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Read all instructions before using

This product is mainly designed for dental laboratory use.

This product can be used for clinical use at dental clinic.

Thank you for your purchase.

In order to have trouble-free performance

Please read all instructions before operating.

Please keep this manual for future reference.

Saeshin is not responsible for the accident causing by not 

following the instructions.

Design and specification of the product can be subject to be 

changed for improving the quality.

Informing the product, model faulty status, and the customer’

(tel# or email etc), the kind consulting and quick service will 

provided.

[caution!]

[CONTROL BOX ]

CHANGE COLLET CHUCK

[STRONG102WL]-Easy chuck open type

[HANDPIECE]

REPLACEMENT OF FUSE

CAUTION

In case of easy chuck change type or front-chuck-open type (Forte, 103L, 

107 and 102 WL HP), please use it after checking the bur is completely lock. 

This is because the chuck coul could be loose after chuck or bur change.

5. Hold handpiece with one hand and with the other hand, tirn on the 

power of control box.

6. Check handpiece running normally controlling speed dial in control box.

7. Turn off the power and connect the foot pedal to control box. Check 

speed operating of the pedal.

8. Turn off the power  and switch to reverse direction. Turn on the power 

and check the operating.                        

Handpiece - 1year

Control box & Foot Pedal - 1 year

Warranty does not include misuse or normal wear of bearing, 

carbon brush collet chuck, spindle and armature.

In case of the fault or malfunction from the misuse of the user

-Using with wrong Input Votalge (AC Voltage)

-Dropping down during setting or moving

-In case of user’s misuse or improper use

-Using consumable parts or accessorues not recommended by 

manufacturer

-Malfunction after repairing at the places not recommended by 

manufacturer

Other cases

- Faulty by Act of God (Fire, sea wind or water, flood etc).

-Replacing by the normal wear of the consumable parts

     (ball bearings, collet chuck, carbon brush, spindle, or          

      armature etc.)

SERVICE FOR CHARGE

1 After checking off-switch in control box, plug in.

2. Connect handpiece to output of control box.

3. Set the speed dial of control box to “0”

1-CONTROL BOX

2-HANDPIECE

3-SPEED FOOT PEDAL

   ON/OFF FOOT PEDAL

4-POWER SWITCH

5-FORWARD-REVERSE SWITCH

6-MOTOR CONNECTOR

7-SPEED CONTROL DIAL

8-FOOT PEDAL CONNECTOR

9-POWER CONNECTOR

10-FUSE HOLDER

11-HAND FOOT SWITCH

[PART NAME]

SETTING AND OPERATION

Ram Products, Inc. 182 Ridge Road, Suite D Dayton, N.J. 08810 

Phone: 1-877-RAM-PROD / 1-732-651-5500  Fax: 1-732-651-6688 

or e-mail us at ram@ramhp.com Monday thru Friday 8:30 – 6:30 EST

Please turn off the switch when you do not use the unit

1. Do not work in a dangerous place. Do not use the control box in a  

     humid place.

2. Transport and storage conditions:

3. Our handpiece & foot pedal should be only used for our control unit.

4. Bur

5. Check for any troubles, including vibration of bur, at low speed, and then 

start high speed.

6. Operate the speed control dial in control box softly

7. Use a fuse of 220V/230V/2A for control box.

8. Turn off the power in order to change the bur.

9. Be careful not to drop the handpieces as it may be damages or broken. 

In that case it is dropped, check if the bur is bent or if any excessive heat 

is generated while carefully operating it.

10. If any problem occurs in handpiece use after repairing.

11. Do not turn on the power of control box while the collet chuck of 

handpiece open (Short circuit of the motor may be caused).

12. Make sure that the switch is off before putting the power plug in the 

socket, in order to avoid an unexpected injury due to sudden start.

13. A circuit breaker is provided to protect the motor. It is actuated when 

there is an overload which the motor cannot stand. Work within a range 

of load whis it is not actuated.

14. Do not open the chuck while operating.

15. Keep the handpiece with setting a bur to the collet church after 

operation.

16. Do not put the handpiece down before it stops completely.

17. Be sure to pull out the power cord before moving the control box. 

18. Use the specified voltage.

19. Use accessories suitable for this product.

20. For recommended speed in various applications, follow the 

manufacturer’s instructions.

21. Wear proper protective clothes and equipment, including a dust mask 

and safety googles. Use a proper suction unit and ventilator.

22. Keep the work place clean. Debris may cause an accident.

Temperature: 1~40oC

Humidity 30~75% RH

Atmospheric Pressure

:700 hPa to 1060 hPa

*Dimensions of the bur: 2.35mm (ISO7785-2 TYPE2)

*Minimum fitting length of bur: 10mm

*When locked in the chuck the maximum projection length of should be 

less than 3mm Use a bur the conform to the ISO standards.

Avoid using a rusty or bent bur that may cause excessive wear of 

bearings.

Keep safe speed, and precautions recommended by bur manufacturer.

[The allowable RPM according to the bur diameter]

Please keep the RPM according to below diagram against the accident.

<The allowable RPM could be different from the bur material and type.

RPM

50,000
45,000
40,000
35,000
30,000
25,000
20,000
15,000
10,000

5,000

0

2under 2-4

4-8

8-18

18-28

28-40

40 over

problem

The power is out.
The power lamp is

out, when the power

switch turn on

The handpiece does

not run, when the 

hand/foot switch is

on and power lamp 

is on.

The motor

does not 

run

The motor

uns

Speed control is out The control box

may have a problem.

Ask to the seller

Change the carbon 

brush or ask to the 

seller

Check the carbon 

brush

check if the cord 

is broke down or 

disconnected.

Check the pedal 

connection.

Connect the pedal 

properly

Check the connection

connector and HP cord

Connect the 

handpiece

properly

Open the end cap of 

handpiece and check the

burnt smell.

Check if the 

OV (overload)

lamp is on

Check the connection 

of power cord

The control box may 

have a problem

Check the fuse.

Connect the power cord

properly.

Turn off the power and 

then turn on.

Ask to the seller.

Ask the seller.

check

cause

solution

problem

cause

The handpiece does not run 

although the chuck is lock.

Check the connection of 

bearing, carbon brush, 

control box

Ask to the seller.

Ask to the seller.

The handpiece is getting 

warm during use.

Check the bearing.

Ask to the seller.

The noise and vibration 

happen during use.

Check the bearing and chuck.

Check if the bur is bent

Ask to the seller.

Change the bur.

solution

CHANGE CARBON BRUSH

The fuse is in a small fuse box beside the power connector at the back of 

the control box

Pull out the fuse box then replace it with a new one

(120V-T3.15A/250V,230V-T2A/250V)

Please make sure the power is off, before you change the carbon brush.

Please run the motor for 1 minute with non-load in order to put the carbon

brush in right place.

Please check periodically the carbon brush wear in order to prevent the 

sever damage.

The motor can be damaged if the carbon brush worn out is not changed in

proper time.

[ 102, 102L, 102LS, 102WL, 102L, 107II, 120II, 108E, 108EI ]

[caution!]

Carbon part

1

2

3

Terminal

Carbon

1. Unscrew the carbon bolt. The terminal is separated at the same time.

2. Change carboon brush.

1. Unscrew the bolt 130-23 and unscrew 130-13 fixed the carbon brush.

2. Remove the soldered carbon and change the new one.

[130]

130-13

130-23

1

2

1

1

1

2

2

2

WRENCH

WRENCH

open

1. Open the chuck and remove the bur.

2. Fix the wrench to chuck and turn into 

1. Set and fix the wrench turning the bur.

2. Turn to open direction. check open.

3. Turn the chuck  to the counter-clockwise In case of not turning by 

hand,use wrench.

4. Change the chuck.

5. Fix the bur and chuck turning to clockwise.                                                               

And then turn again to counter clockwise a bit and set the tension to 

remove the bur.

[caution!]

Lock the handle properly.

If the handle is turned continuously with pressure,

the handle and motor part may be disassemble. 

If not skilled engineer, do not disassemble. It may cause the breakage.

For the replacing the ball bearings, fix the wrench on the nose tip and then 

turn the handle to the “open” direction.

Turn the wrench and loosen the nose tip slightly.

Turn the handle again to the “close” direction.

Spin the wrench again until the nose tip is disassembled and then bearings 

can be replaced.

However, if the process is not followed property, the nose tip may be damaged 

or broken.

If not skilled engineer, do not disassemble.

1.  Fix the wrench to the collet chuck in spindle ass’y and turn to the arrow   

     mark directon with screwdriver.

2. Change the chuck.

[caution!]

Clean and assembly the chuck very carefully..

If not skilled engineer, do not disassemble the handle and motor part.

It may cause the breakage.

If disassembled, delrin joint of handle and the shaft of the motor part has to be 

fit each other.

If it does’t, vibration, nose, heat and bearing damage may caused.

*If the chuck is not open, please turn it with the wrench.

SUGGESTION FOR MAINTENANCE

1. Keep the place around in the handpiece clean from dust and grindings.

2. Remove dust on handpiece wiping with isoprophyl alcohol and avoid wet inside. 

Do not apply the oil to the goods or clean with water.                                                

The grease inside of the bearing could melt away due to the oil.

3. Air cleaning is acceptable but air pressure may affect the handpiece or motor.

4. Insertion and removal of bur   

 

 

Turn the handle in the open direction to open the chuck. 

 

 

Then the chuck is opened and the bur is removed, turn the handle in the close 

direction, and the chuck is closed and the bur is recurred. Turn the ring until a 

click sound.

[STRONG 102, 102L, 102LS, 107II,120II]

spindle

ass’y

 

 

 

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