7
when you have an optional 6 mm wide Bracket 6
Assembly (applicable to B-10N only).
(2) B-20NB
Loosen the Hex. Cap Screw, Fig.9 with a Hex.
Socket Screw Key.
Turn the Hex. Socket Head Cap Screw clockwise
or counterclockwise with the accessory Hex.
Socket Screw Key in order to make the abrasive
belt run on the center of the idle pulley.
Loosen Adjusting Screw B
Adjusting Screw B
Adjusting Screw A
Loosen Adjusting Screw A
B-10N, B-20N, B-30N
Belt movement
when turned
clockwise
Hex. Socket Head
Cap Screw
Belt movement
when turned
counterclockwise
Clockwise
turn
Counterclockwise
turn
B-20NB
Fig.9
5-4. Sanding Operation
Warning
●
Do not press the Abrasive Belt too hard upon the
workpiece. If you do so, the Abrasive Belt may
break.
●
When using a non-woven Belt, do not use the
Offset Bracket. If you do so, the Belt may come
Off , causing personal injury.
For deburring operation, an Offset Bracket (optional)
is to be used.
In this application, the Abrasive Belt will be brought
into light contact with the workpiece somewhere in
between the Idle Pulley and Offset Bracket.
For Sanding operation, the Offset Bracket will be
removed and a Shoe will be used.
The Abrasive Belt will be brought into light contact with
the workpiece where the Shoe extends.
5-5. Changing the Abrasive Belt
Caution
●
Before servicing, turn the Throttle Lever OFF
and disconnect the hose from the Belt Sander.
●
When the Abrasive Belt has an arrow marking on
its inner face, see to it that you set it to the same
direction in which the Belt Sander turns (there is
a marking on the Guard), as well. It is dangerous
to mount it wrong way for the Abrasive Belt may
break prematurely.
●
Do not press the Push Button without a Abrasive
Belt mounted unless it is absolutely necessary
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)
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