8
to do so, for it may cause equipment failure.
●
When changing the Abrasive Belt, remove dust
and abrasive particles from the Drive Pulley area
by air blow, etc.
a) B-10N, B-20N, B-20NB (Fig.10)
1) Loosen the Decorative Screw and turn the Belt
Cover.
2) Keep pushing the Idle Pulley until the Tension
Bar locks.
3) Change the Abrasive Belt with a new one.
Press the Push Button to release Tension Bar
locking.
4) Turn the Belt Cover to get it back to where it
was. Tighten the Decorative Screw.
Belt Cover
Idle Pulley
Push the Idle Pulley
in the direction
of arrow
Push Button
Decorative Screw
B-10N, B-20N, B-20NB
Fig.10
b) B-30N (Fig.11)
1) Loosen the Decorative Screw and turn the Belt
Cover.
2) Keep pushing the Idle Pulley until the Tension
Bar locks.
3) Change the Abrasive Belt with a new one.
Press the Shoe to release Tension Bar locking.
4) Turn the Belt Cover to get it back to where it
was. Tighten the Decorative Screw.
Decorative Screw
Shoe
Push the Shoe in
the direction
of arrow
Put the Idle Pulley
in the direction
of arrow
Belt Cover
Idle Pulley
Rotation
B-30N
Fig.11
5-6. Offset Bracket (Optional)
The Offset Bracket is designed to utilize the spring
action of Abrasive Belt, facilitating light-duty sanding
applications, such as contoured surface sanding,
deburring, etc.
a) B-10N, B-20N, B-20NB (Fig.12)
You do not need tools for mounting or removal of
the Offset Bracket.
1) Following the same procedure as Abrasive Belt
replacement, remove the Abrasive Belt.
2) Insert the Offset Bracket into the lower part of
the Guard.
3) Install the Abrasive Belt and Belt Cover.
b) B-30N (Fig.13)
1) Following the same procedure as Abrasive Belt
replacement, remove the Abrasive Belt.
2) Remove the Shoe and mount the Offset Bracket
Ass'y. For removal, refer to 5-8 Replacing the
Shoe.
3) Install the Abrasive Belt and Belt Cover.
Insert
Offset Bracket
B-10N, B-20N, B-20NB
Fig.12 Fig.13
5-7. Replacing the Shoe
a) B-10N, B-20N, B-20NB (Fig.14)
Remove the Shoe by loosening Pan Head Screw
and replace the Shoe.
Pan Head Screw
Shoe
B-10N, B-20N, B-20NB
Fig.14
b) B-30N (Fig.15)
Remove the Belt Cover, Loosen 2pcs, of the M6
cross-recessed Pan Head Screws with a screwdriver
and replace the Shoe.
M6 Pan Head Screw
Shoe
M6 Pan Head Screw
B-30N
Fig.15
5-8. Replacing the Tension Bar
a) B-10N, B-20N, B-20NB (Figs.16 and 17)
1) Remove the Abrasive Belt.
Press the Push Button.
The Tension Bar will be unlocked.
2) Turn the Tension Bar 90° and pull it off in the
direction of arrow.
(See Fig.16 for B-10N)
3) Turn the Tension Bar 30° counter-clockwise and
pull it off in the direction of arrow.
(See Fig.17 for B-20N, B-20NB)
4) When reassembling the Tension Bar, assemble
in reverse order.
b) B-30N (Fig.18)
1) Remove the Abrasive Belt, the Belt Cover and
the Shoe.
2) Sufficiently loosen the Key Bolt and pull off the
Idle Pulley Bracket.
3) For mounting, adjust the groove on the Idle
Pulley Bracket to meet the Key Bolt, insert it
into the Guard, put the tip of Key Bolt into the
groove and fix it so as the Idle Pulley Bracket
not to be pulled off.
Pull it in the direction of arrow
Turn 90°
Tension Bar
Push Button
B-10N
Fig.16
Pull it in the direction of arrow
Turn 30°
counter-
clockwise
Tension Bar
Push Button
B-20N, B-20NB
Fig.17
Pull it in the direction of arrow
Bracket Ass y
Key Bolt
B-30N
Fig.18
5-9. Replacing the Idle Pulley
(1) B-10N, B-20N, B-30N (Fig.19)
Using a flatblade screwdriver and a Phillips
Screwdriver (for B-10N) or Hex. Socket Screw
Key (for B-20N, B-30N), loosen the Flat Head
Screw and pull the Idle Pulley Shaft off.
(2) B-20NB (Fig.20)
Using a flatblade screwdriver and a Wrench 10,
loosen the Hex. Nut M6 and remove the Idle
B-30N
B10N_B20N_B20NB_B30N_E.indd 8
10.7.9 9:30:39 PM
