｅ
０．０８ ０．１７ ０．２９
Model Type SWJMK35 SWJMK4 SWJMK50 SWMK56 SWJMK70
Mounting
Position Ｅ
０．１０ ０．１６ ０．５５ ０．６８ １．３
Model Type SWMK80 SWMK100 SWMK1 5
Mounting
Positions
Ｂ １．０ １．４ ２．２
Ｔ １．８ ２．８ ５．１
Ｖ １．４ ２．１ ３．７
Model Type EWJMK50 EWJMK63 EWJMK70 EWMK80 EWMK100 EWMK1 5
Mounting
Positions
Ｅ＆Ｂ
＆Ｔ ０．５ ０．９ １．０ １．２ １．７ ３．１
Ｅ＆Ｖ １．７ ２．８ ４．８

【 6 】Maintenance Precautions（Inspections and Adjustments）
WARNING
●Avoid contact with rotating parts such as the shaft while carrying out maintenance or
inspection. Rotating parts can catch body parts and cause injuries.
●Do not unplug the pressure vent during operation because hot oil may splash and cause burn
injuries.
●Verify that the drive and driven shafts are completely stopped prior to inspecting gear teeth.
Failure to do so may result in accidents.
● Do not overload the reducer. Doing so may damage the unit and shorten gear life.
CAUTION
●Change lubrication according to the instruction manual. Use only the lubrication
recommended. Other kinds of lubrication may damage your equipment.
●Touching the reducer surface with bare hands may cause burn injuries.
●Do not lubricate the reducer during or immediately after operation. Doing so may cause burn
injuries.
●Handle troubles according to the instruction manual. Be sure to stop the operation and do not
resume until the cause of the trouble has been identified.
● Repair, disassembly and assembly must be carried out by certified engineers.
6-1. Maintenance Precautions
To conduct maintenance:
(1) Dress appropriately and wear safety glasses, gloves and shoes where necessary.
( ) Clean the surrounding area to prevent secondary accidents.
(3) Turn off the power and make sure that your equipment has completely stopped.
Take caution so that the power does not reconnect accidentally.
(4) Touching the reducer during operation may cause burn injuries.
(5) Observe the Labor Safety & Hygiene Regulations, General Criteria, Paragraph 1,
Chapter 1, Edition , or your local regulations.
6- . Maintenance
In general, the reducer may be maintained just by using your common sense and simple
tools.
For example, keep your senses alert for the following indicators of abnormal conditions:
Noise: A cluttering or strange noise.
Vibration: Abnormal vibration patterns.
Temperature: Abnormal increase in temperature.

Oil Leak: Oil leaks from oil seal, cover portion and between the contact surfaces of the
reducer unit.
6-3. Handling Abnormal Conditions
Upon noticing any abnormal conditions, stop operation immediately. If the cause to such
failure cannot be determined, contact the CS Center at TSUBAKIMOTO CHAIN.
6-4. Oil Seal
Operation conditions such as temperature will affect oil seal life and characteristics. You
must replace oil seal if it is causing leaks. Use an oil pan or a similar device for food
processing machines to prevent oil from leaking into food products.
【 7 】Disassembly and Assembly
CAUTION
●Repair, disassembly and assembly must be carried out by certified engineers. Otherwise,
electrical shock, injury and fire may result.
Contact TSUBAKIMOTO CHAIN if disassembly of the unit is required.
【 8 】Storage Requirements
If you are not operating your TERVO Reducer immediately upon purchase, store under the following
conditions.
8-1. Storage Space
Store in clean and dry space. Do not store outdoors where humidity, dust and corrosive gas may be
present. Also, do not expose the unit to extreme temperature fluctuations.
8- . Storage Direction
The unit is delivered in a package that is appropriate for the specific mounting style. Store with the
package in the upright position. In the case of special mounting, take caution so that the grease and
oil in the bearing portion do not mix and start to melt.
8-3.Storage Period
(1) The reducer may be stored up to 6 months.
( ) Storage over 6 months may require a special anti- rust treatment.
8-4. Operation after Storage
(1) Non-metallic parts, such as oil seal, oil gage and oil plug are relatively easily affected by
environmental factors such as temperature and UV rays. Before operating the product after a
prolonged period of storage, inspect these parts to make sure that they function properly. If not,
replace with new parts.
( ) Also, check that there are no abnormal noise, vibration and heat prior to operating the unit.
Contact TSUBAKIMOTO CHAIN CS Center or your distributor in times of product failure.

【 9 】Others
For units with special specifications, refer to the drawings while observing the instructions provided in
this manual. Should you need further information in regards to your special specifications model,
contact TSUBAKIMOTO CHAIN CS Center.
【10 】Disposal
CAUTION
●Dispose TERVO Reducer lubrication grease and oil as general waste.
【 11 】Trouble Shooting
Trouble Shooting Chart
Trouble What to Inspect Action
Motor does not run under
unloaded condition.
Gear, shaft and bearing Carry out professional inspection
Motor does not run when
the unit is loaded
Wear of gear Carry out professional inspection
Abnormal increase in
temperature
Bearing Replace
Loud noise Continuous noise: bearing and gear Carry out professional inspection
Intermittent noise: gear or foreign
objects inside the unit.
Carry out professional inspection
Excessive vibration Gear and bearing Carry out professional inspection
Incomplete mounting, loosened bolts Retighten
Oil leak Loosened bolts Retighten
Oil seal Replace