Hardinge SERIES I Manuel du propriétaire
INSTALLATION, OPERATION,
MAINTENANCE, AND PARTS LIST
SERIES I
MILLING MACHINES
Revised: August 29, 2005
Manual No. M-450 Litho in U.S.A.
Part No. M -0009500-0450 June, 2003
TP5260
CHAPTER 2 - OPERATION
HEAD CONTROLS
M-450 2-1
Figure 2.1 - Head Controls Parts Assembly
A
N
O
P
Q
R
C
B
M
G
E
D
F
H
I
J
K
L
TP5285
HIGH-LOW RANGE SWITCH
High-Low Range Switch “A”, Figure 2.2, is a
motor reversing switch. When the attachment is in
direct drive (HIGH SPEED), the motor and spindle
are turning in a clockwise direction as viewed from
the top of machine. When the attachment is in “Back
Gear”(LOWSPEED),thespindlewillrunbackwards
(counter-clockwise) unless the motor direction is
reversed by moving switch to “Low”.
The back gear lever is marked Hi-Lo. This will
indicate the proper switch position. They should be
positioned alike or the spindle will run backwards.
- NOTE -
Spindle should run in clockwise position.
VARIABLE SPEED DIAL
Variable Speed Dial “B”, Figure 2.3, visibly indicates, in windows, the speed range that the
machine is operating in, 60 to 500 low range, 500 to 4200 high range.
2-2 M-450
Figure 2.2 - High-Low Range Switch
A
TP5286
Figure 2.3 - Variable Speed Dial
TP5287
B
SPINDLE BRAKE
Spindle Brake “C”, Figure 2.4, can be moved in
either direction to stop spindle; however, when
locking spindle, brake lever should be moved either
by pulling towards the operator or pushing away
from the operator, then raised. When brake is worn
out it has to be replaced. There are no adjustments
to be made.
- CAUTION -
BE certain that spindle brake is re-
leased before starting the motor.
This is important as the motor can
be damaged if switch is turned on
with brake in locked position.
QUILL FEED SELECTOR
The Quill Feed Selector “D”, Figure 2.5, is used
for selecting the three feeds: .0015”, .003” and .006”
per revolution. It is shifted by pulling knob out and
turning from one position to the other. Feeds are
stamped on cover below indentation hole. Feed is
more readily engaged when spindle is running.
M-450 2-3
Figure 2.4 - Spindle Brake
Lock On
Lock Off
TP5288
C
Figure 2.5 - Quill Feed Selector
D
TP5289
QUILL STOP KNOB
Quill Stop Knob “E”, Figure 2.6, is used to
disengage automatic feed in either direction as well
as the stop point setting working depths.
MICROMETER NUT
Micrometer Nut “F”, Figure 2.6, is used for setting
depths. Each graduation on nut indicates .001” of
depth, it reads directly to scale mounted along the
side of it. Depths may be obtained by setting
micrometer nut in conjunction with quill stop.
FEED REVERSE KNOB
The position of the Feed Reverse Knob “G”,
Figure 2.7, depends upon direction of spindle
rotation. If boring with right hand cutting tools, pull
feed handle towards operator until clutch becomes
engaged.
Neutral position is between forward and reverse
position. It is recommended that the handle be left in
neutral position when not in use.
MANUAL FEED HANDWHEEL
Feed Reverse Knob “G” should be in neutral
position and Feed Control Lever “I”, Figure 2.8
engaged. Clockwise rotation of Manual Feed
Handwheel “H”, Figure 2.7, moves quill down. The
manual feed handwheel and the quill feed handle
may be disengaged by moving them outward about
.125”.
2-4 M-450
Figure 2.6 - Quill Stop Knob and
Micrometer Nut
E
F
TP5290
Figure 2.7 - Feed Reverse Knob and
Manual Feed Handwheel
Neutral
G
Down
TP5291
Up
H
FEED CONTROL LEVER
Feed Control Lever “I”, Figure 2.8, engages
overload clutch on pinion shaft when positioned left
and will stay engaged until either quill stop comes in
contact with micrometer adjusting nut, forcing feed
control lever to drop out automatically, or release
manually by engaging lever to right.
FEED CONTROL OVERLOAD CLUTCH
The Feed Control Overload Clutch is set at the
factory to hold up to 200 lbs of down pressure on
quill, which will accommodate drills up to .375”
diameter in mild tool steel.
- CAUTION -
This clutch should not be tampered
with in the field.
- NOTE -
The feed control lever must be en-
gaged in order to use manual feed
controls. the quill feed handle and
manual feed handwheel may be
removed when not in use.
QUILL
Quill “J”, Figure 2.9, contains the spindle
assembly and can be raised or lowered by using the
quill feed handle “M”, Figure 2.10.
SPINDLE
Spindle “K”, Figure 2.9, performs the actual
rotation and also retains the machine tooling.
QUILL LOCK
Quill Lock “L”, Figure 2.9, is a friction lock for use
when quill is in a stationary position such as a milling
operation. It is recommended that this lock be used
whenever quill movement is not desired.
M-450 2-5
Figure 2.8 - Feed Control Lever and
Feed Control Overload Clutch
I
Engage
Disengage
TP5292
Figure 2.9 - Quill, Spindle and
Quill Lock
J
L
TP5293
K
QUILL FEED HANDLE
Quill Feed Handle “M”, Figure 2.10, is used to
raise and lower the quill manually. It is generally
recommended that handle be engaged when using
the power feed. It may be removed by simply pulling
handle off.
POWER FEED TRANSMISSION ENGAGEMENT
CRANK
Power Feed Transmission Engagement Crank
“N”, Figure 2.11, engages power feed worm gear.
When lever is in right hand hole, the power feed
worm gear is engaged.
To engage worm gear, pull knob out and crank
handle in clockwise or down direction and move to
opposite position (see Figure 2.12).
- NOTE -
Crank should be rotated counter-clock-
wise to engage power quill feed. Crank
should be rotated clockwise to disen-
gage.
- CAUTION -
Power feed worm gear may be en-
gaged when spindle is rotating,
however, it should be engaged
gently to avoid damage to worm
gear. The worm gear may be disen-
gaged at any time. do not use power
feed at speeds above 3000 RPM.
2-6 M-450
Figure 2.10 - Quill Feed Handle
M
TP5294
Figure 2.11 - Power Feed Transmission
Engagement Crank
N
TP5295
Figure 2.12 - Worm Gear Disengagement
Disengaged Engaged
Clockwise Counter-
Clockwise
TP5296
HI-NEUTRAL-LO LEVER
The Hi-Neutral-Lo Lever “O”, Figure 2.13, is used to put the attachment into either back gear or
direct drive. Rotate the spindle by hand to facilitate meshing of clutch or gears.
Neutral is provided to permit free spindle rotation for indicating and setup work.
In the high speed position (direct drive) the spindle is driven by tapered clutch teeth. If the clutch is
not meshed tightly, clutch rattle will be heard. This can be corrected by loosening the two securing
screws in lever while in high speed position. The clutch spring will automatically adjust the clutch.
Tighten the two securing crews in lever.
- CAUTION -
Do not shift hi-lo lever while motor is running.
M-450 2-7
Figure 2.13 - Hi-Neutral-Lo Lever
Neutral
High Low
Securing Screws
TP5297
O
SPEED CHANGE HANDWHEEL
- CAUTION -
DO NOT attempt to change spindle RPM unless the motor is running. Dial
speeds will only be approximate. Belt wear will cause a slight variation in
speeds from what is indicated on the dial.
Spindlespeedsareadjustedby turningSpeedChange Handwheel“P”,Figure 2.14,onthe frontof
the belt housing. There are two ranges: 60 to 500 and 500 to 4200.
To obtain 60 to 500 (low range):
1. Hold the Hi-Neutral-Lo lever (right rear
side of the attachment) so the gears are
clear of one another.
2. rotate the spindle nose by hand until the
gears line up, then move the Hi-Neu-
tral-Lo lever to the “Lo” position (back
gear).
3. Use the low range on the drum switch to
engage the back gears.
- CAUTION -
If the back gears do not mesh, do
not force the lever.
To obtain 500 to 4200 (high range):
1. Hold the Hi-Neutral-Lo lever (right rear
side of the attachment) so the gears are
clear of one another.
2. rotate the spindle nose by hand until the
gears line up, then move the Hi-Neu-
tral-Lo lever to the “Hi” position.
3. Set the drum switch to high range.
- CAUTION -
Try to avoid shifting the hi-lo lever when the feed worm is engaged.
2-8 M-450
Figure 2.14 - Speed Change Handwheel
- CAUTION -
Do Not Move
Unless Motor is
Running
Increase
Speed Decrease
Speed
P
TP5298
MOTOR
Motor “Q”, Figure 2.15, has the following specifications:
•2 HP variable speed (with 2J head)
•3 HP 30 minute duty rate
DRAWBAR
When tightening or loosening the Drawbar “R”, Figure 2.15, it is necessary to lock the spindle. To
accomplish this, use the spindle brake which is located on the left side of the belt housing, pulling
towardstheoperator orpushingawayfromtheoperatoruntil itbinds,thenraisethequillfeed handle.
Drawbar has 7/16”-20 right hand thread and should be tightened by hand with normal amount of
pressure using wrench furnished with machine. To loosen collet, back off drawbar and if collet does
not open immediately, give knob on top of drawbar a slight tap. Spindle has non-sticking taper and
collet should release readily.
M-450 2-9
Figure 2.15 - Motor and Drawbar
TP5299
Q
R
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