NSK Volvere Vmax Operation Manual

Page 1

Micromotor for Laboratory Work

IMPORTANT INSTRUCTIONS AND WARNING - Electric Devices

WARNING !

When using electric tools, basic safety precautions should always be followed to reduce the risk of fire, electrical shock and personal injury, including the following. Read all these instructions before operating this product and save these instructions.

A. GROUNDING INSTRUCTIONS

1. In the event of a malfunction or breakdown, grounding provides a path of least resistance for electric current to reduce the risk of electric shock. This tool is equipped with an electric cord having an equipment-grounding conductor and a grounding plug. The plug must be plugged into a matching outlet that is properly installed and grounded in accordance with all local codes and ordinances.

2. Do not modify the plug provided - if it will not fit the outlet, have the proper outlet installed by a qualified electrician.

3. Improper connection of the equipment-grounding conductor can result in a risk of electric shock. The conductor with insulation having an outer surface that is green with or without yellow stripes is the equipment-grounding conductor. If repair or replacement of the electric cord or plug is necessary, do not connect the equipment-grounding conductor to a live terminal.

4. Check with a qualified electrician or service personnel if the grounding instructions are not completely understood, or if in doubt as to whether the tool is properly grounded.

5. Use only 3-wire extension cords that have 3-prong grounding plugs and 3-pole receptacles that accept the tool's plug.

6. This tool is intended for use on a circuit that has an outlet that looks like the one illustrated in Sketch A in Figure (below)(120V). The tool has a grounding plug that looks like the plug illustrated in Sketch A in Figure (below). A temporary adapter, which looks like the adapter illustrated in Sketches B and C, may be used to connect this plug to a 2-pole receptacle as shown in Sketch B if a properly grounded outlet is not available. The temporary adapter should be used only until a properly grounded outlet can be installed by a qualified electrician. The green-colored rigid ear, lug, and the like, extending from the adapter must be connected to a permanent ground such as a properly grounded outlet box.

Grounding Method

002

ADAPTER

GROUNDING

(A)

METAL SCREW

COVER OF GROUND

OUTLET BOX

(B)

(C)

GROUNDING MEANS

GROUNDING

(D)

7. USE PROPER EXTENSION CORD. Make sure your extension cord is in good condition. When using an extension cord, be sure to use one heavy enough to carry the current your product will draw. An undersized cord will cause a drop in line voltage resulting in loss of power and overheating. Table (below) shows the correct size to use depending on cord length and nameplate ampere rating. If in doubt, use the next heavier gauge. The smaller the gauge number, the heavier the cord.

Minimum gauge for cord

Volts

Ampere Rating

More Than

6 10 12

Not More Than

6 10 12 16

120V 240V

7.5m(25ft.) 15m(50ft.)

#18 #18 #16 #14

B. OTHER WARNING INSTRUCTIONS

1. For your own safety read instruction manual before operating tool.

2. Wear eye protection.

3. Replace cracked wheel immediately.

4. Always use guards and eye shields.

5. Do not overtighten wheel nut.

6. Use only flanges furnished with the grinder.

7. REMOVE ADJUSTING KEYS AND WRENCHES. From habit of checking to see that keys and adjusting wrenches are removed from tool before turning it on.

8. KEEP WORK AREA CLEAN. Cluttered areas and benches invite accidents.

9. DON’T USE IN DANGEROUS ENVIRONMENT. Don’t use power tools in damp or wet locations, or expose them to rain. Keep work area well lighted.

10. Risk of injury due accidental starting. Do not use in an area where children may be present.

11. DON’T FORCE TOOL. It will do the job better and safer at the rate for which it was designed.

12. USE RIGHT TOOL. Don't force tool or attachment to do a job for which it was not designed.

13.

WEAR PROPER APPAREL. Do not wear loose clothing, gloves, neckties, rings, bracelets, or other jewelry that might get caught in moving parts. Nonslip footwear is recommended. Wear protective hair covering to contain long hair.

14. ALWAYS USE SAFETY GLASSES. Everyday eyeglasses only have impact resistant lenses, they are NOT safety glasses. Also use face or dust mask if cutting operation is dusty.

15. SECURE WORK. Use clamps or a vise to hold work when practical. It’s safer than using your hand and it frees both hands to operate tool.

16. MAINTAIN TOOLS WITH CARE. Keep tools sharp and clean for best performance and to reduce the risk of injury to persons. Follow instructions for lubricating and changing accessories.

17. DISCONNECT TOOLS before servicing; when changing accessories, such as blades, bits, cutters, and like.

18. REDUCE THE RISK OF UNINTENTIONAL STARTING. Make sure switch is in off position before plugging in.

19. USE RECOMMENDED ACCESSORIES. Consult the owner’s manual for recommended accessories. The use of improper accessories may cause risk of injury to persons.

20.

NEVER LEAVE TOOL RUNNING UNATTENDED. TURN POWER OFF. Don’t leave tool until it comes to a complete stop.

21. For recommended operating speed for various applications, please follow the instructions of bur manufacturers.

22. Use Accessories suitable for Max. 40,000

min-1(rpm).

23. The system functions normally in the environment where the temperature is at 0-40°C, humidity at 10-85% RH, and no moisture condensation in the Unit. Use at outside of these limits may cause malfunction.

24. Store the system in the place where the temperature is at -10-60°C, humidity at 10-85% RH, atmospheric pressure at 500-1060hPa, and the system is not subject to air with dust, sulfur, or salinity.

25. Do not disassemble or alter the product by yourself.

26. Be careful not to be injured by the grinder or bur.

27. Be sure to replace fuse with the correct type and rating.

28. Do not place equipment so that it is difficult to pull cut power supply cord from rear side receptacle.

29. Be sure to turn the power off before cleaning and maintenance of the handpiece.

C. Important Instructions and Warning on VOLVERE Vmax.

1. No lubrication is required to either motor or handpiece because ball bearing filled with grease are used in both motor and handpiece.

Activation of Circuit Breaker means too much load is applied to the motor beyond the capacity the motor takes. This circuit

breaker is designed to protect the motor, but it is desired to perform the grinding work without activating the circuit breaker.

3. Never move Chuck Control Ring of Lever to the direction of LOOSEN while motor is running.

4. Care should be taken not to drop micromotor handpiece on floor or hard work surface in order to avoid damage caused by impact shock.

5. While motor is running, care should be taken to prevent foreign particles from entering the motor through the cooling vent openings.

6. Only use with original power supply cord. In case of damage, contact NSK / Nakanishi service center.

7. Equipment to be sent back to manufacturer for servicing / repair.

Total length of cord

15m(50ft.)

30m(100ft.)

30m(100ft.) 60m(200ft.)

Cord Number

#16 #16 #16 #12

#16 #14 #14

Not Recommended

45m(150ft.) 90m(300ft.)

#14 #12 #12

Specifications

CONTROL UNIT

Model

Power Source

Weight

Dimensions

Output

MOTOR

HANDPIECE(STANDARD TYPE

Model

Speed Maximum Output Maximum Torque

Weight

Dimensions

NE-120 AC120V/230V 50/60Hz 30W 2kg (4.44Lb) W95 (3.74") x D190 (7.48") x H180 (7.09")mm DC35V 0.6A

)

GX35RMS 1,000 - 35,000min 71W (892oz)

4.1cN-m 251g (9.35oz) (include motor cord) φ24.5 (0.96") x L143.5 (5.65") mm

-1

(rpm)

Torque Characterstics of VOLVERE-Vmax

GX35RMS

(rpm))

-1

Speed (min

0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

Torque (cN-m)

Page 2

Description

1 2 3

4 5 6 7

11 12

Speed Display

Motor ON/OFF LED

Motor ON/OFF Switch

Speed Control Knob

HAND LED

HAND/FOOT Selector Switch

FOOT LED

Output Connector

Auto Cruise LED

Auto Cruise Switch

FWD LED

FWD/REV Selector Switch

REV LED

Power Switch

Installation

1. Connecting Motor Cord Plug

Insert the motor cord plug in Output Connector .(Fig.3)

Handpiece Holder

Foot Control (FC-40)

Motor Handpiece

Handpiece Stand

Foot Control Connector

AC Power Fuse Box

Power Cord

2. Connecting Power Cord

Insert Power Cord plug in AC Power Fuse Box

at the back of the control unit, aligning the fuse box and plug. (Fig. 4)

3. Connecting Foot Control

Insert Foot Control plug in Foot Control Connector

at the back of the control unit. (Fig. 5)

4. Mounting Handpiece Holder

Mount Handpiece Holder at either side of the control unit.

Adjust the angle and tighten the screw. (Fig. 6) *Handpiece Holder can be mounted at either side of the control unit.

Fig. 3

Fig. 4

Fig. 5

Fig. 6

Assembling and Mounting Suspension Handpiece Cradle (Option)

Mount Handpiece Cradle

Mount the handpiece cradle and other parts at the end of the suspension arm as shown in Fig. 7 and secure with the nut.

Fig. 7

Mounting on Control Unit

Mount the suspension arm on either side of the Control Unit, on which the handpiece holder is not attached, and secure with the screw. (Fig. 8)

Fig. 8

Adjusting Length of Suspension Arm

Loosen the fastening ring of the suspension arm to extend the arm and secure with screw. (Fig. 9)

Assembling of Hpc. Cradle

Control

Unit

Fastening Ring

Loosen

Tighten

Fig. 9

Setting Motor Cord

Place the motor handpiece on the handpiece cradle on the work bench. Take enough cord length for work, and lock the motor cord in the cord clamps on the suspension arm. (Fig. 10)

Fig.10

Adjusting Angles of Suspension Arm

Cord Clamp

Angles of A and B are freely adjustable. (Fig. 11) If adjusting the angles repeatedly, the joint parts might become loose. Tighten the screws with Phillips screwdriver on both sides. (Fig. 12)

Tighten Joint Section

of Arrow C on Fig.11

Fig.12Fig.11

Philips screwdriver

Page 3

Operation Procedures

(1) Insert Power Cord plug into an outlet. (2) Make sure that Speed Control Knob is set to the lowest position. (3) Turn on Power Switch , and check if Speed display shows. (4) Select either forward or reverse direction by FWD/REV Selector Switch . Every pressing alternates FWD and REV. (5) Select either hand or foot operation by HAND/FOOT Selector Switch . Every pressing alternates HAND and FOOT.

Operation-1

Manual Operation

After (1)-(4) operations above, go to the following procedures. (5) Select hand operation by HAND/FOOT Selector Switch . (HAND LED lights.) (6) To operate Motor Handpiece , press Motor ON/OFF Switch . (Motor ON/OFF LED lights.)

(7) Adjust the rotation speed by turning Speed Control Knob . (8) To stop Motor Handpiece , press Motor ON/OFF Switch . (Motor ON/OFF LED stops lighting.)

Operation-2

Foot Control Operation

After (1)-(4) operations above, go to the following procedures. (5) Select foot operation by HAND/FOOT Selector Switch . (FOOT LED lights.) (6) To operate Motor Handpiece , apply pressure to Foot Control .

(7) Adjust the maximum speed by turning Speed Control Knob . The rotation speed can be adjusted by foot up to the maximum speed, that is preset by Speed Control Knob . (Variable operation) (8) To stop Motor Handpiece , stop applying pressure to Foot Control .

*Auto Cruise Mechanism

To operate Motor Handpiece at a constant speed below the maximum speed preset by Speed Control Knob , press Auto Cruise Switch when the motor handpiece rotates at the required speed. Auto Cruise LED lights

and the rotation speed would not change even if the foot Control is released. To cancel auto cruise operation, press Auto Cruise Switch or Foot Control once again.

1 2 3 4 5

12 14

Fig.13

Caution

Make sure that the chuck control lever or the bur lock ring is at lock position when starting the motor handpiece.

Protective Circuit

When the control unit is overloaded or the motor is to operate in spite of the chuck control lever or the bur lock ring is in open position, the protective circuit functions to stop the motor and Speed Display shows error codes.

To reset the protective circuit,

・ At manual operation, press Motor ON/OFF Switch . ・ At foot control operation, release Foot Control .

Error Code

When the motor stops operation, Speed Display shows error codes, which instruct what is problem.

Detection of overcurrent

Detection of overvoltage Detection of discontinuity in

Speed Control Knob Detection of discontinuity in

Foot Control Overheating inside the control unit

Breaking circuit error EEPROM abnormal

Rotor lock error Faulty PC Board.

Refer to Troubleshooting for action taken when the error code shows.

・ Long-time use at excessive load (Overcurrent). ・ Short-circuited power cord. ・ Handpiece trouble. ・ Short-circuited motor winding. ・ Open collet chuck.

Faulty PC Board. No signal from Speed Control Knob .

No signal from Foot Control . Long-time use at excessive load built up heat inside the control unit.

・ Abnormal voltage in the starting or the shut-down circuit. ・ The starting or the shut-down circuit trouble.

Internal memory faulty.

Replacing AC Power Fuse

There is a fuse in AC Power Fuse Box . Push links at the either side of the fuse case and remove to check. If the fuse is blown, replace with a new fuse of same rating. (AC120V: 3.15AH 125V) (AC230V: T800mAH 250V) (Fig. 14)

Caution

Fuse is burned out when a short circuit occurs or when over-voltage flows into the primary current source. If the cause is uncertain, return the product to an authorized NSK's service shop for inspection.

Handling Motor and Handpiece

1. Replacing Tool

a.) Ring type handpiece

To unlock the collet chuck and remove the tool, turn the bur lock ring to OPEN with a click. To tighten the collet chuck and mount the tool, turn the bur lock ring to LOCK with a click. (Fig. 15)

b.) Lever type handpiece

To unlock the collet chuck and remove the tool, make a quarter turn of the chuck control lever to OPEN. To tighten the collet chuck and mount the tool, turn the chuck control lever back to LOCK. (Fig. 16)

Fig.14

LOCK

OPEN

Fig.15

OPEN

LOCK

Fig.16

2. Cleaning and Replacing Collet Chuck

(1) Removal of Chuck

To remove the chuck, open the bur lock ring or the chuck control lever and turn the chuck counterclockwise with the provided spanner wrench. (Fig. 17)

(2) Cleaning of Chuck

Remove and clean the chuck as frequently as possible in the ultrasonic cleaner. Clean at least once a week.

Caution

Neglecting to clean the chuck for a long time is very dangerous because wax, gypsum, etc., accumulate in the chuck and the bur is caught insecurely, causing runout.

(3) Insertion of Chuck

Thinly apply oil before insertion. Open the bur lock ring or the chuck control lever, insert the dummy bur or the bur in use into the chuck, and turn the chuck clockwise by hand until it stops. Then, lock the bur lock ring or the chuck control lever, and the chuck could hold the bur securely. (Fig. 18)

3. Connecting and Disconnecting Motor Cord and Motor

To remove the motor cord, loosen the joint nut at the back of the motor. To connect, align the + marks of the motor and the joint nut. Insert the pins completely and tighten the joint nut. (Fig. 19) *If connecting inversely, the motor will run in the reverse direction.

Loosen

Fig.17

Turn until snug

Fig.18

molded + markings molded + markings

Joint Nut

Fig.19

Page 4

4. Replacing Carbon Brush

To replace carbon brushes, refer to “Replacing Carbon Brush” of the operation manual in the package of new carbon brush.

*Carbon Brush for GX35RM/GX35EM (Pack of 2) : Order No. E023-011S

Transmission Clutch

Cautions in connecting the handpiece and the motor

If the drive shaft of the motor does not engage the drive dog on the handpiece,do not force them to turn. It would break the motor. Turn the handpiece back a few threads, rotate the collet chuck or the tool by hand to engage the drive shaft and the drive dog. Screw them together firmly.

Handpiece Stand

The service tool and the collet chuck can be mounted on the bottom of the handpiece stand.(Fig. 21)

Troubleshooting

Check followings before requesting repair.

Power Cord is disconnected.

LED Speed Display does not show.

Foot Control does not turn on motor.

Error code E0 shows.

Error code E1 shows.

Error code E2 shows.

Error code E3 shows.

Blown fuse.

Faulty Power Switch. Foot Control is loose or disconnected. HAND/FOOT Selector Switch is set to HAND.

The chuck control lever or the bur lock ring is in open position. Check if the tool can be rotated with fingers. If you have another motor and motor cord, use them and check the operation.

Motor rotates at high speed. Motor does not rotate.

Set HAND/FOOT Selector Switch to HAND and check the operation.

Handpiece Motor

Fig.20

Fig.21

Insert Power Cord Securely. Replace a fuse of same rating. If the cause of blown fuse

is unknown, ask for inspection. Ask for repair.

Connect Foot Control cord securely. Set to FOOT.

Lock the chuck control lever or the bur lock ring. If any abnormalities are found during rotation, ask for motor & handpiece repair. If replaced motor operates normally, original motor and motor cord are faulty. Ask for repair.

Ask for control unit repair. Ask for control unit repair.

Speed Control Knob or PC Board might be faulty. Ask for control unit repair.

Action TakenTrouble Probable Cause

Error code E6 shows.

Error code E7 shows.

Error code E8 shows.

Error code E9 shows.

The speed cannot be increased.

Stop operation for approximately 10 minutes in a cool place and check the operation again.

Repeat starting and stop by Power Switch.

Check if the tool can be rotated with fingers.

The max speed can be set with Speed Control Knob in Foot Control operation mode.

There is no problem if it operates normally. Make sure that it is not hot in the surroundings and storage location. If the error code frequently shows, ask for control unit repair.

There is no problem if it operates normally. If the error code still shows, ask for control unit repair.

If the error code still shows, ask for control unit repair. If the tool does not rotate normally, ask for motor

and handpiece repair.

Set Speed Control Knob to the max speed.

Problem Cause Action Taken

No rotation when the chuck control lever or the bur lock ring is locked.

Overheating during rotation.

Vibration and/or noise during rotation.

Heavy tool run-out.

Tool walks out.

Foreign objects inside the ball bearings, or bearings frozen. Ask for repair.

Foreign objects inside the ball bearings could have worn ball bearings.

Worn ball bearings caused by the foreign objects. Bent tools. Replace tool. Debris inside the collet chuck or inside the spindle. Clean inside the collet chuck or the spindle. Worn collet chuck. Worn ball bearings. Ask for repair. Loose collet chuck.

Ask for repair.

Replace collet chuck.

Tighten collet chuck securely. (See Handling Motor and Handpiece.)

Optional Micromotor Handpieces series and spare parts

E205

E053

E054

H214

H063

H068

H178

H156

GX35RM & SCD For Ring Type Handpiece Standard Motor with Straight Motor Cord

GX35M & SCD For Lever Type Handpiece Standard Motor with Straight Motor Cord

GX35EM & SCD E-Type Motor with Straight Motor Cord

UHR-35 Ring Type Handpiece for GX35RM

VH Lever Type Handpiece for GX35M

VH-E E-Type Lever Type Handpiece for GX35EM

VR-E E-Type Ring Type Handpiece for GX35EM

VC45 Angle Type Handpiece for GX35M

Model / DescriptionCat.#Product

E257-012

E257-013

Z246

Carbon BrushE023-011S

CHH2.35 φ2.35 chuck H203-180

GX35SCD Straight Motor Cord

GX35CCD Coiled Motor Cord

Vmax Handpiece Cradle

Specifications are subject to change without notice. 2014.10.20 005