Norton Type C Angular Wheelslide Grinding Machine - Manual Grinder

i k

/

7

NORTON

i

j

/

7,

/

]

]
]

]

/

/

/

/

]
]

Fi

/

]

/

/

/

/

/

10" TYPE C

ANGULAR WHEELSLIDE

1
J

GRINDING MACHINE

PLAIN and SEMIAUTOMATIC

10" & 14" L

INSTRUCTION & PARTS MANUAL

No. 1591-4

NORTON COMPANY

MACHINE TOOL DIVISION

WORCESTER. MASSACHUSETTS 0/606

1
1

I

I

i

NORTON

A

r

MACHINE TOOL DIVISION

f

WORCESTER. MASSACHUSETTS 0/600. U.SJ.

a

I
I
I
I
I
I
I

I

Due to improvements in design, these instructions may
not coincide in every detail with machines now in the field.
They were correct for the machines built at the time these in
structions were prepared.

10" TYPE C

ANGULAR WHEELSLIDE

GRINDING MACHINE

PLAIN and SEMIAUTOMATIC

10" & 14" L



r

r

I
I
I

r

N

orton

C

ompany

INSTRUCTION & PARTS MANUAL

No. 1591-4

W

orcester

. M

ass

. 01606 u.s.

FORM 1591-4 4.68-75

a

.

2

INDEX

SECTION I

Setting Up

Setting Up for Semiautomatic Grinding

On Receipt of Machine

Erecting Drawings
Lifting Machine
Setting Up Machine
Assembly of Parts
Wheel Guards
Wheel Drive Motor

Electrical Connections
Wheel Spindle Drive Sheaves
Vee Belts
Headstock and Footstock

Mounting the Wheel on the Sleeve . . . ,
Mounting Wheel on Spindle .
Rough Truing

Wheel Balancing
Spindle Lubricant Reservoir

Hydraulic Oil Reservoir
Ways Lubricant Reservoir
Grinding Coolant Reservoir

Oil Cups and Holes
Operation Experimenting

................................................................

................................................

.......................................................

.......................................................

................................................

..................................

..........................................

.........................................

..........................................

..........................................

.................................

...................

............................

........................

......................

..............................

........................

......................

...........................................

.............................

Page

5
5
5
5
5
6
6
6
7
7

..

7
7

7
8
8
8
9
9
9
9
9

12

SECTION 2

Unit Constructions

Tables and Taper Adjustment
Headstocks
Footstock

Wheel Feed Mechanism
Hydraulic System Principle

Hydraulic Table Traverse
Table Speed Control Dial
Hydraulic Wheel Feed Mechanism

Operation
Control Valve

....................................................

..........................................

.......................................................

..............................................

.. .. . .

...........

.. . . .

............

................

...................

...

16

16
16
19
19
19
20
20
20
20

INDEX (Continued)

3

SECTION 2 (Continued)

Wheel Slide Cylinder
Dashpot Unit
Dashpot Oil Supply .
Dashpot Check Valve

SECTION 3

Automatic Wheel Guard Type Truing Device

General Information . .

Initial Operation . . . . ,

Initial Truing
Details of Operation . ,
Fast Traverse
Fast Reversal
Automatic Down-Feed
Indexing
Maintaining Accuracy
Lubrication
Adjustments

SECTION 4

...............

...............

............

.............

...........................

....................

..................

.

.

Page

22
22
23

23

24
24
24
24

24

25
25

25
25
25
28

I I

I v

Adjustments and Maintenance

Wheel Spindle Lubricant Flow
Spindle Oil Leakage

Bleeding the Machine
Wheel Spindle
Wheel Spindle Bearings Adjustment
Wedge Bolts . ;
Bearing Temperature

Pump Unit
Filters

Front View of Machine
Rear View of Machine
Rear View of Machine - Guards Removed
Headstock
Footstock
Wheel Feed Mechanism
Hydraulic Wheel Head Traverse and Feed
Wheel Guard Type Truing Device - Nomenclature

Wheel Guard Type Truing Device - Parts
Rollers and Bearings in Truing Device
Wheel Spindle Unit

Wheel Guard and Wheel Sleeve .....................................

............................................................

............................................

.....................................................

ILLUSTRATIONS and PARTS DRAWINGS

....................................................................................

.....................................................................................

................................

..........................................

.................................................................

..........

............................

...........................

.........................................................

..........................................................

................

......................................................

...............

...............

.....................

34
34

34

36
36

36
37
37
37

4

IQ
11
15
17

18

21

26
29
33

35
38

11

4^

(l)Wheel -feed con+rol moves

slide in incrernen+s of .00005"

Turn coun+erclocKwise To

open belf ^uQrd cover

Heads+ocK
RocK pinion for

moving

head-

S+OCK

« vvvv

Push buttons,

C^yCle Contro

timer

- ■ «c*LJ

wheel -

\

’ >

Coolonf control lever

.Truing device

\ f*'-) Cycle

hand wheel

con+rol

lever

+ *7.-

Foo+s+ocK lever

.Foo+s+ocK

(3) Cjrindi

feed

valve

\

needle

’n^}

Time r

Push bu++ons

coolan+

& oi I

To ble, drive

hand

for

wheel

pump motors

.

i

. i

\ \Table

Yrable

'Table speed

reverse lever

con+rol lever

con+rol Knob

11

ON RECEIPT OF MACHINE

5

SECTION I

SETTING UP

P

i

f

F

P
P
P

P

Upon receipt of the machine, all crates and containers should be
removed with care and the entire shipment checked against the packing list.
Those items marked "X" indicate future shipment.

ERECTING DRAWINGS

An erecting drawing is shipped with the machine for the instruction
of the millwright in setting up. Care should be taken to provide ample clearance
both at the rear for servicing and at the ends for movement of the sliding table.

LIFTING MACHINE

The three point method of lifting should be used. Slings should be
placed around short bars at the ends and a long bar at the rear thrust into the
large cast holes in the base.

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 other easily damaged portions of the machine while lifting.

SETTING UP MACHINE

As will be seen from review of the erecting drawing previously
mentioned, the.machine rests on three pads cast into the base - one at each
end beneath the table and one at the rear. 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 using the table top or ways as planes.

G

f
f

r

PLACE THE MACHINE ON AS SOLID A FOUNDATION

AS POSSIBLE. DO NOT GROUT IN BASE.

ASSEMBLY

to the illustrations in this Manual if assistance is required in determining
their location.

OF

PARTS

Assemble all parts shipped separately with the machine. Refer

*

6

WHEEL GUARDS

Two types of wheel guards are supplied with these machines.
One of these types, which is supplied when a Wheel Guard Truing Device
is furnished, has provision for a fixed mounting on the wheel slide casting.
The other, which is the standard type, has a mounting which permits

backward adjustment of the wheel guard as the grinding wheel wears.

With the standard type two sizes of steel balls are used, the
larger going into the upper groove of the wheel guard way, while the
smaller run into the vee on the vertical side of the way at the bottom.
The large balls may be imbedded in heavy grease to hold them in position

while the guard is being run into place. Then the smaller ones can be fed
between the guard and the way, one at a time. Set screws in the ways are
then replaced to prevent the balls from rolling out.

WHEEL DRIVE MOTOR

If the wheel drive motor has been packed separately, it should
be mounted on the motor base of the wheel slide. Mount the drive sheave
on the motor arm, and put the vee belts in place.

Adjust the motor by means of the adjusting screw which moves
the motor base, and once the proper position has been determined, the gib
holding the motor base should be tightened down. Be sure this gib is

tightened before the wheel drive motor is started.

■

*

*

1

■

B
B
B
B

ELECTRICAL CONNECTIONS

The operating mechanism of the disconnect switch on the control

panel is interlocked with the enclosure doors. The door handle must be in

the "OFF" position before the enclosure doors can be opened.

Refer to the wiring diagram included in the control cabinet of the

machine when it is shipped.

Connect the incoming power lines to the terminals marked

"Customer's Connections" with a red tag on the disconnect switch. A yellow

tag

two of the incoming line connections.

attached to the control panel gives the proper voltage, cycle, and phase.

Check for correct wheel motor rotation and if not correct,

reverse

B
B
B

I
B

B
B

a

i

F

7

F
F
F

F
F
F

F

F
F
F

WHEEL SPINDLE DRIVE SHEAVES

Two spindle drive sheaves are supplied with the machine arranged
with standard equipment. These sheaves are stamped with the corresponding
wheel sizes with which they must be used. In mounting the spindle drive belts,
see that they are not too tight.

VEE BELTS

It is not necessary to apply a heavy tension to the vee belts since
this type of drive obtains its efficiency from the wedging action on the sheaves
and not through tension. Too tight an adjustment will shorten belt life. Tighten
just enough to prevent squealing.

HEADSTOGK AND FOOTSTOCK

Clean the headstock, the footstock, and their centers and center
holes. Be sure there are no nicks or burrs on the centers and that they seat
properly in their respective holes. Never move the head or footstock unless
the swivel table is clean.

MOUNTING THE WHEEL ON THE SLEEVE

The grinding wheel is mounted on the wheel sleeve and held in
place by a flange secured with socket-head cap screws. Blotters are supplied
with the grinding wheel and these should be used between the metal of the
flange and the wheel proper. Care should be taken in mounting the wheel so
as not to chip the edge of the hole. Do not force the wheel onto the sleeve^
to do so may crack it. In tightening the flange screws tighten one screw
until snug, then take up. the diametrically opposite screw snugly. Then
draw up the screw 90° from the others, and continue this procedure, taking
up a little at a time until all screws are tightened to 15 ft. pounds. When
mounting wheels see that all threads are free-running, clean, and rust free.

F

I

F
F

F
F

V

MOUNTING WHEEL ON SPINDLE

With the wheel mounted on the sleeve, the assembled unit should
be placed on the spindle nose. Before mounting, the taper of the spindle should
be carefully cleaned and the hole in the wheel sleeve should be thoroughly wiped
out. Should any dirt or grit get between these surfaces, faulty wheel action
will result.

With the wheel in place, fasten it securely with the nut and the
flanged washer provided for this purpose.
entered the keyway in the sleeve.

See that the key in the spindle has

8

I

ROUGH TRUING

When the wheel has been mounted on the spindle, a rough truing
operation is required in order that the wheel will be concentric with the
sleeve. The operator will be able to tell when the wheel is concentric with
the sleeve by the sound of the truing tool contacting the entire periphery
of the grinding wheel.

However, before this rough truing is attempted, we advise that

the operator be absolutely familiar with all machine controls and adjustments.

WHEEL BALANCING

After the rough truing operation, the assembled wheel and wheel

sleeve should be removed from the spindle, mounted on a balancing arbor,

and placed in a previously leveled set of balancing ways.

Remove the balancing weights from the circular groove in the

wheel sleeve, and allow the light and heavy points of the unit to find their
top and bottom positions respectively. Now replace the balancing weights
at right angles to these points and adjust by moving the weights equally and
gradually toward the top (light) side. When the unit will come to rest in
any angular position tighten the balancing weights, remount the unit on the

spindle, and retrue the wheel.

SPINDLE LUBRICANT RESERVOIR

i
I

i

■

I

■

I

n

■

The reservoir for the wheel spindle lubricant is within the spindle
housing. It is filled through the hole for the bayonet type gage. Fill this
reservoir with approximately 6-3/4 quarts of high grade spindle lubricant
of 50-60 S. U. V. at lOOOF.

Caution

When the wheel spindle is operating, a stream of

spindle lubricant of approximately 1/16" diameter
must be seen flowing behind each sight glass on
the spindle housing.

Should either stream stop, and will not resume

immediately upon adjustment of the cock in the supply
line running into the sight glass, stop the motor at
once, and locate and remedy the difficulty.

~ ~~

■

■

1
I

>

*

»

*

i

P'

i

9

HYDRAULIC OIL RESERVOIR

r
P

p

r

P

!

P
I*

P

?

The hydraulic oil reservoir is of the outside type and is
positioned at the rear of the machine. Fill this reservoir with approximately
30 gallons of high grade hydraulic oil of 150 S.U.V. at 100°F.

WAYS LUBRICANT RESERVOIR

The ways lubricant reservoir is also of the outside type and is
positioned next to the hydraulic oil reservoir at the rear of the machine.
Fill this reservoir with approximately 3-1/2 gallons of high grade ways
lubricant of the viscosity specified on the instruction plate attached to the
reservoir.

The wheel feed screw is automatically lubricated from this

reservoir.

GRINDING COOLANT RESERVOIR

The capacity of this reservoir which is in the base of the machine
is approximately 35 gallons.
to the product to be used other than it be free from soda. If a compound
that is mixed with water is to be used, it should be rich enough to prevent

rusting.

OIL CUPS AND HOLES

Locate all oil cups and oil holes on the machine and fill with

300 S.U.V. at 100°F. lubricating oil.

OPERATION EXPERIMENTING

Norton Company makes no recommendation as

P

■

I

V

With the machine ready to run, it is suggested that those to be

concerned with it become familiar with the operation and action of its
controls. Do this with no work between centers and with the headstock
and footstock spaced equally clear on both sides of the grinding wheel.
Bear in mind that table traverse is started with a pull and stopped with
a push of the table start-stop lever which is immediately to the left of
the normal operating position.
wheel head is controlled by the cycle control lever which is to the right
of the operating position. Pulling this lever out brings the wheel forward
and pushing it, retracts the wheel.

Bear in mind also, that movement of the

—

F11+e.r-hydraulic

Re. I i cz.t valve-

Reli<z.-f valve-
Filter

-

lubnca

H'ydrau 1

1 ubncattnd

+

ing

(

I O ) N<Z <2.cl le.

vo Ive. -for

.stand

Oil mani-fold

pipe

ic

O

Dash

Ways lubricant
i ma+ely 3 1/2. gallons

1000-12.00

5.

U.V. o+ 1

■feed

reservoir approK-

Pot

- -f a 5+

con+rol

circul

0 O ° F. - 15° pour

a+i n ^ Oil

poin-f

\

1

Hydraulic
approxima+ely
hydraulic oil of 150 5.U.V.

a-h

ioo°f

/

oil reservoir

.

/l

30

g'a 1 Ions

gm

n >

CUSHIONING]

-F

id

eed

V

a

lve

' • J*, '

D - Nut

Ft

A

A - 5+

and

P

i re

-Nut

..

N&487

H-*

12

I

SETTING UP FOR SEMIAUTOMATIC GRINDING

The comple'e routine for this setup is outlined here since this
is the procedure which should be followed when the machine is being set up
for the first time. It is assumed that those who will do this are now familiar
with the functions of the various controls.

1. With only the pump motor running, move the wheel slide to its

rearmost position by means of the wheel feed hand wheel. Centralize the head
and footstock approximately with relation to the wheel and have no work between
centers.

2. Fill the stand pipe A until it overflows through the drain pipe provided.
A needle valve 10 (page 10) for this purpose will be found on the oil distributing
manifold on back of the machine. When the stand pipe overflows, adjust the

valve to admit only a small quantity of oil.

3. Open cushioning feed valve B by turning it counterclockwise about

three turns.

4. Open grinding feed valve 3 (page 4) on front of machine the full amount

by turning counterclockwise.

5. Operate the wheel slide forward and back at about 10-second intervals
by means of the cycle control lever 2 (page 4), until all air in the system has
been displaced. This can be determined by removing the cover from stand
pipe A and operating the wheel slide until no air bubbles up through the oil.

I

I

>

CAUTION

Stand pipe will require refilling as oil displaces

air in dash pot system.

As slide moves forward, oil may squirt from stand

pipe with cover off.

On machines equipped with electric timer, have the

selector switch turned to HAND position.

6. With the wheel slide in the rear position, determine the amount of
fast traverse by measurirg the distance between the nut C and the sleeve
against which it bears when the slide moves forward. Reset this nut if

necessary to give the amount of fast feed desired. Always wind the wheel
slide to its rearmost position by the wheel feed handwheel when resetting

nut C.

—

I

p

13

*

P

■

■

f
f

f
f

;

f

P

SETTING UP FOR SEMIAUTOMATIC GRINDING (Continued)

7. Operate the wheel slide forward and mount an indicator so that the

plunger bears against some point on the wheel slide. Adjust the indicator

so that it will register about 3/16" of movement and retract slide.

8. Close grinding feed valve 3 (page 4) on front of machine, and valve B.
Then, open valve B slightly. Operate the slide forward and observe the
distance it travels at cushioning feed as registered on the indicator.

9. Set the rate of cushioning feed with valve B, and operate the slide
a few times. This feed should be slow enough to retard the slide without
shock but fast enough so that no time is lost between the end of the fast
traverse and the beginning of the grinding feed. Manipulating the slide
in and out now will show two distinct rates of feed; the fast approach and
the slower cusioning or deceleration feed.

10. With the feed slide forward, open grinding feed valve 3 (page 4)
about one-half turn and observe the distance the wheel slide feeds as
registered on the indicator.

11. To set the amount of grinding feed, again retract the wheel slide,
close the grinding feed valve 3 (page 4) and advance wheel slide with the
control lever 2 (page 4). The slide should stop with nut D clean of the
hardened collar ahead of it. If it is not clear, retract wheel slide and
screw nut D back until it does clear with the slide advanced. Now screw
nut D up tight and observe the reading on the graduations around it.
Then, back it off by half the number of thousandths to be ground from the
work. Open grinding feed valve 3 (page 4) and observe on the indicator
how much the slide advances.

P

f

I

r

r

l

t

I

REMEMBER MOVING NUT D BACK PERMITS A

GREATER AMOUNT OF FEED.

12. Adjust the rate of grinding feed with the grinding feed valve 3
(page 4). This may have to be altered later when a piece is ground.
the slide forward and backward a few times observing on the indicator
the amount of cushioning and grinding feeds.

13.

Now start the grinding wheel, the coolant pump and the headstock

motors, and true the grinding wheel.

Work

14

SETTING UP FOR SEMIAUTOMATIC GRINDING (Continued)

14. Put a work piece between centers, and bring the wheel slide forward
with the cycle control lever. Grind the work piece using the wheel feed
hand wheel 1 (page 4).

15. When the piece is ground to size, retract the wheel with the cycle

control lever 2 (page 4).

16. Grind a second piece automatically and check it for size, adjusting
the rate and the amount of grinding feed if necessary. Also note the time
required from the instant of pulling the cycle control lever 2 (page 4) and the
ceasing of sparking. This will be the cycle time.

17. Set the electric timer if the machine is arranged for an automatic

cycle. Cycle time adjustment is made by loosening a thumb nut, rotating
the inner dial and then tightening the nut. The inner and outer rings of the
dial are calibrated in units of time, the units on the outer dial being 60 times
the magnitude of those on the inner dial and the total time setting being the

sum of the two.

18. Set the selector switch to AUTO and grind a third piece_,checking

It for size and finish at the expiration of the automatic cycle.

19. Observe the time elapsing between the deceleration of the wheel

slide and the beginning of the cut, making sure the work piece has a
maximum amount of stock. For most efficient operation, the wheel
should begin cutting immediately the wheel slide is decelerated. If it
does not, move nut D FORWARD a few thousandths and grind additional
pieces automatically, correcting for size with the wheel feed index. Repeat

this procedure until there is io appreciable time lost between ceasing of
fast feed and beginning of grind.

Adjust nut D as necessary to obtain desired work size.

It should be borne in mind that the cycle as set on the timer

includes the rapid approach, deceleration, grinding feed and the die-out.
Hence, increasing the rate of grinding feed and leaving all other adjustments
undisturbed, will produce a longer die-out. Conversely, if the feed is found

to be too fast and is decreased with valve 3 (page 4), the wheel will retract
automatically before the cut is completed unless the time cycle is increased.

For semiautomatic machines arranged for manual control only,
no electric timer is provided.
work and terminates the cut with the main control lever when the gage

shows that the piece is reduced to the correct size.

The operator places a grinding gage on the

AS 2 3 2 - Drive. Sha+t 5heave

AS 2 3 3 - Drive Sha+i-

_

AS 2 3 4 - Eccentric Cap

AS 235 - Eccentric Ball

Bearing Sleeve
AS 2 3 6 -Ball Bearing^)
AS 2 3 7 - washer (2)

AS 2 3 8 -RacK Pinion__

.AS 2 4 7 - Motor

Sheave.

V

S 248 -Vee Bel-+

2 4 9 - Plugging

AS 250 -

Motor Bas

.Switch Sheave

/

.

/

1

v.

AS 2 3 6 -Ball

AS 2 52 -Cap

AS 2 51 -

Eccentric

Bearing Cap

- Drive

Sheave

AS 2 39

-Drive

Sheave

AS 240 -vee Belt's (5 I

*

AS 2 4 I -Body

*AS 242 -End Cover

AS 24 3 -worK Drive Pia+e<
AS 2 4 4 -Bali Bea ring

Retainer -Small
AS 24 5 -Heads+ocK Center ■
AS 246 -Washer (4)

SE- fake-A
SE-79 6-A

*Thasa2 parts ora attached

♦Thcsa 2 ports ora at+achad

AC

arrangement

—

AS 254 -Spindle
AS 2 55 -Bail Brg.

Re-tainer- Large

AS 2 56 -WorK

Sheave

'—AS 257 -Pm

Bearings (2)

AS 258

Ba 11

_ AS 2 59 -Clamp 12)

♦ AS 2 60 -Clamping Bolt(2

AS 2 61 -Cqrease Seal (2)

♦ AS 2 62 -Clamp Nut (2)

dr An by Harbcr t L

Rood

nlaine.

h-»

cn

16

I

SECTION 2

UNIT CONSTRUCTIONS

TABLES AND TAPER ADJUSTMENT

NORTON 10 x 36" Angular Wheel Slide Machines are built with

two tables, a sliding table which travels on the flat and vee ways of the base,

and a swivel table pivoted in the center on top of the sliding table.

A swivel adjustment is at the right end of the table and provides

a means for making taper settings. The graduated gib in connection with
this adjustment is intended as a guide only. 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 built, one dead and one live center.
In the dead center type, the center remains stationary and the work drive
plate revolves about it. In the live center type, center, and work drive
plate revolve as a unit.

The stopping and starting of the work drive motor is accomplished
automatically with the grinding cycle by means of a limit switch on the wheel
slide. 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
"Hand-Auto" is provided for this purpose.

I

I

Both the dead center and the live center types of headstocks are

driven directly through vee belts. Study of the headstock drawings in this
book will clearly show how, by means of eccentric shafts, the belts are
adjusted.

The ball bearings of both dead and live center headstock are

preloaded and prelubricated so that no attention is required.

The taper of the headstock center is #14 Jarno.

FOOTSTOCK

The footstock is the lever type with spring compression control.

The initial movement of the hand lever retracts the center. A further

movement of the lever locks out the center in its retracted position.

The footstock spindle is clamped by means of a large hand knob

on the front of the footstock body, and taper of the center is #14 Jarno.

1

i m m '

Bt

■

v

it

10 AS 18 7- Water Cap
1

0 AS 188-Bellows
10 AS 189-Bellows Insula+or
10 AS 190-Spring Wire

10 AS I 9 I - Center
I0AS 192 -#3 Plain Handle-
10 AS I 9 3 - D.TH. Support" Pin

_________

____________

_____

___________

10 AS 2 0 0-Bel lows Ring

10 AS 201 -Spindle

10 AS 202-Foo-ts-tocK Lever

10 AS 203 - Pinion

/ 10 AS 204-Pin

10 AS 194-RacK Pinion

10 AS 195-Knob

10 AS 196

10 AS 197-Washer (2)
10 AS 198-LocK Pin 12.)
10 AS 199-Spindle Clamp-Rear

SE-B I I -A
5E-8 I 2-A

-Spindle Clamp Rod

J

10 AS 2 10 - Body Cover

FOOTSTOCK

10 AS 205-Clamp (2)

10 AS 206-Body

10 AS 207- Clamping Bolt" (2)

10 AS 208-Spindle Clamp-Front-

10 AS 209 - Body Cover QasKe-t

Drwtj by H. Rand

V Fontaine.

7/20/51

00

10 AS I 4 I-Hand wheel Shaft-Short.
I0 AS I 42-Wheel Feedlndex_

I0 AS I 4 3
I0 AS I 4 4
I0 AS I 4 5
1

0 AS I 4 6-Pdwl Stud

I0 AS I 47-BraKe Plunger
I0 AS I

I0 AS I 4 9-BraKe Case
I0 AS I50-Screw
1

0 AS I 5 I -Index CranK

1

0 AS I 5 2 -Knob

1

0 AS I 5 3 -Knob

1

0 AS I 5 4

I0 AS I 5 5 -Bushing

I0 AS I 5 6-Spring (2)

I0 AS I 5 7-lndex CranK Pinion
I0 AS I 58-Index CranK Pin
I0 AS I 59-Pawl LOCK

I0 AS I 60
I0 AS I 6 I-Wheel Feed Pawl

SE-809

5E-8IO

-Wheel Feed Index Bushing-Smal'i'

-Index CronK Qnil I

-Wheel Feed Pawl
_____

-----

-

48-5pring

________

__

________

-Bushing

________

-Spring.

____________

_____

BracKet.

__

__

WHEEL FEED MECHANISM

AS I 6 2

I0

I0 AS I 63 -Bevel Qear Case Cover

i

0 AS I 6

/ I0 AS I 66 -Ball Brg. Retainer

-

Pawl (quard

4 -

Bevel G*ear Case

I0 AS I 65 -Bevel Pinion

I0 AS I 67 -Adapter Wasner

) AS I 6 8 - Bai I Bearing 62.)

I0 AS I 6 9 - Bevel <Sea r

7 0-Spacing Washer

I0 AS
I0 AS

*40 AS

*4 0 AS

I0 AS
I0 AS
I0 AS

I0 AS

MO AS I 8 5 - Roller Bearing

I0 AS I 86

7 I -Vertical Feed Shaft
7 2 -Friction
7 3-Ball Bearing
7 4 -index Sear Hub
7 5 -Index Sea r

7 6 -washer

7 7

-vertical Stand

7 8

-Vert. Feed Shaft Tube

7 9

-Wheel Feed Index
Bushing - Large

rThzse

Are Attached

\ MO AS I

\ I0 AS I 8 I - Feed Screw

4 0 AS I 82

\I0 AS I 8 3 - Ball Brg.Spacer

1

0 AS I 8 4 - Bevel iqear Nut

8

0 -

-Nut Brg. Adjustor

-Bevel Pinion

DRW(q BT H RAND

Washer

Brae Ket

NOTE

2. Parts

V FONTAINE

19

ll

!.

F
F

■

F
F

■

*

■

WHEEL FEED MECHANISM

A full diameter feed screw nut turning in preloaded antifriction

bearings moves the wheel slide when the grinding wheel is being fed

manually. The full nut revolves in a bath of oil.

Counterclockwise rotation of the wheel feed handwheel moves
the grinding wheel in towards the work by bringing the wheel slide unit
forward.

A positive stop and an indexing mechanism on the handwheel
provides for work size setting. There are 40 holes in the indexing
device, and each hole represents the amount of setting necessary to
obtain . 00005" of wheel slide movement. Rotate the indexing device
clockwise to set for the amount of wheel slide movement necessary to
obtain the desired reduction in the work.

The following table gives the wheel slide movement in both

the English and Metric Systems in operation of the wheel feed mechanism.

Settings

Each hole in Index
Complete turn of Index
Complete turn of Wheel

HYDRAULIC SYSTEM PRINCIPLE

The principle of the hydraulic system is to admit oil under a constant

pressure to the hydraulic units and control the speed of motion by regulating
the rate of discharge of the oil through exhaust ports. For maintaining this

constant pressure a relief valve is used. This valve, mounted on the discharge

side of the hydraulic pump, has a metal tag attached to it which indicates the

pressure at which the system should operate.

English

.00005"
. 002"
. 080"

Metric

.00125mm.
. 05mm.

2. 00mm.

C

(approx.)
(approx.)
(approx.

)

I

a
a

c

I

HYDRAULIC TABLE TRAVERSE

The table is driven by hydraulic power by two pistons in a single
cylinder which is securely fastened to the underside of the sliding table.
The hydraulic oil is delivered to a bracket at the end of the base, and thence
into a hollow piston rod. Escaping from this rod into the cylinder proper,
the pressure exerted against the end of the cylinder and the piston, moves
the table.

20

I

At the seme time, oil is displaced from the opposite end of the

cylinder, escaping through a throttle valve. Operation of this throttle
valve which is set by the numbered dial on the front of the machine, regulates
the flow of the displaced oil, thus providing the means of control of table
speed.

TABLE SPEED CONTROL DIAL

The numbers on the table speed control dial represent comparative
speeds only. An infinite number of table speeds are actually obtainable on
settings of this dial.

HYDRAULIC WHEEL FEED MECHANISM

This mechanism rapidly positions the grinding wheel and provides
the grinding feed when the machine is being operated semiautomatically.
It consists of a control valve which is actuated by a solenoid, a large
cylinder and piston arrangement which moves the feed screw and hence the
wheel slide, and a dashpot unit which is of the dual cylinder and piston type.

The dashpot unit is attached to the wheel feed piston cylinder
housing, and the piston rod of the latter extends through the dashpot unit also.
The dashpot is supplied with oil independently by a line coming from the oil
distributing manifold on the rear of the machine.

OPERATION

■

■

The operation of the wheel feed mechanism involves three or four

units and it seems advisable to discuss the operation of each unit separately.

In this explanation the schematic drawing on the fd. 1 owing page will be referred

to frequently.

CONTROL VALVE

The control valve is actuated in one direction by the solenoid and

in the other by the spring.
control valve piston is moved to the right by the spring so that pressure oil
from the control valve is allowed to go to the front of the wheel slide piston.

Oil in back of this piston is allowed to exhaust through the control valve.
When the solenoid is energized, the control valve piston is pushed to the
left and the action of the wheel slide piston is reversed. The exhaust

ports send the oil through a regulating cock in the exhaust line,

is used for regulating the fast feed of the wheel slide traverse, but at the
same time it prevents the wheel slide piston from contacting its extremity
of stroke with a harsh thumping blow. This cushioning effect eliminates

vibration.

As shown, the solenoid is de-energized, and the

This cock

I

I

v.

vl

■.

'M

rm m m m m m m

i

WHEEL

CONTROL

PRESSURE FROM PUMP

METERING NEEDLE VALVE

(ON FRONT OF MACHINE)

SLIDE PISTON

/

valve

:

FROM PUMP

RELIEF VALVE

(^RINDING) FEED

\Vx\\\\Vx\\\\Y/

wxKmA xfA

•

— EXHAUST

FILTER

©

CHECK VALVE

FILTER

PK

|tO TAN K

50LEN01Q

NEEDLE VALVE

{SET TO MAINTAIN OIL

LEVEL IN STAND PIPE)

103

r

©

MZm

t

DASH POT

\

UNIT

“

ir

n

104-

fang

TO TAN K

1

107

\\\V\\\N

THIS DISTANCE EQUALS

AMOUNT OF FAST TRAVERSE

109

THIS DISTANCE EQUALS

AMOUNT OF CUSHIONlNQ AND
QRINDINQ FEEDS COMBINED

102

1

STAND

PIPE

IOO

SCHEMATIC DRAWING)- HYDRAULIC WHEELHEAD TRAVERSE & FEED'N0R™c|0ByA^R5o^d

SE-806-C

SUPPLY [DID] REDUCED METERED FLOW ® EXHAUST PRESSURE 7/23/5

1 7 VFOn*tCH n<Z.

ACH

DO

22

WHEEL SLIDE CYLINDER

The movement of the wheel slide piston in the wheel slide cylinder

is controlled from the control valve and a movement of the piston will in

turn move the feed screw and hence the wheel slide body. As illustrated,
the mechanism is in the retracted position. On the forward movement, the
piston will move to the left for the distance for which the fast traverse nut
(100) is set as indicated on the drawing.

DASHPOT UNIT

R
R

R

The dashpot unit is actuated by nut (100) contacting the sleeve
at 102. This sleeve rides on and clears the threads of the piston rod and
contacts the piston depressor (103), which, in turn, moves the two dashpot
pistons. The movement of the wheel slide is rapid until the surfaces at
102 contact, and the two dashpot pistons are forced against the "dead" oil

which is in front of them. The two dashpot cylinders are connected by an
oil by-pass so that there will be an equal pressure in each cylinder. The
oil in front of the dashpot pistons is first forced through a needle valve

(104), which controls the rate of discharge through port (105). This gives
the intermediate or shoulder feed to the wheel feed mechanism. This port
is eventually closed as the dashpot pistons move forward and the oil goes
through the grinding feed rate control valve at the front of the machine.

At the instant oil pressure begins to build up in the dashpot cylinders,

pressure is also admitted to the top of the ball check valve 106 (this valve is at
the bottom of the unit) and this pressure forces the ball in the valve to seat.
After passing through the feed rate control valve on the front of the machine,
the oil returns to the stand pipe reservoir at the top of the unit, inasmuch

as pressure is still holding down the ball in the check valve 106. The feed
rate control valve on the front of the machine gives the final grinding feed
adjustment and is very easily regulated to produce the feed rate desired.

Finally, when the grinding cycle is terminated by the operator
pushing in on the cycle control lever or by means of the electric timing
device, pressure is applied at the front of the large piston in the wheel

feed cylinder in the manner previously described. Thus, the piston and

its attached rod, together with the nut (100), move to the right. This
allows the springs in front of the dashpot pistons to expand and thereby
move the pistons, the depressor (103), the sleeve (102), and the size
control nut (107) to the right. The distance the size control nut (107)

moves to the right is the total grinding and cushioning feed as indicated

on the drawing. Nut (100) which controls the length of fast traverse
will continue to the right until the large piston completes its stroke to
the right. During this backward movement, oil is drawn from the stand

pipe reservoir up through the check valve 106 and into the space to the
left of the two dashpot pistons.

Thus, the dashpot unit is ready for the

I

R

■

I

p

23

P
P

■

P

II
P

IV

■

P
P

P

■

next grinding operation. At this point there will be a space at 109.
space at 109, however, does not necessarily have to be of the same size
as the space at 102, since the large piston can be made to move a greater
distance than the pistons in the dashpot unit.

DASHPOT OIL SUPPLY

The dashpot uses the same oil over and over again, but in order
to insure a full oil supply for this system, a supply line is connected to
the stand pipe. This supply line comes from the oil distributing manifold
and the valve on this line will be found on the manifold. When the oil pump
motor is first started this valve should be opened slightly until the oil level
in the stand pipe reservoir reaches the overflow pipe. After this level
is reached, the valve should then be nearly closed so that a slight trickle
of oil is allowed to flow into the reservoir at all times. The overflow
pipe leads back into the reservoir and the oil entering the stand pipe can
be checked by the amount of oil flowing from the overflow pipe.

DASHPOT CHECK VALVE

This check valve 106 is at the bottom of the dashpot unit. It has

a seat into which a steel ball fits when the pressure is coming from the

dashpot pistons. When oil is drawn back into the dashpot cylinders, it comes
up through the check valve and raises the ball from its seat. If, then, there
is any difficulty in obtaining a slow grinding feed, it is possible that oil is
leaking by this check valve because of a loosening of the check valve seat
caused by the continual reversing pressures set up by the dashpot movements.
When inspecting this valve, it is advisable to examine the contacting surfaces
of the ball and the seat to see that they are smooth and free from any dirt
or grit. The ball and seat are lapped together here at the factory to assure
a tight fit, free from any irregularities through which oil might escape.

This

I

P
P

P

P

I

24

SECTION 3

I

AUTOMATIC WHEEL GUARD TYPE TRUING DEVICE

GENERAL INFORMATION

As the name implies, this device provides automatic truing of

the grinding wheel or wheels. An auxiliary manual means of controlling

the device is provided for setting up purposes. A selector switch in the

push-button station provides either automatic or manual control,

the selector switch set at "Manual" the device is operated by two push

buttons mounted on the rear of the device.

INITIAL OPERATION

In initial or experimental operation of the Wheel Guard Type

Truing Device, set the selector switch to "Manual" and make sure that
the diamond in the device is raised sufficiently so that it will not contact
the grinding wheel before such action is intended. Raise the diamond
with the small hand wheel on front of the device, and use the "door" in

the wheel guard to observe that proper clearances exist. With the
diamond clearly above the grinding wheel, run the device back and forth
by operating the push-buttons on the back, until the manner of operation
is understood.

INITIAL TRUING

For initial truing of the grinding wheel, continue to operate
the device manually, and bring the diamond into light contact with the
grinding wheel by hand. Feed the diamond very lightly at each reversal

of the device by use of the small hand wheel "R" as shown on page 26.

With

I



DETAILS OF OPERATION

In normal operation of this device, the Operator touches the
push-button labeled "Truing Start", located in the push-button station.
This energizes solenoid valve "A". Energizing this valve allows pressure

oil into the left-hand side of the truing slide hydraulic cylinder for movement
of the slide. At the same time, oil on the right-hand side of the cylinder
exhausts through speed-up valve "B" and through the needle valve mounted

on the rear of the device.

FAST TRAVERSE

When the diamond truing tool moves from its rest position, the

right-hand
the exhaust oil to flow freely through speed-up valve "B".
truing slide a fast traverse from the rest position of the diamond tool to the
edge of the grinding wheel. On reaching the wheel, the speed-up dog rides
off the plunger and closes the speed-up valve "B" With this valve closed,

the exhaust must pass through the needle valve which gives the required

truing speed to the tool slide.

speed-up dog "C" depresses the speed-up valve plunger to allow

This gives the

I

H

25

FAST REVERSAL

■» '

a
a

a

When the diamond reaches the opposite edge of the grinding wheel,
tne left-hand speed-up dog "D" depresses the plunger which again opens
passage through speed-up valve "B" and the slide goes through fast reversal
back to the edge of the grinding wheel. The reversal is accomplished by the
truing slide actuating limit switch "E" which is mounted on a slotted bar
fastened to the top of the mechanism. This action de-energizes the
solenoid and reverses the hydraulic pressure from the left-hand to the
right-hand side of the truing slide cylinder. Oil on the left-hand side
of the cylinder now exhausts through the speed-up valve "B" and through
the needle valve.

AUTOMATIC DOWN-FEED

At the end of the first pass, while the slide is going through its
fast reversal, diamond picker feed ratchet "F" is actuated by ratchet crank
actuating adjustment "G". This gives diamond holder "L" the desired
amount of automatic down-feed. (See "Adjustments" on page 28).

At the end of the return pass, the diamond picker feed ratchet
"F" contacts ratchet crank actuating adjustment "H" which feeds down the
diamond. The slide then comes to rest and is set for the next truing
operation.

INDEXING

a

■

a

I

*

■

*

*

1

The Operator rotates the indexing mechanism on the wheel feed
hand wheel clockwise, after the truing operation, a sufficient number of
holes in the index to equal the amount trued from the diameter of the

grinding wheel. This compensates for the reduction in wheel diameter.

MAINTAINING ACCURACY

To maintain accuracy of truing, keep the rollers of the device
tight. The dove-tail gib must be adjusted to give a snug sliding fit on the
ways

.

LUBRICATION

Oil the rollers and ways frequently to obtain the maximum

efficiency of the device.

26

*

i

I

■

>

>

■

■

■

■

■

I

»

«

SE-343B

1

I

27

I

■

«

■I

a

i •'

■

a
a

a
a

NORTON AUTOMATIC WHEEL,
GUARD TRUING DEVICE

A - Solenoid Valves

B - Speed-up Valve

C - Right-hand Speed-up Dog

D - Left-hand Speed-up Dog

E - Limit Switch

F - Diamond Picker Feed

Ratchet

G - Ratchet Crank Actuating

Adjustment (Right-hand)

H - Ratchet Crank Actuating

Adjustment (Left-hand)

J - Adjusting Stop Screw

(For right-hand movement

of main hydraulic piston)

SE-343-B

K - Booster Cylinder*

L - Diamond Holder

M - Main Form Bar

N - Main Form Bar Follower

O - Booster Bar Follower*

P - Detent and Ratchet Lock-out

R - Diamond Manual Adjustment

Handwheel

S - Rise Index B arf-

T - Booster Bar*

U - Booster Limit Switch*

V - Auxiliary Speed-up Dog

(For two-wheel setup only)

a

1

a

..

a
a
a

i

W - Adjusting Screw - Rise

Index Bar

*These parts are furnished only when

-the truing operation requires addition
of the Booster Arrangement to the Device,
and this is when the truing action involves
horizontal and vertical traverse of the
diamond tool.

28

■

ADJUSTMENTS

Vertical Adjustment of
Diamond Holder

This adjustment is made by Handwheel "R".

Position of Slide at Rest

This position is set by adjustment of Adjusting Stop

Screw "J".

Distance of Fast Traverse

The distance of fast traverse from the rest position
to the edge of the grinding wheel is determined by the location
of right-hand Speed-up Dog "C".

Truing Speed

The truing speed is controlled by the needle valve

mounted on back of the device.

Distance of Fast Travel
at Reversal

This distance is determined by the location of the left-

hand Speed-up Dog "D".

Point of Reversal

1

■

1

1

K

1

3

■

3
3

This point is determined by the location of Limit

Switch "E".

Amount of Down-Feed

The amount of automat ic down-feed is controlled by
Crank Actuating Adjustment "G" on the right-hand side and by
"H" on the left-hand side.

Slide Motion - Vertical Plane

To adjust slide motion in the vertical plane, swivel the

mechanism on its base.

Slide Motion - Horizontal Plane

To adjust slide motion in this plane, swivel the truing

slide on the pivot in the base.

3

1-
I

3

1

!

N

a

r70

109'^V

S.EIOI9-A

%

I

NORTON WHEEL HEAD

MOUNTED AUTOMATIC TRUING DEVICE

"66

V

26

#—29

*42

9-«

Drwn by KL.RaT\d

lO/V/JI

CO
CD

NORTON AUTOMATIC WHEEL GUARD TRUING DEVICE

Code No.

1
2
3

4

5
6
7

8

9

10
11
12
13
14
15
16
17
18

19

20

21

22
23

24

25
26

27

Req'd,

1

4

1

2

1

3

1
1
1
1

3

1
1
1
1
1
1
1

1

2

1

3

1

3

1

4

1

Identification of Parts on Drawing SE-1019-A

Part Name

Cylinder Bracket
Screw - hex hd-3/8xl-l/2 *

Cylinder
Screw - hex hd cap-5/8x2

Spring
Screw - soc cap - 1/4x5

/8

Valve Cap

Piston

Valve Rod

Front End Cap
Screw - soc cap-1/4xl/2
Switch Bracket
Nut - hex - 3/8
Tee Bolt
Ratchet Crank Knockout
Nut - hex - 3/8
Tee Bolt
Ratchet Feed Bracket

Nut - hex - 3/8

Tee Bolt
Tee Slot Bar

Screw - soc cap-

1/4x1-1/4

Cylinder Bracket Key

Screw - flat hd mach-l/4x5/8

Thrust Plate

Screw - soc cap-3/8x3/4

Tool Slide

Code No.

28
29
30

31

32
33

34

35
36

37

38

39
40
41
42
43
44
45
46
47
48
49

50

51

52
53

54

Req'd.

1

2

1

4

1
1
4

1
1
4
1

2

1
1
1
1
1
1

8

4

8

4

4
12
12

1
1

Part Name

Piston Rod

Nut - hex - 5/8

Packing Gland & O-Ring

Screw - fil hd mach-10-24xl/2
Garlock Packing
Cylinder Head

Screw - soc cap-5/l6-16pxl

Piston
Form Bar Bracket
Screw - soc cap-5/l6-16pxl

Form Bar Support

Screw - soc cap-3/8xl-l/4

Adjusting Block

Screw - soc cap-5

/16x5/8

Adjusting Screw Vertical

Nut - hex -1/2

Stud

Tool Slide Cap
Screw - soc cap-3/8x3-l/2
Tool Slide Cap Cover

Screw - rd hd mach-10-24x5/16

Bushing
Eccentric Short

Needle

Bearing

Roller
Sleeve

RoHer Guide

oo

O

* See Note at end of Listing on Screw Pitch.

'

/

/1

Identification of Parts on Drawing SE 1019-A

r m m

Code No. Req’d.

55
56

57
58
59
60

61

62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84

85
86
87

8

1
1

2

1

2

1

1
2
2
4
1
2
2
2
1
1
1
1

2

1
1
1
1
1

4

1
1
1

2

1
1
1

Part Name

Screw soc cap-5/l6xl-l/4
Roller Guide

Follower

Screw - soc cap-3/8x3-l /2

Key

Screw - flat hd 8-32x5/8

Gib

Gib Screw

Eccentric Stud
Dog - R.H. & L.H.
Screw - soc hd cap-5/l6xl-l/4
Steady Bracket
Screw - soc cap-3/8xl-l/2
Washer

Tapered Pin
Steady
Screw - soc cap-5/16xl-l/4
Spring
Nut
Spanner Nut
Gear

Pin
Ratchet Wheel
Ratchet Crank
Collar
Screw - soc cap-5/l6x5/8

Sleeve Cap
Sleeve Bushing
Diamond Nib Holder
Screw - soc cap-l/4xl/2

Nib Holder Bar
Sleeve Bushing
O-Ring Packing

Finger

Code No. Req'd.

88
89

90

91

92
93

94

95

96

97
98

99
100
101

102

103

104

105

106
107
108
109
110
111
112
113
114
115
116
117
118
119

1
1

1

2

1
1
1

2

2

1
1
1
1
1

1

1

1
1
1

2

1
1
1
1
1
1
1
1
1
2
1
1

Part Name

Wiper Gland
Diamond Nib

Spring Bracket
Screw - soc cap-5/I6xl

Pin
Spring
Pin
Spring
Short Pawl and Long Pawl

(Sold only in Pairs)
Shoulder Screw
Eccentric

Pin
Shoulder Screw
201 McGill Ball Bearing
Spacing Washer
Eccentric Bushing

Stud

Spacing Washer

Pinion Bracket
Screw - soc cap-3/8xl

Plunger
Knob
Spring

Hand Wheel

Pin

Pinion Shaft

Index Gear

Handle

Bracket

Screw - soc cap-3/8xl-1/4

Screw - soc set-3/8x2-l/2

Screw - soc set-3/8x2-l/4

CO

Identification of Parts on Drawing SE-1019-A

CO
CO

Code No.

120

121
122
123
124

125
126
127
128
129

Unless otherwise

Req'dL,

1

2
6
1
3
1
1
1
1

2

Part Name

Guard
Guard Guide
Screw - oval hd-10-24xl/2

Mist Guard
Screw rd hd-10-24x3/8
Form Bar (Mach. Serial No. Req'd.

Washer

Screw hex hd cap-3/8xl-l/4

Limit Switch Stop

Screw - soc cap-1/4xl/2

specified, screw pitch is as

follows:

1/4-20, 5/16-18, 3/8-16, 7/16-14, 1/2-13,

5/8-11,

3/4-10

)

M' ■ ■

/

i

£

il

il

,L

172

■ 1

V,

1

'

NOTE

O

4* .

ALL NEEDLE BEARING (5l) AND
ROLLERS (S2) ARE THE SAME
IN ALL PLACES.
ECCENTRIC (SO) WITH BUSHING

(49)

IS

MARKED A ON DRAWING.

IS USED IN ALL PLACES

173

o

I
I
I

MARKED B ON DRAWING.
ECCENTRIC STUO (63) IS USED

AS MARKED ON DRAWING.

USED IN ALL PLACES

STANDARD DOWELL

i

0

0

o

>/

0

&

0

27

SE-208OB

TOOL

SLIDE CAP

0

a

TOOL SLIDE

RAhlD

3/as/jj

placement op rollers

AND BEARINQS. NORTON

WHEEL GUARD TRUING

DEVICE______________

co

CO

34

«

SECTION 4

ADJUSTMENTS AND MAINTENANCE

WHEEL SPINDLE LUBRICANT FLOW

A small pump, driven by a spiral gear from a worm on the wheel
spindle, pumps the wheel spindle lubricant from the reservoir within the
housing, through a filter, and thence through sight glasses and into each
bearing. The flow should be clearly evident at all times in the sight glasses.

It is important that the flow to each bearing be adequate, but not
so much as to cause overflowing. A stream of oil approximately 1/16"
diameter to each bearing is ordinarily sufficient to lubricate these bearings

provided that the flow is continuous.
shut off.

Adjust the flow if necessary, by the cocks in the supply lines
running to the sight glasses from the filter. Also see that the filter,
which is positioned for easy view, is given necessary attention.

SPINDLE OIL LEAKAGE

Should there eventually be evidence of this leakage by reason of

overflow from the ends of the spindle bearings to the outside of the wheel
slide body, it does not necessarily mean that too much oil is being supplied
to the bearings. If the leakage persists after the oil flow is adjusted to run
at an approximate 1/16" diameter stream, it is probably due to plugged

drain off outlets or too loose or improperly seated outer spanner nuts on

the wheel spindle bearings.

The flow should never be completely

■

■

■

■

■

'I

■

i

■

■

■

1

■

If the seating of these nuts is improper, it is in all probability
due to dirt or grit getting between the spanner nuts and the surfaces against
which they should seat, or because burrs at the ends of the wrench slots
prevent proper seating. A careful cleaning or the removal of the burrs with

a fine file will ordinarily remedy this difficulty.

BLEEDING THE MACHINE

It is desirable to "bleed" the machine if it has been standing idle

for some time, or if evidence exists that air ha-s gotten into the hydraulic

system.

To do this, pull out the plungers located under each end of the

sliding table, and start the pump motor. With the plungers open and the

pump motor operating, oil in the table cylinder is sent back through the

>

I

■

I

s

\)

min mi

10 AS III -Oil Manifold
10 AS 112-Adapt-ing Sleeve.
10 AS 113-Spindle Box Case-Small

1

0 AS 114-Spindle Box Oil Plug-Small

10 AS 115

I0AS 116-Spindle Box Nut
10AS 117-Spindle Sheave.
10

I

0

10 AS 120-Pump Worm

10 AS 121-Spanner Nut- —
10 AS 122-
10 AS 123-Oil Tube -Upper u
10 AS 124-Spindle Box Oil Plug-Large

10 AS 125-Oil Tube (2)
10 AS

-Spindle Box-Small

AS 118'Hex Nut-

AS

119-Thrust- BracKet

Wedge Bol-t-Lond

126-Spindle

________________

___________

-------

---------------

Box-Large

. 2£-§8££

__

--------------

WHEEL SPINDLE

10 AS 127-Lubrica+ing Pump BracKet-

10 AS 128 -Worm Wheel Aux. Bearing

10 AS 129-Pump Drive Shaft-

10 AS 1

30 -Spindle Box

10 AS 131 -Worm Gear

10 AS 1

32 -Oil Scaleand Holder

10 AS 13 3 - Key (2)

10 AS 134-Washer (2)

10 AS I

35-Hex.

10 AS I 36-Wheel Spindle

10 AS I 37-

\I0 AS 138-Spindle Box NuT-Ou+er R.H.

10 AS I 39-Spindle Box Case- Large

10

AS 140-Wheel Slide

Nut-

Oil Thrower

DRWG BY H RAND

Nut--Inner

V FONTAINE

bp /SI

GO

cn

36

flexible
to the reservoir. Keep the plungers open for a minute or two.

table, and be sure to shut off the pump motor before attempting to close
the plungers. This is to insure against the table moving before the operator
is ready to have it do so.

hose attached to the end of the sliding table, thence through tubing,

Be sure to close the plungers before attempting to operate the

>

a
a

a

WHEEL SPINDLE

The grinding wheel spindle runs in long, hard bronze bearings,
tapered on the outside diameter. Spanner nuts on the inner and outer ends
of the bearings hold them rigidly in place and provide a means of adjustment.

Two wedge-bolts are located in a slot in each bearing, and these keep the
bearings expanded and in alignment against the casings. The wedge-bolts
should be kept snug at all times, except when making bearings adjustments.

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 advisable that
such adjustments be made only when the need has been definitely proved.

In making an adjustment, it is suggested to 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 loose bearing,
which would be cooler, is naturally the one to adjust first.

To adjust a bearing, remove the housing cover and loosen the

outer spanner nut. Then loosen the wedge bolts from this same bearing.
Now tighten up cautiously on the inner bearing nut, remembering that
one-eighth revolution of the nut reduces the bearing diameter by approximately
.001". With the bearing drawn into its case a suitable distance to effect the

desired adjustment, loosen the inner spanner nut. This move is important.

The bearing will remain at the point to which it has been drawn. Now tighten
up 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 tightened,
tighten all the spanner nuts and replace the housing cover.

a

■

i

1

■

■ i

i

'■-i

■

s

■

>

■

I

«

WEDGE BOLTS

The wedge bolt tightening operation is extremely important. The

wedge bolt nuts straighten up the bearing in its case and to do this effectively
the outer and inner bearing nuts must be loose. After this is done, tighten
up the outer and inner bearing nuts firmly, but not too tightly.

on the nuts will set up strains in the bearings which may lead to trouble.

Do not pound on the wrench with a hammer, and under no circumstances

Hammering

«

I

*

I

r

I

I

■

»

'I

n

R
H

n

H

should a set or punch be used in adjusting these spanner nuts, since these
tools will cause a peening action which in time might cause oil leakage from
the bearing.

BEARING TEMPERATURE

Bearings should never be adjusted when they are cold,
the machine be in need of bearing adjustment, allow it to run for some time
until the bearings warm up. A bearing, if adjusted when cold, will often

seize the spindle when the latter is allowed to run.

PUMP UNIT

The lubrication and hydraulic pump unit is positioned outside the

rear of the machine where maximum accessibility is afforded. Attached
to this unit are two pressure relief valves to set the pressure of the
hydraulic and lubricating oils. Metal tags attached to each valve indicate
the pressure at which each system should operate.

FILTERS

On the discharge side of both the lubrication and the hydraulic
oil pumps are filters. These should be checked periodically and given such
attention as may be necessary.

A strainer for the hydraulic oil is located in the suction line of the

hydraulic pump in the hydraulic fluid reservoir. This should be checked
periodically to prevent clogging.

Should

37

>

H

I
H
i
I

I

I

PLEASE SPECIFY MACHINE SERIAL NUMBER WITH

EVERY INQUIRY OR ORDER!

CO

co

10 AS 100-Wa+nr Pipe BracKet
10 AS 10 1 -Wheel (quard (

10 AS I 02 -Wcr+er SpouT.
10 AS I 0 3 -Screw

10 AS I 04
10 AS 1

-Shoulder S"tud(2)

05 -Balancing

We ig h+

______

L.H.I

/

’

10 AS I 06 - Waiter

Pipe BracKeT

I

0

A S I 0 7 -

10 AS 10 8-Wheel Sleeve Flange

10 AS 109 -SocKeT Type Cap Screw (81

10 AS 110 -Wheel Gjuard Cover

Whee I Sleeve

SE-792-A

SE-793-A

WHEEL GUARD & WHEEL SLEEVE

DRW^ ETf H. RAND S/^-/S\

V-FONTAINE