27
Sanding Operations
4375 Series Models Platen
The platen is used only for finishing sanding.
Complete the following steps for finish sanding
on the Model 4375 with the platen:
1. Locate the platen adjustment system. It is
located inside the belt loading door. See Fig.
51.
2. Locate the spring loaded adjusting knob. See
Fig. 51. The spring loaded adjusting knob can
be positioned in any of a series of holes in a
half circle formation. See Fig. 51.
3. If the spring loaded adjusting knob is up (as
shown in Fig. 51), the platen is up. If the
adjusting knob is down, the platen is down.
See Fig. 51.
4. The adjustment holes represent various
positions for the platen. The adjustment holes
enable the platen to have varying degrees of
pressure against the material being sanded.
The platen comes into contact with the
abrasive belt around the middle hole (3:00
position) adjustment. The platen is adjustable
up and down a full 1/8”.
5. Adjust the platen according to the desired
position.
6. Feed your material into the machine keeping
an eye on the load meter. The load meter
gauge measures the percentage of load on the
motor. The machine should not be run when
the pointer on the load meter is into the red
band area (over 100%). You can reduce the
load by slowing down the conveyor table
speed, lowering the table, or raising or
removing the platen
7. Generally, table height adjustment is not
recommended when the platen is in use.
Sanding pressure should be solely controlled
through the platen adjustment system.
Spring Loaded
Adjusting Knob
Platen
Adjustment
System
8. After completing the finish sanding, adjustthe
spring loaded adjustment knob back to the
12 o’clock position to start using your contact
roller again. See Fig. 51.
Figure 51: Platen Adjustment System -
43”x75”
Only
