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Summary Manual
Mark V Model 520
Safety
WARNING
Before performing disc sanding operations:
•
READ, UNDERSTAND, and FOLLOW the
SAFETY section, especially for the disc sander
mode.
•
Complete ALL the Assembly and Alignment
procedures.
•
Secure locks.
Disc Sanding Speeds
NOTE
The above mentioned speeds are reccommended
speeds.
Before you begin any disc sanding operation,
know the correct speed at which to set the speed
dial. The correct speed is determined by the
operation and the type of material you’re sand-
ing. To determine the right speed for the job, refer
to the Disc Sanding Speed Chart.
General Sanding
Position the carriage so that the table is no farther
than 1/16" away from the disc (if you’re not using
the quill feed), or 1/2" (if you are using the quill
feed). Maintain these clearances during sanding.
Position the table surface near the center of the
disc. Maintain these clearances during sanding.
Always sand on the downward motion side of the
disc with the disc either through the insert or next
to the table.
End-Grain Sanding
1. Mount the miter gauge in the left slot and
position it so that it will guide the stock against
the downward side of the disc. Then lock the
gauge in the slot. Turn on and set the Mark V
speed.
NOTE
When end-grain sanding, set the speed a little slower
than you would for other types of sanding. End
grains "burn" easily.
2. If you’re feeding the stock into the disc, place
the stock against the miter gauge and feed it
toward the disc until it contacts the abrasive.
Hold it there for a few seconds, back it off, then
feed it forward again. See Figure C-18.
Figure C-18
Disc Sanding Operations
DISC SANDING SPEED CHART
Grit
Hardwood
Softwood
Coarse (60#)
D (1050 rpm)
E (1150 rpm)
Medium (80#)
F (1300 rpm)
G (1450 rpm)
Fine (100#)
G (1450 rpm)
H (1600 rpm)
Grinding or Sharpening Metal Tools — Slow (700 rpm)
`3. If you’re using the quill feed, advance the disc
until it contacts the stock. Hold it there for a
few seconds, back it off, and feed it forward
again. See Figure C-19.
Figure C-19