Norton Type CTU & LCTU Cylindrical Grinding Machines - Manual Grinder

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^NORTON
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M A C H
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N E S
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Cylindrical
Plain and Semiautomatic
also
Grinding
Machines
14" TYPE iCTU Machines
INSTRUCTION MANUAL No, 1487=1
MORTON
COMPANY
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WORCESTER 6, MASS
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MACHINES
10" TYPE CTU
Cylindrical Grinding Machines
Plain and Semiautomatic
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also
14" TYPE LCTU Machines
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INSTRUCTION MANUAL No. 1487-1
NORTON COMPANY WORCESTER
6, MASS., U.S.A.
Page 3
FOREWORD
The purpose of this Manual is to acquaint the user with the funda mental functions and adjustments of Norton 10" Type CTU Plain and Semiautomatic Cylindrical Grinding Machines.
It also covers 14" Type LCTU Machines, which, other than in actual
swing capacity, are identical to the 10" Type CTU.
In the Parts Section, a procedure for ordering or for correspondence
with regard to replacement parts is outlined. Adherence to this will avoid
unnecessary delays.
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The descriptions, illustrations, and specifications given in this Manual were correct at the time of printing. However, since the policy of Norton Company is to constantly improve its machines, those built at later dates
may differ from these details.
NORTON COMPANY, WORCESTER 6, MASSACHUSETTS, U.S. A.
Chicago 32, Illinois .
Cleveland 3, Ohio Detroit 8, Michigan . Hartford 7, Connecticut
New York 6, New York
Dealers in all principal cities
. 4737 So. Christiana Avenue
1306 East 55th Street . 5805 Lincoln Avenue . 998 Farmington Avenue
61 Broadway
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TABLE OF CONTENTS
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SECTION IINITIAL SET-UP AND ADJUSTMENT
Location Unpacking the Machine Lifting the Machine Setting-Up Assembly Of Parts Electrical Connections
Headstock and Footstock Wheel Sheaves
Mounting the Grinding Wheel ....
Wheel Filling the Oil Reservoirs Oiling
Grinding Coolant Operation Experimenting
SECTION IILUBRICATION
Viscosity Rating Hydraulic and Circulating System Wheel Spindle .
Grease Selection Oil Dilution
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Balancing
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10 10 10
10 10 10 11
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SECTION IIIUNIT CONSTRUCTIONS
Table and Taper Adjustment Headstocks Footstock
Wheel Feed Wheel Feed Settings Power Wheel Head Traverse (Semiautomatic Machine)
Automatic Grinding Feed (Semiautomatic Machine) Automatic Feed at Table Reversals (Plain Machine) Wheel Spindle Reciprocating Attachment Work Start-Stop Unit Hydraulic and Lubricating Pump Units
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16 16
16 16 16 18 18 18
18 19
19
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Page
Hydraulic Oil Strainers ....
Wheel Spindle Bearings Adjustment
Wedge Bolts and Spanner Nuts
Bearing Temperature ....
Spindle End Thrust Adjustment .
SECTION IV
NORTON 10" Type CTU Plain Machine
Operating Arrangements .
19 19
21
21 21
23
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SECTION V
NORTON 10" Type CTU Semiautomalic Machine
Operating Arrangements
SECTION VIGRINDING PRINCIPLES AND GENERAL PROCEDURE
Finish Factors Wheel Truing Use of the Steadyrest
Work Location Adjustment for Taper Wheel Selection
ALUNDUM* 32 ALUNDUM* and 38 ALUNDUM* 57 ALUNDUM*
CRYSTOLON* Factors Affecting Selection Index SettingWheel Wear
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Wheel Balance Center Examination Grinding Compounds
Cleaning Spindle Speed Wheel Speed Changes Work Speed
Traverse Speed Vibration
Deep Groove or Shoulder Grinding Attachment
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25
28
28 29 29 29 29 29 29 30
30
30
30 30 30 30 31 31 31 31 31 31 33
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SECTION VII
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Parts
SECTION VIII
Cross Index of Part Numbers
♦Trade Marks Reg. U.S. Pat. Off.
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LIST OF ILLUSTRATIONS
INSTRUCTION SECTIONS
Norton 10" x 36" Type CTU Semiautomatic Machine Rear view10" x 18" Type CTU Machine Left rear view10" x 18" Type CTU Machine . Right rear view10" x 18" Type CTU Machine ... Nomenclature view10" Type CTU Semiautomatic Machine Floor Plan Lubrication Chart Lubrication Circuit Diagram Complete Wheel Feed Unit Plan viewWheel Spindle Housing Identification of Operating ControlsPlain Machine
Identification of Operating ControlsSemiautomatic Machine
PARTS SECTION
Parts Plate Identification HeadstockA.C
HeadstockD. C.........................................................................
Footstock Wheel Guard and Parts
Wheel Slide and Parts Reciprocating and Shoulder Grinding Attachment . Cross Feed Wheel Feed Apron Feed Screw and Parts Combination Valve Push Button Apron and Cycle Control Mechanism Table Traverse Cylinder Table Control Valve Main Control Valve Parts Hand Traverse Apron Diamond Tool Holder and Steadyrest
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Cylinder
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5 5 6 8
13 15 17
20 22 26
34 36 37 38
39 40 42 43 44
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50 51 52 53
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Front viewNorton 10" x 36" Type CTU Semiautomatic Machine
(equipped with wheel guard truing device as extra)
N-6437
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Rear viewNorton 10" x 18" Type CTU Semiautomatic Machine
(equipped with wheel guard truing device as extra)
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Left rear view
Right rear view—
Norton 10" x 18" Type CTU Semiautomatic Machine
(equipped with wheel guard truing device as extra)
(equipped with wheel guard truing device as extra)
Norton 10" x 18" Type CTU Semiautomatic Machine
N-6446
N-6445
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Nomenclature view- Norton 10" Type CTU Semiautomatic Machines
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NOMENCLATURE
1. Turn counterclockwise to open belt guard cover.
2. Headstock clamping nuts.
3. Headstock rack pinion.
4. Work rotation control lever.
5. Motor push buttons.
6. Table traverse handwheel.
7. Table reverse lever.
8. Truing and grinding speed controls.
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9. Wheel feed manual control lever.
10. Table dwell controls.
11. Selector for semiautomatic or plain operation.*
12. Table stop-start and truing lever.
13. Wheel feed clutch lever.
14. Wheel feed positive stop. Click-Count
15. click on clockwise rotation represents
amount of feed to obtain .0001" work diameter reduction. Push in knob and rotate to make settings in
wheel feed index. Each
tenths.
16. Control for amount of wheel feed at
table reversals (adjustable from zero
to .003").
17. Automatic feed rate controls.*
18. Steel tape type base way guards.
19. One Lever
control for starting grind
ing cycle.*
20. Table swivel adjustment. Turn clock wise to move right end of table toward grinding wheel.
21. Footstock rack pinion.
22. Footstock lever. Pull way back to lock spindle in withdrawn position.
23. Footstock clamping nuts.
24. Footstock spindle binder.
25. Filter for spindle lubricant.
26. Spindle lubricant sight glass (one for each bearing). Lubricant stream must be continuous when wheel is running.
27. Coolant control lever. For manual op eration of coolant flow.
28. Electrical control enclosing case.
Note: Controls marked * arc on Semiautomatic Machines
only.
.
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SIZE
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10x18 10x36 10x48 10x72 10x96
10x120
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3 POINTS AND DO NOT REQUIRE A FOUNDATION
USE FOUNDATION PLAN NB-0516 FOR72."LENqTH
COOLANT-WATER WITH EMULSI FYlNq COMPOUND CHIP DISPOSAL - SLOPED SURFACE FOR
LOADINCq- PART MANUALLY LOADED AND
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MACHINES
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SLUDGE REMOVAL
PROJECTION
REST ON
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3X5 FLOOR SPOT
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63ji"
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8'-3K" 10'-3%" 12'-3>£"
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REAR
WHEEL SLIDE CqUARO
POSITION O F
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14'-3*" 16'-3*''
OPTIONAL SEPARATE
HYDRAULIC RESERVOIR
VICKERS V- LI -105 A L. H-
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EXTREME PROJECTION OF FOCTTSTOCK LEVER.
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Floor PlanNorton 10" Type CTU Machines
Note: Dimension of 7'-5|4" applies only to Semiautomatic Machines.
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SECTION I. INITIAL SET-UP AND ADJUSTMENT
LOCATION
Erecting drawings are sent with every machine shipped from the factory for the assistance of the millwright in setting up our machines. In addition, the illustra tions on Pages 4 and 5 show the appearance
of representative machines and the locations
of the various units. In setting up these machines, care should be taken to provide ample clearances.
It is sometimes found that a grinding machine must be placed in a somewhat adverse location. The proximity of rail road traffic, a hard subsoil condition, or near-by machines that set up
tions will undoubtedly influence the pos
sibilities of obtaining fine finishes, especially
if a highly reflective surface is demanded. Should the location be one in which such vibrations are not absorbed by the usual foundation or the surrounding soil, the foun dation drawing blueprint shipped with ma chines of 72" and longer work length, give data on a special type of river-bed sand foundation which has been used with satis factory results in combating difficult conditions.
UNPACKING THE MACHINE
Care should be exercised in removing the machine from the box or skid in which it is shipped. All containers, blocking, or skids
should be removed with caution. In the
event that heavy tools are used, direct blows on the container or skids should be
jarring vibra
avoided, since the accurately constructed machine might be injured or thrown out of adjustment. The entire shipment should
be checked against the packing list, and any shortage reported at once. See that
no small parts are thrown away, mislaid,
or lost.
LIFTING THE MACHINE
The three-point method of lifting should be used. Place slings around short bars, thrust into the large cast holes in ends of the base and place a hook under the shelf
at the rear of the coolant tank. Hemp rope, wire rope, or steel chains may be used,
with rope being given the preference. Be
sure that kinks or knots do not tend to lift the table or damage any portions of the
machine while lifting.
SETTING UP
Machines of 18", 36", and 48" work length capacity rest on three pads cast into the base. With the use of steel shims and an accurate spirit level, shim the pads as
necessary in order to level the machine perfectly in both directions. Use the table top or ways as planes.
Machines of 72", 96" and 120" work length capacity have adjustable foundation jack screws. These machines must have a
concrete foundation, but do not grout in
base.
Set the foundation plates furnished with
the machine, as indicated on the blueprint.
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After placing the machine, remove the
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tables and with a sensitive spirit level on the flat way of the base, level the machine lengthwise and crosswise. Then apply the
hold-down screws at the ends of the base.
Relevel with the adjusting screws after the
hold-down screws have been tightened.
ASSEMBLY OF PARTS
Assemble all guards, pipes, and the cool ant hose as received separately with the machine. Refer to the pictures in this
manual if assistance is needed in determin ing their location.
ELECTRICAL CONNECTIONS
Care should be exercised in making the electrical connections. This task should be entrusted only to a competent electrician. Refer to the wiring diagram furnished with the machine.
The operating mechanism of the discon nect switch on the control panel is inter locked with the enclosure door. The door
handle must be in the before the enclosure door can be opened.
Connect the incoming power lines to the
terminals marked tions switch. A yellow tag attached to the con
trol panel gives the proper voltage, cycle, and phase. Check for correct wheel motor rotation and if not correct, reverse two of the incoming line connections.
HEADSTOCK AND FOOTSTOCK
carefully cleaned. The spindles of both
should be thoroughly wiped out and the centers carefully inspected. Be sure there are no nicks or burrs on the centers and
that they properly fit their respective holes.
Centers must seat well in their spindles if
good results are to be secured.
Never move the headstock or the foot
stock unless the swivel table is clean.
with a red tag on the disconnect
The headstock and footstock should be
OFF
Customers Connec
position
WHEEL SHEAVES
Three wheel spindle belt sheaves are sup plied, each stamped with the corresponding wheel size with which it must be used. With the safety arm rod properly attached
to the hinged hood of the wheel guard, a safety lever will prevent the mounting of any but the proper size belt sheave.
In mounting the wheel spindle belts, see that they are just tight enough to pre vent squealing.
MOUNTING THE GRINDING WHEEL
First, the wheel should be tapped lightly with a small wooden mallet or a block to be sure it is of sound structure. Unless a clear ring is emitted the wheel should not be mounted. Being satisfied that the wheel
is sound, one of the blotters supplied by
the wheel maker should be placed on the
sleeve. Then mount the wheel. Do not
force it on the sleeve; it should slide on
easily. Now place another blotter on the wheel sleeve flange and slide this on to
the sleeve. Line up the cross-mark on the
flange with a similar mark on the sleeve and insert the screws. Draw the screws up snugly making sure the wheel is gripped
between the blotters. Do not at first draw
one screw up as tight as possible and then the next, also tight. Take up on the first until it is snug. Then go to the diametri cally opposite screw and draw it up snug. Then draw up the screw 90° from the others and continue this procedure taking up a
little at a time until all screws are tight. This is important because unless the flange is drawn down evenly against the wheel, the latter may be cracked. Tighten screws
to 15 foot-pounds with all threads free
running, clean, and rust free.
WHEEL BALANCING
The grinding wheel should then be
mounted in the machine and the wheel
trued. The entire assembled wheel unit
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consisting of the wheel sleeve and the grind ing wheel should then be mounted on an arbor and placed in a balancing stand for determination of balance of the unit. Re move the balancing weights to be found at the center of the wheel sleeve. Allow the unit to come to rest and chalk mark the wheel on the heavy side (at the bottom). Reinsert the weights diametrically above
center until the wheel unit will come to rest in any angular position. wheel is in static balance, tighten the weights, remount the wheel unit in the machine, and retrue the wheel.
FILLING THE OIL RESERVOIRS
There are three oil reservoirs to fill; the wheel spindle lubricant, the hydraulic fluid, and the ways lubricant reservoirs. The wheel spindle lubricant reservoir is within the wheel spindle housing. Fill this reservoir with approximately 7 ]/'■> quarts of 50-60
S. U. V. high grade spindle oil through
the hole for the bayonet gage.
The standard hydraulic fluid reservoir is located inside of the machine base, beneath the wheel slide. Its capacity is approxi mately 38 gallons. Fill with a high grade
hydraulic fluid of 150 S. U. V. to the level
indicated on the sight gage in the base wall. For the outside hydraulic fluid reser voir which is furnished as an optional extra, the same hydraulic fluid should be used. Further instructions will be found on a plate attached to the top of this reservoir.
The ways lubricant reservoir is accessibly mounted at the junction of the front and rear base beneath the wheel spindle belt
guard. Fill to the level indicated on the sight gage with the lubricant specified on the instruction plate mounted immediately
above, or 3^ gallons are required.
OILING
Locate all oil holes and cups on the
on, this
reservoir. Approximately
When the
machine and fill with a medium grade of good machine oil.
GRINDING COOLANT
Whether soluble oil or a paste-type cool
ant compound is to be used (mixed with
water) see that the coolant mixture is rich
enough to prevent rusting the machine. Coolant tank capacity is approximately
75 gallons.
In selecting the compound to be used as
a grinding lubricant, Norton Company
makes no specific recommendation as to manufacture. However, a compound free from soda is advised. In the event that the compound selected proves to have an undesirable foaming effect, the addition of a little kerosene to the coolant will correct this difficulty.
OPERATION EXPERIMENTING
See that all oil and grease cups are filled, and that Check coolant reservoir.
wheel slide to its extreme rear position. Then place the headstock and the foot- stock at the extreme ends of the table and centralize them with the grinding wheel. Set the table reverse dogs so that the table will travel about 6" and the table move ment does not bring either the headstock or the footstock too near the grinding wheel. Before starting the pump motors be sure that the table start-stop lever is
in the stop position. be seen that it is in the stop position until everything is known to be in readi ness to run the table.
oil
in
reservoirs is at proper levels.
Before starting the machine, move the
Naturally it should
Time should be spent in determining the functions of the various controls and care taken to avoid damage. Read the descrip tion of your particular machine arrange ment in Section IV or V.
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SECTION II. LUBRICATION
VISCOSITY RATING
Lubricating and hydraulic oils, greases and grinding lubricants, applied in the operating of Norton grinding machines, should be of a correct type and good qual
ity. The following information should be valuable to the user of Norton machines to get maximum production with minimum down time.
To evaluate the physical properties of an oil, the term indicates the measured resistance of the oil
to flow at a given temperature and rate. The Say bolt Universal Viscosimeter rep
resents the U. S. standard
determining the time in seconds for 60 c.c. of oil to flow through a standard orifice at a specific temperature.
viscosities indicated will be identified at 100° F. for simplicity of control.
Identification of the viscosity represented
by the S. U. V. at 100° F. is the abbrevia
tion for Saybolt Universal Viscosimeter.
U. S. standard
South American standard British standard . Continental
HYDRAULIC AND CIRCULATING SYSTEMS
Oils for hydraulic and circulating systems must be well refined to maintain stability of the oil or freedom from oxidation within
the limits of temperature and pressure un der which an oil of this type must function.
The residues formed during the oxidation
viscosity
is used. This
means of
Saybolt Saybolt Redwood
Engler
The
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S
of a petroleum oil are in the form of gum and varnish which readily disturbs the sen
sitive valves of a hydraulic control mechan ism. plugged pipe lines in the central lubricating
system. The cating the point at which an oil is no longer
a fluid, will present a problem only when the equipment is exposed for long periods of time to low temperatures, or when the new oil in drums is stored in the open with
no physical protection. To assure correct function of the hydraulic system, a high grade oil, well refined and free from im
purities, must be used.
WHEEL SPINDLE
spindle is critical to the successful operation of the entire machine. are no exception to this rule. For spindle
oil, we recommend the use of the highest grade oil with viscosity of 50-60 S. U. V. at 100° F. for use in all Norton machines
with plain bearings.
of contamination, be stable, and operate with freedom from oxidation. No additives should be present. The oil should be of good quality and carry the guarantee of a
reputable refiner.
GREASE SELECTION
be governed by the speed, temperature, and
This also might be the cause of
pour point
The lubrication of any grinding wheel
Spindle oil should be free from any form
The selection of the correct grease will
of an oil, indi
Norton Grinders
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LOOSEN PINCH-BLOCKS AND LIFT STEEL.
RIBBON QUARD TO INSPECT WAYS LUBRICANT DRAIN-HOLES (ONE AT EACH
END
OP PLAT AND VEE WAY )
streams op spindle lubricant
MUST SHOW IN SICjHT QLASSES AT ALL. TIMES WHEN SPINDLE IS IN OPERATION
COOLANT TANK- CAPACITY APPROX.
7
5 GALLONS
WHEEL SPINOLE LUBRICANT FILL POINT. FILL WITH JO SPINOLE OIL TO LEVEL INDICATED ON BAYONET QA^E
AFTER JOO HOURS OF SERVICE
SPINDLE
RECQMMENPEO CHANGE
LUBRICANT
*60 SU.V. AT lOO°F.
(APPROX
7^QTS.)
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HYDRAULIC OIL
FILL
HYORAULIC
ISO S.U.V. AT |00°HYORAUL1C OIL TO
LEVEL INDICATED BY SiqHT QUASS IN BASE WALL ( APPROX. 3Q (^ALS)
FOR OUTSIOE RESERVOIR, FOLLOW
INSTRUCTIONS ON PLATE
RECOMMENDED CHANGE
w
AFTER 500 HOURS OF SERVICE -OR WHEN EVIDENCE OF COMTAMIN ATI ON
TS- THOROU CRVOl RON
RESERVOIR WITH
OHLY CLEAN
CHANGE.
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WAYS
OIL CUPS AND HOLES USE 300 S U.V. LUBRICATING) OIL-
FILL WAYS LUBRICANT RESERVOIR IN ACCORDANCE WITH INSTRUCTIONS
ON PLATE ( APPROX- 3-J (qALS.)
AFTER JOO HOURS OP SERVICE
LUBRICANT
RECOMMENDED CHANGE
.
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SE-779-B
Lubrication Chart
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exposure under which the machine must
operate. Ball bearings at low tempera tures require a soft cup grease. High tem peratures require a high grade soda soap grease which possesses a
When moisture is present, use a water in soluble grease. All greases must be stable, in a pure form free from fillers and of good
quality. The grease should be kept free from dirt and all forms of contamination.
In general, bearing manufacturers mend that a ball bearing be filled from one- third to one-half capacity and be approxi
mately maintained at that level. Greases
must not bleed in operation. oil bleeds from the soap in a grease, there is the danger that the dried soap left by the separation will be the cause of mechan
ical failure. Stability, therefore, is of ex treme importance in grease selection.
high
melting point.
recom
When the
OIL DILUTION
The Norton Type CTU Machine is built with various hydraulic operating valves which require clean hydraulic oil of good
quality in order that they all may operate satisfactorily.
As nearly as possible, care has been taken to prevent coolant splash, spray, or mist from entering the hydraulic reservoir which would tend to form a harmful emul
sion or sludge.
If, however, the oil takes on a yellow appearance, the indications are that some coolant has entered the hydraulic system
and sooner or later will cause faulty action of the delicate hydraulic valves.
In any event, we recommend that the
hydraulic and spindle oil reservoirs be drained and refilled after 500 hours
of use.
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SECTION III. UNIT CONSTRUCTIONS
6
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TABLE AND TAPER ADJUSTMENT
I
These machines have a sliding table which
travels on the flat and a swivel table pivoted in the center on top of the sliding table.
The swivel adjustment is at the right
end of the table and provides a means for making taper settings. The graduated gib is intended as a guide only and any finer adjustment may be obtained by the trial
and error method using the adjusting screw
at the front.
HEADSTOCKS
Two types of headstocks are available for these machines, one a dead and the other a live center type. In the dead center
type, the center remains stationary and the work drive plate revolves about it. In the live center type, the spindle, center, and
work drive plate revolve as a unit.
The
stopping and starting of the head-
stock motor is accomplished automatically. However, if desired this motor may be operated by push buttons located on a
panel at the left front of the machine. A selector switch marked provided for this purpose.
Both the dead center and the live center
types of headstock are driven directly through vee belts. Plates 1 and 2 in Sec tion VII show how the belts are adjusted
by means of eccentric shafts.
The ball bearings of both dead and live
center headstock are preloaded and pre
lubricated so that no attention is required.
and vee ways of the base,
Hand-Auto
is
Headstock center taper is No. 14 Jarno.
FOOTSTOCK
The footstock usually supplied is the lever type with spring compression control. The initial movement of the hand lever retracts the center,
of the lever locks out the center in its re- tracted position.
The footstock spindle is of a large hand knob on the front of the footstock body.
Footstock center taper is No. 14 Jarno.
WHEEL FEED
Wheel feed is accomplished by a feed
screw that meshes with a cast iron half-nut attached to the under side of the wheel slide. The screw is mounted in ball bearings and revolves in a bath of oil. A drawing of
the complete wheel feeding arrangement
including the power wheel head traverse mechanism as furnished on semiautomatic machines, appears on Page 17.
A counterclockwise rotation of the wheel feed handwheel moves the grinding wheel in towards the work. A positive stop and an indexing arrangement of the handwheel provide accurate work size setting.
pushing the indexing knob inwards and rotating it clockwise, wheel feed settings in increments to provide .0001 eter reduction up to a total of .004, may
be selected.
The following table of measurements
A further movement
clamped
of work diam
by
(Refer to Page 17)
means
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Page 21
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represents a correlation of work diameter
reductions in both the English and metric
systems
Each notch in index knob One turn of index knob
One turn of handwheel
POWER WHEEL HEAD TRAVERSE (Semiauto
Semiautomatic
positioning of the grinding wheel. It oper
ates as follows
The wheel slide rapid traverse piston rod
(P) (on Page 17) attached to the end of
the cross feed screw (T) moves the screw and wheel slide forward as a unit until the rapid traverse piston (Q) closes the main
exhaust port (R). Oil now is metered out of cushioning port (S) which slows down the speed of the wheel slide. At the termi
nation of the cushion stroke, the end of the piston gently contacts the front wall of the cylinder for positive stop.
For adjustment of wheel slide rapid traverse movement, loosen check nut (V) shown on Page 17. Then turn screw (W)
in or out to decrease or increase the distance of the rapid traverse movement,
retighten check nut (V). Two needle valves at the rear govern the rate of the forward and backward cushioning strokes.
AUTOMATIC GRINDING FEED (Semiauto
Upon termination of the rapid traverse and cushioning stroke of the wheel slide in forward movement, the automatic grinding
feed begins. This is accomplished by hy draulically rotating the feed screw, grinding feed continues at the rate set by
control "M on the wheel feed handwheel contacts posi tive stop arm D.
Hydraulic rotation of the feed screw is
by means of a wheel feed control cylinder
:
Settings
matic Machine)
This arrangement is provided on the
Machine for rapid, power
:
matic Machine)
on Page 26 until the stop
English
.0001" .004" .200"
Metric
.0025 mm. .10 mm.
5.0 mm.
Then
The
the details of which are shown in the draw ing of this unit that appears on Page 43. Hydraulic pressure moves the double end piston in this cylinder, and the rack teeth on the piston rod rotate the rack pinion
which causes rotation of the wheel feed
gears and the feed screw. Automatic feed is,
therefor, under conditions of solid metal-
to-metal contact.
AUTOMATIC FEED AT TABLE REVERSALS
(Plain Machine)
With the manual control lever (J) as shown on Page 22 turned to the left, auto matic wheel feed at each table reversal is obtained in traverse grinding. The amount
of automatic feed obtainable at each table reversal is from zero to .003". The amount of feed desired within this range is set by control (L) as shown on Page 22.
The total amount of this automatic feed
that is obtainable is .150" in terms of diameter reduction. This represents .075" of wheel slide movement. When this feed is used, there is automatic reset of the wheel head after grinding to size.
When it is desired to traverse grind with out having automatic feed at table rever sals, throw control lever (J) to the right. This equalizes the oil pressure on both ends
of the wheel feed control cylinder. When this is done, the wheel feed handwheel may be rotated at will without disengaging the handwheel clutch. To side grind a
shoulder or step diameter, follow the in
structions on Page 24.
The Semiautomatic Machine also has this
feature of automatic feed at table reversals, for use when traverse grinding operations must be performed.
WHEEL SPINDLE RECIPROCATING ATTACH
MENT
When a spindle reciprocating attachment is supplied, reciprocation of the grinding wheel from 0" to
m
ay be obtained.
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Normally, the setting made at the factory gives approximately To increase or decrease this amount, re move the circular cover behind the recipro cation control lever on top of the wheel spindle housing. Insert a pin wrench in the holes of the graduated flange beneath this cover, and set to the amount desired. Each graduation on the flange represents Yp" reciprocation of the spindle.
WORK START-STOP UNIT
Work rotation is automatically started
and stopped on both Plain and Semiauto matic Machines. This unit is located in side the left front apron. A limit switch is operated by hydraulic and spring action so as to start and stop the A selector switch, mounted on the left front panel, may be turned to HAND if manual control is desired.
HYDRAULIC AND LUBRICATING PUMP UNITS
These units are on the right side of the machine immediately beneath the wheel spindle belt guard. The pressure relief valves for both the hydraulic and ways lubrication systems are in this area. Nor mally, these valves are set at the factory for the pressure at which each system should operate. However, metal tags speci fying the correct pressures are attached to
each valve. Maintain ways lubricant pres sures at 4 to 6 pounds. Excessive pressure may cause improper positioning of sliding components.
On the discharge side of both the lubri cation and the hydraulic pumps are filters- These should be checked periodically, and given such attention as may be necessary.
See that the hydraulic filter element does not become clogged, because this condition
may result in a faulty machine action.
HYDRAULIC OIL STRAINERS
Machines arranged with the hydraulic
of reciprocation.
1 6
work drive motor.
fluid reservoir inside the base have a strainer for the hydraulic fluid located in the suction line of the hydraulic pump
beneath the wheel slide,
with the hydraulic fluid reservoir outside, this strainer is in the tank. These should be checked periodically to prevent clogging.
WHEEL SPINDLE BEARINGS ADJUSTMENT
While these bearings are adjustable, we caution against any promiscuous tampering with them. Many machines are on record whose bearings have not been adjusted over
long periods, and it is advised that such
adjustments be made only when the need
has been definitely proved. In this case, a very slight adjustment should be made and repeated if necessary. This is to avoid the possibility of tightening too much and causing overheating or seizure.
In making an adjustment, set up but one bearing at a time, allowing the machine to run under working conditions for a day or so before adjusting the second bearing, if this is necessary. The cooler bearing is naturally the one to adjust first. Do not attempt to adjust bearings when they are
cold. In preparing to adjust a bearing,
be sure to loosen the wedge bolts of the
bearing concerned. Do this upon removal of the spindle housing cover so that this
step will not be overlooked.
Reduction in the diameter of the bear ing bore is obtained by drawing the bearing into its case by tightening the inner spanner nut. The taper on the O.D.
of the bearing is such that when the bear ing is drawn into its case .012", a reduc tion of .001" is obtained in the bearing bore.
Therefore, to obtain .001" reduction of
the spindle bearing bore, set up a clearance
of .012" between the outer spanner nut and the spindle bearing case by use of a
NOTE
On machines
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Page 23
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feeler gage. Now tighten the inner spanner nut until the outer nut is seated against the bearing case. This should give .001" reduc tion of the bearing bore. Use this twelve to one ratio to obtain any reduction desired.
When the bearing has been drawn into
its case, loosen both the inner and outer
spanner nut. This bearing will remain at the point to which it has been drawn. Now tighten the wedge bolts which will straighten the bearing in
its case if there has been any tendency
toward twist. After the wedge bolts have
been brought up snugly (do not tighten
excessively), bring up the inner and outer
spanner nut snugly but not too tightly and
replace the housing cover.
WEDGE BOLTS AND SPANNER NUTS
The wedge bolt tightening operation is
extremely important. They should be brought up snugly but not The wedge bolts straighten up the bearing
in its case, and to do this effectively, the
outer and inner spanner nuts must be loose. After this is done, tighten up the outer and
inner nuts firmly,
mering on the nuts will set up strains
bearings which may lead to trouble. Do
not pound on the wrench with a hammer
move is
but not too tightly. Ham
important. The
excessively
tight.
in the
and under no circumstances should a set punch be used in adjusting these spanner nuts, since these tools will cause a peening
action which in time might cause oil leak
age from the bearing.
BEARING TEMPERATURE
Bearings
when they are cold. Should the machine
be in need of bearing adjustment,
to run for some time until the bearings
warm
up.
will often seize the spindle when the latter
is allowed to run. This seizing is caused by the differences in expansion occurring in the spindle parts and the fact that a cold adjustment does not usually provide clear ance enough for the expansion of the spindle.
SPINDLE END THRUST ADJUSTMENT
When required, this adjustment is made by two spanner nuts at the end of the spindle worm. One nut locks the other in place. Be sure to make this adjustment in
small increments. Too tight an adjustment may bind the spindle. Do not peen these nuts over as a locking precaution, since this will prevent proper seating of the nuts against the worm.
should never be adjusted
A
bearing, if adjusted when cold,
allow it
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Page 25
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IDENTIFICATION OF OPERATING CONTROLS
Type CTU Plain Machine
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A. Wheel Feed Handwheel. Graduations equal .001" in work diameter reduction B. Index Knob. Each click on rotation represents C. Handwheel Clutch
D. Wheel Feed Positive Stop Arm
F. Pointer for G. Reverse Lever H.
Table Stop-Start Lever. This lever also produces truing speed as set by controls to the left
J. Manual Control Lever
L. Control for amount of feed at table reversals
S. Selector switch for manual or automatic work rotation control
T. Table Handwheel
determining
amount of wheel feed
22
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for .0001" work diameter reduction
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SECTION IV. NORTON 10" TYPE CTU PLAIN MACHINE OPERATING
ARRANGEMENTS
CYCLE CONTROLS CONSIST OF
1.
Work rotationstop and start.
2. Coolant flowstop and start.
3. Interlock of table handwheelconnect and disconnect.
4. Wheel feedadvance and retract.
PLAIN MACHINE
This type of machine has the following
features for traverse grinding of work:
I Hydraulic table traverse, selective for
grinding and truing speeds. speed hand drive apron with auto matic handwheel interlock.
II Individual hydraulically controlled ad
justable dwell at each end of table reversal.
III Hydraulically controlled adjustable
wheel picker feed at each end of table
reversal. (Revolving feed screw type.)
IV Automatic or manual control of work
revolution stop
jogging control.
V Automatic
VI Hydraulic means to convert picker
feed to manual control for grinding shoulder and step diameter grinding on work without disturbing wheel feed
set-up.
FUNCTIONS
1. Place work in the machine and engage footstock center in
and
start, with manual
control of grinding coolant.
work.
Throw table
Single
stop-start lever (H) full motion to the
left.
a. Table starts traversing and dwells
at each table reversal if desired.
(Right- and left-hand table dwell controls clearly identified on front
of machine.)
b. Work revolves with selector switch
(S) set to AUTO.
c. Grinding coolant starts to flow.
d. Table handwheel (T) is discon
nected from rack pinion.
e. Grinding wheel advances at an
initial rapid feed to take backlash.
f.
Grinding wheel is fed into the work
at each table reversal (adjustable by control (L) from 0 to .003") until work is down to size.
2. Throw table stop-start lever (H) full motion to the right.
a. Table stops traversing.
b. Work and coolant stops.
c. Table handwheel (T) is connected
to rack pinion.
d. Grinding wheel retracts the total
amount of picker feed plus the ini tial rapid feed.
3. Move footstock lever releasing work and remove work from machine.
When it is desired to obtain more clearance loading, proceed
between work and wheel for
as follows:
up existing
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23
Page 27
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1. Declutch wheel feed from feed cylinder by lever (C) when wheel is retracted.
2.
Crank wheel feed handwheel (A) clock wise to desired clearance, between work and wheel.
3. After starting table, turn wheel feed handwheel (A) counterclockwise until wheel contacts largest diameter on work.
4. Engage wheel feed clutch (C) to wheel feed cylinder and proceed as originally explained.
To side grind shoulder or step diam
eter on work proceed as follows:
1. When work is to size and before stop ping table traverse, throw manual con trol lever (J) to the right,
a. Converts cycle controls from table
stop lever (H) to manual control lever (J).
2.
Turn wheel feed handwheel (A) clock wise for clearance between wheel and work.
3. Throw table stop-start lever (H) full motion to the right.
a. Table stops traversing.
b. Table handwheel (T) connects to
rack pinion.
4. Side grind shoulder or step grind as desired.
5. Throw manual control lever (J) to
the left. a. Converts cycle controls back to the
table stop-start
lever (H).
b. Work and coolant stops. c. Grinding wheel retracts the total
amount of picker feed plus the ini
tial rapid feed.
TO SET WHEEL FEED INDEX
Proceed as follows:
1. Declutch (Cj handwheel (A) and back off wheel. Close Valve (L). Put
workpiece in machine.
2.
Start table traverse, coolant flow and work rotation by throwing table start- stop lever (H) to the left.
3. Feed wheel by handwheel (A) until faint spark from workpiece occurs, then engage handwheel clutch (C).
4. Pull out knob (B) and move hand- wheel to left until positive stop con tacts positive stop arm (D).
5.
Rotate index knob (B) clockwise the
amount of grinding feed desired by using pointer and graduations on hand- wheel. Each graduation on handwheel
equals .001" work diameter reduction. Each click of index work diameter reduction.
6. Throw table start-stop lever (H) full
right to stop table, coolant flow, and
work rotation, then open valve (L) so as to give the proper amount of feed at each table reversal.
7. Grind a sample workpiece. If neces sary, correct for final size by move
ment of index knob (B).
knob equals .0001
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SECTION V. NORTON 10" TYPE CTU SEMIAUTOMATIC MACHINE
OPERATING ARRANGEMENTS
SEMIAUTOMATIC MACHINE
This type of machine has the following features for plunge cut work or conversion to traverse work. Semiautomatic Machines have all the features as described under Plain Machines and in addition have the following
II Hydraulic rapid wheel head traverse
III Continuous straight infeed for plunge
IV Means to convert semiautomatic ar
V Electrically controlled timing device
Functions (with selector valve (P) set
to PLUNGE).
:
I Hydraulic means to convert picker
feed or continuous feed to manual con trol for shoulder and step diameter grinding on work without disturbing wheel feed set-up.
with adjustable stroke.
cut work.
rangement of machine to a plain machine.
to automatically terminate cycle, if desired.
1. Place work in the machine and engage footstock center in work. wheel head traverse lever (N) toward operator.
a. Energizes wheel slide valve solenoid. b. Wheel advances rapidly.
c. Work revolves with selector switch
(S) set to AUTO.
d. Grinding coolant starts to flow.
Operate
e. Grinding wheel advances at an ini
tial rapid feed, to take up existing backlash.
f. Proceeds to grind at the predeter
mined rate of feed, until it is
stopped by (D) and sparks die out.
g. Electrical timer indicates termina
tion of grinding cycle, and de energizes wheel slide valve solenoid.
h.
Wheel slide retracts rapidly.
i. Wheel feed retracts rapidly.
j. Work stops revolving.
k. Coolant stops flowing.
2. Move footstock lever releasing work and remove work from machine.
Conversion to plain machine ar
rangement:
Move selector valve lever (P) to the
traverse
Lever control for termination
1.
To side grind shoulder or step diam
eter on work proceed as follows:
1. When work is to size, throw manual
position.
a. Transfers cycle controls from wheel
slide lever (N) to table stop-start
lever (H).
Turn selector switch (S) to HAND,
thus eliminating the electric timer. Then substituting (g) in above func
tions by
lever (N) toward machine to de
energize wheel slide valve solenoid.
control lever (J) to the right.
operating wheel head traverse
of
cycle.
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IDENTIFICATION OF OPERATING CONTROLS
,
A. Wheel Feed Handwheel. Graduations equal .001" in work diameter reduction B. Index Knob. Each click on rotation represents setting for .0001" work diameter reduction C. Handwheel Clutch
D. Wheel Feed Positive Stop Arm
F. Pointer for determining amount of wheel feed
G. Reverse Lever
H. Table Stop-Start Lever. This lever also produces truing speed as set by controls to the left
J. Manual Control Lever
L. Control for amount of feed at table reversals
M. Feed rate control for plunge grinding
N. Cycle Control Lever. Pull to bring wheel forward, push to retract wheel or stop cycle
P. Selector for Plain or Semiautomatic operation
S. Selector switch for manual or automatic work rotation control
T. Table Handwheel
Type CTU Semiautomatic Machine
26
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a. Converts cycle controls from wheel
head traverse lever (N) to manual control lever (J).
2. Turn wheel feed handwheel (A) clock wise for clearance between wheel and
work.
3. Side grind shoulder or step diameter manually.
4. Throw manual control lever (J) to the left.
a. Converts cycle controls back to the
wheel slide traverse lever (N).
TO SET WHEEL FEED INDEX
1. Start machine, load workpiece, push control lever (N) to put grinding wheel
in back position.
2. Declutch handwheel (A) with control (C) and revolve handwheel clockwise
several turns. Close wheel feed valves
(L & M). Note: Valve (L) controls
the amount of feed at table reversals. Its function is explained on Page 26. It should remain closed for plunge grind operations.
3. Pull control lever (N) to bring wheel forward grinding wheel should stop short of
the workpiece. If it appears that the wheel will contact the workpiece, im mediately retract wheel by pushing
control lever (N). Then revolve hand-
wheel clockwise several more turns. This will provide additional clearance
On this movement the
.
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on forward power movement of the
wheel.
4. When wheel stops short of the work- piece on forward movement, wheel into light contact with work- piece by counterclockwise movement of handwheel (A), handwheel by control (C).
5. Pull out index knob (B) and move handwheel to left until positive stop
contacts positive stop arm (D). Now rotate index knob (B) clockwise the amount of grinding feed desired.
Note: Each click of index indicates
setting for .0001" work diameter re duction; each graduation on wheel feed handwheel equals .001" work diameter reduction.
6. Retract grinding wheel by pushing control lever (N). Open valve (M) slightly. This valve governs the rate of the grinding feed. Now forward by pulling control lever (N) and when wheel begins to grind work- piece, adjust valve (M) to obtain the feed rate desired.
7. When wheel feed stops through con tact of positive stop on handwheel with positive stop arm (D) retract wheel by pushing control lever (,N). Inspect workpiece for size. Correct setting as necessary by index knob (B).
8. Set Timer by timing the next piece
ground.
Then reclutch
bring wheel
feed
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Page 31
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SECTION VI. GRINDING PRINCIPLES AND GENERAL PROCEDURE
FINISH FACTORS
The quality of finish of the ground sur face is due to the manner in which the machine operates and to the condition of the wheel face. The first is a matter of
mechanical perfection and it is felt that the Norton machines are second to none
in smoothness of operation and control and in freedom from vibration. The second, the condition of the wheel face is a matter of technique, a grinding skill which is only acquired by experience.
WHEEL TRUING
In preparing the wheel face, the prin ciple laid down is that the rougher the face of the wheel, the rougher will be the finish
on the work. Conversely, if fine finishes are to be obtained, the wheel face must
more nearly approach a smooth surface. Since the dressing of a grinding wheel with a diamond or other device consists of break
ing out of the grinding surface of the wheel abrasive particles to present a new series
of cutting faces, truing for rough finishing will mean taking out larger particles of the abrasive than in truing for fine finish.
Hence, in rough truing, the wheel feed is comparatively heavy and the traverse fast,
while fine finish truing demands the lightest of wheel feeds and the slowest of table traverses.
Truing equipment varies with the work
at hand. Several devices are available to
supplant the familiar diamond such as the
< <
Place,
dressers. Various methods are used to hold
the truing devices to the machine, quick detachable standards being available for
direct attachment of these devices to the table. In the majority of cases, however, it is found that the diamond toolholder attached directly to the table is entirely satisfactory. The toolholder may be per manently clamped to the table, by sliding the truing bar to clear the work, during grinding.
The routine practice in wheel truing, fol lowing the balancing of the wheel, consists of feeding the wheel into the diamond about
0.001" and traversing the diamond across the wheel face at a medium should be fed in about 0.001" at each pass until a perfectly round wheel is assured. This should (the wheel grain being correct) produce a wheel surface satisfactory for rough grinding.
Truing for finer finishes from this point
consists of reducing the table traverse to the slowest speed comparable to the finish desired and reducing at the same time the amount of the feed of the wheel toward the diamond. In fact, for the finest of finishes, it is advisable to make several
passes of the wheel across the diamond without any inward feed of the wheel.
In summation, it may be repeated that
good truing technique is only obtained through experience. Rough truing consists of opening up the grinding surface of the
Ross,
or
Precision
rate. The wheel
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m
S*
9*
9*
.
1.
h
\s
E
E
K
r
W
E E E E E E E
r*
wheel to expose sharp abrasive surfaces necessary for the rapid removal of stock. Finish truing, requiring a smoother abra sive face, requires the lightest possible feeds of the
wheel to the diamond and the slowest possible table traverse compatible to pro duction.
Care should tion, especially if the comparatively valu able diamond is being used. Avoid con tinual truing.
constant truing is unsuitable for the work and should be replaced. Avoid excessive wear of the diamond on wheels which are too hard. Avoid giving a heavy truing feed to the wheel and then pouring on the coolant since, with the diamond heated up, the coolant may crack the stone or loosen it in its nib. Always bring the diamond onto the wheel in the approximate center
of the grinding surface since this avoids the possibility of the wheel first striking the side of the nib due to an error in judgment of distance.
USE OF THE STEADYREST
The use of the steadyrest requires re straint. In ordinary use, the under bearing is brought up snugly against the work while the front bearing rests lightly, but without play, against the work. Too much pressure on the latter bearing will make the work grind small.
The number of rests to be used depends on the work to be ground. long slender piece of work will have a greater tendency to spring than a short stubby bar. No set rule may be laid down
for the number of rests to be used, as the depth of the grind also must be taken into
consideration.
WORK LOCATION
The first thing to do in locating the work is to set the headstock and footstock for the length of the
be taken
A wheel which requires
piece to be ground. These
in any truing opera
Naturally a
can be set anywhere on the table, but it is better practice to have the center of the
workpiece come approximately over the
center of taper adjustment. wheel, and then take a light cut across the
work.
ADJUSTMENT FOR TAPER
Check the workpiece to determine ex actly how much stock is to be removed and also to find out what taper adjustment is necessary. After making this adjustment take another light cut. Experience will
teach how much adjustment
overcome a known taper.
WHEEL SELECTION
The selection of
enced by many factors and naturally a manual of this nature can give only sug gestions on a proper choice. However, the operator or shop foreman is urged to exer cise intelligent discrimination in making his selection. Not only will production the quality of work be affected by the use of proper wheels, but wheel expense itself, an important item, is seriously influenced by such selection.
grinding need. Hundreds of combinations of grade, grain, and bond are available and a good general rule in wheel selection is found in
the wheel, tions to this rule.)
ALUNDUM*
ton Companys aluminum oxide abrasive wheels. They are most suitable where the work to be ground is of steel or a steel
alloy. In fact, these wheels are adaptable to the majority of cylindrical production work.
29
the
table in order to equalize the
Next true the grinding
a grinding wheel is influ
There is a NORTON wheel for every
The harder
> >
(There are, naturally, excep-
ALUNDUM* is the trade name for Nor
*Trade Marks
Reg.
U. S.
Pat
the
steel, the softer
Off.
to
make to
and
i
i
Page 33
;
32 ALUNDUM* AND 38 ALUNDUM*
For extra sensitive steels, it is suggested
i
:
that a wheel made of 32 ALUNDUM* or 38 ALUNDUM* be used since such a wheel
has less tendency to burn the work.
57 ALUNDUM*
57 ALUNDUM* is another member of the NORTON family of ALUNDUM* abrasives. Its grinding characteristics are
intermediate between the tough regular
ALUNDUM* and the friable 32 or 38 ALUNDUM* abrasives. Hence, it is an ideal abrasive for general purpose grinding on denser and harder alloy steels where stock removal is normal and corner wear
is not a factor.
CRYSTOLON*
CRYSTOLON* wheels, of a hard, sharp abrasive, are best suited for grinding cast iron, non-ferrous metals, non-metallics and certain exceptionally hard materials. This category includes rubber, soft brasses and
bronzes, aluminum, copper, glass, and the
cemented carbides.
again determine the amount of stock to be removed and set the index accordingly.
When the piece has been reduced to the size for which the index was set, again check the piece itself with a micrometer or gage and, if necessary, make a correction
in the index setting and reduce the piece to size. moved, or if the grinding wheel is too soft for the job, you will probably find that, due
to wheel wear, the piece will be somewhat oversize. avoided but by the selection of the correct wheel and removing only the few thou sandths ordinarily taken off in finish grind
ing, there should not be enough wear to necessitate a change in index setting in grinding only one piece.
WHEEL BALANCE
Unless the grinding wheel is correctly balanced, good work cannot be produced. Because a grinding wheel was correctly balanced when it was full size does not necessarily mean it will be in balance after being reduced in size.
If there is much stock to be re-
Wheel wear, of course, cannot be
TP:
*5
ft
S*
S
c
ft
■S
r
i
ft
5
53
FACTORS AFFECTING SELECTION
Knowledge of the material to be ground
alone, however, is not sufficient basis for proper wheel selection, especially in high production work. Other factors such as
the area of contact between the wheel and the work, the type and condition of the grinding machine itself, wheel speed and
work speed, are all important factors.
Obviously, with such a variety of factors
to be considered, expert guidance may be required in making the proper wheel selec tion, and to this end it is suggested that a
Norton Company wheel representative be consulted wherever possible.
INDEX SETTINGWHEEL WEAR
When the machine is grinding straight
within the established limits of the piece,
CENTER EXAMINATION
30
Examine the center points frequently to see that they are not scored. Also, be sure the center holes in the workpiece are of
sufficient size and that they are clean, the center holes have become damaged,
good work cannot be produced, headstock or footstock centers are removed, always be sure to wipe out the spindle before reseating the points.
Also inspect the center shank to be sure it is free of nicks or specks of dirt. A tiny grain of dirt on a center will prevent its
seating properly and cause unsatisfactory work to be ground. the centers or the center holes is the most common cause of poor grinding.
*Trade Marks
Reg.
U. S.
A
poor condition of
Pat. Off.
If the
5
If
5
31
1
3
Page 34
w
i
w
!
ps
3
GRINDING COMPOUNDS
A satisfactory grinding solution may easily be made by filling the machines tank with water and adding a can of grind
ing compound, approximately five pounds. A thinner proportion may be used at the discretion of the operator. Other kinds of compound may be used in this machine. Soda compounds, especially in hydraulically operated machines, are not recommended since they have a tendency to create a film which causes sticky valves. This leads to
faulty machine operation. In general, the
coolant mixture should be just rich
enough to not rust the machine.
CLEANING
The machine should be cleaned regu larly. Despite a built-in settling tank, grit and metal particles have a tendency to
5 >
float recirculation to the possible detriment of the ground finish. A filter may be used to good advantage.
in the coolant, which may mean
proper wheel in belt length).
WORK SPEED
It is necessary for efficient grinding to establish the correct work and traverse speeds. The work speed will depend on the nature of the material, the wheel being used and the finish required. In general, the work speed and the traverse speed should be the fastest possible and still ob tain the desired results. Increasing the
work speed tends to make the grinding wheel act softer.
TRAVERSE SPEED
The traverse speed should be adjusted when rough grinding so that at each revolu tion of the work the table will advance a distance somewhat less than the width of the grinding wheel. For finish grinding, the table speed is greatly decreased. Here again, only experience will teach an opera tor what work and table speeds to use.
surface
speeds (with
no
change
c
w
e
-J
SPINDLE SPEED
Norton grinding machines are built to provide a surface speed of 5500 to 6800 feet per minute to the grinding wheel. As the
wheel wears, this surface speed, of course,
is reduced and the wheel action becomes
noticeably different, softer and more frequent truings will be required in order to obtain the desired finish.
WHEEL SPEED CHANGES
The wheel spindle is driven by vee belts directly from a motor which is adjustable and mounted on the rear end of the wheel
slide. When the standard diameter wheel is worn down appreciably, the surface speed has diminished to such an extent that the efficiency of the wheel is very low. Appro priate sheave changes may now be used so as to re-establish, as nearly as possible, the
The wheel will act
VIBRATION
Vibration in a grinding machine is one of the chief causes of difficulty and pre cludes all chance of obtaining a good finish. Occasionally the source can readily be lo cated but at other times its origin is very obscure.
Vibration is traceable to many things. An out-of-balance wheel will produce a pounding noise and show up in the work surface. Too hard a wheel will also cause
chatter marks. If the spindle bearings have been abused or subjected to severe service, they wear excessively and good work can not be produced.
An out-of-balance motor armature can
be the cause of vibration, and it is for this reason that Norton Company prefers to supply motors with machines. The arma ture of every motor used is removed and checked for balance before mounting.
31
i
Page 35
f
*
ae
fc
I 1
CROSS FEED SCREW
:
v//////////////////////////\
QUIDE P I S TON
/
i
WHL SLI o
SOLENOID
SHOWN 90°
(
OUT O F
POSITION
e
:
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ody feed
S
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B«0,S.
0-4
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PRESSURI
from
p
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i
33
\
v
1
4
----
LU-lJ
I
ss
P
ump
,
der
' *
S
SHOUL
FEED CYLINDER
REAR PLAN VIEW MECHANISM
( S
tart of
'////
EXM
P
houlder
C
SHOULDER FEED
'✓AU.V'E PISTON
R
eed
)
p
pgwa
1|| CONTROL- ROD f )
SHOULDER. FEED
cylinder
\\\
CAP
line pressure
EXHAUST
o
LS
*
O
C3
S
houude
feed
1-
SWITCH
D
J
___ PKES5URE FROM
~2o MBIN AT I O r-4
VALVE T
(
ref
. NIB- 87 87)
WHEEL FEED PlSTOIN
//'
'll O iii
$
r
I
FRONT OF BASE
PICK ER
-A
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BODY FEED
5HOULDPR
FEE D
P
SOX V ALV E
SE-743
32
Page 36
r
■BBBMHHI .
.........................................
I
t
P*
9
m
ba
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ba
Y
W
9*
9
W
DESCRIPTIVE OPERATIONDEEP GROOVE OR SHOULDER GRINDING
ATTACHMENT (1
1. Wheel Solenoids S, and S
the back position and the N.O. Solenoid valve is open. In addition,
the shoulder feed valve piston is in contact with the end cap C and port
is open to atmospheric exhaust.
2. Wheel Slide Rapid Traverse Forward
Pulling the wheel slide lever forward, energizes S, and S which closes port P> At the end of the pre-set slide rapid traverse movement, nut N contacts the end of the shoulder feed valve piston and a further movement closes port P.
Slide Retracted
2 are de-energized and so the wheel slide piston is in
Maximum Movement)
2 simultaneously
i
: !
;
P
F
V-
9 9
&
9 9
9
e
E
E
3. Shoulder Feed Movement
With port P cannot move and the only wheel slide movement at this phase is due to the shoulder feed which continues until the wheel slide piston contacts the cylinder end cap. This terminates the shoulder feed.
4. Body Feed
Simultaneously with the shoulder feed termination, Dog D contacts LS-. which de-energizes S free to move to the right and the body feed starts.
5. Shoulder Feed Setting a. Back off nut N.
b. Bring the slide forward under power.
c. Adjust distance between N and end of shoulder feed valve piston
equal tototal wheel slide traverse minus (shoulder feed plus ^§).
d. Adjust D and LS
(Backlash is compensated at start of slide rapid traverse.)
2 closed, the oil is trapped so that the wheel speed piston
2 and opens port P2. Now the wheel feed piston is
2 so S-. is de-energized.
i
!
f, f,
9
33
'
a
Page 37
Wheel Guard & PartsPlate 4
GO
HeadstockPlates 1 & 2
Push Button ApronPlate 11
Hand '
raverse
ApronPlate 15
Table
Control ValvePlate 13
Combination ValvePlate 10
MORION
N>li-
!
. J
a m-n
■' rm - -
Main
Wheel Slide & PartsPlate 5
Reciprocating & Shoulder Grinding
AttachmentsPlate 6
j
Control
Valve PartsPlate 14
FootstockPlate 3
Wheel Feed ApronPlate 8
Feed Screw & PartsPlate 9
Table CylinderPlate 12
Cycle
Control
M
chanismPlate 11
J
Cross Feed CylinderPlate 7
ti. A,
PARTS PLATE IDENTIFICATION
& di/in /
id
/n /n
/fl
fl\ iT\ /n <t\ n\
N-5751D
/t\
fl\
Page 38
5*
j
3*
8
3*
1
7*
K
SECTION VII. PARTS
Index
HeadstockA.C. HeadstockD.C.
Footstock
Wheel Guard and Parts Wheel Slide and Parts . Reciprocating and Shoulder Grinding Attachment . Cross Feed Cylinder Wheel Feed Apron
Feed Screw and Parts
Combination Valve Push Button Apron and Cycle Control Mechanism Table Traverse Cylinder
Table Control Valve
Main Control Valve Parts Hand Traverse Apron Diamond Tool Holder and Steadyrest
Unit
..........................................................
.................................................................
..........................................................
.................................................................
....................................................
...........................................................
....................................................
...........................................................
..........................
Plate
1
2 3 4
5
6 7 8 9
10
11 12 13 14 15
16
Page
36 37
38
39
40
42
43
44 46 47 48
49
50 51 52 53
K
e
z
z
Please specify Plate Number on which a required part is shown
Please specify machine Serial Number with every inquiry or order
i ;
35
Page 39
IO CTU ISO- Drive. Shaft Sheave
10 CTU 1 S 2 - Eccentric Cap_
IO CTU I S3 - Eccentric Ball!
10 CTU I 84 "Ball Bearings (2.)
IO CTU 185-Washer (3) S
IO CTU 186
u
o
IO CTU I 87 - x
drive Sheave
I 8
1- Drive Shaft___
Bearind Sleeve J
RacK Pinion
m
Motor Shaft
.• V*
I O CTU 197-
1
U I 95 - Motor -
,1
U 196-VeeBelT
Sheave
I O CTU 210-
Plugging
>witch Sheave
IO CTU 200-
nve Sheave.
IO CTU I 88 - Vee Bel tsC5)' >1
*10 CTU 189 - Body
#IO CTU 190-End Cover
IO CTU I 9 I - WorK Drive Plafe' IO CTU 19 2-
10 CTU I 93 -HeadstocK Center-
10 CTU 1
Retainer - Smal I
94 - Washer (•'fl _
______
Ball Bearind
X
___
>
_____
10 CTU 201 10 CTU 202- Bearing Retainer-Large
IO CT U 203" WorK
IO CTU 205-Ball Bearings(2)
7 u
^Th<zse2 par+sare.attached
HEADSTOCKv ^
AC ARRANGEMENT
♦These. 2 parts are attached
IO CTU 204- Pin
IO CTU 206- Clamp
0 CTU 207-ClampingBolt(2) 1
0 CTU 2 08-Gjrease Seal (21
IO CTU 209- Clamp Nut (2 )
PLATE 1
Spindle
Ball
Sheave
SE-668-A SE-669-A
(21
/Pi /ft ./ft /jfi
Page 40
I
10 CTU 211 - Motor
Sheave
A: 10 CTU 21 2 -Motor
Sheave
Drive
Sheave
M
N
\
VO
PLATE 2
Page 41
jOCTU 360-FootstocK Lever
0 CTU 361 -Spring Wire.
0 CTU 3 6 2 - Spind I z
10 CTU 36 3 -#3 Plain 10 CTU 3 64 - Center. 10 CTU 365-
IS mu ^-Bellows Insulator. 10 CTU 3 6 7 - Bel lows Rind 10 CTU 3 68 - Bel lows
10 CTU 369-
Water Cap
D.T.H.Support Pin
Handle
b
\
W 00
\
\
\
/
/
\
I
\
/*'
0CTU 370-L
10 CTU 371-Spindle Clamp
~
10 CTU 372 - RacK Pinion
10 CTU 3 7 3 -Knob
oc
K Pin (2.]
LEVER PINION TYPF
Rod
10 CTU 3 7 4
10 CTU 3 7 5 -
10 CTU 3 7 6-
Eccentric Shati
10 CTU 37 7 -
Spind I z Lever
10 CTU 3 78 -
Lever
I 0 C T U 3 6 3 -** 3 \
Plain Handle}*
o
-
Sleeve
Stud-(
A *
rr.
©
Eccentric
Shaft
/
&
r
/
\ r
\ \
\
1
\ -10 CTU 389-Spindle Clamp- Rear
10 CTU 390-Clamp (2.)
\I0 CTU 391-
' 10 CTU 39 2-Body Cover QasKet
10 CTU 3 9 3 -Body Cover
-10 CTU 39 4 -Washer 12.)
\ 10 CTU 380-LinK
\
\ I0CTU 3 8 I - P
10 CTU 382-Spindle Spring
10 CTU 38 3-Spindle Stop Col la r
I0CTU 3 8 4 -Spind le Cap 00 CTU 385-Body X
CTU 38 6-Spindle Clamp-Front
x10 CTU 3 8 7-
10 CTU 388Pinion
Housing
I 0 C T U 3 7 9-
s.
•'l
:
Pin
%
!
/
/
i
n
m.
lever crank tvpf
Clamping Bolt 12)
FootstocX
Body
<
§
m
§
IWFrffMi
FOOT5TOCK
PLATE 3
m m m m /n
/7\ /T\ /Ti /7\ ;T\
SE-676-A SE-677-A
m
/■Pi
Page 42
;
IOCTU 155-Upper BracKet
I0CTU 15 6-1" Sate Valve
IOCTU 159-Stud
IOCTU 157-Wheel Quard
IOCTU 151-Pin 10 CTU 152-Wheel Quard
W
o
*10 CTU 153-Balance
*10 CTU 154-Screw
(^•Attached
----------------
Cover
Wei ght
-----------
------------
------------- Parts)
IOCTU 160-Swivel Joint-Short IOCTU 161-Shoulder Stud
IOCTU 158-Lower BracKet IOCTU 167-Stud
10 CTU 163-Water Spout
IOCTU 164-Wheel Sleeve IOCTU 165-Wheel Flange
i
i
: 1
,
i
!
'
;
IOCTU 166-Mist (quard
.
\yp
EEL GUARDS PARTS
SE-666-A
PLATE 4
SE-667-A
*
i
d
Page 43
1
10 CTU 100 10 CTU 103 10 CTU 102
10 CTU 101- 10 CTU 114- 10 CTU 113
'
■u
o
!
10 CTU III, 10 CTU 112. 10 CTU 105 1
0 CTU 139
10 CTU 115
10 CTU 116
10 CTU 119
10 CTU 120____
10 CTU 122
10 CTU 121
10 CTU 126
10 CTU 125
10 CTU 108
10 CTU 109_
1
0 CTU 138
__
-----
10 CTU 117
-----
10 CTU 118
104
_
__
10 CTU 142
1
0 CTU 143
10 CTU 144
10 CTU 145
10 CTU 131
10
1
0
CTU
10 CTU 134
10 CTU 136
10 CTU 135
-10 CTU 137 10 CTU 141
10 CTU 146
10 CTU 110
10 CTU 140
JOCTU 127
10 CTU 128
10 CTU 129
10 CTU 123
10 CTU 130
CTU 132
133
WHEEL SLIDE £ PARTS
PLATE 5
/IT/H /If /Tf /ffi m /n m m m m m m m n
SE-758-A
SE-759-A
Page 44
i
!'
;
-u
WHEEL SLIDE AND PARTSPART NAMES
Name
10 CTU
100 Shoulder Screw
101 102
103 Connecting Link 104 Safety Arm Lever 105 107 Thrust Yoke Stud 108 Fixed Thrust Bracket 109 Pump Drive Shaft 110 Lubricating Pump Bracket 111 Hood Clamp 112 Stud 113 Oil Thrower 114 115 116 Thrust Yoke
117 Spindle Box Nut (Inner)
118 119 Thrust Shoulder Ring
120 Thrust Ring 121 122 Thrust Ring Stud (Upper)
123 Spanner Nut
Restricting Arm Washer
Wheel
Spindle Spindle
Spindle
Wheel
Part
Slide Cover (Left)
Box Nut (Outer L.H.) Box Case (Large)
Box (Large)
Slide
10 CTU
Pump Worm
124
125 Thrust Ring Bushing 126 Thrust Ring Stud (Lower) 127
Wheel
128
Spindle
129 Worm Gear 130
Wedge
Spindle Box Case (Small)
131
Oil Tube
132
133
Wheel
134
Wheel
135 Spindle Box (Small) 136 Spindle Box Nut (R.H.) 137 Spindle Sheave 138 Sight Glass Retainer
Locking Ring
139
Cover
140
141 Vee Belts 142 Filter 143 Holding Plate 144 Check Valve Gasket 145
Valve
146 Manifold
Part Name
Slide Cover (Right)
Belt Guard
Bolt (Long)
Sleeve Washer Spindle
i
! !
1
: 1
1
i
i
s
i
i
4
Page 45
IOCTU 225 ’OCTU 226-Tapar Pin (2) IO CTU 227 -Indicator Support ’OCTU 2 28-
OCTU 229' Adj usting 5crew
OCTU 230'Arnn
IOCTU 231- Spring
-Control Lever Shatt. _____
St'd.Straight- Pin_
____________
IOCTU 2-4 3 - Levzr End
IOCTU 244-
\
OCTU 245 - Bearing
"OCTU 246- Cam 5
IO CTU 247- Pin z'OCTU 24-S-Adjus+ind Screw
IO CTU 249-Thirust YoKe
\
Spring
S-tud
CTU 232
IOCTU 2 3 3 - Wheel Slide
4
S5
IO CTU 235 - Thrust YoKe Pin
IOCTU 2
IOCTU 2 37-ThrusT Ring
IO CTU 23Q-ThrustYoKeBracKe+
IO CTU 2 39 - Spring Pin (2)__,
-
Control Lover.
IO
CTU
234-Norton
36-Thrust
IOCTU 2-40-
IOCTU 24-1- Spring
IOCTU 242-Thrust Ring
YoKe
Stud (
Upper
Connecting Rod'
________
Stud (Lower
Knob
__
)
/IO CTU 250- AdjusTin g
O'
---------------------- \lOCTU 251-Eccentric Cap TiO CTU 252-Drive Collar TlO CTU 253'
.IOCTU 2
-IOCTU 2 5 5- Lubrica+ing
YlO CTU 250 "Worm Gear ''UO
CTU
.IO
__
IOCTU 2 59-Oil Pump Body
IOCTU 2
IO
IOCTU 202- Pump Qear-
)
2
CT u 2 50-Oil Pump Spacer
CTU 2 01 - Oi I Pump Cap
Screw N
Eccentric
54-ThrustWasher
Pump BracKeT
ut
57-
Pump Drive Shaft
BO-Pump Qear-Idler
Driver
RECIPROCATING K SHOULDER GRINDING ATTACHMENT
SE-670-A
PLATE 6
SE-671-A
-
/ff /n /n M M M M M m m m m m
Page 46
IOCTU 1012 -
10 CTU 1013 - CluTch Cear
IOCTU 1014 - Ball Bearing
IOCTU 1015 -
10 CTU 1000-PisTon RacK Pinion 10 CTU 1001 -Tru-Arc Ring 10 CTU 1002-Taper Pin 10 CTU 1003-Piston RacK Pinion
Bushing -OuTer.
10 CTU 1004-PacKin
«
IOCTU 1005-Vim PacKing
s
______
_________
Supporting
Internal
Bal I
Clu"tch Qzar
Bearing
IOCTU 1016-Pisfon IOCTU 1017-Cylinder BracKeT 10 CTU 1018-Spring
)
'
t
: ;
i
IOCTU 1006-Taper Pm
IOCTU 1007-Cylinder End Cap 10 CTU 1008-CiasKe-t IOCTU 1009-PacKing Supporting Ring 10 CTU 1010-End Cap 10 CTU 101
1-Laminated Shim
---------------
---------------------------
-------------
%
10 CTU 101 9 - Pinion
IOCTU 1020-Ball Bearing Cap
IOCTU 1021-CluTch Shaf+
IOCTU 1022-Piston
10 CTU 1023 -"O" Ring
IOCTU 1024-
By Pa5S Body
CROSS FEED CYLINDER
SE-760-A
PLATE 7
\
SE-761-A
Page 47
1
10 CTU 1025. 10 CTU 1026 10 CTU 1027- 10 CTU 1028 10 CTU 1029
10 CTU 1030 10 CTU 1031. 10 CTU 1032 10 CTU 1033
i
-10 CTU 1034
■10 CTU 1035 10 CTU 1036
10 CTU 1037 10 CTU 1038 10 CTU 1039 10 CTU 1040 10 CTU 1041 10 CTU 1042 10 CTU 1043 10 CTU 1044 10 CTU 1045 10 CTU 1046 10 CTU 1047 10 CTU 1048 10 CTU 1049
§
10 CTU 1055
10 CTU 1056
10 CTU 1057
"-I0CTU 1058
-10 CTU 1059 10 CTU 1060
10 CTU 1050
10 CTU 1051
10 CTU 1052
10 CTU 1053
10 CTU 1054
10 CTU 1065
10 CTU 1061
110 CTU 1062
10 CTU 1063
10 CTU 1064
WHEEL TEED APRON
PLATE 8
SE-762-A SE-763-A
Page 48
WHEEL FEED APRONPART NAMES
: :
i
■u
in
10 CTU
1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038
-
1039 1040
'•1041
1042
'1043
H044
•1045
Part Name
Stop Block Index Gear Collar Clutch Lever Bushing Torrington Needle Bearing
Feed Screw Shaft
No. 1 Machine Handle Clutch Lever
Wheel Pawl Lock Spring
Stop Arm Stud
Handwheel Bushing
Handwheel Stud
Wheel Feed Index Handwheel
Clutch Spool Seal
SleeveShort Spool Pinion Spring No. 4 Machine Handle Locking Ring
Feed Apron
10 CTU
'1046
Hub Cap
- 1047
-1048
"1049
1050 Shoe 1051 Bell Crank 1052- 1053 Detent Plunger 1054 Bell Crankshaft 1055 Spring 1056 Feed Screw Gear 1057 Apron Cover (L.H.) 1058 Stop Arm 1059 Detent Insert 1060 Screw 1061 Knob
-1062 Index Pinion
H063 Pin
-1064 Detent Plunger
. 1065 Spring
Detent Ratchet Detent Ratchet Housing Index BushingShort
Bell
Part Name
Crank Bracket
i
1
*
: : ;
:
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4
Page 49
10 CTU 2074
10 CTU 2075 -Washer
/ 10 CTU 2076 -Spring
/ /
/ /
jJ/
/
ISnOI /C'O^U
Ip
-Adjustment Stud
^
77 'Solenoid BracKet
2078 10 CTU 2079
^ :
§
m
-Solenoid Stop BlocK
-Cushion Plunger
2080-Cylinder Cushion Cap
o
Ft
l
I0CTU 208I - Cylinder 10 CTU 2082 - Piston
10 CTU 2083 - Cylinder Head 10 CTU 2084 - Piston Rod 10
CTU 2085 -Piston Rod Sleeve
1
o
10 CTU 2086-Valve Piston spring' 10 CTU 2087-Oil Seal
O'
10 CTU 2088-Valve 10 CTU 2089-Valve Piston 10 CTU 2090-PacKing Support Ring-lnnen 10 CTU 2091-Vim PacKing (3) 10 CTU 2092-PacKing Support Ring-Outer_
____________
Sleeve
;
_____
____
___________
10 CTU 2093 10 CTU 2094 10 CTU 2095
10 CTU 2096-Feed Screw (quide
10 CTU 2097 10 CTU 2098
10 CTU 2099-Oil WicK
-Oil Seal
-Piston Rod Support
-Ball Bearings (2.)
-Feed Screw Quide Arm
-Half Nut
_______________
_____________
______________
____
____
__
110 CTU 2100 - Oil Seal
10 CTU 2101 -Feedscrew Sleeve
10 CTU 2102 - Ball Bearing
10 CTU 2103 - Feed Screw
110 CTU 2104 -Oil WicK Strap
FEED SCREW £ PARTS
PLATE 9
SE-1006-A SE-1007-A
Page 50
10 CTU 5 64-"0"Ring
10 CTU 540-End Plate I0CTU54I -Lever 10 CT U 5 42 I0CTU 543 -Compression Spring I0CTU 544-Switch BracKet
-Special Nut
_____________
___________
_______________
_________
10 CTU 565-Valve- Selector
I0CTU 552 -Wheel Feed Piston
I0CTU 553-Valve Body
10 CTU 554
I0CTU 556-Valve
-Needle&ChecK Valve Body
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WORK S COOLANT
STOP-START UNIT
a
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10 CTU 557-Cap
/l0 CTU 558- Selector Valve Body
/lO CTU 559-Manifold
: .
:
i
:
r
10 CTU 545-Push Rod^/ 10 CTU 5 51-PicKer Feed Piston 10 CTU 546- I0CTU 547-Lever 10 CTU 548-Piston-Right I0CTU 549-Knob 10 CTU 555-Valve 10 CTU 563-Needle Valve Nut
Piston-Left
_____________
_____________
___________
----------
____
COMBINATION VALVE
PLATE 10
SELECTOR VALVE
I
___
10 CTU 560-Valve
___
_I0 CTU 561 - Adaptor
______10 CTU 562 -Pin
.
SE-6I4-A SE-6I5-A
A
Page 51
-
1
10 CTU 5 32 - Enclosure _____ I0CTU 533 -Screw
10 CTU 534 - Valve Sleeve
10 CTU 535 -Screw 10 CTU 5 36 -Valve Bodv
10 CTU 537 -"o"Rind
10 CTU 538 -Valve 10 CTU 5 2 0 - Knob 10 CTU 510 -Operating Lever Extz^Ii^
10 CTU 525 -Recess Cover 10 CTU 526 -<Sib Screw 10 CTU 512 -Switch Panel
-U
m
10 CTU 513 -Opera-Kind Lever
10 CTU 5 10 CTU 530 -Spring
10 CTU 516 -Pin
11
-Operating Lever Suppoif-
___________
________
______
__________
_____
______
~
______
__
10 CTU 515 -Indicator Pin 10 CTU 514 -Instruction Plate 10 CTU 52 10 CTU 5 I 8 -Operating Lever Button 10 CTU 527 -Spring 10 CTU 51 7 -Operating Lever 5leeve_ 10 CTU 528 -Apron Cover-R.H.
9
-Switch Plunger
PUSH BUTTON APRON
IyffY-ftY-ft
__________
________
PLATE 11
jfi. jfi. /ft
______
_________
________
______
CYCLE CONTROL MECHANISM
M M M M
j
M M
SE-768-A 5E-769-A
Page 52
IOCTU 1
^10 CTU 1067-Valve Adaptor ^_J
HljOCTU 1069-Bleeder Valve Body (Z) ____ /-'^-^JO CTU 1071 -Adaptor (Z)
i
10 CTUI082-Dowel Pin(4)\\
10 CTU 1083-Pin
10 CTU I084-"0
sO
10 CTU 1085-Wiper Strip
10 CTU 1086-PacKing
-------------------
Ring PacKing.
--------------
066-'O'Ring
(Z)
0 CTU 1068-Bleeder Valve (Z)
.IOCTU 1070-
--------
"o" Ring PacKing
_I0 CTU 1 _I0 CTU 1073-Cylinder End Cap d~H.) __
10 CTU 1074- 0 Ring PacKing
_
IOCTU 1075-Tru-Arc
_
10 CTU 1076-Cylinder
__
IOCTU 1077-Base Trough (L.H.)
_
IOCTU 1078-Piston (2)
^ IOCTU I079-"0" Ring PacKing
IOCTU 1080-seal Ring «o
^JOCTU 1081
IOCTU 109 7-Table Cylinder BracKet
O
o
o
072
-Piston Rod
-Special Screw (Z)
)
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10 CTU 1087-Tie Rod BracKet (2) 10 CTU 1088-Base Trough (R.H.) 10 CTU 1089-Cylinder End Cap (R-H.)
10 CTU 1090-Tie Rod
10 CTU 1091-PacKing Cland (Z) 10 CTU 1092-Spanner Nut (4)
10 CTU 1093-Instruction Plate IO CTU 1094-Stop Plate (2) 10 CTU 1095 10 CTU 1096-Pin (2).
-Piston Rod BracKet
(2).
---------------------
----------
------------------
------
--------
-------
-----------
---------
---------------
-----
HYDRAULIC TABLE TRAVERSE CYLINDER
PLATE 12
r5;
m
f-9
m
SE-865-A
SE-866-A
'
Page 53
1
IOCTU 2 0 0 O-Reverse Lever S+ud
10 CTU 2001 -Reverse Lever Knob 10CTU 2002 -Reverse. Lever Stop Pin 10 C TU 2 00 3 10 CTU 2004-Knob
IOCTU 2005-Half Cap/^ IOCTU 2006-Needle Bearing (2Y / |
IOCTU 2 007-Start-StopValveCapCovzr f
Ln
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10 CTU 2008-Valve Operating Lever_^-Jv^
10 CTU 2009-Pin (2.)
10 CTU 2010-Valve Spool (2. 10 CTU 2011 -Valve Spool Stud
10 CTU 2012 -PacKing 10 CTU 20 10 CTU 2014-End Cover(L.H.)__
-Reverse Lever ________
________
1 3
-"O"
Ring Bushing.
__________
_____
%
)_
_____
Stud
10 CTU 2015 -5tar+-5top piston Bumper
IOCTU 2,0 I 6
IOCTU 2017 - 51-art-Stop Valve Cap
/ ^10 CTU 2 018 -"O Ring (2)
10 CTU 2 019-"O'Ring (2)
10 CTU 2020-Tru-arc Ring ^10 CTU 2021- Manifold
/ IOCTU 2 02 2
// JO CTU 202 3 - Start-Stop Valve Piston
-Table Control Valve Body
-Start-Stop Valve
IOCTU 2024-Table Reverse
Valve Sleeve
10 CTU 2 02 5-Table Reverse Shuttle
Valve
10 CTU 2026-Table Reverse
Dwell Valve
10 CTU 2 02
10 CTU 20 2 8 -Tru-arc. Ring 10 CTU 2029-Valve Cap 10 CTU 2030-End Cover (R.H. 10 CTU 20 3 I-Slow-down Valve Piston 10 CTU 20 3 2 - Slow-down Valve Sleeve
7 -Table Dwell Piston
Valve
Sleeve
)
fL fLfh'R^
/ff/fl1,/f!/ff
TABLE CONTROL VALVE
PLATE 13
MjRMM Jf.Jl.
M. J
SE-867-A SE-868-A
Jfl
M.
J! J!.M M M M M
Page 54
IOCTU 2044-Valve Cap (
I0CTU 2045 -"o" Ring (2)
IOCTU 2046-By-Pass Valve Sleeve
IOCTU 2047-Pin
(&
1
10 CTU 2033-Needle
Valve Stem (4)
10 CTU 2034
Valve Cap (4)
10 CTU 2035-Instruction
Plate
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IOCTU 2048 -Spring
fa
10 CTU 2049-Valve Cap(R.H.) 10 CTU 2050 10 CTU 2051 -By-Pass Shuttle 10 CTU 2052-0" 10 CTU 2053 -Knob 10 CTU 2054-Needle Bearing (Z)
IOCTU 2055 -Instruction Plate
-By-Pass Valve Body
Ring
L.H.
)
ill
I
10 CTU 2036-Needle Valve Knob Body (4)
JO CTU 2037-Knob (2)
_I0 CTU 2038-Knob 12)
10 CTU 2039-Indent Plate 10 CTU 2040-Start-Stop Lever. 10 CTU 2041-Oiler 10 CTU 2042-Wire 10 CTU 2043-Start-Stop Plunger-
______
MAIN CONTROL VALVE PARTS
PLATE 14
IOCTU 2056- Piston
Valve YoKe
IOCTU 2057 - YoKe
10 CTU 2058
Lever Sha-ft
Lever
-Start-Stop
SE-869-A
SE-870-A
| !
I
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Page 55
1
Ln
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IO CTU 47 o- 'O CTU -4
10 CTU -499-
Bal I
Bearing
IO CTU 472" Screw IO CTU
IO CTU 474-Ball Bearing
IO CTU 47 5-Ball IO CTU 500-Boll Bearings(H-)
473-
Re-fainer
IO CTU 47 S - Clu-t-cn
IO CTU 477-
IO CTU 478
IO CTU 47 9
Machine. Handle-.
|
"Handwheel
A
Washer/
/ / \
Ring (Upper).
Br
g. Cap/
Apron Cover
Clutch Qear
-Shipper ForK
______
__________
i
IO CTU -4-98-
10 CTU 4QO-Rinion Sha-fT
IO CTU 4Q| - Bali
'MTU
IO CTU 4eB-Xcller
/ IO CTU-4-S4-idler ShafT
/ IOCTU
1
Z
IO CTU 4S 0
Bail
402- IdlSto*
485- Bal I r
Bea rind
Gear
(Inner)
Bearing Cap (Lower)
-
Ball
Bearing Re-fainer
Ring (Lower)
m
■IO CTU 501- Bal I Bearing
T
J\
t
%
7
0.
_____
____
w.
/
\
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, 'IO CTU 494-RacK Pinion
IO CTU 495" Pi si-on
IO CTU 49 S - Spring
IO CTU 497
' IO CTU 502-
-IOCTU 487- Plug IO CTU 488- RacK Pinion
-
---------------------------
IO CTU
Ci
-
-------------
IO CTU -49 O -
v
----------------------------------
.10 CTU -49 1 - Spacing
IO CTU •492-Spacing
\
---------
10 CTU 493 "Pis+on Cushioning
489-ROCK
Spacing washer
-------------------
Shaft
Cylinder
Cap
Collar
Co liar
Spring
-
Hand Traverse-
Bal I
Apron
Beari ng
Pinion
SINGLE SPEED HAND TRAVERSE APRON
PLATE 15
SE-680-A
SE-681-A
ifl -M ifl JUi Jft M M-M.
Page 56
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W
4P4lV*iN*NtN6 W W¥lW«WWWlWi'
HM)E m EISA.
I C-00000 1944 I
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'•IMPORTANT
SERIAL NUMBER MUST APPEAR ON EVERY ORDER
I.I0CTU.-84O Clomp ScrowLstud) _IOC.TU.-836 Knob __|0 CTU-832 Tapped Bushing
IOCTU-860^)rK ShoeVerticol/
IOCT.U
-856 Virtual Shoe Holder-
I0CTU -859 Work Shoe- Horizontal/ ,
IOCT.U - 855 Horizontal Shoe Holder?
I0C.TU.~863 Adj
Screw
Bushing
IOCT.U-
868 Link Stu.d
IOCT.U-
IOCT.U
I0C.T.U:Q66 Clamp Spring*.
IOC.T.U.-Q67 Link
I0CTU.-853 Steodyrest Body..
/
864 Body Clamp
-865 Pivot Washer-
C\1
--------
---------
3
/
( /
----
/
STEADYREST TWO BEARING
10C.T.U-858 O0C.TU-86I Knob
\,
(§> I0C.T.U- 862 Clomp Lever
Ad).
IOC.T.U-854 Body Cover
10 C.T.U-B63Adj. Screw Bushing
I0C.TU.-869 Knurled Screw
lOCT.U-037 Ad)
r
I0C.T.U:86 I Knob
V
Straw Vertical
Screw
Horizontal
!
i
IOCT.U.
-037 LinK Stud
IOC.T.U.-B38 Pivot
ioc.t
.u
IQCXU-833Clamp Spring/
I0C.TU.-83I Dio Tool Holder Body.
-834 Body C
Wash»[
lamp
TABLE TYPE
MW
'S
I V "YN
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VIOCT.U -B35 Link
~*Y'0 CTU.-S33 Clamp L ever
AOJAA
IOC.T.U.-Q30 Dia. Mounted in Nib
/
- 6Y
V
FOOTSTOCK TYPE
I0CT.U S26 Knob
1OCIU:B20 ClonipScrewCStud)
_
I0C.T.U:825 Dia.Tool HolderBody
\
IOC.TU.-829 Diamond ShanK
^lOC.T.U.-827 Knurled Screw
i
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DIAMOND TOOL HOLDER
SE-724-A
5E-382-A
PLATE 16
;
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A
Page 57
1
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SECTION VIII. CROSS INDEX OF PART NUMBERS
i
m m
Part No.
)
i
i
1
100-146 151-167 180-210
211-213 225-262 271-302
360-394 470-502 510-538
Wheel Slide and Parts . Wheel Guard and Parts HeadstockA.C. Drive
HeadstockD.C. Drive
Reciprocating and Shoulder Grinding Attachment 6
Feed Screw and Parts ....
Footstock
Hand Table Traverse Apron Push
............................................
Button Apron and Cycle Control Mechanism 11
Unit
Plate Page
5
4
1
2
a
9
3
. 15
40 39 36 37 42 46 38 52
48
n
m
m m m
m
I
540-565
825-868
1000-1024 1025-1065 1066-1097
2000-2032 2033-2058
Please specify machine Serial Number with every inquiry or order!
Combination Valve
Diamond Tool Holders and Steadyrest Cross Feed Cylinder Wheel Feed Apron
Table Traverse Cylinder Table Control Valve Main Control Valve Parts
Please specify Plate Number on which a required part is shown
............................................
......................................
............................................
................................
......................................
................................
10 16
12 13
47 53
7
8
43 44 49
50 5114
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Form 1487-1P-12-51-3M
54
Printed in U.S.A.
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