Delta Specialty/Delta/Delta-Rockwell/Rockwell Rockwell 6"" De Luxe Jointer Operators Guide Jointers

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ROCKWELL6/1 DELUXE JOINTER

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The 6" Deluxe Jointer is light in weight, ruggedly
designed, and has a large working capacity. This ma-
chine is accurately assembled and equipped for use in
sash, door, furniture, and cabinet factories, contractors,
box manufacturers, pattern, wood'!V0rking, and main-
tenance shops, schools,. and many other woodworking
and industrial plants and shops.

It can be used for the following operations: Jointing
edges of stock, jointing ends of stock, jointing warped
pieces, jointing thin stock, jointing narrow stock, rab-
beting, beveling, taper cutting, stop chamfering, and
many other additional operations.

The jointer is so named because of the type of work
it is designed to do, namely the jointing or planing of
edges on materials so that they can be glued or joined
together. The jointer is sometimes erroneously re-
ferred to as a planer, but the machine differs from a
planer in that it is designed to work the edges of mate-
rials rather than plane surfaces.

Maximum depth of cut is
width of cut is 6 inches. The overall length of the work
table is 42% inches. The overall dimensions of the
machine are: 14 inches wide, 47% inches long, and
33Y2inches high on our steel stand,.

% inch. The maximum

OPERATORSGUIDE

418-06-651-000 1

DATED: 1-60

IMPORTANT

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Rockwell Jointers are carefully tested and inspect-

ed before shipment, and if 'properly used will give

Fig. 1. Jointer With Steel Stand.

perfect results. However, certain adjustments are
neceissary in service, and if you are to receive the
utmost from your machine, it is imperative that you
read the following instructions carefully.

There is considerable risk in operating a jointer, con-
sequently the operator cannot be too careful. Under no
conditions should an inexperienced operator attempt
to operate the machine without first using scrap pieces
of material to get the "fed" of the machine.

MACHINE UNITS

The Unit No. 37-220 consists of the following stand-
ard parts furnished with the machine: Safety cutter
head complete with New ,Departure Bearings and
housings, matched set of three high-speed steel knives,

front safety knife blade guard complete with tension-

ing mechanism No. 37-807, a guide' fence which can be
tilted 45 degrees to the right or left and can also be
moved across the entire width of the tables, and

clamped at any position, and wrenches for adjusting

the machine.

Accessories which may be purchased as additional
equipment are: Matched set of three high-speed
steel knives No. 659, safety knife blade guard with

pi~ot pin and complete with tensioning mechanism

No. 37-807, 7" motor pulley No. 5700, pressed steel
belt and pulley guard No. 661, V-belt with 58.310

inch outside circumference No. 560, pressed steel

machine stand complete with screws, nuts, washers,
and a wrench for assembly No.50-406C, dust chute
only No. 50-800, caster attachment No. 49-363.

Refer to the photographs. drawings, and Table I

to identify the parts mentioned in the following
instructions.

CONSTRUCTION FEATURES

The base, front. and rear work tables are made of

sturdy gray iron castings to produce. maximum
rigidity between these parts. The front and rear
tables are finished ground after assembly on the base
casting. This operation assures the true alignment
necessary for accurate work and is a feature found

on larger and more expensive machines only.

The cutter head runs in two single row sealed and
shielded ball bearings, which are pre-lubricated for
their entire Ii fe. It has three high-speed steel knives
which can be easily adjusted and securely locked in
the dovetail grooves of the cutter head.

The safety knife blade guard gives maximum protec-
tion to the operator at all times. The tensioning mecha-
nism enables the operator to give the correct tension to
the safety knife blade guard for any desired operation.
See Fig. 3.

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The guide fence is easily clamped to the machined
way of the front table casting. The guide fence can be
moved the entire width of the table and clamped in

position in a minimum amount of effort and time. See
Fig. 4. It also can be tilted to any desired position

up to 45 degrees to the right or left. See Fig. 5. This
fence guides the work to the full depth of the front
work table past the revolving knives of the cutter head

and well onto the rear table.

The raising and lowering mechanisms of the' front
and rear tables are operated by hand-wheels with a

free turning hand grip, and which are c()nveniently
located in the front of the machine, one on the right

machine since continuous duty work can easily be
accomplished. Always use 3 phase power whenever

it is available.

Fig. 4. Showing Fence and Start of Material.

The motor speed with 60 cycle power and 1725 rpm.
will run the cutting head at 4500 rpm. This speed is
obtained with a 27'4" cutter head pulley No. 5275 and
a 7" motor pulley No. 5700. Please specify when or-

. motor shaft.

dering the motor pulley the correct bore to fit the

For 50 and 25 cycle current, use a 1425 rpm motor,
which will run the cutter head at 3700 rpm. This
speed is obtained with a 27'4" arbor pulley No. 5275
and a 7" motor pulley No. 5700. Plcase specify when
ordering the motor pulley the correct bore to fit the

motor shaft.

Use V-belt No. 560 which has an outside circum-

ferenf:e of 58.31" in conjunction with th~ above motor

and arbor pulleys when it is mounted on our steel
stand. Consult your Rockwell dealer if you need a
belt of any other length to fit special conditions.

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Fig. 3. Adjusting Safety Knife Blade Guard.

hand side and one on the left hand side. See Fig. 6.
The rear table can be locked on the right side in the
rear of the machine at the desired height by means
of a square head set screw. See Fig. 18. The front work
table can be locked at any desired height by means of
a lock stud with a hand knob on the right side. in the

~~Te_ar of the table casting. See Fig. 18.

The depth scaie-Iocated on the base casting on the
front of the machine and the tilting angle-scale lucated-
on the fence segment are accurately graduated and
have been made very legible for making any desired
setting required. See Fig. 3 and 7.

To compensate for wear of the front and rear
tables in relation to the base casting, we have incor-
porated into this machine gibs to maintain its orig-

inal tight sliding fit at all times. These gibs can be
drawn up by means of headless set screws on the

right side of each table casting. See Fig. 8.

MOTORS, PULLEYS AND V-BELT

For light duty work a Y:!h.p. motor will furnish

ample power for this machine. For medium duty
work a Yz h.p. motor will be more effective. Use a
constant speed motor.

In commercial and industrial plants and shops, we

recommend a 7'4 h.p. motor be purchased with the

ASSEMBL Y

Wipe the protective coating thoroughly from

all parts of this machine. Unpack the other items in

the separate cartons which come with the jointer and
wipe the protective coating from these parts.

In choosing a location for the machine be sure to

allow enough clearance in front of and behind the

work tables for jointing long pieces.

Slide the guide fence in the machined way of the
front table casting and clamp it at any desired posi-
tion along the width of the work tables.

Havin-g" decided upon the _ar.!angement most suit-
able for your needs, fasten the base to the machine
stand, using the proper hexagon head cap screws

into the holes provided in the base casting.

Before installing the motor on the machine stand,
make sure it rotates in the right direction. The cut-
ter head must rotate forward on top. If your motor
runs in the wrong direction, reverse it according to

the manufacturer's instructions, or in the case of a
double shaft motor, turn it end for end.

The correct tension of the V-belt is such that the

V -belt can be flexed approximately 1 inch out of
line, using finger pressure midway between the cut-
ter head pulley and the motor pulley.

Mount the motor pulley on the motor shaft with

its hub extending away from the motor and tighten

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Fig. 5.' Tilting Fence 45°.

it in place. To prevent excess wear and ioss of
power, the V-belt must run true. Place a straight

edge across the faces of the pulleys and shift the
motor pulley on its shaft until it is in line and
tighten its set screw. Place the- V-belt over the arbor

pulley, then stretch the V-belt over the motor pulley.

POWER CONNECTIONS

Before connecting the motor to the power line, be

sure the electric current is of the same character-
istics as stamped on the motor name plate.

Do not connect the motor to a circuit which will

be overloaded. If an extension cord is used, be sure

that the proper size of wire is used when connecting
the machine to the power line to obtain proper volt-

age. Using too small a wire will cause an excess loss

of power. All line connections should make good
contact. Runningon low voltage will injure the motor.

Wipe all bright parts frequently with a clean cloth,

applying a small portion of light machine oil to pre-

vent rusting. ;

The cutter head runs in two single row sealed and

shielded New Departure ball bearings, which are

pre-lubricated for their entire life.

Fig. 7. Showing Angle Scale.

Fig. 6. Showing Raising and Lowering Hand-Wheels.

LUBRICA TION

We suggest using a good grade of light grease on
the steel adjusting screws for the raising and lower-
ing mechanisms of the front and rear work tables.
Occasionally apply a few drops of light machine vil
to the gibs on the right side of each work table so
the tables will slide freely in relation to the base
casting.

Fig. 8. Adjusting Gibs.

OPERATING ADJUSTMENTS

The controls and adjustments described below are
important for accuracy and convenience in various
operations. Follow these directions for best results.

Rear Table and Knife Adjustment

Accurate cuts are possible only when the knives of
the cutter head are parallel to the work tables and
project equally from the cutter head. Upon receiv-
ing this jointer it is best to check this alignment.

To check this alignment proceed as follows: Raise
the rear table by means of the hand-wheel on the left
side of the base casting until it is exactly level with
the steel knives of the cutter head at their highest
point of revolution. Place a steel straight edge on the
rear table, extending over the cutter head as shown

in Figure 9. Rotate the cutter head by hand. The
blades should just touch the straight edge. If a knife
is too high or too low at either end, loosen the screws
which lock it in position lightly. and shift the steel

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STEEL STRAIGHT EDGE

REAR TABLE

METHOD FOR CHECKING REAR TABLE ELEVAtiON

AND KNIFE ALIGNMENT

Fig. 9.

blade until it just touches the straight edge, then
tighten it securely.

Raise or lower the rear table as required by turning

the hand-wheel. After it has been set at the correct
h~ight, it should not be changed, except for special

operations such as stop chamfering and after sharpen-
ing the knives.

If the rear table is too high, the result will be
shown in Figure 10: the finished surface will be
grooved. If the rear table is too low, the work will be

gouged at the end of the cut as shown in Figure 11.

As a final check of the rear table adjustment, run
a piece of wood approximately 8 to 12 inches long

slowly past the knives of the cutter head; it should
rest firmly on both machined surfaces of the work
tables and the machined surface of the guide fence as
shown in Figure 12, with no open space under the

finished cut.

After this adjustment has been properly made,
lock the rear table in position by tightening the
special ,square head lock SCrE:Won the right side of
the rear table. In addition we suggest tightening the

gib screws of the rear table.

After th e steel knives have been removed from the
clltter head, care must be used in re-setting them.

Re-Setting Knives

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REAR TABLE Too HIGH

Fig. 10.

REAR TABLE Too Low

Fig. 11..

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REAR TABLE AT CORRECT HEIGHT

Fig. 12.

Fig. 13. Showing Guide Fence.

Each knife blade should be placed in its groove, so
the rear edge of the bevel on the knife projects t16
inch beyond the surface of the cutter head. Slip the
knife lock bar into place and tighten the hexagon
head set screws lightly. Adjust the knives for a true
cutting circle, using the straight edge as described

under "Rear Table and Knife Adjustments." Tight-
en all lock screws securely. We suggest jointing the
knives lightly before cutting any stock.

Adjusting the Gibs

The machined female dovetail slide of the front
and rear table castings ride in relation to the ma-

chined male dovetail slide of the base casting. On
the right side between each table and base casting
we have incorporated a steel gib to take up all play
between these machined surfaces. This adjustment
is carefully made at the factory, but we suggest re-
checking each table before operating thi~ machine to
see if any play does exist.

If the front and rear table is too hard to be raised

or lowered, or if the tables are too loosely set, an
adjustment is needed. To make this adjustment pro-
ceed as follows: Loosen or tighten all of the cone
pointed gib screws provided on the right side of the

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We suggest the operator take a trial cut of'18 inch .

deep on a piece of scrap stock, then adjust the pointer
of the scale by loosening the round head machine screw
which attaches it to the front table casting and setting

Fig. 14. Sliding the Fence.

base casting approximately
loosen or tighten each set screw the same amount to
obtain a good tight sliding fit between the table and
the base casting. We suggest the operator tighten
the uppermost set screw of the table first, then the
bottom set screw, and finally all of the intermediate

set screws.

~ turn each. Be sure to

it exactly at the
it in place. This adjustment will enable the operator
to make the depth of cut needed by reading it directly
from the scale since it is accurately calibrated.

This adjustment must be made each time the
knives are sharpened or if new knives have been
placed in the cutter head.

18inch mark on the scale and tighten

Raising and Lowering Tables

Each work table can be raised or lowered the amount

needed independently of one another. To raise or lower
the front work table, first loosen the hand knob on the

right side of it. The table can then be raised by turn-
ing- the hand-wheel which is located on the left side
and in front of the table casting, to the left and lowered
by turning the hand-wheel in the oppos.ite direction.
See Fig. 18. The pitch of fhe adjusting screw on which
the raising and lowering mechanism rides is such that
one complete turn of the hand-wheel moves the table
approximately 1/32 inch. After making the adjust-
ment needed, lock the table in position by tightening
the hand knob on the right side of the table casting.
See Fig. 18.

The rear work table can be raised or lowered by
first loosening the special square head lock screw on
the right side cf the rear tahle casting. See Fig. 18. To
raise or lower the rear table is accomplished in the
same manner as raising and lowering the front table.

Be sure to tighten the special square head set screw on
the right side of the rear table casting after the proper
adjustment has been made.

Fig. 15. Tilting the Fence.

Depth of Cut

The amount of material removed by a single cut

can be any thickness up to ~ inch. For most jointing

operations the depth of cut is controlled by raising

or lowering the front work table the amount needed,
using the hand-wheel on the left side of the table
casting.

fig. 16. Adjusting Se9ment Stop.

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Guide Fence Adjustme!"ts

Mount the guide fence on the front work table by
sliding the cross slide plate into the machined way
of the front table casting. This fence is convenient-
ly used for jointing the edges of stock, jointing thill

stock, jointing short stock, rabbeting stock, beveling
stock, tapering stock, and many other similar opera-
tions. It guides the work the full length of the front
table, past the cutter head well onto the rear table.
See Fig. 13.

The fence can easily be locked at any positiOl.

across the width of the front work table. To release
the fence so it can be moved to the desired position,
grip the dual control handle firmly and move it out

until it engages the acorn nut, turning the handle

toward the left until the acorn nut becomes loose. See

Fig. 14. With a firm hand grip on the top of the fence

body, slide the fence to the desired position. The guide

fence can only be slid to the right until it is parallel
with the right edge of the work tables. Clamp the
fence in the desired position by turning the dual control
handle, engaging the acorn nut, to the right.

The fence can be tilted 45 degrees to the left or
right. To tilt the fence to the left, grip the dual con-
trol handle with a firm hand, moving it inwardly
until it engages a hexagon nut and turn it to the left
to loosen the nut. With a firm hand grip on the top

of the fence body, tilt it to the desired angle. Turn
the dual control handle to the right, engaging the

hexagon' nut to lock it in position. See Fig. 15.

To tilt the fence to the right, grip the dual control

handle and move it inwardly until it engages the
hexagon nut and turn to the left to loosen it. With

a firm hand grip on the top of the fence, tilt it slight-
ly to the left and with the other hand, swing the stop
block, which is attached to the cross slide plate, to

the rear position until it is parallel to the fence body.

The fence can now be tilted to the right to any de-
sired position up to 45 degrees. Lock the fence in
position to the desired angle by gripping the dual

control handle firmly, engaging the hexagon nut and

turning it to the right.

tion scale. Make the settings in a similar manner as
described above.

After making the above settings, we suggest the

operator set the pointer of the tilted angle scale.
Clamp the fence in the 0 degree position. Loosen
the hexagon head set screw in the bottom of the

cross slide plate, which holds the pointer rod in posi-
tion, using the

the pointer to the 0 degree position of the tilt angle
scale. See Fig. 14. Tighten the set screw in the bottom
of the cross slide plate to secure the pointer in position.
The pointer will then indicate the correct angle to
which the fence is tilted, so the operator can easily read
directly off the graduated scale.

When jointing thin stock oftentimes referred to
as surfacing or planing the surface of stoc}t, we sug-
gest the operator attach a
wood face plate to the cast iron fence body. Use
three flat head machine screws through the recess
holes in the face plate and the holes in the fence
body. Place a nut on each screw projecting from the
right side of the cast iron fence body.

When the knives of the cutter head cannot be
properly sharpened to produce a nice smooth, clean

cut by the methods as described above, they must be
ground to a new bevel edge. In this case, or when
the bearings of the cutter head need replacement,

remove the entire cutter head with bearings and hous-

ings from the base casting and return it to the fac-
tory. To remove the cutter head with bearings and
housings from the base casting back out the hexagon
head cap screw from each bearing housing which is

fastened to the machined curved seats of the b?se

casting.

% inch hexagon wrench and setting

~ inch wide auxiliary

Cutter Head Repairs

This fence has a positive stop at the 0 degree posi-
tion or when the machined surface of the fence body
is at right angles to the machined surfaces of the
front and rear work tables. It also has positive stops
at the 45 degree positions on the right and left side. See
Fig. 15. The 0 degree position can easily be checked Dy
setting the fence at this position and checking it with
a combination scale. If the fence is not exac'tly at
right angles to the surface of the work tables, make
the correction by turning the special headless set
SCrEW in the direction required the amount neces-
sary. After the setting is correct, lock th~ stop
screws in position by turning the special headless

set screw in the front face of the fence segment. See

Fig. 16. In a similar manner the stop screws at the 45
degree position can also be adjusted. In these cases,
we suggest jointing two adjacent faces of a piece of
stock. being ca(eful to keep the first face firmly against
the fence while the second face is being jointed. Check
the angle between the finished faces with a combina-

WHETTING KNIVES

Fig. 17

We suggest the customer purchase an additional
cutter head assembly complete with bearings and
honsings. The extra cutter head assembly is neces-
sary to keep the machine in operation when the orig-
inal cutter head is sent back to the factory for re-

pairs, such as, replacement of bearings, grinding and
r:esetting the knives. The additional cost of an extra

cutter head assembly is justified when maximum
production of high quality type work is required.

When mounting the cutter head to the base cast-

ing of the jointer, be sure the machined curved seats
of the base casting are cleaned free from any d"ust,
dirt, or grease to obtain a goon tight fit.

After considerable use, the knives will become dull

and it will not be possible to do accurate work. Unless

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badly damaged by running into metal or other hard
material, they may be sharpened as follows:

Whetting Knives

Use a fine carborundum stone; cover it partly with

paper as indicated in Fig. 17. to. avoid marking the

table. Lay the stone on the front table, lower the table
and turn the cutter head forward until the stone lies

flat on the bevel of the knife. as shown. Hold the
cutter head from turning. and whet the bevelled edge
of the knife. stroking lengthwise by sliding the stone

back and forth across the table. Do the same amount
of whetting on each of the three blades.

Jointing Knives

Knives may also be sharpened and brought to a
true cutting circle by "jo~nting" their edges while the
cutter head is revolving. To do this, place the car-

borundum stone on the rear table as shown below

OILSTONE PARTLY

;> COVERED WITH PAPER

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REAR TABLE

This guard will give tbe operator maximum pro-
tection at all times and will prevent the hands .from
accidentally striking the revolving knives of the
cutter head while it is in operation. For this reason
we suggest the operator purchase an additional
safety blade guard and tensioning mechanism for the
rfar table. This will give additional protection to
the operator since the revolving knives of the cutter
head behind the guide fence will be entirely covered.
Always use the front knife blade guard whenever
possible.

An additional feature of this mechanism enables
the operator to mount the knife guard after obtain-

ing the correct tension and lock it in place to prevent

unauthorized removal by engaging a padlock through
a hole in the pivot pin that projects through the ten-
sioning mechanism.

Be sure that the rear table is at the highest point of the
cutting circle. Start the machine and move the stone
forward until it projects over the knives; then move it
across the table so that the knives are jointed their
entire length. Keep the stone flat on the table. If the
stone does not touch the knives at all points, lower the
rear table one or two thousandths of an inch and repeat.
When this operation is carefully done, the knives will
cut very smoothly.

JOINTING KNIVES

Safety Knife Guard and Tensioning Mechanism

The front knife guard with pivot pin and tensioning
mechanism is attached to the front table casting. The
safety knife guard has a pivot pin cast in it which
makes it an integral part of the guard. The pivot pin
is placed in a hole in the front table casting. The
tensioning mechanism is attached beneath the front

work tabie directly below the knife blade guard. See
Fig. 3.

To obtain the desired amount of tension on the

knife blade guard, turn the fluted hand knob of the
tensioning mechanism to the right the amount neces-

sary, working from the left side of the machine:
place the pivot pin through the small hole in the

table casting, pushine- it downward until its slotted
end engages the torsional spring of the tensioning

mechanism.

Safety Rules

1. Always keep your hands on top of the work.

2. Always hold the work firmly on the table or
against the fence.

3. Always turn the concave side of stock toward
the table and cut with the grain, not against it.

4. Never run a piece of stock shorter than 12 inches
across the jointer.

5. Do not operate the jointer unless the guard is
in place and working.

6. Do not use the iointer when the knives are dull.

7. Never attempt to run a piece of wood across the

jointer until the machine is running at full speed.

8. Set the fence at right angles to the table. Test
with a square.

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