NSK EX-5B Operation Manual

Caution
General Cautions:
• This handpiece is intended for use by dental professionals only.
• Do not use this for the treatment in dental surgery.
• NSK handpieces should not be rebuilt.
• Should the handpiece function abnormally, cease operation immediately
and return the handpiece to the dealer for repair.
Cautions on Operation:
• Do not turn the bur lock ring while the handpiece is rotating.
• Do not rotate the motor when the bur lock ring is at OPEN position, or a
bur is not mounted in the chuck. It may cause the motor/handpiece
disconnection or sudden heat generation.
• This handpiece is designed for (dental) treatment and precision technical
use. Longtime excavation with high torque with thick burs such as 4mm
or greater in diameter may cause a short life to the bur, hard-to-pull-off
bur or bur drop-off, which results in injury.
• Do not allow any impact on the shank. Do not drop the handpiece.
• Check the vibration, noise and overheating outside the patient's oral
cavity before use. If any abnormalities are found, stop using immediately
and contact your dealer.
• Make sure that the bur is securely locked in the chuck before each use.
Improper mounting of the bur could cause the bur to spin out during
rotation and endanger anyone in the vicinity.
• Do not use bent, off-centered, deformed, damaged, nor non-ISO
standard burs.
• Use clean bur. Dirt on the shank may lodge in the chuck in time and
could cause poor concentricity of the bur or poor chucking power.
• Be sure to check on the device and the components periodically.
• Make sure that the product is normal by rotating it with attention to
backlash, vibration, noise, heat generation, when you use it again after a
long time.
• Do not wipe with, or clean or immerse in, high acid water or sterilizing
solutions.

1. Specifications

EX-5B
EX-5BM
EX-6B
EX-6BM
EX-6D
EX-6DM

2. Connecting / disconnecting the motor and the handpiece.

To connect the motor and the handpiece, align the positioning marks of
the motor and the handpiece, and insert straightly. To disconnect, hold the
front part of the motor and the back part of the handpiece, and pull out
straightly.
Caution
Do not connect or disconnect the handpiece until the motor has
completely stopped.
EX-5BM/EX-6BM/EX-6DM
Bur Lock Ring
Nose Cone
Allowable Max.Speed ··· 40,000min
Burs ··· ISO 1797-1 Type2
Gear Ratio ··· 4:1
Accept Doriot Type Head
Bur Lock Ring
Nose Cone
Allowable Max.Speed ··· 40,000min
Burs ··· ISO 1797-1 Type2
Accept Doriot Type Head
Bur Lock Ring
Nose Cone
Allowable Max.Speed ··· 40,000min
Burs ··· ISO 1797-1 Type2
E-TYPE STRAIGHT NOSECONE
EX-5B/EX-6B/EX-6D
OM-H0146E 002
99.5
-1
Sheath
85.1
Sheath
85.1
-1
Sheath
(rpm)
-1
(rpm)
(rpm)
Fig.1