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Palmgren Operating Manual & Parts List
ASSEMBLY (CONTINUED)
MOUNT TABLE HANDWHEELS
Refer to Figure 8.
Thread table handles (Ref. No. 11) into table handwheels (Ref. No.
12). Secure handwheels to left and right ends of longitudinal lead
screw (Ref. No. 35) using set screws (Ref. No. 30).
INSTALL DRAWBAR AND ARBOR
Refer to Figures 6 and 7.
Insert draw bar (Figure 7, Ref. No. 52) into top of spindle. Be sure
that arbor and spindle taper are clean of all dirt, metal chips, oil,
etc. Insert chuck or face mill arbor (Figure 6, Ref. Nos. 52 and 55)
into spindle and rotate arbor to engage spindle key in arbor key-
way. Push arbor into spindle and thread draw bar into end of arbor.
Use a wrench to tighten draw bar securely.
I I N N S S T T A A L L L L A A T T I I O O N N
POWER SOURCE
Refer to Figure 3, page 4.
The Palmgren mill drill is prewired for 230 volts, 60 Hz, single-phase
power. A qualified electrician should wire a 240 volt, 20 AMP, 3-
prong plug (not included) to mill drill line cord. Use only NEMA rec-
ommended plugs, connectors and receptacles rated on 20 amps
minimum.
To use machine with a 115 volt, 60Hz, single-phase power supply:
WARNING:
All electrical connections must be performed by a
qualified electrician.
• Change motor wiring to 115 volts. Refer to motor nameplate
for wiring schematic.
• Change setting of voltage select switch (Figure 9, Ref. No. 36) to
110 volts.
• Attach a 125 volt, 20 or 30 Amp, 3-prong plug (not included) to
the mill drill line cord. Use only NEMA recommended plugs,
connectors and receptacles rated on 20 amps minimum.
PE
L1 L2
220V
110V
220V
O.L.
O.L.
10A
20A
0V
110V
KM
M
Figure 3 – Wiring Schematic
8
3
SB2
QS1
3
5
SB3
SB1
2
OF2
(3A)
3
110V
24V
220V
0
0
0
Refer to Figures 4, 6, 7 and 8.
ADJUSTING HEAD
Refer to Figures 6 and 8.
Loosen hex nut (Figure 6, Ref. No. 24) with wrench (Figure 6, Ref. No.
23). Head can be rotated 360° around column by hand. Be sure rack
(Figure 8, Ref. No. 6) does not bind. Raise or lower head by turning
head adjusting crank (Figure 6, Ref. No. 34). Be sure to tighten both
hex nuts after adjusting head.
CHANGING SPEED
Palmgren mill drill is a 12-speed machine. Spindle speeds are
determined by location of V-belts on three pulleys.
Always push stop button and disconnect power from machine
before changing speeds.
Open cover access door. Pulley cover top can be tilted back for
speed changes by sliding latches outward. Be sure to close cover
when finished.
Loosen handle (Ref. No. 26) and push motor mount plate (Ref. No.
33) toward head. Tighten handle.
Loosen transmitting pulley base (Ref. No. 41) by loosening hex
head bolts (Ref. No. 46). Place V-belts on pulleys for desired speed
as shown in speed chart (See Figure 4, page 5).
Tension front V-belt (Ref. No. 53) by pushing middle pulley away
from spindle pulley. Tighten hex head bolts.
Loosen handle and push motor mount plate away from head to
tension rear V-belt. Tighten handle. Check belt tension and adjust if
necessary. Close pulley cover.
Secure pulley cover latches.
Spindle RPM
120
90
230
285
370
440
KM
770
1040
4
1220
4
1450
1800
2500
SPINDLE OPERATION
Refer to Figures 6 and 7.
Palmgren mill drill is equipped with spindle fine feed handwheel
and spindle depth lockdown handle.
Engage fine feed handwheel (Figure 6, Ref. No. 2) by rotating pin-
ion knob clockwise (Figure 6, Ref. No. 17) until tight. Disengage fine
feed by loosening pinion knob.
Spindle depth can be locked into position by tightening quill lock
handle (Figure 7, Ref. No. 23). Bring spindle down to desired posi-
tion and tighten quill lock handle to hold spindle position.
4
80161 & 70104
O O P P E E R R A A T T I I O O N N
Belt Location
A1-4Z
B2-4Z
A1-3Y
C3-4Z
B2-3Y
A1-2X
D4-3Y
C3-2X
B2-1W
D4-2X
C3-1W
D4-1W
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