Spindle, Speed chart, Spindle speeds – Sears 149.213340 User Manual
Page 9: Changing speeds, Belt tension adjustment, Spindle motor
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3.
Check operation of Return Spring for proper tension and
full return.
4
Nuts must be tightened before use. Be very careful; the
nuts hold Spring Assembly in position and should
NOT
be
tightened flush against Spring Assembly A small gap is
necessary for proper operation of Spindle Housing Lock
the two nuts together using separate wrenches and make
sure Spindle Housing moves freely up and down.
Spindle Speeds
Your Radial Drill Press has a 1725 RPM motor with five spin
dle speeds available through a pulley/belt drive The various
spindle speeds are required for different materials, different
types and sizes of drills, and different cutting tools
Refer to the V-beit placement illustration on this page for the
five available spindle speeds.. Maximum speed is obtained
when V-beit is on largest step of pulley at motor end and
smallest step of pulley at spindle end
Changing Speeds
A
WARNING;
D(
sconnect
R
adial
D
rill
P
ress
from
POWER SOURCE BEFORE CHANGING SPEEDS.
1. Open Pulley Cover (REF 48)
2.. Position V-belt (REF 73) on desired steps of Spindle
Pulley (REF 19) and Motor Pulley (REF 71) When posi
tioning V-belt, always start by moving the end of the belt
that will go from a larger step to a smaller step first,
3 A chart (REF 51) of drill speeds and pulley steps is pro
vided below and inside Pulley Cover for convenience.
Belt Tension Adjustment
NOTE: The Radial Drill Press is shipped with the V-belt
installed.
Check
V-belt
adjustment
for
proper
tension
before use.
1. Open Pulley Cover (REF 48)
2.
Loosen belt tension Butterfly Set Screw (REF 36) located
on right side of Cover Mount (REF 75)
3.
Select speed for drilling operation by referring to Speed
Chart (REF 51) inside Pulley Cover or on bottom of page.
Move V-belt to correct position for desired speed.
4. Push motor towards rear of machine until V-belt sides are
straight between pulleys.
SPINDLE
SPEED CHART
3600 RPM
_ 2610 RPM
1600 RPM
tiSO RPM
540 RPM
SPINDLE
MOTOR
MATERIAL SPEED CHART
FOn VS£ iVITH fiiCM SPEED nViSl DIVLLS ONLY
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Material
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.
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