Sumitomo Sm-hyponic hypoid Operating instructions

SM-HYPONIC DRIVE

SM-HYPONIC®

Hypoid Right Angle Gearmotor

Operating and Maintenance Manual

THE

AVAILABLE

SOLUTION,

WORLDWIDE.

Manual

07.020.60.001

TABLE OF CONTENTS
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
Solid Shaft Type . . . . . . . . . . . . . . . . . . . . . . . . . .1
Hollow Shaft Type . . . . . . . . . . . . . . . . . . . . . . .1-3
Connecting to the Driven Machine . . . . . . . . . . . . . . .3
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6
Standard Wiring, Dual Voltage . . . . . . . . . . . . . . .4
Inverter Wiring, Dual Voltage . . . . . . . . . . . . . . .5-6
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Daily Inspection and Maintenance . . . . . . . . . . . . . . .7
FB Brake Assembly – Inspection, Adjustment, and
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-13
Brake Models FB-01A, FB-02A and FB-05A . . .8-9
Brake Models FB-1B, FB-2B and FB-3B . . . . .9-11
Brake Models FB-5B and FB-8B . . . . . . . . . .11-13
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . .13-15
Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

MOUNTING

Solid Shaft Type

1. Mounting conditions

Ambient temperature: 14°F ~ 104°F

Humidity: 85% or less

Altitude: Lower than 3300 ft (1000 m)

above sea level

Atmosphere: Free from corrosive gases,

explosive gases or steam. It

should also be free from dust

and well ventilated.

Location: Indoors

2. Mount the gearmotor on a rigid surface.

3. There is no restriction for mounting angle.

4. Use hexagon socket head bolts when mounting

RNFM series (flange-mount type). See Table 1 for

bolt sizes.

Table 1

Series Frame Size Size of hexagon socket head bolt

20˝, 23˝ M8

30˝, 33˝ M10

RNFM 40˝, 43˝ M10

50˝, 53˝, 54˝ M12

Hollow Shaft Type

1. Mounting conditions

Ambient temperature: 14°F ~ 104°F

Humidity: 85% or less

Altitude: Less than 3300 ft (1000 m)

above sea level

Atmosphere: Free from corrosive gases,

explosive gases, steam and

dust. It should also be well

ventilated.

Location: Indoors

2. Mount the gearmotor on a driven shaft that has

sufficient rigidity.

3. There is no restriction for the mounting angle.

4. Mounting Procedures

a. Connecting a Driven Shaft

Apply molybdenum disulfide grease to the surface

of the shaft and the inner surface of the hollow

shaft. Slide the SM-Hyponic onto the shaft. To

make the installation smoother if the fit is too tight,

lightly tap the end of the hollow output shaft with a

wooden hammer. Avoid hitting the casing. To

ensure smooth installation of the drive, we

recommend the use of a jig shown in Fig. 1.

The hollow shaft is made according to ISO H8

tolerances. Following installation, ensure that the

fitting between the hollow and the driven shaft is

tightened correctly. We recommend ISO js6 or k6

as the tolerance for the driven shaft.

b. Mounting the SM-Hyponic gearmotor

Fig. 1

a – Retaining ring d – Nut

b – Spacer e – Double-ended threaded bolt

c – Thrust bearing

Fig. 2 Stepped Shaft Option

Fig. 3 Spacer Option

Fig. 4 Set Screw Option

MOUNTING

Fig. 5 Spacer and Plate Option

Fig. 6 End Plate Option

Mount the torque arm on the driven machine side of

the drive casing. Use hexagon socket head bolts for

mounting. (See Table 2 for bolt sizes.)

Table 2

The torque arm (Section A in Fig. 8) should be mounted

to ensure that the contact surface between the drive and

shaft are free from excessive forces. Do not attach the

torque arm using anti-rotation bolts.

For applications that require frequent starts and stops or

frequent reversing, insert a rubber bushing between the

torque arm and securing bolt (or spacer) in order to

dampen impact load.

Fig. 8 Torque Arm Securing Methods

(d) Removing the shaft.

Do not apply excessive force to the gearmotor and shaft.

Using a jig as shown in Fig. 9 will facilitate removal of

the shaft.

Note: The customer should prepare parts for setting, securing or removing

the shaft.

Fig. 9

Good example Bad example

Series Frame Size Size of hexagon socket head bolt

20, 23 M8

30, 33 M10

RNFM 40˝, 43˝ M10

50˝, 53˝, 54˝ M12

60, 63, 64 M20

f – Spacer g – Bolt

h – Plate i – Shaft retaining C-ring

WARNING: Inappropriate installation may result in shaft fretting.

Fretting will cause shaft wear, jamming, and misalignment between

the drive and Customer's

shaft.

Stepped Shaft

MOUNTING

(5) Flange and Foot Mounting (optional).

When installing the SM-Hyponic, ensure that the

gearmotor and the shaft of the driven machine are

properly aligned so that the drive is free from

excessive force.

Good example Bad example Bad example

Fig. 10 Flange coupling

(The concentricity between the

shaft and mounting pilot is out of

allowable range.)

(The shaft centerline is not

positioned at right angles to the

flange.)

Good example Bad example Bad example

Fig. 11 Foot mounting

(optional)

(The shaft center of the bear-

ing unit does not align with

that of the Drive.)

(The parallelism of the

mounting beds is out of

allowable range.)

CONNECTING TO THE DRIVEN MACHINE

Solid-shaft type

1. Mount the connecting device, such as a coupling,

chain, sprocket, gear or V-pulley, on the shaft as

close as possible to the shaft collar. This places

the load point between the center of the shaft and

the shaft collar.

2. We recommend using end cap screws to avoid

possible bearing damage from excessive force or

thrust load that may be applied to the shaft while

fitting the connecting device.

3. When connecting the SM-Hyponic gearmotor to the

driven machine, be sure to align the shafts of both

units (for coupling connection) or keep both shafts

parallel (for chain, gear or V-belt connection).

4. Excessively loose chains will cause a jolt upon start-

up that may damage the SM-Hyponic gearmotor and

the driven machine. Excessive tension of V-belts

may cause bearing failure.

Fig. 12 Fig. 13

WIRING

1. Prior to wiring, refer to the name plate mounted to

the motor portion of the SM-Hyponic gearmotor.

Check the power supply, interconnects, relays,

protective starting devices (i.e., Star (Wye) delta – if

reduced voltage starting is required), space heaters,

thermal sensors and other accessories.

2. Be aware that long wiring may cause voltage drops.

3. Figures 14a – d show standard specifications for

wire connections and terminal marks. Figures

15a – d show specifications for inverter connections.

Figure 16 shows the rotating direction of the output

shaft when using wiring connections shown in

Figures 14a – d. Table 3 lists Brake lining size

specifications and Table 4 lists Varistor

Specifications.

Fig. 14-a Normal Brake Action, High Voltage Fig. 14-b Fast Brake Action, High Voltage

Fig. 14-d Fast Brake Action, Low VoltageFig. 14-c Normal Brake Action, Low Voltage

Motor Rectifier Brake

4321

T3T2T1

OLR

LINE

Furnished by SM-CYCLO®

Motor Rectifier Brake

4321

T3T2T1

OLR

LINE

Furnished by SM-CYCLO®

Motor Rectifier Brake

4321

T3T2T1

OLR

LINE

Furnished by SM-CYCLO®

Motor Rectifier Brake

4321

T3T2T1

OLR

LINE

Furnished by SM-CYCLO®

Standard Wiring Connection, Dual Voltage

Inverter Wiring Connection, Dual Voltage

Symbols

MC: Electromagnetic contacter

MCB: Magnetic circuit breaker

OLR: Overload or thermal relay

VR: Varistor (protective device)

Fig. 15-a Normal Brake Action, High Voltage Fig. 15-b Fast Brake Action, High Voltage

Fig. 15-c Normal Brake Action, Low Voltage Fig. 15-d Fast Brake Action, Low Voltage

Motor Rectifier Brake

4321

T3T2T1

INVERTER MC

LINE

Furnished by SM-CYCLO®

T3T2T1

L3L2L1

MCB

Motor Rectifier Brake

4321

T3T2T1

INVERTER MC

LINE

Furnished by

SM-CYCLO®

T3T2T1

L3L2L1

MCB

Motor Rectifier Brake

4321

T3T2T1

INVERTER MC

LINE

Furnished by

SM-CYCLO®

T3T2T1

L3L2L1

MCB

Motor Rectifier Brake

4321

T3T2T1

INVERTER MC

LINE

Furnished by

SM-CYCLO®

T3T2T1

L3L2L1

MCB

Operating Voltage 200-230V 380-460V

Var. Rated Voltage AC260~300V AC510V

Varistor Voltage 430~470V 820V

Rated FB-01A, 02A Over 0.2W Over 0.4W

Watt FB-05A Over 0.2W Over 0.4W

Table 4 Varistor Specifications

Note: Recommended brake contactor size for fast acting circuit is greater than 5

times the rated current shown in Table 8 on page 8.

WIRING

Motor voltage Mega voltage Insulation

resistance (R)

Low voltage motor 500V Higher than 1 M Ω

(Lower than 600V)

Table 5 Insulation Resistance

Fig. 16 Rotating Direction of the Output Shaft

Note: Replacing two of the three power supplies of a three-phase induction motor will cause the motor to rotate in directions reverse to those

shown in above Figure. Also replacing X with Y of single-phase induction motor will cause the motor to rotate in directions reverse to those

shown in above Figure.

kW HP Frame Speed ratio kW HP Frame Speed reduction ratio

Size Size

0.1 1/4 20 10 •12 •15 •20 •25 •30 •40 •50 •60 0.1 1/4 20 80 •100 •120

0.2 1/3 23 10 •12 •15 •20 •25 •30 0.2 1/3 23 40 •50 •60

30 10 •15 •20 •30 •40 •50 •60 30 80 •100 •120

0.4 1/2 33 10 •12 •15 •20 •25 •30 0.4 1/2 33 40 •50 •60

40 10 •15 •20 •30 •40 •50 •60 40 80 •100 •120

0.75 3/4 43 10 •12 •15 •20 •25 •30 0.75 3/4 43 40 •50 •60

150 10 •15 •20 •30 •40 •50 •60 150 80 •100 •120

1.5 1.5 53 10 •12 •15 •20 •25 •30 1.5 1.5 53 40 •50 •60 •80

260 260 80 •100 •120

2.2 3 54 10 •12 •15 •20 •25 •30 2.2 3 54 40 •50 •60

60 10 •12 •15 •20 •25 •30 •40 •50 60 60 •80

3.7 5 63 10 •12 •15 •20 •25 •30 3.7 5 63 40 •50

5.5 71⁄264 10 •12 •15 •20 •25 5.5 71⁄264 30

If wiring connection has been completed as shown in Fig. 14, a motor shaft rotates clockwise as seen from the fan cover side. The

rotating directions of an output shaft are indicated by arrows in Table below.

RNFM series

R type L type

RNHM series

R type L type

T type

RNYM series

RNFM series

R type L type

RNHM series

R type L type

T type

RNYM series

4. Motor Operation Precautions

a. Always ground the motor terminal box or

frame.

b. Insulation resistance

Determine the insulation resistance (to do this,

separate the motor and the control board). The

insulation resistance value will vary depending on

the temperature, humidity, extent of

contamination, the servicing period, test running

time, as well as the motor output, voltage and

type of insulation. Therefore, the insulation

resistance (r) cannot be expressed uniformly;

however, it should be equal to or greater than the

value listed in Table 5.

LUBRICATION

1. SM-Hyponic gearmotors are grease-lubricated.

They are filled prior to shipment and arrive ready for

customer use.

2. Ensure that the connection to the driven machine is

correct.

3. Ensure that the rotation direction is correct.

4. After completing these steps, start the test run,

without any load, and increase the load gradually.

Also observe the precautions listed in Table 6.

OPERATION

Once the SM-Hyponic gearmotor is installed, ensure that

the wiring is correct and secure prior to operation.

Observe the precautions listed in Table 6 during the trial

run. Stop running the gearmotor if any abnormalities are

detected and contact your nearest sales office or

distributor.

DAILY INSPECTION AND MAINTENANCE

1. Inspect the gearmotor daily for each of the items

listed in Table 7.

2. If any abnormalities are found during daily

inspections, follow the procedures outlined in the

Troubleshooting Guide, Table 20 on page 14. If the

abnormality is not listed or the recommended

procedure does not solve the problem, contact your

nearest sales office or distributor.

3. The SM-Hyponic gearmotor does not require grease

replenishment, but overhauling after 20,000 hours of

operation, or 2 –3 years will extend its life. Note:

Over-hauling consists of disassembling the unit,

replacing the seals and gaskets, cleaning the

internal parts and then repacking the unit with

designated grease.

Observation Possible Cause

Table 6 Trial Run Precautions

(1) The casing is distorted due to an uneven mounting surface.

(2) The gearmotor is resonant due to insufficient rigidity of the mounting surface.

(3) The shaft of the SM-Hyponic and the driven machine are not aligned.

(4) Vibrations of the driven machine are conveyed to the gearmotor.

(5) Rigidity of the driven machine and its shaft is insufficient (hollow shaft type).

(6) Excessive force is exerted on the baffle sections of the torque arm (hollow shaft type).

(7) After the SM-Hyponic gearmotor is flange or foot mounted, undue force is exerted between the gearmotor

and its shaft.

(1) The electric current is exceeding the rated value specified on the nameplate.

(2) The rise and fall of the electric current is too intense.

(3) The ambient temperature of the gearmotor is too high.

Any abnormal noises or

vibrations.

Abnormally high temperature

of the gear casing or motor

frame surface.

Table 7 Daily Inspection Items

Items Details

Electric current Is the electric current higher than the value specified on the nameplate?

Noise Is the gearmotor making any unusual noises?

Vibration Are there any unusual vibrations of the gear case or motor frame?

Is the surface temperature of the gear case, or motor frame not too high or rising suddenly? (The temperature

Surface temperature rise during operation varies depending on the type of motor. There may be a problem, if the temperature

frequently rises approximately 40°C (104°F) above the ambient temperature.)

Grease leakage Is there any grease leaking from the gear assembly?

Mounting bolts Are there any loose mounting bolts?

Chains and V-belts Are there any loose chains or V-belts?

Brake Is the brake lining worn out?

FB BRAKE ASSEMBLY – INSPECTION,

ADJUSTMENT & MAINTENANCE

SM-Cyclo FB series brakemotors are designed to be

mechanically rugged, electrically reliable and efficient

in operation. To maintain this reliable performance,

the brake assembly must be inspected and adjusted

periodically.

Brake Models FB-01A, FB-02A and FB-05A

1. Standard Brakemotor Specifications

Table 8 lists the standard specifications for Models

FB-01A, FB-02A and FB-05A.

This section of the manual pertains specifically to the

brake portion of the SM-Hyponic gearmotor and

provides all the necessary information to insure long

and trouble-free service.

Table 8 Models FB-01A, FB-02A, FB-05A Standard Specifications

Brake Motor Brake Inertia Brake Brake Current Coil Brake Delay Time

Type HP Torque WK2Coil (A) Resis (seconds)

ft-lb lb-ft2230V 460V ohms Normal Fast

FB-01A 1/8 0.7 0.0083 DC Energized 0.1 0.06 2700 0.15 ~ 0.2 0.015 ~ 0.02

FB-02A 1/4 1.4 0.0131 Type, Built-in 0.1 0.06 1791 0.15 ~ 0.2 0.015 ~ 0.02

1/3 Rectifier within

FB-05A 1/2 2.9 0.016 Conduit Box 0.1 0.06 1791 0.1 ~ 0.15 0.01 ~ 0.015

Notes:1) Continuous time rating for both the brake and motor.

2) Indoor types can be installed for use in any orientation.

2. Construction and Operating Principles

a. Construction

Fig. 17 illustrates the construction of the brake.

The restraining bolt (4) fastens the brake shoe (10)

and spacer (2) onto the stationary core (1). The

armature plate (11) is kept from rotation by the

restraining bolt (4) but moves axially by

electromagnetic attraction and the tension of the

pressure spring (12). The brake lining (3) is fitted

to the hub (5), which is secured to the motor shaft

with a key. The solenoid coil (13) is energized via

a rectifier located within the conduit box.

b. Operating Principles

The brake is a (fail-safe type) spring actuated type

brake that releases the brake mechanism when the

solenoid coil is energized and engages when the

solenoid coil is not energized.

When power is applied to the unit, the solenoid coil

and electric motor become energized and the

energized coil attracts the armature plate (11)

against the tension of the pressure spring (12). As

a result, the brake lining (3) disengages and the

motor starts to run.

When the power is disconnected, the solenoid coil

and electric motor are not energized. This causes

the pressure spring (12) to actuate the armature

plate (11), which in turn presses the brake lining (3)

against the brakeshoe (10) and brings the motor to

a quick stop.

No. Part Name

1 Stationary Core*

2 Spacer*

3 Brake Lining*

4 Restraining Bolt*

5 Hub*

6 C-type Retaining Ring

7 Cover

8 Fan (TEFC model only)

No. Part Name

9 Leaf Spring*

10 Brake Shoe*

11 Armature*

12 Pressure Spring*

13 Solenoid Coil*

14 Ball Bearing

15 Motor Shaft

*These parts are included in a complete brake kit.

3 2 16 5 47

12 13 14910 11 158

Table 9 FB-01A, -02A, -05A Parts

Fig. 17 FB-01A, FB-02A, FB-05A Models

3. Inspection

At regular intervals, check that:

a. the unit is operating normally.

b. the brake lining is not excessively worn (or gap G

is normal).

c. all the mounting screws are securely tightened.

4. Gap Inspection

The brake lining will wear after the unit has been used

for a long period of time. Regularly check that gap G

(Fig. 17) is at an acceptable value. If gap G becomes

too large, the solenoid coil may fail to pull in the

armature plate, and hence cannot release the brake,

resulting in the unit remaining in a continuously braked

condition. Follow these steps to inspect the brake gap:

a. Remove the cover (7).

b. Insert a gap gage into the space between the

stationary core (1) and armature plate (11).

Measure the gap size at three appropriate

circumferential points.

c. The gap needs to be adjusted if the values are

close to the allowable limit listed in Table 10.

5. Gap Adjustment

If the brake lining is so heavily worn that gap adjustment

is required, follow these steps:

a. Remove the cover (7).

b. Loosen the restraining bolt (4), rotate the brake

shoe one complete turn counterclockwise and

retighten the restraining bolt (4). After tightening

the restraining bolt, measure the gap G to verify

that it falls between the specification value and

the allowable limit shown in Table 10. (This

procedure reduces the gap approximately 0.012

inch.)

c. Turn the system power on and off a few times to

check the brake performance.

d. Replace the cover (7).

Brake Models FB-1B, FB-2B and FB-3B

1. Standard Brakemotor Specifications

Table 12 lists the standard specifications for Models

FB-1B, FB-2B and FB-3B.

Table 11 Brake Lining Size

Brake Initial

Brake Type lining thickness

dimension to(in)

FB-01A

FB-02A 0.276

FB-05A

Brake Type Gap value G (in)

Spec. value Allowable limit

FB-01A

FB-02A 0.006 ~ 0.010 0.020

FB-05A

Table 10 Brake Gap Size

Table 12 Models FB-1B, FB-2B, FB-3B Standard Specifications

Brake Motor Brake Inertia Brake Brake Current Coil Brake Delay Time

Type HP Torque WK2Coil (A) Resis (seconds)

ft-lb lb-ft2230V 460V ohms Normal Fast

FB-1B 3/4 5.8 0.0267 DC Energized 0.1 0.06 1470 0.2 ~ 0.3 0.01 ~ 0.02

1 5.8 0.0308 Type, Built-in

FB-2B 1.5 11 0.0504 Rectifier within 0.3 0.2 589 0.2 ~ 0.3 0.01 ~ 0.02

2 11 0.0558 Conduit Box

FB-3B 3 16 0.0884 0.3 0.2 589 0.3 ~ 0.40 0.01 ~ 0.02

Notes:1) Continuous time rating for both the brake and motor.

2) Indoor types can be installed for use in any orientation.

FB BRAKE ASSEMBLY –INSPECTION,

ADJUSTMENT & MAINTENANCE

2. Construction and Operating Principles

a. Construction

Fig. 17 illustrates the construction of the brake. The

restraining bolt (7) fastens the brake shoe (15), gap

adjusting shim (5) and spacer (4) onto the stationary

core (1). The restraining bolt (7) keeps the armature

plate from rotating, but the plate moves axially by

electromagnetic attraction and the tension of the

pressure spring (17). The brake lining (8) is fitted to

the hub (10), which is secured to the motor shaft with

a key. The solenoid coil (18) is energized via a

rectifier located within the terminal box.

b. Operating Principles

The brake is a (fail-safe type) spring actuated type

brake that releases the brake mechanism when the

solenoid coil is energized and engages when the

solenoid coil is not energized.

When power is applied to the unit, the solenoid coil

and electric motor become energized and the

energized coil attracts the armature plate (16)

against the tension of the pressure spring (17). As a

result, the brake lining (8) disengages and the motor

starts to run.

When the power is disconnected, the solenoid coil

and electric motor are not energized. This causes

the pressure spring (17) to actuate the armature

plate (16), which in turn presses the brake lining (8)

against the brakeshoe (15) and brings the motor to a

quick stop.

3. Inspection

a. At regular intervals, check that:

•the unit is operating normally.

•the brake lining is not excessively worn (or gap

G is normal).

•all the mounting screws are securely tightened.

b. Manual brake release procedure

FB-1B, -2B, -3B brakemotors are equipped with a

one-touch release mechanism. To manually

release the brake with power to the unit turned off,

pull the brake release lever out from its holder and

push it forward toward the reducer. Releasing the

lever will re-engage the brake.

4. Gap Inspection

The brake lining will wear after the unit has been

used for a long period of time. Regularly check that

gap G (Fig. 18) is at an acceptable value. If gap G

becomes too large, the solenoid coil may fail to pull

in the armature plate, and hence cannot release the

brake, resulting in the unit remaining in a

continuously braked condition. Follow these steps to

inspect the brake gap:

a. Remove the cover (12).

b. Insert a gap gage into the space between the

stationary core (1) and armature plate (16).

Measure the gap size at three appropriate

circumferential points.

c. The gap needs to be adjusted if the values are

close to the allowable limit listed in Table 14.

Fig. 18 FB-1B, -2B, -3B Models

No. Part Name

1 Stationary Core*

2 Brake Release Support

3 Shifting Pin

4 Spacer*

5 GAP Adjusting Sleeve*

6 Brake Release Lever

7 Restraining Bolt*

8 Brake Lining*

9 Leaf Spring*

10 Hub*

No. Part Name

11 Retaining Ring

12 Fan Cover

13 Fan Set Pin

14 Fan

15 Brake Shoe*

16 Armature*

17 Pressure Spring*

18 Solenoid Coil*

19 Fan Side Bearing

20 Motor Shaft

*These parts are included in a complete brake kit.

5 4 1610 7 9 19 201113

617 215 8 3 18 11412

Table 13 FB-1B, -2B, -3B Parts

Brake Type Gap value G (in)

Spec. value Allowable limit

FB-1B 0.008 ~ 0.012 0.020

FB-2B 0.008 ~ 0.012 0.020

FB-3B 0.008 ~ 0.012 0.028

Table 14 Brake Gap Size

Table 15 Brake Lining Size

Brake Initial Allowable

Brake Type lining thickness thickness

dimension to(in) limit

to(in)

FB-1B 0.276 0.236

FB-2B 0.322 0.283

FB-3B 0.354 0.315

Table 16 Models FB-5B, FB-8B Standard Specifications

Brake Motor Brake Inertia Brake Brake Current Coil Brake Delay Time

Type HP Torque WK2Coil (A) Resis (seconds)

ft-lb lb-ft2230V 460V ohms Normal Fast

FB-5B 5 27 0.0227 0.7 0.3 308 0.4 ~ 0.5 0.01 ~ 0.02

FB-8B 7.5 40 0.0297 0.7 0.3 308 0.3 ~ 0.4 0.01 ~ 0.02

Notes:1) Continuous time rating for both the brake and motor.

2) Indoor types can be installed for use in any orientation.

DC Energized

Type, Built-in

Rectifier within

Conduit Box

5. Gap Adjustment

If the brake lining is so heavily worn that gap adjustment

is required, follow these steps:

a. Remove the cover (12). Measure the gap size to

confirm the deviation from the specification value.

The minimum adjustable setting is no less than

the thickness of the Gap adjusting shim, 0.008 in.

b. Loosen the set pin (13) and remove the fan (14).

c. Slightly loosen the restraining bolt (7) and remove

parts (4), (5), (7) and (15) as a set. Be careful not

to remove only the bolt (7) and lose the shims (5).

d. One gap adjusting shim (5) is 0.008 in. thick.

Decrease the number of shims in use according

to the degree of wear (Note: Retain the

removed shims for use during the brake lining

replacement procedure). Reassemble parts (4),

(5), (7) and (15) as a set.

e. Once reassembled, check gap G. If the gap size

is still too large, adjust the number of shims again.

f. After completing the gap adjustment, turn the

system power on and off a few times to check the

brake performance.

g. Replace the fan (14), set pin (13) and cover (12).

6. Brake Lining Replacement

Follow these steps to replace the brake lining when its

thickness has reached the allowable limit shown in Table

15, or when sleeve adjustment is no longer an effective

means of gap adjustment:

a. Remove the cover (12) and measure the gap G.

Remove the set pin (13) and the fan (14).

b. Slightly loosen the restraining bolt (7) and remove

parts (4), (5), (7) and (15) as a set.

c. Remove the brake lining (8), taking care to

prevent the leaf spring from coming off.

d. Install the new brake lining, taking care not to

damage or remove the leaf spring (9). Ensure

that the lining moves smoothly along the hub (10).

e. Replace any gap adjusting shims removed and

retained from previous gap adjustments. Then

reinstall parts (4), (5), (7) and 15 as a set.

f. Measure gap G. Readjust if the gap is not within

the specification value range.

g. Turn the system power on and off a few times to

check the brake performance. If no abnormalities

are detected, replace the fan (14), set pin (13)

and cover (12).

Brake Models FB-5B and FB-8B

1. Standard Brakemotor Specifications

Table 16 lists the standard specifications for Models

FB-5B and FB-8B.

FB BRAKE ASSEMBLY –INSPECTION,

ADJUSTMENT & MAINTENANCE

2. Construction and Operating Principles

a. Construction

Fig. 19 illustrates the construction of the brake.

Among the brake parts, the stationary core (1),

solenoid coil (18), and stud bolt (3) constitute an

integral subassembly unit. The stud bolt (3) keeps

the armature plate (16) from rotating, but the plate

moves axially by electromagnetic attraction and the

tension of the pressure spring (17). The adjusting

washer (4) and spring washer (7) hold the brake

shoe (15) against the nut (8) at all times. The brake

lining (9) is fit to the hub (10), which is secured to the

motor shaft with a key.

No. Part Name

1 Stationary Core*

2 Brake Release Support

3 Stud Bolt*

4 GAP Adjusting Washer*

5 Shifting Pin

6 Brake Release Lever

7 Spring Washer*

8 Nut*

9 Brake Lining*

10 Hub*

11 Retaining Ring

No. Part Name

12 Fan Cover

13 Fan Set Screw or Pin

14 Fan

15 Brake Shoe*

16 Armature*

17 Pressure Spring*

18 Solenoid Coil*

19 Fan Side Bearing

20 Motor Shaft

21 Bearing Cover

22 Leaf Spring*

*These parts are included in a complete brake kit.

Table 17 FB-5B, -8B Parts

Fig. 19 FB-5B, FB-8B Models

b. Operating Principles

The brake is a (fail-safe type) spring actuated type

brake that releases the brake mechanism when the

solenoid coil is energized and engages when the

solenoid coil is not energized.

When power is applied to the unit, the solenoid coil

and electric motor become energized and the

energized coil attracts the armature plate (16)

against the tension of the pressure spring (17). As a

result, the brake lining (9) disengages and the motor

starts to run.

When the power is disconnected, the solenoid coil

and electric motor are not energized. This causes

the pressure spring (17) to actuate the armature

plate (16), which in turn presses the brake lining (9)

against the brakeshoe (15) and brings the motor to a

quick stop.

3. Inspection

a. At regular intervals, check that:

•the unit is operating normally.

•the brake lining is not excessively worn (or gap

G is normal).

•all the mounting screws are securely tightened.

b. Manual brake release procedure

FB-5B, -8B brakemotors are equipped with a one-

touch release mechanism. To manually release

the brake with power to the unit turned off, pull the

brake release lever out from its holder and push it

forward toward the reducer. Releasing the lever

will re-engage the brake.

4. Gap Inspection

The brake lining will wear after the unit has been

used for a long period of time. Regularly check that

gap G (Fig. 18) is at an acceptable value. If gap G

becomes too large, the solenoid coil may fail to pull

in the armature plate, and hence cannot release the

brake, resulting in the unit remaining in a

continuously braked condition. Follow these steps to

inspect the brake gap:

a. Remove the cover (12).

b. Insert a gap gage into the space between the

stationary core (1) and armature plate (16).

Measure the gap size at three appropriate

circumferential points.

c. The gap needs to be adjusted if the values are

close to the allowable limit listed in Table 18.

Brake Type Gap value G (in)

Spec. value Allowable limit

FB-5B 0.016 ~ 0.020 0.039

FB-8B 0.016 ~ 0.020 0.039

Table 18 Brake Gap Size

TROUBLESHOOTING

The SM-Hyponic is running normally when it meets the

following criteria:

1. The motor begins to run immediately after the

start switch is moved to the ON position.

2. The unit does not make any abnormal sounds

during operation.

3. The motor stops running within about 0.5

seconds after power to the unit is switched off.

If you find any abnormality, refer to Table 20 Quick

Troubleshooting Guide on pages 14 –15, and take the

appropriate corrective action as soon as possible.

5. Gap Adjustment

If the brake lining is so heavily worn that gap adjustment

is required, follow these steps:

a. Remove the cover (12).

b. Insert a gap gage into the space between the

stationary core (1) and the armature plate (16)

and rotate the nut (8) at the tip of the stud bolt (3)

clockwise until the gap measures an appropriate

size. If the gap is too large to adjust by this

procedure, decrease the number of adjusting

washers (4) in use. Evenly adjust the three nuts

(8) until the gaps at the three circumferential

points are equal and fall within the specification

range shown in Table 18.

c. After completing the gap adjustment, turn the

system power on and off a few times to check the

brake performance.

d. Replace the fan (14), set pin or screw (13) and

cover (12).

6. Brake Lining Replacement

Follow these steps to replace the brake lining when its

thickness has reached the allowable limit shown in Table

19, or when sleeve adjustment is no longer an effective

means of gap adjustment:

a. Remove the cover (12), set pin (13) and fan (14).

b. Remove all three nuts (8)

c. Remove the brake shoe (15) and take out the

brake lining (9).

d. Fix the leaf spring (22) as shown in Fig. 20.

e. Apply a small amount of grease along the spline

of the new brake lining (9), taking care not to

apply any to the wear surface.

f. Fit the new brake lining (9) onto the hub (10) and

check that it moves smoothly. Remove any

excess grease.

g. After reassembling the brake, measure gap G. If

the gap is out of the specification range, adjust by

rotating the gap adjusting nut (8).

h. Turn the system power on and off a few times to

check the brake performance. If no abnormalities

are detected, replace the fan (14), set pin (13)

and cover (12).

Table 19 Brake Lining Size

Brake Initial Allowable

Brake Type lining thickness thickness

dimension to(in) limit

to(in)

FB-5B 0.394 0.237

FB-8B 0.394 0.237

Fig. 20 Leaf Spring

MOTOR SM-HYPONIC

TROUBLESHOOTING

Problem Possible Cause Corrective Action

Overloading Load exceeds the capacity of the Check rated capacity of the SM-Hyponic; replace

SM-Hyponic with unit of sufficient capacity or reduce load.

Improper Insufficient lubrication Check lubricant level and increase to recommended level.

lubrication Excessive lubrication Check lubricant level and reduce to recommended level.

Wrong lubricant Flush out and refill with correct lubricant as recommeded.

Loose Weak mounting structure Inspect mounting of SM-Hyponic. Tighten loose bolts and/or

Foundation reinforce mounting structure.

bolts Loose bolts Tighten bolts.

Failure May be due to lack of lubricant Replace bearing(s). Clean and flush SM-Hyponic; fill with

of recommended lubricant.

bearings Overload Check rated capacity of SM-Hyponic, replace with unit of

sufficient capacity or reduce load.

Insufficient Level of lubricant in the SM- Check lubricant level and adjust to factory recommended level.

lubricant Hyponic not properly maintained

Overloading of reducer can Replace broken shaft. Check rated capacity of SM-Hyponic.

Motor shaft cause damage

broken Key missing or sheared off on Replace key.

input shaft

Motor Motor Refer to Motor section of Troubleshooting Guide.

doesn’t turn

Faulty switch contact Adjust the contact.

Blown fuse Replace.

Makes a One phase wire of the power Replace.

groaning supply open

sound Stator coil open Repair by rewinding or replacing stator assembly.

Stator and rotor touching due to Replace the bearing and bracket.

bearing housing wear

Starts in

either

direction Three phase is operating as Check the power source with a voltmeter.

when turned single-phase

by hand

Stator coil open Repair by rewinding or replacing stator assembly.

Power failure Contact the power company.

Doesn’tOpen connection Check the source wiring.

make any Outside the wire

noise motor Faulty switch Adjust the contact.

contact

Faulty starter

contact

Rotates in

the wrong Connection error Change any two of the three-phase source.

direction

Fuse blows Shorted lead wire Replace.

Speed

doesn’t Faulty starter contact Adjust.

increase

Table 20 Quick Troubleshooting Guide

Runs Hot

Vibration or

noise

Output shaft

does not

turn

Load is

disconnected

but motor

doesn’t

rotate

Rotates with

the load

disconnected,

but:

BRAKE MOTOR (cont.)

Problem Possible Cause Corrective Action

Groans Overcurrent Rotor and Repair by winding or replacing stator assembly.

Overheating stator touching

One phase of

Overcurrent stator coil Replace the stator winding.

shorted

Makes a high

pitched Faulty bearing Replace the bearing.

metallic

noise

Switch Insufficient switch capacity Replace with one having the rated capacity.

overheats Overload Drop to the rated load.

Fuse blows Insufficient fuse capacity Replace with one having the rated capacity.

Overheats Overload Drop to the rated load.

Voltage drop Consult with the power company.

Overload Drop to the rated load.

Stops Bearing damaged by overheat Replace the bearing.

Improper adjustment after Adjust again.

reassembly

Not wired for fast action Wire for fast action.

Foreign matter entrapped in Remove foreign matter and take preventive action. Wipe lining

brake lining. Oil on lining surface surface with a dry cloth.

Worn brake lining Adjust brake gap or replace lining.

Uneven brake gap Adjust evenly.

Excessive load Decrease load or use larger brake.

Faulty electric circuit Check circuit.

Blow fuse Replace fuse.

Only single phase available from Measure power supply voltage and check for defective circuit.

three phase power supply

Protective device has tripped Eliminate cause and reset.

Damaged or burned motor Repair or replace.

winding

Rust on brake friction surface Clean brake (lining).

Gap needs adjustment Readjust gap.

Burned bearing Replace.

Overload Check and troubleshoot load and safety device.

Foreign material inside the Examine inside brakemotor and remove foreign material.

brakemotor.

Damaged bearing Replace.

Worn brake lining Adjust brake gap or replace lining.

Hub leaf spring is off or damaged Replace.

Burned solenoid coil Replace.

Damaged rectifier Replace.

Voltage drop Raise voltage to rated level.

Overload Reduce the load or oversize the brakemotor.

Improper protective device Adjust protective device.

setting

Table 20 Quick Troubleshooting Guide (cont.)

Rotates with

the load dis-

connected, but:

(cont.)

Rotates

when the

load is dis-

connected

but when

the load is

connected: Speed

suddenly

drops

Brake fails to operate

Brake slips

(Braking time is too long)

Rotor fails to turn

Abnormal noise

Trouble under loaded

condition

CONSTRUCTION

Fig. 21 RNFM series

Fig. 22 RNYM series

Part Description

No.

1 Case (1)

2 Gear

3 Pinion shaft

4 Gear

5 Pinion shaft

6 Hypoid pinion shaft

7 Bearing metal

8 Bearing metal

9 Hypoid gear

10 Output shaft

11 Oil seal

12 Case (2)

Table 21 Main Parts

Central & South America Sales,

Engineering, Stocking & Assembly

Brazil

SM-Cyclo Redutores do Brasil Ltda.

Av. Dr. Ulysses Guimarães, 3533

09990-080 Diadema

São Paulo, Brazil

Tel.: 011-55-11-445-4388 •FAX: 011-55-11-456-2922

Chile

SM-Cyclo de Chile Ltda.

Avenida Zanartu #1231

Comuna Nunoa - Santiago, Chile

Tel.: 011-562-237-2407 •FAX: 011-562-237-0225

Other International Locations

Japan

Sumitomo Heavy Industries

Power Transmission & Controls Group

5-9-11, KITA-Shingawa Shinagawa-Ku

Tokyo 141-8686 Japan

Tel.: 011-813-5488-8363 •FAX: 011-813-5488-8355

United Kingdom

Sumitomo (SHI) Cyclo Drive Europe

Marfleet, Kingston upon Hull

HU9 5RA, United Kingdom

Tel.: 011-44-1482-788022 •FAX: 011-44-1482-713205

Southeast Asia

Sumitomo (SHI) Cyclo Drive Southeast Asia

No. 2 Tuas Link 2

Singapore 638551

Tel.: 011-65-863-2238 •FAX: 011-65-863-4238

Headquarters and Manufacturing