LEMAN PON400 Manual De Instrucciones página 73

During use, the sanding strip abrasive may become clogged with sawdust, causing
insufficient sanding, marring of workpiece, and burning of the workpiece. With the
machine off and unplugged from its power source, occasionally check the condition of
the abrasive strip on the sanding drum for clogging. This should be done often,
dspecially with resinous woods, because material can become os packed into the
abrasive that it cannot be removed, and the abrasive strip must be replaced.
1. Heed all warnings and use extreme caution when performing this cleaning operation.
2. Set the conveyor belt speed control knob to lowest feed setting. Avoid contact with
conveyor feed belt.
3. Open the protective dust cover to expose the sanding drum and abrasive strip.
4. Use a long belt cleaning stick to distance your hands from the rotating drum.
5. Turn on the machine, grip the belt cleaning stick with two hands, rest the cleaning
stick on the casting which houses the sanding drum. Gently lower the cleaning stick
onto the rotating drum, moving the cleaning stick from side to side to remove the
impacted sawdust.
6. When cleaning is completed, remove the stick, turn off the machine, and close and
latch the protective dust cover.
CONVEYOR FEED BELT REPLACEMENT
Common causes which require replacement of the conveyor feed belt are: normal wear
and tear, inadvertent contact with the sanding drum abrasive during operation, teats
caused by mis-tracking of the conveyor feed belt, or excessive build-up of
non-removable film.
The following steps describe how to remove and replace the conveyor feed belt when
necessary.
1. Disconnect the machine from the power source.
2. Using the Height Adjustment Handle, raise the sanding drum to its highest position
(roughly 3" above the conveyor belt table).
3. Using a phillips type screwdriver, remove the 2 screws and star washers securing the
front nip guard to the variable speed control box. Then remove the front nip guard by
sliding it to the left and off the outboard drive roller bushing.
4. Using the supplied 6 mm herx wrench key, remove both conveyor table mounting
bolts on the outboard open side of the wide drum sander.
5. Reduce tension on the conveyor feed belt by rotating both the inboard and outboard
２２
EN
MS3140 DRUM SANDER