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Spring
Assembly /_ ))_
Feed Shaf< _ )
Lock'Nuts
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
PulleyCover
\
Butterfly Set Screw
spindle speeds are required for different materials, different
types and sizes of drills, and different cutting tools
Refer to the V-belt placement illustration on this page fo_ the
five available spindle speeds Maximum speed is obtained
when V-belt is on largest step of pulley at motor end and
smallest step of pulley at spindle end
Changing Speeds
_ WARNING: DISCONNECT RADIAL DRILL PRESS 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
SPnNDLE SPEED CHART
SPINDLE MOTOR
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