Sumitomo Bevel BUDDYBOX 4 Series User manual

No. CM2020E-3 Maintenance Manual
■These Products should be handled, installed and maintained by trained technicians.
Carefully read the maintenance manual before use.
■A copy of this maintenance manual should be sent to the actual user.
■This maintenance manual should be kept by the user for future reference.
BUDDYBOX®
Bevel BUDDYBOX® 4 Series
Bevel BUDDYBOX® 5 Series
Helical BUDDYBOX®
Application Product BUDDYBOX® with Torque Limiter
《CAUTION》

1
Introduction: Safety Precautions
- Carefully read this maintenance manual and all accompanying documents before use (installation, operation, maintenance,
inspection, etc.). Thoroughly understand the machine, information about safety, and all precautions for correct operation.
After reading, retain this manual for future reference.
- Pay close attention to the "DANGER" and "CAUTION" warnings regarding safety and proper use.
DANGER Improper handling may result in physical damage, serious personal injury and / or death.
CAUTION Improper handling may result in physical damage and/ or personal injury.
Matters described in CAUTION may lead to serious danger depending on the situation.
Be sure to observe important matters described herein.
DANGER
- Transport, installation, plumbing, wiring, operation, maintenance, and inspections should be performed by trained
technicians; otherwise, electric shock, injury, re, or damage to the equipment may result.
- In the case of disassembly, assembly or overhaul of this device, contact the nearest authorized service station.
- When using the equipment in conjunction with explosion proof motor , a technician with electrical expertise should
supervise the transport, installation, plumbing, wiring, operation, maintenance and inspection of the equipment, so as to
avoid a potentially hazardous situation that may result in electrical shock, re, explosion, personal injury and/or damage
to the equipment.
- When the unit is to be used in a system for human transport, a protecting device for human safety should be installed
to prevent accidents resulting in personal injury, death, or damage to the equipment due to running out of control or
falling.
- When the unit is to be used for an elevator or lifter, install a safety protecting device on the elevator side to prevent
falling; otherwise, personal injury, death, or damage to the equipment may result.

22
Introduction: Reading the Maintenance Manual, Table of Contents
This maintenance manual is common for “gearmotors”, “reducers” and “the application products BUDDYBOX with Torque Limiter”.
The symbols shown below appear in the upper right or left corner of each page to indicate the classication. Please read the
applicable pages.
On Common pages, symbols identify distinctions between specic specications.
Specications All specications are
common
Gearmotor
Reducer Application product
Without brake With brake
Mark Common Application
Product
Contents
Common
Introduction: Safety Precautions……………………………………………………………………………………… 1
Introduction: Reading the Maintenance Manual, Table of Contents ……………………………………………… 2
1. Inspection Upon Delivery…………………………………………………………………………………………… 3
2. Storage ……………………………………………………………………………………………………………… 8
3. Transport …………………………………………………………………………………………………………… 8
4. Installation …………………………………………………………………………………………………………… 9
5. Coupling with Other Machines …………………………………………………………………………………… 10
6. Wiring ………………………………………………………………………………………………………………… 19
7. Operation …………………………………………………………………………………………………………… 22
8. Daily Inspection and Maintenance ………………………………………………………………………………… 23
9. Troubleshooting …………………………………………………………………………………………………… 34
10. Construction Drawings …………………………………………………………………………………………… 36
Application Product BUDDYBOX with Torque Limiter
11. Wiring ……………………………………………………………………………………………………………… 42
12. Adjusting Preset Torque …………………………………………………………………………………………… 44
13. Daily Inspection and Maintenance ……………………………………………………………………………… 45
14. Torque Indicator …………………………………………………………………………………………………… 47
15. Construction Drawings …………………………………………………………………………………………… 48
Common
16. Warranty …………………………………………………………………………………………………………… 51

32
Common
1. Inspection upon Delivery
2
Introduction: Reading the Maintenance Manual, Table of Contents
CAUTION
●Make sure that the unit is positioned right side up before unpacking. Otherwise, injury may occur.
●Make sure that the unit agrees with your order. Injury or damage to the equipment may occur by using the incorrect product.
●Do not remove the nameplate from the unit.
Make sure of the following when this product arrives.
1. Do the items shown on nameplate agree with the order?
2. Was there no damage during transportation?
3. Are all bolts and nuts tightened rmly?
Consult our agent, distributor, or sales oce for any defect or questions.
1-1 Inspection of the Nameplate
• Let us know the (1) Nomenclature of gearmotor or reducer, (2) reduction ratio, and (3) serial number when consulting us.
Gearmotor
Fig. 1 Nameplate of Gearmotor
Nameplate of Gear Nameplate of Motor
RATIO
INPUT kW r/min
SERIAL NO.
OUTPUT TORQUE
SERVICE FACTOR
MODEL
N
•
m
JAPAN
1 Type of gearmotor
(Refer to page 4.)
2 Reduction ratio
･Service factor
･Allowable input
capacity and
speed [r/min]
･Allowable output
torque
3 Serial No.
Motor capacity
Characteristics of
motor
Motor efficiency
IE code
Power factor
Brake current value
(for the motor with a
brake)
4 Motor
nomenclature
5 Type of brake
(for the motor
with brake)
Serial No.
Brake torque
(for the motor
with brake)
RATIO
INPUT kW r/min
SERIAL NO.
OUTPUT TORQUE
SERVICE FACTOR
MODEL
N
•
m
JAPAN
1 Type of reducer
(Refer to page 4.)
2 Reduction ratio
･Service factor
･Allowable input
capacity speed
[r/min]
･Allowable output
torque
3 Serial No.
Reducer
Fig. 2 Nameplate of Reducer
1-2 Inspection of Lubrication Method
COMMON
Make sure of the lubrication method by referring to section "8-2. Lubrication Method" on page 24.
• Oil lubrication models are shipped with out oil. Always supply the unit with recommended oil before operation.
•Oil supply for two places is necessary for some models for output side and input side, (such as combination of BUDDYBOX
and CYCLO).

4
Common 1. Inspection upon Delivery
1-3 Inspection of Nomenclature of Gearmotor or Reducer
Nomenclature shows following information. Make sure it agrees with your order.
Reducer frame size
Bevel BUDDYBOX
(5 series)
Bevel BUDDYBOX
(4 series) Helical Buddybox
Frame
size
Output
side
(Bevel)
+
Input
side
(CYCLO)
Frame
size
Output
side
(Bevel)
+
Input
side
(CYCLO)
Frame
size
Output
side
(Bevel)
+
Input
side
(CYCLO)
5Z10□5Z+610□4A10 □4A+610□Z609□Z+609□
5Z11□5Z+611□4A11□4A+ 611□Z610□A+610□
5Z12□5Z+612□4A12□4A+612□Z612□B+612□
5A11□5A+611□4A14□4A+614□Z614□C+614□
5A12□5A+612□4B12□4B+612□Z616□D+616□
5A14□5A+614□4B14□4B+614□Z617□E+617□
5B12□5B+612□4B16□4B+616□
5B14□5B+614□4C14□4C+614□
5B16□5B+616□4C16□4C+616□
5C14□5C+614□4C17□4C+617□
5C16□5C+616□4D16□4D+616□
5C17□5C+617□4D17□4D+617□
4E17□4E+617□
4E18□4E+618□
4E19□4E+619□
4F18□4F+618□
4F19□4F+619□
□indicates 0 or 5, depending on the combination of reduction ratio.
4C145 46BEP10ML YH Y1
Model
LBevel
Buddybox
EHelical
Buddybox
Brake
BWith brake
Blank Without brake
Sux
Blank With 3-phase motor
ES With high-eciency 3-phase motor
EP With premium eciency 3-phase motor
AV With 3-phase motor for inverter-drive (AF motor)
AP With premium eciency 3-phase motor for inverter-drive
TL With Torque limiter
Output shaft projection
Blank None (Hollow shaft)
LOne Side
(The shaft projection from the case surface near the input shaft center line.)
ROne Side
(The shaft projection from the case surface away the input shaft center line)
T Both Sides
Mounting position
Refer to Table 1 and Table 2 on page 5-6.
Output shaft direction
HHorizontal
V
Vertical
(Hollow shaft)
Vertically downward
(Solid shaft)
WVertically upward
(Solid shaft)
Mounting style
YHollow shaft, Shaft mount type
Hollow shaft, Flange mount type
U Solid shaft, Case mount type
F Solid shaft, Flange mount type
H Solid shaft, Foot mount type
Coupling method with driver
Motor Type of input
Without With
MGearmotor
Blank Reducer
(Both - end shaft type)
JJM With input ange
(With coupling base)
XXM With input ange
(High - speed shafthollow coupling)
Motor capacity of gearmotor
4 - pole
Capacity
Symbol 01 02 03 05 08 11H 2345810 15 20 25 30 40 50 60 75
kW
(HP)
0.1
(1/8)
0.2
(1/4)
0.25
(1/3)
0.4
(1/2)
0.55
(3/4)
0.75
(1)
1.1
(1.5)
1.5
(2)
2.2
(3)
3.0
(4)
3.7
(5)
5.5
(7.5)
7.5
(10)
11
(15)
15
(15)
18.5
(25)
22
(30)
30
(40)
37
(50)
45
(60)
55
(75)
Nominal
reduction ratio

54
Common
1. Inspection upon Delivery
Symbol of mounting position / Position of terminal-box / Position of oil ller and draiin / Rotation direction of
output shaft (Bevel BUDDYBOX)
Table 1-b
Table 1-a
Oil ller plug Oil level (Oli gauge) Oil drain plug
Down
Up
Down
Up
Down
Up
Down
Up
Down
Up
Down
Up
Down
Up
Down
Up
Down
Up
Down
Up
Down
Up
Down
Up
"4" Series "5" Series
LH□M-□-□1 LH□M-□-□3LH□M-□-□2
LH□M-□-□4LV□M-□-□6LV□M-□-□5
LH□M-□-□1 LH□M-□-□3LH□M-□-□2
LH□M-□-□4LV□M-□-□6LV□M-□-□5
A
A
A
A~
Ratio
19-305
Ratio
11-18
364-4365
A~
Ratio
19-305
Ratio
364-4365
A~
Ratio
19-305
Ratio
11-18
364-4365
A~
Ratio
19-305
Ratio
11-18
364-4365
A~
Ratio
19-305
Ratio
11-18
364-4365
A~
Ratio
19-305
Ratio
11-18
364-4365
A
A
A
A
A
A
A~
Ratio
19-305
Ratio
11-18
364-10658
A~
Ratio
19～305
Ratio
11～18
364～10658
A~
Ratio
19-305
Ratio
11-18
364-10658
A
A~
Ratio
19-305
Ratio
11-18
364-10658
A
A~
Ratio
19～305
Ratio
364～10658
A
Ratio
11-18
364-10658
A~
Ratio
19-305

6
Common 1. Inspection upon Delivery
Symbol of mounting position / Position of terminal-box / Position of oil ller and draiin / Rotation
direction of output shaft (Helical BUDDYBOX)
Table 2
Oil ller plug Oil level (Oli gauge) Oil drain plug
Ｂ～ Ｂ～
B
Ｂ～
B
Ｂ～
A
A
B
A
A
A
B
A
EH□M-□-□3
EH□M-□-□2EH□M-□-□1
Down
Up
EH□M-□-□4
Down
Up
Down
Up
Down
Up
EV□M-□-□6EV□M-□-□5
Down
Up
A～
Ratio
21-305
Ratio
11-18
364-4365
A～
Ratio
21-305
Ratio
11-18
364-4365
Down
Up
A～
Ratio
21-305
Ratio
364-4365
A～
Ratio
21-305
Ratio
364-4365
A～
Ratio
21-305
Ratio
11-18
364-4365
A～
Ratio
21-305
Ratio
11-18
364-4365

76
1-4 Motor Nomenclature
Nomenclature shows following information. Make sure it agrees with your order.
• Refer to related manual for units with servo motor or DC motor.
H T C E X
Mounting method
HWith Foot
Blank Flange type
Standards • Regulations
PPremium efficiency motor
EIEC Efficiency Standards
Blank Other types of motors
Driving power
VInverter driven (AF Motor)
Blank Commercial power driven
Protection method
AIncreased safety explosion-proof (Indoor)
BIncreased safety explosion-proof (Outdoor)
CExplosion-proof (Indoor)
CX Explosion-proof (Outdoor)
XNonexplosion-proof (Outdoor)
Blank Indoor
Type of casing
TTotally enclosed
Rotor
COrdinary cage type
K Special cage type
Cooling method
EWithout fan (Self-cooling)
FWith Self-ventilating fan (External fan)
B With Separate ventilation fan
1. Inspection upon Delivery

88
Common 2. Storage
Note the following on storing gearmotor or reducer, when not using the unit right away.
2-1 Storage location
Store the unit indoors in a clean dry place.
• Avoid storage outdoors or in places with humidity, dust, sudden temperature changes or corrosive gas.
2-2 Storage period
1. Do not store the unit for more than 6 months.
2. Consult us when the storing the unit for more than 6 months. Special rustproof specication is necessary.
3. Consult us when exporting the unit. Special rustproof specication in necessary.
2-3 Use after storage
1. Make sure that there are no deterioration in non-metal parts, such as oil seal and oil supply plug, before operating after extended
period of storage. Non-metal parts may deteriorate easily by the eect of ambient condition, such as temperature and ultraviolet
rays. Replace the deteriorated parts with new parts.
2. Make sure that there is no abnormal noise, vibration, or temperature rise when starting. Make sure that the brake functions
normally when for types with brake. Consult our distributor or sales oce immediately if any abnormality is found.
Common 3. Transport
DANGER
●Do not stand below the unit when it is lifted. Injury or death may result.
CAUTION
●Be careful not to let the unit drop or fall when moving the unit. Always use the metal hanging piece for gear or motor with it. But
do not hang the unit using the metal hanging piece after mounting with application machine. Otherwise, it may cause personal
injury or damage to the equipment and/or damage to the equipment.
●Make sure of the mass of gearmotor or reducer by looking at the nameplate, packaging, drawing, catalog, etc., before lifting. Do
not lift the gearmotor or reducer, which are heavier than the rated weight of the lifting equipment. Otherwise, it may cause injury
or damage to the equipment and lifting device.

98
Common
4. Installation
8
DANGER
●Use explosion-protection type motor in explosive environment. Do not use the standard unit in explosive environment.
Otherwise, it may cause explosion, ignition, electric shock, injury, re, or damage to the equipment.
●Use the sucient motor for explosion-protection motor matching the hazardous location (where explosive gas or steam exists).
●Inverter itself is not explosion-protection type for ameproof type motor . Always set the unit where there is no explosive gas.
Otherwise, explosion, ignition, electric shock, injury, re, or damage of the equipment may occur.
CAUTION
●Do not use gearmotor or reducer for specications other than the one shown on the nameplate or manufacturing specication
document. Otherwise, injury or damage of the equipment may occur.
●Do not place any combustible object around the gearmotor. Otherwise, re may occur.
●Do not place any object that may prevent ventilation around the gearmotor or reducer. Otherwise, it may lead to burn or re by
abnormal temperature caused by the decreased cooling eect.
●Do not step on or hang from the gearmotor and reducer. Otherwise, it may cause injury.
●Do not touch the shaft end, internal keyway, or edge of motor cooling n with bare hands. Otherwise, it may cause injury.
●Install and oil pan or other device to prevent damage for extremely oil-sensitive applications, such as food production machine.
Otherwise, it may cause defective products by oil leakage when failure occurs or at the end of lifetime.
4-1 Place of installation
Ambient temperature: -10~40°C
Ambient humidity: 85% or less
Altitude: 1,000m or lower
Atmosphere: There should be no corrosive or explosive gas or steam.
The location should be free of dust and well-ventilated.
Location: Indoor (location free of dust without water splash)
• Consult us when operating under conditions other than the above. Special specication is necessary.
• Units made according to certain specication, such as for outdoor or for explosion protection, may be used under specied
mounting environment.
• Install the unit in location where various procedures can be carried out easily, such as inspection and maintenance.
• Install the unit to a suciently rigid base.
4-2 Angle of installation
Install the unit horizontally. Consult us for sloped installation.
Do not use the unit made for given slope for other slopes.
Standard shaft direction for outdoor type gearmotor is horizontal. Consult us for other shaft directions.
• Do not remove the eye-bolt on the motor. When the eye-bolt is removed for any reason, place a bolt in the tapped hole
temporarily. Waterproof treatment is necessary to prevent water entering the motor.
4-3 Under Severe Load Condition
For operation with severe vibration and frequent startup, it is recommended to tighten bolt with at least class 8.8 (by standard JIS
B-1051).

10
Common 5. Coupling with Other Machines
CAUTION
●Make sure of the rotation direction of the application machine before coupling. Dierence in rotation direction may cause injury
or damage to the equipment.
●Remove the temporary key on the output shaft when operating the gearmotor or reducer unit alone. Otherwise, it may cause
injury.
●Place a cover to prevent touching the rotating parts. Otherwise, it may cause injury.
●Be careful of the center alignment, belt tension, and parallelism of the pulleys when coupling the gearmotor or reducer to
the load. Make sure of the coupling accuracy for applications with direct connections. Adjust the belt tension correctly for
applications with belt. Make sure to tighten the bolt for pulley, and coupling before operation. Failure to do so may result in
damage of equipment or injury by broken pieces.
5-1 Conrmation of direction of rotation
Gearmotor
Fig. 3 and 4 indicates rotational direction of output shaft when wired following Fig. 25 on page 21.
• Motor shaft turns in clockwise looking from the anti-load side. This direction is as shown by the arrow in Fig. 3 and 4.
• Exchange connection R and T in Fig. 25 on page 21 with each other when rotating in the opposite direction.
Reducer
Relationship of rotational direction of input shaft and output shaft is as shown by the arrow in Fig. 3 and 4.
Fig. 3 Rotational Direction of Output Shaft for Bevel BUDDYBOX
LHYM
LHY
Series
[Y1]
Note: • Models with reduction ratio 11 - 18 and reducers with "DA," "DB," and "DC," at the end are dierent from the above. Rotational direction of output shaft is
opposite from the above gure when the motor shaft and reducer type input is clockwise
• Figure above is the rotational direction for mounting style "Y1." Refer to Table 1 on page 5 or catalog for other mounting styles.
Fig. 4 Rotational Direction of Output Shaft for Helical BUDDYBOX
EHYM
EHY
Series
[Y3]
Note: • Models with reduction ratio 11 - 18 and reducers with "DA," "DB," and "DC," at the end are dierent from the above. Rotational direction of output shaft is
opposite from the above gure when the motor shaft and reducer type input is clockwise
• Figure above is the rotational direction for mounting style "Y1." Refer to Table 2 on page 6 or catalog for other mounting styles.

1110
Common
5. Coupling with Other Machines
5-2 Installation of coupling
• Do not apply shock or excess axial load to the shaft when attaching the coupling. It may cause bearing damage or collar may fall o.
• We recommend attachment by shrink tting.
(1) When Using Coupling
Adjust the dimensions in Fig. 5 (A, B, and X) within the tolerance shown in Table 3.
Fig. 5
X
A
X
B
Table 3 Centering Accuracy of Flexible Coupling
Tolerance for A
dimension
0.1mm or maker’s
specication
Tolerance for B
dimension
0.1mm or maker’s
specication
X dimension Maker’s specication
(2) When Using with Chain Sprocket and Gear
• Make the tension angle of the chain perpendicular to the shaft.
• Refer to your catalog and other materials on chain for correct tension.
• Use sprocket and gears with pitch diameter at least three times of shaft diameter.
• Make the load point of sprocket and gear closer than the shaft center to the gearmotor or reducer side
(Refer to Fig. 6).
(3) When Using with V-belt
• Too much tension on v-belt will damage the shaft and bearing. Refer to your catalog and other materials on v-belt for correct
tension.
• Make the parallelism and eccentricity (b) between two pulleys 20' or smaller (Refer to Fig. 7.)
• Use the matched set with same circumferential length when using multiple v-belts.
Fig. 6 Fig. 7
Gear
Shaft

12
Common 5. Coupling with Other Machines
5-3 Coupling hollow shaft type with other machines
(1) Attachment and Removal of Hollow shaft and Driven Shaft
(a) Attachment to Driven Shaft
Apply molybdenum disulde grease to the surface of driven shaft and inner diameter of hollow shaft. Insert the gearmotor or
reducer to driven shaft.
Pound the end surface of hollow shaft lightly with a wooden hammer when the tting is tight.
Do not pound casing and oil seal for this purpose. Jigs as shown in Fig. 8 can help smooth insertion when the tting is especially
tight.
Fig.8 Coupling jig
e
c
b
a
d
(a) .......... Retaining ring
(b) .......... Spacer
(c) .......... Thrust bearing
(d) .......... Nut
(e) .......... Bolt
Hollow shaft conforms to JIS H8.
Make the tting between hollow shaft and driven shaft when there is shock load or when the radial load is large. (js6 or k6 of JIS
standard is recommended for driven shaft.)
(b) Uncoupling from driven shaft
Make sure there is no excess force between casing and hollow shaft. Jig as shown in Fig. 9 can help smooth removal.
Prepare jig and parts for attachment, xing, and removal by yourself.
g
hA
i
fA
(f) ............Spacer
(g) .......... Upper bolt
(h) .......... Disc
(i) ........... Retaining ring
Fig.9 Uncoupling jig

1312
Common
5. Coupling with Other Machines
(2) How to attach of torque arm (option)
●Attention of attachment
1 Attach torque arm to the application machine side of the reducer.
2 Attach retainer parts of torque arm (refer Fig.11) to release extra force between the reducer and the driven shaft.
(Retainer is to be supplied by customer.)
3 Never lock the torque arm completely with locking bolts and such.
4 Attach shock-absorbing material between torque arm and attachment bolt (or spacer).
5 Use bolt which meets JIS standard of screw strength ranking by 10.9 or above.
6 Bolts must be made to lock when a torque arm is used. (The method to lock is to use U-nut or spring washer, or to supply
adhesive for locking screw, etc.)
Note: As shock-absorbing material, rubber bushes and spring washers are prepared.
By use and operating condition, dierent shock-absorbing materials are recommended.
• In the case of one direction operation : Spring washers or rubber bushes
• In the case of start-stop operation : Spring washers
Attachment type torque arm (option) Banjo type torque arm (option)
Fig.10 Example of using torque arm
Part of is to be supplied by customer.
Retainer parts of torque arm
Retainer parts of torque arm
Fig.11 Example of retainer (for attachment type torque arm)

14
Common 5. Coupling with Other Machines
(3) Attachment of shock absorbing material (option)
●How to attach with spring washers
• The spring washers that our supply are equivalent to DIN 2093 standardized.
• Use the volts that have more than 10.9 for JIS strength class.
• Attach the spring washers without gap in the part of attachment ( "A" in g.13 ).
If there is gap in the part of attachment, it is afraid that the torque arm is damaged.
• Check spring washers that are smashed. If the spring washers are attached with tightening of nuts such that they are smashed,
they are afraid that spring washers have no function for shock absorbing ,and that BUDDYBOX and the machine of the customer
are suered too much force. In the case of using double nuts, be careful to tighten them without smashing of spring washers.
• For the wear reduction of the spring washers, apply any lubricant such as grease to faces of contacting each spring washers.
• Make always the bolts looseness prevention such as using adhesive for looseness or U-nuts.
• In the case that gap is arise on the part of attachment by initial sag of spring washers, adjust to turn gap to zero-gap with
secondary tightening of the nuts.
Then be careful not to smash the spring washers.
Spring washers
A A
Fig.13 Example of spring washers attachment

1514
Common
5. Coupling with Other Machines
Fixing to Driven Shaft: Always engage the gearmotor with driven shaft when stopping the whirl by attachment method or tie-
rod method.
Fixing Example to Prevent Gearmotor Moving to the Machine side
(Overhead view of EHYM3-A6105)
Spacer Stopper ring
Set screw
Bearing
Machine side
Fig.14 Securing with stepped shaft Fig.15 Securing with spacer
(Driven shaft without steps)
Fig.16 Securing with set screw and stopper ring
(Driven shaft without steps)
Fixing Example to Prevent Gearmotor Moving to the Machine side
(Overhead view of EHYM3-A6105)
Set screw
Stopper
ring
End plate
Spacer
Retaining ring
Machine side
Fig.17 Securing with spacer and retaining ring Fig.18 Securing with end plate Fig.19 Securing with set screw
and stopper ring

16
Common 5. Coupling with Other Machines
5-4 When Using Shrink Disk (Option)
5-4-1 Installing the Shrink Disk
• With grease applied to the squeezing surface (before tightening of the boss), the shrink disk is shipped with the reducer, once you
receive it, you can assemble it immediately.
The inserts padded between plates can be removed by loosening all the bolts.
If you want to remove and reuse the shrink disk used up to now, rst disassemble and clean it, and apply molybdenum disulde
grease to the sliding cone, the tightening bolt, and the surface coming in contact with the bolt head.
(1) Completely degrease the boss holes and all the shafts coming in contact with them.
(2) Slide the shrink disk onto the hollow shaft. Do not tighten any tightening bolt until the driven shaft is inserted into the hollow
shaft.
(3) Slide the driven shaft or reducer to insert the driven shaft into the hollow shaft.
(4) When tightening the bolts, take care to place the surfaces of both plates in parallel. In this case, a wrench with a short grip is
suitable for work.
(5) Make sure that the shrink disk has been placed properly. Then, use a wrench with proper length to start tightening the tightening
bolt. Tighten each bolt clockwise (not diagonally) one by one while keeping the two plates in parallel evenly. It is recommended
that in this case, each bolt be tightened by 30 degrees at each tightening step.
(6) After the shrink disk has been tightened, be sure to check the torque by using torque wrench. The specied torque is described
on the shrink disk nameplate.
(7) Last of all, examine whether the two plates are in parallel.
Note: Operate a shrink disk after correctly installed by a process shown above.
No oil lubrication is applied between a hollow shaft and a driven shaft.
It may cause a scratch or a galling to shafts If a shrink disc is rotated without properly installed.
Driven shaft
(driven machine axis)
Tightening bolt
10.9 (equivalent to 10T
)
Plate
Sliding cone
Hollow shaft
(reducer output shaft)
Completely degrease the hollow
shaft inside surface and the
driven shaft outside surface.
Fig.20 Shrink Disk Construction
5-4-2 Removing the Shrink Disk
• To remove the shrink disk, perform the steps of the installation procedure in the reverse order.
• Loosen the bolts little by little in order so that both plates will not slant on the sliding cone.
• Never remove any bolt unless the two plates are in parallel. If this is disobeyed, both plates may pop out suddenly from the sliding
cone, resulting in a personal injury. For this reason, loosen all the bolts slightly, and insert a wedge between the plates so that they
become parallel.

1716
Common
5. Coupling with Other Machines
5-5 When Using Taper Grip for Hollow Shaft Type
5-5-1 Attachment Procedure of Taper Grip
1. Shaft Preparation Before Attaching the Machine
1-1) Remove all rusts and irregularity (especially protrusion) from the shaft.
1-2) Recommended tolerance of the shaft is "h8"
1-3) Wipe o all dusts and oil with a piece of cloth or alcohols solvent and such.
Take special care to wipe o all traces of oil or grease.
2. Set taper grip on the reducer.
2-1) Apply a thin coat of oil on the screw part at the taper grip.
2-2) Place thrust collar on the screw part of the taper grip.
Insert taper grip into the reducer shaft by clockwise rotation.
Rotate taper grip until the ange touches the thrust collar (Refer to Figure 21).
2-3) Next, rotate the taper grip counter clockwise and match the spot facing hole of the thrust collar and screw hole of the taper
grip.
Rough indication of the distance between thrust collar and taper grip ange is about 1 mm (Refer to Figure 22).
Tighten all setting bolts in the taper grip.
Tightening force should be just enough so that the bolt touches the spot facing hole lightly (about the force of hand-
tightening the bolt directly).
Fig.21 Bush Attachment to the Reducer Fig.22 Opening between Taper Grip Flange and Thrust Collar
Hub Striker
Reducer
Taper grip Bush
1mm appjrox.
3. Attach the reducer to the mechanical shaft.
3-1) Place reducer (hollow of the taper grip) on the mechanical shaft and insert to the
designated position (all the way into reducer dimension L1).
Loosen tightening bolt when it is dicult to insert. Do not pound strongly with
hammer, etc.
3-2) Tighten screw of taper grip in the following order.
Always use torque wrench for tightening bolts.
Designated tightening torque of the bolt is as indicated in Table 4 on page16.
1 First, tighten all bolts in the order indicated in Fig.23 (1 2 3 4 5 6) using
1/3 of the designated tightening torque.
2 Second, tighten all bolts in the same order using 2/3 of the designated tightening
torque.
3 Third, tighten all bolts in the same order using the designated tightening torque.
4 Finally, tighten all bolts in the same order a few times using the designated
tightening torque.
Now, the attachment is complete.
Fig.23 Tighten all bolts in the
order indicated
123456
6
4
3
5
1
2

1818
Common 5. Coupling with Other Machines
4. Additional tightening after operation.
Check the tightening torque 20-30 hours after operation. Tighten again with designated tightening torque when they seem to be
loose.
Make sure to check the tightening torque in regularly, such as once every half year.
Table 4-1 Bevel BUDDYBOX
Frame size Tighten Bolt Tighten Torque
Q'ty Size N・
m
4A10□, 4A11□, 4A12□, 4A14□6M12×15 75
4B12□, 4B14□, 4B16□6M12×15 140
4C14□, 4C16□, 4C17□6M16×20 250
4D16□, 4D17□, 4D18□6M16×20 300
4E17□, 4E18□, 4E19□8M16×20 300
Table 4-2 Helical BUDDYBOX
Frame size Tighten Bolt Tighten Torque
Q'ty Size N・
m
Z609□6M10×15 31
A610□6M12×15 51
B612□6M12×15 51
C614□6M16×20 128
D616□6M16×20 200
E617□8M16×20 200
□is 0, 5, DA, DB, DC.
5-5-2 Taper Grip Removal
1. Loosen tightening bolt in the designated order slowly until they separate from the thrust collar of the spot facing hole.
2. Pound the ange of the taper grip lightly with a wooden or a plastic hammer.
Now, the reducer is free from the mechanical shaft.
3. Tighten two of the tightening screw lightly by hand.
This is for not locking the taper grip when removing the reducer from the shaft.
Remove reducer from the mechanical shaft in this condition.
Use the puller for taper grip ange when removal is dicult.
5-5-3 Cautions on Handling Taper Grip
1. Never use lubricants containing antifriction composition. It may reduce the designated transmission torque.
2. Always use a torque wrench when tightening bolt and apply designated torque in the order indicated in this maintenance
manual.
It may result in reduced transmission torque or loosening otherwise.
3. Do not exceed the designated tightening torque.
It may result in damages of bolt, taper grip, etc.
4. Tighten bolts regularly for safety.

1918
6. Wiring
18
• Directions on this manual are for use with standard three-phase motor made by Sumitomo Drive Technologies .
Use the related motor manual when using motor with brake and motor made by other companies .
DANGER
●Do not work on the unit with live wire. Always turn o the power before working on the unit. Otherwise, electric shock may
occur.
●Connect following the diagram in shown in the terminal box or maintenance manual. Incorrect wiring may cause electric shock
or re.
●Do not force to bend, pull, or pinch power cable and motor leadwire. Otherwise, it may cause electric shock or re.
●Make sure to ground the ground terminal. Failure to do so may cause electric shock.
●Follow the standards and regulations for electric facility, extension line, and explosion protection, in addition to maintenance
manual. Failure to do so may cause explosion, ignition, electric shock, injury, re, or damage to the equipment.
CAUTION
●Conduct wiring following the standards and regulations for electric facility and extension line.
●Motor is not equipped with any protective device. But it is mandatory to attach an overload protector to by electric facility
standard. We also recommend installing other protection device such as earth leakage breaker in addition to overload protector.
●Do not touch the terminal when measuring insulation resistance. Electric shock may occur otherwise.
●Use electromagnetic switch on the primary side (3-contact type) when using star delta starter . Fire may occur otherwise.
●Use a suppresser lter or reactor on the inverter side, or provide reinforced insulation on the motor side when using a
400V class inverter to drive the motor. Otherwise, re or damage may occur by insulation breakdown.
●Always use the specied combination of motor and inverter when driving explosion protection motor with inverter. The approval
is only for the specic combination.
●Make sure that there is no explosive atmosphere when measuring insulation resistance for explosion-protection motor. Explosion
or ignition may occur when any explosive gas or steam is near the unit.
• Voltage drops when the cable is long. Use cable with sucient diameter to keep the voltage drop 2% or less.
• Make sure that there is no loose attachment bolt for terminal box after wiring. Then attach terminal cover for outdoor type and
explosion proof type .
6-1 How to Attach and Remove Terminal Cover (for 0.1~0.4kW Three-Phase Motor)
(1) Removal
Hold the side of the terminal box as in Fig. 24. Pull o toward yourself. The cover will come o.
Fig. 24
(2) Attachment
Place the terminal box cover on the terminal box casing. Push until the terminal box clicks back into place.