Cincinnati 1a lo User manual

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HOD
PARTS LIST CATALOG
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[CINCINNATI:
No. 1 Tooimaster
MILLING MACHINE
Identification No. 6J-DK
Publication No. M-2109
WHEN ORDERING REPAIR PARTS
1. Give complete Serial
Number of Machine.
2. Give Part Number
and Name.
3. Give Amount
Required.
UNLESS THE ABOVE DATA IS INCLUDED WE CANNOT FILL YOU R ORDE R
THE CINCINNATI MILLING MACHINE CO
CINCINNATI 9, OHIO, U.S A.

SERVICE MANUAL AND PARTS LIST CATALOG
TABLE OF CONTENTS
This catalog to be used only for machines whose serial number begins with 6J.
FUNCTIONAL DIAGRAMS
DIMENSIONAL DRAWING
CONVERSION CHART (Inches to M/M)
LUBRICATION DIAGRAM AND SPECIFICATIONS.
CMMCo. RECOMMENDED LUBRICANTS ......
INSTALLATION INSTRUCTIONS
ADJUSTMENTS
To Adjust Gibs
Drive Belts: Styles 1-A, 1-B. ...
Drive Belt: Style 1-E
" " Backlash Eliminator
" Quill Powerfeed Clutch: Style 1-B
" " Shaping Attachment Drive Belt ...
" " Shaping Attachment Gib
DISMANTLING INSTRUCTIONS
To Remove V-Belt Housing
Styles 1-A, 1-B
Style 1-D
Style 1-E
Splined Spindle Sleeve: Styles 1-A, 1-B. . . . . . , . .
Drive Spindle Assembly: Style 1-A
: Style 1-B
: Styles 1-D, 1-E
Spindle Housing with Spindle: Styles 1-A, 1-B ....
" : Styles 1-D, 1-E ... .
Spiral Gear Shaft: Style 1-B
Transmission Shaft: Style 1-B
Speed Change Assembly: Style 1-D
and Dismantle Powerfeed Housing: Styles 1-D, 1-E.
Overarm and Turret: Styles 1-A, 1-B, 1-D, 1-E . .
Overarm (Heavy Duty): Style 1-C.
and Dismantle Overarm Gear Housing: Style 1-C . .
Page
4, 5
6
7
8, 9
10
11
12
12
12
12
12
12
12
13
13
13
13
13
14
15
15
16
16
16
17
17
18
18
18

CINCINNATI NO. 1 TOOLMASTER MILLING MACHINE
To Remove Single Swivel Housing Spindle and Drive — Without Hand Feed: Style 1-C
" " Single Swivel Housing Spindle and Drive — With Hand Feed: Style 1-C . .
" " and Dismantle Double Swivel Housing: Style 1-C
Table
" " Table Leadscrew
" " Table Powerfeed Housing
To Dismantle Table Powerfeed Housing
To Remove Standard Saddle
" " Crossfeed Screw
" " and Dismantle Saddle When Table Is Equipped With Powerfeed
" " " " Saddle Powerfeed Housing
Elevating Crank Shaft
" " Elevating Screw and Pedestal
Knee
To Dismantle Shaping Attachment
To Install Table or Saddle Powerfeed Motor
KEY NUMBER INDEX
HOW TO ORDER REPAIR PARTS
HIGH SPEED HEAD AND OVERARM (Unit 6JJR)....
HEAVY DUTY HEAD AND OVERARM (Unit 6JJS) ...
VARI-SPEED HEAD AND OVERARM (Unit 6JKV). . . .
SADDLE-TABLE (Unit 6JH)
KNEE (Unit 6JK)
COLUMN (Unit 6JC)
COOLANT PUMP AND PIPING (Unit 6JP)
PRECISION MEASURING EQUIPMENT (Unit 6JJL). . .
SHAPING ATTACHMENT (Unit 6JHF)
PLAIN, SWIVEL AND UNIVERSAL VISES (Unit 6JKA)
INDEX HEAD AND TAILSTOCK (Unit 6JKA)
MACHINE INSTRUCTION PLATES
The design and specifications of these machines are subject to change without notice.
Page
18
19
19
19
20
20
21
21
22
22
22
23
23
24
24
24
25-26
27
29-41
43-53
55-67
69-77
79-89
91
91
93-95
97-99
101
103
105
Publication No. M-2109

SERVICE MANUAL AND PARTS LIST CATALOG
SPINDLE
DRIVE
MOTOR
TURRET SWIVEL
LOCKING NUTS
OVERARM
POSITIONING
PINION
SERIAL NUMBER
PUSH
BUTTON
PANEL
TABLE TRAVERSE
HANDWHEEL
KNEE CLAMPS
SADDLE
CLAMP
FUNCTIONAL DIAGRAM
SPINDLE MOTOR CONTROL
HEAVY DUTY OVERARM
(UNIT6JJS)
SPINDLE SPEED SHIFT
LEVERS
DOUBLE SWIVEL
HOUSING
Figure 4A
Style 1C Toolmaster Milling
Machine with Heavy Duty Overarm
and Double Swivel Housing
PINDLE
START-STOP
SWITCH
HIGH SPEED HEAD
AND OVERARM
(UNIT6JJR)
QUILL CLAMP
HEAD ANGLE
ADJUSTMENT
COLUMN(UNIT6JC)
TABLE (UNIT 6JH)
TABLE CLAMP
CROSSFEED
KNEE(UNIT6JK)
ELEVATING
CRANK
Figure 4B
Style IB Toolmaster Milling Machine with Power Feed
to Quill, Manual Feed to Saddle and Table

CINCINNATI NO. 1 TOOLMASTER MILLING MACHINE
FUNCTIONAL DIAGRAM
Figure 5A
Style IE Toolmaster
Milling Machine with
Power Feed to Quill
DRAW-IN BOLT
LOCK KNOB
SPINDLE START-STOP
SWITCH
ID HEAD UNIT 6JKV
HI-LOW SPEED
CHANGE LEVER
POWER FEED
ENGAGING LEVER
QUILL FEED HANDWHEEL-
QUILL CLAMP
POWER FEED TO
TABLE UNIT 6JH
KNEE UNIT 6 JK
DRAW-IN BOLT
SPINDLE START-STOP
SWITCH
SPINDLE BRAKE
IE HEAD-UNIT 6JKV
QUILL FEED HANDWHEEL
QUILL CLAMP
Figure 5B
Style ID Toolmaster Milling Machine with
Power Feed to Quill, Saddle and Table
Hi: .\
SPEED CHANGE DIAL
SPEED CHANGE CRANK
SPINDLE BRAKE
MICROMETER QUILL STOP
QUILL HAND FEED LEVER
PRECISION MEASURING
DEVICE
SADDLE-TABLE UNIT 6JH
COLUMN UNIT 6 JC
POWER FEED TO
SADDLE UNIT 6JK
Publication No. M-2109

SERVICE MANUAL AND PARTS LIST CATALOG
DIMENSIONAL DRAWING
Machine
Max.
Min. Max.
B
Min.
C
Max.
3
Min.
J
Max.
S
Min.
Max. Min.
GH
Max.
Max.
I
Min.
-
IB
1C
ID
IE
22-1/4
25-3/8
23-3/4
23-3/4
4-3/4
5-3/8
6-1/4
6-1/4
16-1/4
16-1/4
16-1/4
16-1/4
6-1/4
6-1/4
6-1/4
6-1/4
3-
3
5
5
1/2
20-1/8
22-5/8
19-3/4
19-3/4
3-1/8
5-5/8
2-3/4
2-3/4
46-3/4
46-3/4
46-3/4
46-3/4
29-3/4
29-3/4
29-3/4
29-3/4
27-3/4
27-3/4
27-3/4
27-3/4
10-3/4
10-3/4
10-3/4
10-3/4
74-1/2
73-1/2
78-1/2
78-1/2
17
20
17
17
32
32
32
32
10
10
10
10
* 1A has same dimen.
ions as IE <•»
NO. 40 STD. TAPER
(ID a IE MACHINE)
FLOOR
PLAN
TABLE a TEE SLOT
SPINDLE NOSE
ASSEMBLY AND ADAPTER
( IB MACHINE)
Ar
23^
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\
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IO
ID
r
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1
Jx^J^i
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NO. 7 b. a s.
<5jMIN- J
25 1 MAX.
HEAVY DUTY
OVERARM
a
SPINDLE NOSE
1IC MACHINE)
2.625
SHAPING
ATTACHMENT
J.-13NC THRD'S.
FACE OF COLUMN
Machine
X
With
Shaping
Attach.
X
Without
Shaping
Attach.
With S
Atta
Max.
Taping
ch.
Min.
IB
1C
ID
IE
33-1/2
37-1/8
33-1/2
33-1/2
37-1/8
38-1/4
39-3/4
39-3/4
24
28-1/2
24
24
15
15
15
15

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SERVICE MANUAL AND PARTS LIST CATALOG
LUBRICATION DIAGRAMS
OIL LEVEL GAGE
FOR STATION |6
IC MACHINE
OIL LEVEL GAGE
FOR STATION |4
SHAPING ATTACHMENT
16
POWER FEED TO TABLE AND SADDLE
OIL LEVEL GAGE
FOR STATION 4
ONE SHOT PLUNGER
FOR STATION 4
OIL LEVEL GAGE
FOR STATION |5
Publication No. M-2109

CINCINNATI NO. 1 TOOLMASTER MILLING MACHINE
LUBRICATION INSTRUCTIONS and SPECIFICATIONS
(See diagrams opposite page)
Thoroughly oil all moving parts as they are installed, then lubricate all principal points as listed below
before starting motor. Periodic and thorough lubrication with correct lubricant, as specified, will help to
maintain the long life and accuracy built into each machine. The intervals listed are based on a normal eight
hour day.
PURCHASE LUBRICANTS FROM RELIABLE DEALERS
Interval
Twice Daily
(4 hours)
When Used
Daily
(8 hours)
Station No. and Part Lubricated
11, 13
14
15
16
17
18
6, 7
Shaping Attachment Ways
Pinion Shaft
Quill Bearing
Power Feed Drive Gears
Saddle-Table and Saddle-
Knee Ways, Table and
Cross Nut and Lead Screw
Knee-Column Ways, Ele
vating Screw and Gears.
(Some machines-plunger
is on right side „)
Gear Box
Shaping Attachment Drive
Table Power Feed Gear
Housing
Saddle Power Feed Gear
Housing
Vari-Speed Pulley As
sembly. (1-D only)
Power Feed to Quill
(1-D, 1-E)
Spindle Bearings
Lubrication Instructions
Fill oiler cups or button oilers
Cap. 1 Pt. Check level daily.
Maintain level at
height of opening of 4, above low
limit of 5.
Cap. 1/4 Gal.
Cap. 1-1/2 Gal.
Cap. 1-3/4 Pts.
Cap. 1/2 Gal.
Cap. 1/2 Gal.
3 TIMES DAILY
Pull out each
plunger and allow it to return itself.
Check level daily.
Fill to high limit
when oil reaches
low limit.
Grease lightly with spindle speed
set to 1400 rpm or less. Run at
this speed for one minute.
Cap. 1 Pt.
Check oil level daily while machine
is running. Add oil as needed.
One-half turn only, of grease cup,
Refill as required.
Lubricant Specifications
CMMCo. No. P-54
Rust and oxidation in
hibited oil. Viscosity
300-320 S. U. S. at
100°F.
Follow recommenda
tion of Vari-Speed
pulley manufacturer.
CMMCo. No. P-63.
Lead napthenate EP
oil. Viscosity 300-
360 S.U.S. at 100° F.
CMMCo. No. P-64
Lithium base grease
having a consistency
of N. L. G. I. No. 2.
(continued on next page)
Coolant reservoir capacity is approximately 4-1/2 gals. (17 liters).
See page 10 for various oil company recommended lubricants that comply with CMMCo. specifications.
9
Publication No. M-2109

SERVICE MANUAL AND PARTS LIST CATALOG
LUBRICATION INSTRUCTIONS and SPECIFICATIONS
(See diagrams, page 8)
Interval
Station No. and Part Lubricated
Lubrication Instructions
Lubricant Specifications
Weekly
12
Shaping Attachment Pit
man Arm Bearings
2 to 3 strokes from a hand gun.
(Approx. 1/2 oz.)
CMMCo. No. P-64.
(See page 9.)
(48 hours)
10*
Quill—Power Feed (1A,
IB)
Cap. 1 Pt.
CMMCo. No. P-54.
(See page 9.)
Periodically
9
Motor Bearings
Lubricate all motors only according to motor manufactur
er's recommendations. DO NOT OVERLUBRICATE.
*Tilt spindle housing 30° toward right to fill or check oil level. At 30° angle, the oil level should be even
with hole. To drain, rotate housing 70°—80° to left. (1-A, 1-B)
CMMCo RECOMMENDED LUBRICANTS
The following lubricants have been tested by The Cincinnati Milling Machine Co.
recommended for use in their machines.
and are
P-54
P-63
P-64
British-American Oil Co., Ltd. - Britex R & O 55: Cities Service Oil Co. -
Pacemaker #3; Cities Service Oil Co. -Pacemaker #300-T; D-X Sunray Oil Co. -
DX-Cherokee Oil "H" (R &O);
Esso Standard Oil Co. - Nuto 50; Gulf Oil Corp. -
Gulfcrest 55 or Gulf Harmony 53; Midwest Oil Co. - Ace-Lube Heavy Medium;
Pennzoil Co. (Calif.) - Zoil Hydraulic Oil Heavy; Pennzoil Co. (Penn.) -Turbine
Oil Heavy-Medium; Pure Oil Co. - Puroturbine Heavy Medium;
Tellus 33; Socony-Mobil Oil Co. - D. T. E. Heavy-Medium;
(Calif.) -Chevron O. C. Turbine Oil 15; Standard Oil Co. (Ind
trial Oil #31; Standard Oil Co. (Ohio) - Sohivis 52; Sun Oil
Shell Oil Co. -
Standard Oil Co.
) - Stanoil Indus-
Co. - Sunvis 931;
Texas Co. - Regal Oil PC R & O; Tidewater Assoc. Oil Co. - Tycol Aturbrio 60.
Esso Standard Oil Co. - Pen-O-Led E. P. 1; Gulf Oil Corp. -Gulf E. P. Lubricant
55; Shell Oil Co. - Macoma 33; Socony-Mobil Oil Co. - Compound "AA"; Stan
dard Oil Co. (Ohio) - Facto-lube 1; Sun Oil Co. - Sunep 50; Texas Co. - Meropa
Lubricant 1.
Cities Service Oil Co. - Trojan H-2;
N. Y. and N. J. Lubricant Co. - G-60;
Co. - Alvania 2; Socony-Mobil Oil Co. - Mobilux 2
Stanolith 57; Standard Oil Co. (Ohio) - Sohitran 2;
Texas Co. - Multifak 2.
10 =
Gulf Oil Corp. - Gulf-Crown Grease 2;
Pure Oil Co. - H.T. Grease 2; Shell Oil
Standard Oil Co. (Ind.) -
Sun Oil Co. - Prestige 42;

CINCINNATI NO. 1 TOOLMASTER MILLING MACHINE
INSTALLATION INSTRUCTIONS
Foundations
A special foundation is not required for the No. 1
Toolmaster Milling Machine. Any substantial floor,
wood or concrete, fairly flat and sufficiently sturdy
to hold machines weight (approximately 2500 pounds
will be satisfactory. If installed on an upper floor
place directly over a main beam. Select a zone
free from extraneous vibration.
FIGURE 11A
Lifting Machine
Lifting Machine (Figure 11A)
The machine may be lifted by a crane with a rope
or cable sling around the turret. Have saddle in
inner position and overarm fully retracted and
clamped before lifting. If a wire cable is used to
lift machine, protect any surface contacted by cable
with a leather belt or wood blocks.
Bolting Machine to Floor (Figure TIB)
If you wish to bolt machine to floor notice that cen
ter distances of bolt holes given on "Dimensional
Drawing" are approximated. If the floor is con
crete, drill the bolt holes about 6" in diameter.
Place a large washer on head of hold down bolt,
followed by a short length of 1-1/2"pipe, pass bolts
up through holes in base and secure with a nut at
top. Fill each pipe with dry sand. Lower machine
into place but have it resting on two l"thick boards.
(Tops of pipes around hold down bolts should be
flush with floor.) Fill holes around pipes with quick
drying cement that is thin enough to flow easily.
When cement is dry, remove boards, level machine
and tighten hold down bolts.
11
FIGURE 11B
Bolting to Concrete Floor
FIGURE 11C
Sensitive Spirit Level
Leveling Machine (Figure TIC)
For leveling machine tools a sensitive, graduated
tube spirit level reading to 10 seconds per gradua
tion (.0005" per foot) and provided with a screw
adjustment, is required. A carpenter' s level or
the bulb in a machinists' combination square is not
good enough. Table must be clean and free of
burrs. Place 6" squares of shim stock under the
four bearing pads of base until machine is level in
all directions. Check machine level periodically.
Always handle a precision level by the ends. If it
is grasped at the center, the heat of your hand
around the glass may distort it sufficiently to im
pair the leveling accuracy.
Cleaning
The machine should never be cleaned with the blast
from an air hose as it will drive grit and dirt into
ways and bearings. Use only lint-free rags for
plain surfaces and a stiff bristle brush for corners.
Prevent formation of permanent stain by periodic
cleaning. If machine will remain idle for a long
time, wipe a thin coat of oil over all exposed parts
to prevent rusting.
Publication No. M-2109

SERVICE MANUAL AND PARTS LIST CATALOG
ADJUSTMENTS
FIGURE 12
Headless Type Gib
To Adjust Gibs (See Figure 12)
Headless type taper gibs are provided to compen
sate for wear of bearing surfaces between sliding
elements at knee and column; knee and saddle;
saddle and table. Keep these surfaces clean and
lubricated to cut down wear.
Move slide, to be adjusted by hand, turn gib ad
justing screw in until movement of slide feels tight
then back off screw until movement is just snug
with a slight drag.
CAUTION — Too tight an adjustment of the gibs
squeezes out the oil film, causing undue wear and
scoring.
To Adjust Drive Belts: Styles 1-A, 1-B
(See Page 28.)
Styles 1-A and 1-B machines are driven through a
V-belt and step pulleys which transmit motor
torque to the drive sleeve through a jack shaft and
timing belt. To tighten the V-belt (3B), turn
knurled knob (43B). To tighten timing belt (9B),
loosen two socket head screws (33B), move V-belt
housing (19B) back until belt is tight and retighten
the socket head screws. When belt can be de
pressed 1/2" (midway between shafts), adjustment
is correct. [If timing belt is noisy, it is too tight.
When properly adjusted, the timing belt runs
quietly.]
To Adjust Drive Belt: Style 1-E
(See Page 56.)
Drive belt (130B) is tightened or loosened by turn
ing knurled knob (101B). Loosen two hex nuts
(133B) before adjusting belt. Tighten hex nuts
after adjusting belt. When belt can be depressed
1/2" (midway between shafts), adjustment is cor
rect.
To Adjust Backlash Eliminator
(See Page 70.)
Lunging table movements while climb milling
would indicate that backlash (B/L) eliminator nuts
are loose or worn and need adjusting.
1. Run table to extreme left position so lead
screw nuts are most accessible.
2. Loosen two socket head screws (82B) and, by
hand only, turn B/L eliminator nut (80B)
clockwise, then tighten screws (82B) while
holding B/L nut. The two screws (82B) can
be placed in either set of two holes in nut
(79B) that are 90° apart.
To Adjust Quill Powerfeed Clutch:
Style 1-B (See Page 34.)
If powerfeed to quill should slip during a normal
cut, it should be adjusted as follows:
1. Drain oil from vertical head, unscrew knurled
knob (175B) at left side of head and remove
six screws holding cover plate (123B,page 32)
from side of head. Remove cover plate.
2. Loosen set screw in adjusting collar (178B),
tap to loosen shoe under it and rotate collar
in a clockwise direction until it is within
0.010" of the front face of male friction clutch
(181B). [Or, run collar tight against friction
clutch and back it off 1/5 of a turn on the 5/8-
18 fine threads of pinion shaft. ]
As hand clutch knob is turned clockwise, it
will push adjusting pins (177B) against friction
clutch and force clutch into spiral gear (182B)
to produce drive to quill.
To Adjust Shaping Attachment Drive Belt
(See Page 96.)
Loosen the three cap screws that attach motor
mounting plate (39B) to belt housing and tighten
knurled knob (48B) until belt (44B) can be sagged
between sheaves about one-half its thickness by
finger pressure.
To Adjust Shaping Attachment Gib
(See Pages 96, 98.)
Slightly loosen bottom gib screw and tighten top
gib screw (104B) until movement of slide (8B) is
felt to be snug as drive belt is pulled over by hand.
= 12

CINCINNATI NO. 1 TOOLMASTER MILLING MACHINE
DISMANTLING PROCEDURE
FIGURE 13
Removing V-Belt Housing
To Remove V-Belt Housing: Styles 1-A, 1-B.
(See Page 28 and Figure 13.)
1. Loosen timing belt by loosening two socket
head screws (33B) and turning knurled knob
(43B).
2. Attach a two-point suspension sling (with pad
ded hooks) to the top flanges above side open
ings in housing (19B). Remove two socket
head screws (33B) and two washers (34B).
Lift housing straight up, slowly, and be cer
tain timing belt (9B) comes free of driven
pulley (22B) as V-belt housing is separated
from spindle housing.
NOTE — If the V-belt housing is to be moved any
distance from the machine, it will be necessary to
break electrical connections at junction box on
motor.
To Remove V-Belt Housing: Style 1-D.
(See Page 54.)
1. Loosen four capscrews (66B) and remove two
capscrews (99B). Rig a two-point suspension
sling with padded hooks and attach hooks to
flanges above side openings in V-belt housing
(58B). Remove slack from lifting cables.
2. Remove four capscrews (66B) and washers
(67B). Lift housing (58B), slowly, until it is
clear of drawbar (210B, page 58).
When reassembling, be certain key (93B) does
not fall out of keyway in helical gear (98B) or
power will not be transmitted to spindle.
NOTE — If V-belt housing is to be moved any
distance from the machine, it will be necessary to
break electrical connections at junction box on
motor.
13:
To Remove V-Belt Housing: Style 1-E.
(See Page 56.)
1. Remove two screws (117B) and remove brake
assembly from side of motor housing.
2. Loosen four capscrews (127B) and remove two
capscrews (146B). Rig a two-point suspension
sling with padded hooks and attach hooks to
flanges above side openings in V-belt housing
(107B). Remove slack from lifting cables.
Remove four capscrews (127B) and washers
(128B). Lift housing (107B), slowly, until it
is clear of drawbar (210B, page 58).
When reassembling, be certain key (144B)
does not fall out of keyway in helical gear
(143B) or power will not be transmitted to
spindle.
NOTE — If V-belt housing is to be moved any
distance from the machine, it will be necessary to
break electrical connections at junction box on
motor.
To Remove Splined Spindle Sleeve:
Styles 1-A, 1-B.
(See Page 28.)
1. Remove V-belt housing per instructions above.
2. Turn driven pulley (22B) until two capscrews
(25B) are accessible through holes in pulley.
Remove two capscrews (25B). Turn pulley
90° until remaining two capscrews (25B) are
accessible and remove capscrews.
3. Lift bearing housing (12B) from top of spindle
housing.
4. Remove screw (6B) and loosen screw (7B) in
locknut (20B). Loosen and remove locknut
(20B). Tap splined spindle sleeve (29B) out
of bearing housing (12B).
To Remove Drive Spindle Assembly: Style 1-A.
(See Page 30.)
1. Proceed as per instructions above under "To
Remove V-Belt Housing" and "To Remove
Splined Spindle Sleeve. "
2. Unscrew hub retainer (86B) that is attached to
spring pin (84B), spring (85B) and spring re
tain er screw (100B). Lift off handle hub
(83B) and dial (82B). Loosen spindle clamp
(65B).
3. Tape a small rag to the exposed end of pinion
shaft (78B) to protect shaft when spring un-
Publication No. M-2109

SERVICE MANUAL AND PARTS LIST CATALOG
FIGURE 14A
Quill Feed Torsion Spring
winds. Grip the tang of spring (80B) with a
pliers and place a rag over spring housing.
Pull tang of spring free of notch in spring
housing (79B) and, at the same time, step
back while spring unwinds. The tang at inner
end of spring lies in groove of pinion shaft
(78B).
This spring is most easily replaced by two
men, each handling spring with a pair of
pliers. [Grease spring before replacing.]
Have spindle at its bottom position, fully wind
spring, back off one notch and hook spring in
housing. [This spring is only strong enough
to balance weight of sleeve assembly. It is
not intended to return spindle to its upper po
sition. ]
4. Remove three screws (87B), lift off spring
housing (79B) and pull out pinion shaft (78B).
Push spindle and sleeve (92B) up far enough
to remove stop key (69B) and lower sleeve
assembly out of head. Stop key contacts ad
justing stop block (52B).
To Remove Drive Spindle Assembly: Style 1-B
(See Pages 32, 34.)
1. Proceed as per instructions above under "To
Remove V-Belt Housing" and "To Remove
Splined Spindle Sleeve."
2. Unscrew hub retainer (194B) that is attached
to spring pin (191B), spring (192B) and spring
retainer screw (193B). Lift off handle hub
(190B) and dial (189B).
3. Tape a small rag to the exposed end of pinion
shaft (183B) to protect shaft when spring un
winds. Grip the tang of spring (187B) with a
= 14
pliers and place a rag over spring housing.
Pull tang of spring free of notch in spring
housing (185B) and, at the same time, step
back while spring unwinds. The tang at inner
end of -spring lies in groove of pinion shaft
(183B). [See Figure 14A. ]
This spring is most easily replaced by two
men, each handling spring with a pair of
pliers. [Grease spring before replacing.]
Have spindle at its bottom position, fully wind
spring, back off one notch and hook spring in
housing. [This spring is only strong enough
to balance weight of sleeve assembly. It is
not intended to return spindle to its upper po
sition. ]
Drain oil from spindle housing by removing
plug (124B) and rotating spindle housing (15 IB)
to left. [See Figure 16B.] Unscrew hand
clutch knob (175B, page 34) and remove cover
plate (123B, page 32). Loosen lock screw
(179B,page 34), unscrew clutch adjusting col
lar (178B) and remove male friction clutch
(181B) [See Figure 15C], key (184B)and spiral
gear (182B). Loosen clamp screw (205B).
Remove two set screws (163B, 162B, page 32)
from side of spindle housing. Replace handle
hub (190B, page 34). Rotate handle (196B) to
raise sleeve (144B, page 32) and, by knocking
it against driven gear (115B), force worm
shaft (118B) up out of spindle housing. [See
Figure 15A.] Pull out pinion shaft (183B,
page 34).
Push spindle (132B, page 32) and sleeve up
high enough to remove stop key (154B) and
lower sleeve assembly down out of head. [See
Figure 14B. ] Stop key contacts depth adjust
ing stop (159B).
FIGURE 14B
Drive Spindle and Sleeve

CINCINNATI NO. 1 TOOLMASTER MILLING MACHINE
To Remove Drive Spindle Assembly
Styles 1-D, 1-E.
(See Page 64.)
1. Remove knurled locknut (364B) from top of
shaft (386B). Remove screw (377B) and loosen
screw (378B) to remove micrometer stop dial
(376B). Loosen screw (384B)and slide pointer
block (385B) up on shaft (386B). Remove re
tainer ring (387B) from groove near bottom of
shaft (386B) and slide ring up toward center
of shaft.
Turn bushing (361B, power feed; 381B, manual
feed)counter-clockwise toremove shaft (386B)
from bushing. Remove two screws (382B and
383B) holding bracket (369B) and remove
bracket from shaft (386B). Removing bracket
(369B) allows removal of the quill (200B, page
58) assembly from spindle housing.
2. Raise table to upper limit. Place block of
wood between table and bottom of spindle.
Loosen quill clamp lever (453B, page 66).
Turn hand feed control wheel (347B, page 62)
to lower spindle. Lower table as spindle is
lowered. Support spindle assembly [near top]
before it is clear of spindle housing.
To Remove Spindle Housing with Spindle:
Styles 1-A, 1-B.
(See Pages 30, 32.)
1. Proceed as per instructions in paragraphs 1
and 2 under "To Remove V-Belt Housing:
Styles 1-A, 1-B" (page 13) and lift off housing.
2. Remove four nuts (95B,page 30; 135B, page 32).
Pull spindle housing straight out of overarm.
This housing assembly weighs approximately
60 lb. [See Figure 15B.]
When assembling, the tee bolts (96B, page 30;
133B, page 32) could be held in correct posi
tions, in circular slot at end of overarm, by
heavy grease until spindle head is pushed into
place in overarm. [See Figure 15B.] Spiral
gear (11 IB, page 30; 129B,page 32) must mesh
with spiral gear shaft (237B,page 36) as hous
ing is pushed into overarm.
If machine is equipped with a double swivel
adapter, remove spindle housing before at
tempting to remove adapter from overarm.
3. After assembling, the spindle alignment with
table should be checked. [See Figure 16A. ]
Tramming readings on a 10" diameter circle
should be 0.000" at both sides and rear, but
0.001" at front. If readings are not 0.000" at
15
sides, it may be necessary to change zero
line on overarm. If readings are not 0.000"
at rear and 0.001" at front, it may be neces
sary to rescrape head.
FIGURE 15A
Worm Shaft - IB Head
FIGURE 15B
Removing Spindle Housing
FIGURE 15C
Spindle Drive Friction Clutch
Publication No. M-2109

SERVICE MANUAL AND PARTS LIST CATALOG
FIGURE 16A
Tramming Spindle To Table
To Remove Spindle Housing With Spindle:
Styles 1-D, 1-E.
(See Page 66.)
1, Disconnect electrical leads at junction box on
back of motor. Place rope sling through open
ings in side of V-belt housing and connect
sling to crane. Remove slack from rope
sling.
2. Remove four nuts (428B) and washers (427B).
Pull spindle housing (420B) straight out of
overarm.
When assembling, the tee bolts (423B) could
be held in correct positions, in circular slot
at end of overarm, by heavy grease until
spindle head is pushed into place in overarm.
[See Figure 15B.] Spiral gear (419B) must
mesh with spiral gear shaft (416B) as housing
is pushed into overarm.
If machine is equipped with a double swivel
adapter, remove spindle housing before at
tempting to remove adapter from overarm.
To Remove Spiral Gear Shaft: Style 1-B.
(See Pages 32 and 34.)
1. Proceed as per instructions in paragraphs 1
and 2 under "To Remove Drive Spindle As
sembly: Style 1-B, page 14.
2. Remove four nuts (135B, page 32) and pull
spindle housing straight out of overarm. Drill
= 16
a hole in expansion plug (212B, page 34) and
remove it. With a brass bar against front end
of spiral gear shaft (209B), drive it out rear
of housing.
To Remove Transmission Shaft: Style 1-B
(See Pages 32 and 34.)
1. Turn spindle housing 90° to left and remove
plug (124B) to drain oil from housing. [See
Figure 16B. ] Return housing to upright po
sition, unscrew hand clutch knob (175B, page
34) and remove cover plate (123B, page 32).
Loosen set screw (179B, page 34), tap collar
to loosen shoe under screw, and remove
clutch adjusting collar (178B). Slip off male
friction clutch (18IB), remove key (184B) and
spiral gear (182B) from pinion shaft. [See
Figure 15C.]
2. Unscrew hub retainer (194B) that is attached
to spring pin (191B). Remove hub handle
(190B) and dial (189B). Tape a small rag to
the exposed end of pinion shaft (183B) to pro
tect shaft when spring unwinds. Grip the tang
of spring (187B) with a pliers and place a rag
over spring housing. Pull tang of spring free
of notch in spring housing (185B) and, at the
same time, step back while spring unwinds.
The tang at inner end of spring lies in groove
of pinion shaft (183B). Take out three screws
(186B), remove housing, and pinion shaft
(183B).
The torsion spring is most easily replaced by
two men, each handling spring with a pair of
pliers. [Grease spring before replacing.]
Have spindle at its bottom position, fully wind
spring, back off one notch and hook in spring
housing.
r~*mi
FIGURE 16B
Draining Oil From Head

CINCINNATI NO. 1 TOOLMASTER MILLING MACHINE
3. Remove spring wire rings (217B) and set
screws (215, 218B) from gears. Drill a hole
through expansion plug (22IB) and pull it from
housing.
Insert a 1/2" by 1-1/2" brass rod into pinion
shaft opening of housing and tap transmission
shaft (214B) out front of housing.
To Remove Speed Change Assembly:
Style 1-D.
(See Page 54.)
1. Proceed as per instructions under "To Re
move V-Belt Housing: Style 1-D, page 13."
2. Pry motor pulley open and wedge with small
blocks of wood to release pressure on belt.
Remove belt (72B). Remove wooden blocks
and allow pulley halves to close.
3. Remove lockscrew (52B) and loosen set screw
(51B). Remove handle (41B) and dial (44B).
Remove three screws (47B) from sleeve
(46B). Turn gear shaft (48B) counter-clock
wise until it is clear of nut (12B). Gear shaft
and sleeve assembly can then be removed
from housing. [Gear (37B) may be removed,
if necessary, by removing lockscrew (20B)
and loosening set screw (28B). This releases
the pressure on gear pin (38B) and permits
removal of pin and gear. ] Remove lockscrew
(8) and loosen set screw (10B) until it is clear
of recess in shaft pin (9B).
Remove four screws (55B) and work drum
switch (59B) out of housing carefully. Do not
break or damage wires attached to drum
switch. With drum switch out of its recess,
tap shaft pin (9B) out back of casting until it
is clear of yoke (17B). Lift pin and yoke out
of casting.
4. Remove five screws (IB) and cover (14B).
[Keep drawbar bolt (6B) in place on underside
of cover or plunger (2B) and spring (3B) may
fall out and be lost. ]
To Remove and Dismantle Powerfeed
Housing: Styles 1-D, 1-E.
(See Pages 60 and 62.)
1. Attach rope sling through side openings in
motor housing (58B, page 54, 1-D machine;
or 107B, page 56, 1-E machine). Remove
three screws (188B, page 58) and raise motor
housing base until it is clear of spindle hous
ing. [It is not necessary to break electrical
connections to motor if the housing remains
suspended on crane or is lowered onto ma
chine table.] Remove plug (262B, page 60)
and screws (263B, 264B) located near top of
housing and midway between screws (258B).
.17
Remove bevel gear (234B) assembly; this as
sembly includes parts (221B, 231B through
234B, 245B and 246B).
Remove plug (272B) and drain oil from gear
box. Remove two screws (283B) and two
screws (258B). Move housing (247B) straight
out from side of spindle housing. Place
powerfeed housing on work bench for dismant
ling.
Remove plug (262B) and screws (263B, 264B)
that hold sleeve (217B) in place. Through
opening in back of powerfeed housing place
screwdriver against recess in face of bevel
gear (226B) and tap complete shaft (220B) as
sembly to left (as viewing explode) out of
housing. [Do not remove shaft (220B) as
sembly by tapping against front end of shaft.
This action would dislodge Truarc rings (219B,
224B, 240B) and result in bearing damage.]
Remove roll pins (301B, 303B, page 62) and
pull shaft (315B), with handwheel and dial in
place, out of housing. Remove gears (300B,
305B, 307B) as they drop free of shaft.
Remove four screws (317B) and cover (326B).
Remove spring (298B, page 60). Remove roll
pin (277B) from shifting arm. Remove dog
point set screw (290B) and tap 1/8" roll pin
[not shown] out of shifting shaft detent (289B).
Remove pin (281B) and lever (293B). Tap
shifting shaft (296B) at lever end and move
shaft through clutch shifting fork (297B) until
key (295B) can be removed. Then tap shaft
in the opposite direction and remove from
control side of housing.
Remove three screws (260B) and remove gear
shift knob assembly. This assembly includes
the following parts: (255B, 256B, 259B through
261B, 265B through 270B, 279B and 280B).
Remove roll pin (308B, page 62) from gear
(306B) and remove gear from end of shaft
(343B). Remove screw (321B) and loosen
screw (320B) that holds sleeve (339B) in hous
ing. Tap sleeve (339B), ring (340B) and plug
(341B) out of housing. [Place screwdriver on
inner face of sleeve and tap carefully. ] Tap
shaft (343B) from above and remove shaft,
gear (337B), snap ring (338B), bushing (348B)
and reversing clutch (336B) through access in
bottom of housing. Remove plug (333B),
screw (332B) and loosen screw (331B). Re
move four screws (309B) and rear cover
(310B). Tap shaft (325B) to left until it is
clear of bevel gear (342B) and remove bevel
gear. Then, tap shaft (325B) to right to re
move shaft and bevel gear (324B) from hous
ing. Gears (329B, 330B) may be lifted out of
housing after they fall clear of shaft. To
Publication No. M-2109

SERVICE MANUAL AND PARTS LIST CATALOG
separate cluster gear from driving gear, re
move ring (328B).
7.
Remove screw (248B, page 60) and loosen screw
(249B). Remove roll pin (250B). Tap shaft
(253B) from inside housing. As shaft is re
moved, it will force plug (254B) out of housing.
To Remove Overarm and Turret:
Styles 1-A, 1-B, 1-D and 1-E.
(See Pages 36 and 66.)
1. Attach rope sling through side openings in
motor housing in head and connect sling to
crane. Remove slack from sling. Remove
four nuts from T-bolts that hold head to over
arm and pull head straight out from overarm.
2. Remove coolant hose (27B, page 90) and brac
ket (23B) if machine is so equipped. Remove
socket head screw from top center of over
arm, insert an eyebolt and attach crane hook.
Wind overarm forward and slide out of turret
(257B, page 36). Make certain overarm is
balanced as it is slid off, to prevent damage
to ways. Break electrical connections, re
move four nuts (255B) from top of turret and
lift turret off column.
NOTE — The overarm is easier to balance while
removing if spindle housing is taken off first.
However, by using a rope sling around spindle
housing and from it to crane, it is possible to re
move overarm with housing in place.
To Remove Overarm (Heavy Duty ): Style 1-C.
(See Page 42.)
Remove one 1/2" set screw (2B) from top of gear
housing (14B) on motor end, insert an eyebolt and
attach to a crane. Remove electrical compartment
cover (10B) and break electrical connections.
Wind overarm forward and slide out of turret.
Make certain overarm is balanced as it is slid
off, otherwise vee-way in turret may be damaged.
If a double swivel housing is being used, turn
spindle housing so it is in line with overarm to
prevent a twisting action as overarm is removed.
It is advisable to use two eyebolts in gear case
when lifting overarm with swivel housing in place.
To Remove and Dismantle Overarm Gear
Housing: Style 1-C
(See Pages 42, 44, 46)
1. Drain oil from gear housing. Set the center
and rear speed shift levers (74B, 68B,page 44)
in the number 2 stops and the forward lever
(88B) in either its number 1 or its neutral
stop. Remove twelve screws (5IB) and pull
speed control plate (56B)from overarm. Mark
= 18
location of gears so they can be more easily
set when assembling.
2. Remove two 1/2" set screws (2B, page 42),
insert two eyebolts and attach to a crane.
Through side opening, set couplings (109B,
112B, page 46) so
their sides are vertical, re
move fourteen screws (IB, 9B, page 42), and
raise gear housing out of overarm.
Overarm can be left on turret while gear
housing is removed but gear housing must be
in place to remove overarm.
3. Loosen set screw, tap to loosen lock shoe,
remove shoe-type lock nut (148B,page 46) and
drive spur gear shaft (142B) toward front of
housing sufficiently to expose set screw in
lock nut (144B). Loosen set screw and tap to
loosen lock shoe in nut. Tap shaft (142B) to
rear into original place and, using a spanner
wrench in the side holes of nut (144B), un
screw it. Tap shaft forward and out of hous
ing.
4. Remove shoe-type lock nut (137B), loosen
locknut (134B) until it is clear of shaft threads
and tap cluster shaft (13 IB) forward and out of
housing.
When assembling, set spur gear (132B) as
far toward rear of housing as possible so
change gear (145B) does not have to shift too
far forward to engage spur gear (132B). If
change gear (145B) moves too far forward, it
will rub against end of change gear shaft
(119B).
5. Remove coupling halves (109B, 112B) and hy-
pro keys from ends of change gear shafts
(105B, 119B). Remove shoe-type locknuts
(108B, 115B) and tap shafts out of housing.
The flange of bearing cup (106B) must have a
flat ground on one side to miss the adjacent
bearing.
To Remove Single Swivel Housing Spindle
and Drive —Without Hand Feed: Style 1-C
(See Pages 44 and 50)
1. Drain oil from gear housing. Set the two rear
speed change levers (74B, 68B, page 44) in the
Number 2 stop and the forward lever (88B) in
the Number 1 stop. Remove twelve screws
(51B) and pull speed control plate (56B) from
overarm. It is easier to align couplings when
assembling if speed control plate is off.
2. Unscrew four nuts (211B, page 50) and pull
spindle housing (213B) from overarm. Re
move index head gear (235B) from sleeve ad-

CINCINNATI NO. 1 TOOLMASTER MILLING MACHINE
justing housing (227B). Remove four screws
(233B) and tap motor driven shaft (224B) and
sleeve housing (227B) assembly out of spindle
housing.
After assembly, the gear (214B) is correctly
aligned and meshed by grinding the spacer
(207B) to correct thickness.
3. Remove spindle bearing cap (203B), split type
spindle locknut (205B) from top of spindle and
spindle cap (220B) from bottom of spindle
housing.
Gently tap spindle down out of housing to pre
vent damage to thrust bearing (219B). It is
not necessary to remove spindle housing be
fore removing spindle.
To Remove Single Swivel Housing Spindle
and Drive —With Hand Feed: Style 1-C
(See Pages 48 and 50.)
This spindle housing is the same one used without
hand feed but is rotated 180° before mounting on
overarm. (See "Ref. " at bottom of page 50.)
1. Proceed as per paragraphs 1 and 2 directly
above under "To Remove Single Swivel Hous
ing. "When assembling, grind spacer (16 IB,
page 48) to set spiral drive gear (153B) to
gear on motor driven shaft (224B, page 50).
2. Remove two screws (17IB) and draw bolt
cover (191B). Remove bearing nut (193B) and
locknut (174B) and remove quill (169B) from
spindle. Loosen set screw (154B) and tap to
free brass plug (155B) under it. Unscrew
quill adjusting cap (199B) from top of spindle
housing and remove with dial (198B) and quill,
adjusting screw (184B).
3. Remove spindle bearing cap (165B) and split
type locknut (163B) from bottom of spindle
(167B). Turn spindle housing 180° and gently
tap spindle (167B) down out of housing to pre
vent damage to thrust bearing (149B).
To Remove and Dismantle Double Swivel
Housing: Style 1-C
(See Page 52.)
1. Remove spindle housing (160B, page 48 or
213B, page 50) from double swivel housing
(260B, page 52). Remove end cap (266B),
shoe-type locknut (265B) and tap spiral bevel
pinion (240B) gently out of housing. If pinion
is driven too hard, the thrust bearing (243B)
might be damaged.
= 19-
2. Remove four nuts (258B) and pull swivel head
out of overarm. Remove index head gear
(247B). Remove set screw (261B) and pull
eccentric (262B) from housing. Remove set
screw (250B), loosen set screw (25IB) and
pull motor driven shaft (254B) and bearing
sleeve (256B) assembly out of overarm.
Remove shoe-type locknut (244B) and gently
tap shaft out of sleeve to prevent damaging
thrust bearing (255B).
3. When assembling, gear (240B) and gear on
motor shaft (254B) are aligned by grinding
spacer (242B) to suit and moving bearing
sleeve (256B) with eccentric (262B). Sight
gears through opening left by removal of ex
pansion plug (249B). When spindle housing
(160B or 213B) is attached to swivel housing,
it may be necessary to readjust all gears to
obtain proper running mesh.
When inserting spindle housing in swivel
housing or the latter into overarm, turn hous
ing 90° to one side before slipping it home.
Thus, if a slight loop of the O-ring gasket
should be squeezed down and cut by edge of
opening, the damaged portion will be above
lubrication level.
To Remove Table
(See Page 68.)
1. Unscrew split type locknut (38B) from right
end of leadscrew (2 IB) and remove handwheel
with dial. Remove key (22B), four cap screws
(24B) and tap right-hand apron (23B) from
table.
2. Move table to right so left apron is near sad
dle. Remove four cap screws (18B) from
left apron and tap apron to free it from table.
Remove precision measuring equipment from
table, if so equipped.
3. Fasten a U-clamp to center of table and at
tach to a crane with a slight tension. Remove
gib (12B), loosen saddle clamping lever (114B,
page 70) and slide table (11B) toward right
and off saddle.
If table is equipped with powerfeed, it is first
necessary to remove gear housing bracket
(144B, page 72) and then proceed as above.
It is extremely difficult to replace an apron
onto leadscrew without damaging the oil seal.
It is better to first remove seal, install apron
and then replace seal. Make a roll of thin
shim stock, slip inside seal, put shim roll on
end of screw, slide seal into place in apron
and remove shim roll.
Publication No. M-2109