Delta DJ-15 User manual

INSTRUCTION
MANUAL

TABLE OF CONTENTS
SAFETY RULES FOR ALL TOOLS.
ADDITIONAL SAFETY RULES FOR JOINTER.
UNPACKING AND ASSEMBLY INSTRUCTIONS.
Unpacking And Cleaning The Jointer.
Stand And Electricals.
Assembling Jointer To Stand Or Bench.
Assembling Fence.
Assembling Rabbeting Ledge.
Assembling Cutterhead Guard.„.
Assembling Motor Pulley.
Assembling Belt. Aligning Pulleys.
Adjusting Belt Tension...
Assembling Cutterhead Pulley And Belt Guard.
ELECTRICAL CONNECTIONS.
Single Phase Installation.
Three Phase Installation.....
Changing Voltage.
Cutterhead Rotation.
OPERATING CONTROLS AND ADJUSTMENTS.
Start/Stop Switch.
Fence Operation.
ADJUSTING FENCE POSITIVE STOPS.
90 Degree Positive Stop.
45 Degree Inward Positive Stop.
45 Degree Outward Positive Stop.
inteed table Adjustments...
Outfeed Table Adjustments.
MAINTENANCE.....
Removing. Replacing And Resetting Knives.
Adjusting Knives...
OPERATION..
Placement Of Hands During Feeding.
Jointing Short Or Thin Wood.
Rabbeting....
Jointing An Edge.
Jointing Warped Wood.
Planing/Surlacing...
Direction Of Grain.
Beveling...
Taper Cuts.
PARTS. SERVICE OR WARRANTY ASSISTANCE.
WARRANTY ..
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2

SAFETY RULES
Woodworking can l>e dangerous it sate and proper operating procedures are not followed. As with all machinery, there are certain
hazards involved with the operation ot the product. Using the machine with respect and caution will considerably lessen the
possibiiiy ot personal injury I lowever. If normal safety precautions are overlooked or ignored, personal miury to the operator may
result. Safely equipment such as guards, push sticks hold-downs, fealherboards. goggles, dust masks and hearing protection
can reduce your potential lot injury Rut oven the best guard won't make up tor poor judgment, carelessness or inattention Always
use common sense and exorcise caution in the workshop. If a procedure feels dangerous, don't try it Figure out an alternative
procedure that feels safer MLMLMBER: Your personal safety is your responsibility.
This machine was designed for certain applications only. Della Machinery strongly recommends lhal this machine not be modified
cind/ui used loi any application other than that (or which it was designed. It you have any questions relative to a particular
application, DO NOT use the machine until you have first contacted Delta to determine if it can or should be performed on the
product.
DELTA INTERNATIONAL MACHINERY CORP.
MANAGER OF TECHNICAL SERVICES
246 ALPHA DRIVE
PITTSBURGH. PENNSYLVANIA 15238
ON CANADA: 644 IMPERIAL ROAD GUELPH, ONTARIO N1H 6M7»
WARNING: FAILURE TO FOLLOW THESE RULES
MAY RESULT IN SERIOUS PERSONAL INJURY
1. FOR YOUR OWN SAFETY. READ INSTRUCTION
MANUAL BEFORE OPERATING THE TOOL Learn the
tool's application and limitations as well as the specific hazards
peculiar toil.
2 . KEEP GUARDS IN PLACE and in working order.
3 Al WAYS WEAR FYE PROTECTION
4. GROUND ALL TOOLS. II tool is equipped with three-
prong plug, it should be plugged into a three-hole electrical
receptacle If an adapter is used to accommodate a two-prong
receptacle the adapter lug must be attached to a known
ground. Never renxjvc the third prong.
5. REMOVE ADJUSTING KFYS ANn WRFNCHES Form
habit of checking to see lhal keys and adjusting wrenches are
removed Irom tool before turning it ‘ on. 1 '
6 . KEEP WORK AREA CLEAN. Clullored areas and
benches invite accidents.
7 DON'T USE IN DANGEROUS ENVIRONMENT Don!
use power tools in damp nr wet locations, nr expose them to
rain. Keep work area well-lighted,
ft. KEEP CHILDREN AND VISITORS AWAY All children
and visitors should be kept a safe distance from work area.
9 MAKE WORKSHOP CHILDPROOF - wilh padlocks,
master switches. or by removing starter keys
1 0 DON'T FORCE TOOL. 11 will do the job better and be safer
at the rate for which it was designed.
11 . USE RIGHT TOOL Don't force tool or attachment to do
a job for which it was not designed.
12 WEAR PROPER APPAREL No loose clothing, gloves,
neckties, rings, bracelets, or other jewelry to gel caught in
moving parts. Nonclip footwear io recommended. Wear
protective hair covenng to contain long hair.
13 ALWAYS USE SAFETY GLASSES Wear salely glasses
(must comply with ANSI ZQ7 1 ). Lveryday eyeglasses only
have impact resistant lenses: they are not salely glasses Also
use face or dust mask il culling operation is dusty.
14 SECURE WORK Uccclampc ora vice to hold work when
practical. It's safer than using your hand and Irees both hands
to operate tod.
15. DON’T OVERREACH Keep proper footing and balance
at all lirnos.
16 MAINTAIN TOOLS IN TOP CONDITION Keep tools
sharp and clean for best and safest performance Follow
instructions for lubricating and changing accessories.
l/. DISCONNECT TOOLS betore servicing and when
changing accessories such as blades, bits, cutters etc
18. USE RECOMMENDED ACCESSORIES The use of
accessories and attachments not recommended by Delta
may cause hazards or risk of injury lo persons
19 REDUCE THE RISK OF UNINTENTIONAL START¬
ING. Make sure switch is in OFF" position before plugging in
power cord.
20 NEVER STAND ON TOOL Serious injury could occur if
the tool is tipped or il the culling tool is accidentally contacted.
21. CHECK DAMAGED PARTS Before further use of the
tool, a guard or other port that 13 damaged should be carefully
checked lo ensure lhal il will operate properly and perform its
intended function check for alignment ol moving parts,
binding ol moving parts, breakage of parts, mounting, and any
other conditions that may affecl ils operation A guard or other
part that is damaged should be properly repaired or replaced.
22 . DIRECTION OF FEED Feed work into a blade or culltor
against the direction of rotation of the blade or cutter only.
23 NEVER LEAVETOOLRUNNINGUNATTENDED TURN
POWER OFF. Don't leave fool until it comes to a complete
stop.
24. DRUGS, ALCOHOL. MEDICATION Do not operate tool
while under Hu; influence of drugs, alcohol or any medication.
25. MAKE SURE TOOL IS DISCONNECTED FROM POWER
SUPPLY while motor is being mounted, connected or
reconnected.
26. WARNING: The dust generated by certain woods and
wood products can bo injurious to your health. Always operate
machinery in well ventilated areas and provide for proper dust
removal. Use wood dust collection systems whenever possible.
3

ADDITIONAL SAFETY RULES FOR JOINTERS
I AVOID KICKBACKS A kickback occurs when the
workpiece is thrown back by the cuttorhoad toward the
infeed table. Never pass hands directly over the cutterhead.
When a kickback occurs an injury can result. Some ol the
causes of kickback include:
A Dull and improperly adjusted knives.
B. Knots, nails or imperfections in the workpiece.
C. Taking too deep a cut in one pass.
D. Failure to use adequate hold-downs/push blocks
when jointing or surfacing short, thin or narrow
work.
2. IF YOU ARE NOT thoroughly familiar with the opera¬
tion of jointers, obtain advice from your supervisor, instruc¬
tor or other qualified person.
3. MAKE SURE wiring codes and recommended elec-
tncal correction instructions arc followed, and that the
machine is properly grounded.
4. MAKE all adjustments with the power off.
5 MAINTAIN theproper relationship of infeed and outfeed
table surfaces and cutterhead knife path.
6. MAKE SURE the cutterhead is not contacting the
workpiece before turning on the power.
7. KEEP knives sharp and cutterhead and knives free of
all rust and pitch
8. ALWAYS keep hands and fingers away from the blade
when the machine is running.
9. ALWAYS keep cutterhead guard in place when per¬
forming a jointing or planing operation. Check guard opera
tion periodically to make certain that it operates freely.
10 DEFINITIONS OF JOINTING AND PLANING
OPERATIONS:
A Jointing Operations - Jointing cuts or edge jointing
are made to square an edge of a workpieco. The
workpiece is positioned on the jointer with the narrow
edge of the workpiece on tl ic infeed table and the major
flat surface of the workpiece against the fence. The
workpiece is moved from the infeed table across the
cutterhead to the outfeed table.
B. Planing Operations - Planing or surfacing is similar to
the jointing operation except for the position of the
workpiece. For planing, the major flat surface of the
workpieco is placed on the table of the jointer with the
narrow edge of the workpiece against the fence
11 ALWAYS use hold-downs/push blocks for jointing
material less than 3 inches in height or planing material
less than 3 inches thick.
12 . DO NOT perform jointing or planing operations on
material shorter than 10 inches.
13. NEVER perform a planing operation on material wider
than 6 inches.
14. NEVER make a jointing or planing cut deeper than
1 / 8 -
15 SUPPORT the workpiece adequately at all times dur¬
ing operation: maintain control ol the workpiece at all times.
16. DO NOT back the work toward the infeed table. Always
feed workpiece against cutterhead direction of rotation.
17. DO NOT attempt to perform an unfamiliar operation
without study and the use of adequate hold-downs/push
blocks, jigs, fixtures, stops, etc.
18. STOP the machine before removing chips
19. DISCONNECT machine from the power source before 'V*
making repairs.
21.1 Ht USE of attachments and accessories not recom¬
mended by Della may result in the risk of injuries.
22 ADDITIONAL Information regarding the safe and proper
operation of this product is available from the National
Safety Council. 1121 Spring Lake Drive. Itasca. IL 60143-
3201 in the Accident Prevention Manual for Industrial
Operations and also in the Safety Data Sheets provided by
the NSC. Please also refer to the American National
Standards Institute ANSI 01.1 Safety Requirements for
Woodworking Machinery and the U.S. Department of
Labor OSHA 1910.213 Regulations.
23. SAVE THESE INSTRUCTIONS Refer to them often
and use them to instruct others.
20. REPLACE all guards after servicing.
UNPACKING AND ASSEMBLY INSTRUCTIONS
UNPACKING AND CLEANING THE JOINTER
Carefully unpack the jointer and all loose items from the carton Remove the protective coating from
the machined surfaces of the jointer. This coaling may be removed with a solt cloth moistened with
kerosene (do not use acetone, gasoline, or lacquer thinner for this purpose). After cleaning, cover all
unpainted surfaces witli a good quality paste wax
4

STAND AND ELECTRICALS
If you purchased your jointer complete with stand and
electricals, factory mounted and wired, the stand is shipped
with the motor and switch completely wired and assembled
to the stand, as shown in Fig. 2.
ASSEMBLING JOINTER
TO STAND OR BENCH
If the jointer is to be used with the stand shown in Fig. 2. the
outfeed end of the jointer is to be at the same end of the
stand as the chip chute (A) Fig. 2. Line up the four holes (B)
Fig. 3, on the top of the stand with the four threaded holes
on the bottom of the jointer base and fasten the jointor to the
stand using the four 1 " long socket head cap screws and
lockwashers supplied.
If the jointer is to be used without the stand shown in Fig. 2.
we recommend that the jointer be fastened to a supporting
surface using the four threaded holes in Ihe jointer base.
Fig 4 illustrates the size and center to center distance
of the holes fo be drilled in the supporting surface.
IMPORTANT: Carp must hp taken that an opening is pro¬
vided in the supporting surface to facilitate the removal of
wood chips. The location and si/e of this opening is shown
in Fig. 4 NOTE: If the motor is going to be located below the
jointer an opening must also be provided for Ihe belt.
Fig. 2
5

ASSEMBLING FENCE
1. A ssemble the fence carriage (A) Fig b, and fence
sliding bracket (B) to the side ol the jointer base using the
two 1 3/16" long socket head cap screws and washeis (C).
NOTE: The top surface (D) Fig 6. of the fence carriage (A)
must be level with the top surface of the outfeed table (F),
to enable Ihe fence to sltdc easily.
2. Remove the two screws (F) Fig. 6.
3. Assemble the fence (G) Fig. 7, with the pivoting
brackets (H) to the sliding bracket <B> using the two t -3- I6"
lung socket tiead cap screws |Fj which were removed in
STEP 2

ASSEMBLING
RABBETING LEDGE
AssnmhI p the rahhpfing Ipdge (A) Fig R In the side of the
infeed table using the two 3/4" long socket head cap screws
(B) NOTE: The rabbeting ledge must be level with the top
surface ol the infeed table (cj.
ASSEMBLING
CUTTERHEAD GUARD
CAUTION: WEAR HAND PROTECTION AND AVOID
HAND CONTACT WITH THE CUTTERHEAD BLADE
WHEN INSTALLING CUTTERHEAD GUARD.
To assemble the cutterhead guard, insert post (D) Fig. 8.
^ into hole (E) and tighten locking lever (F) against flat on
post.
Fig. 9. illustrates the cutterhead guard assembled on the
lointer. IMPORTANT: Make certain that the guard operates
Ireely and does not bind or hang-up. Always check guard
operation before applying power to the jointer.
ASSEMBLING
MOTOR PULLEY
T o assemble the motor pulley, remove the back panel of the
jointer stand. Assemble motor pulley (C) Fig. 10. to tf>e
motor shaft with the hub of the pulley in the out position as
shown. Tighten set screw (D) against the key in the motor
shaft
Fig. 8
Fig. 10
7

ASSEMBLING BELT,
ALIGNING PULLEYS
To assemble the drive belt proceed as follows:
1. Place the belt (A) Fig 11. around Ihe cutterhead pulley
(B) . down thru the hole in the jointer stand and around Ihe
motor pulley (C) as shown.
2. Using a straight edge, make certain the motor pulley
(C) Fig. 11. is aligned with the cutterhead pulley <B).
3. If an adjustment is necessary, the motor pulley (C)
Fig. 11. can be moved in or out on the motor shaft (D>, or
the motor (E) can be moved along the mounting bars (F).
ADJUSTING BELT TENSION
Correct belt tension is obtained when there is approxi¬
mately 1” deflection in the center span of the belt (A) Fig. 11.
using light fingei pursuit*. II an adjustment is necessary,
it can bo made by the following methods:
1. Raising or lowering the motor on the motor mounting
bars (F) Fig. 11.
2. If a major adjustment is needed, the motor mounting
bars (F) Fig. 11 can be repositioned on the two posts (G).
ASSEMBLING CUTTERHEAD
PULLEY AND BELT GUARD
To assemble the cutterhead belt and pulley guard (A)
Fig 12. position the guard on the jointer stand and hold in
place using the two 5/8" long screws (B). washers and hex
nuts supplied.
Fig. 12
8

ELECTRICAL CONNECTIONS
The electrical rating of the DJ 15 6' Jointer is either 115/230 Volt, Single Phase or 200-230/460 Volt Three Phase
Before connecting your machine to an electrical power system, bo sure the motor rating agrees with the electncal system
it is to be connected to. We also recommend that tt 14 wire, fused with a 20 amp. dual element time lag fuse, be used to supply
power to all machines regardless of their electrical rating.
SINGLE PHASE INSTALLATION
If the motor on your machine is wired for 115 Volt, Single
Phase, the power cord is equipped with a plug that has two
Hat. parallel current-carrying prongs and one longer round
or ‘U -shaped, ground prong which requires a mating
3-conductor grounded type receptacle, as shown in Fig. 13.
II the motor on your machine is wired lor 230 Volt. Single
Phase, the power cord is equipped with a plug that has two
Hat. current-carrying prongs in tandem, and one round or
“U"-shaped longer ground prong. I his is used only with the
proper mating 3-conductor grounding type receptacle, as
shown in Fig. 14.
When either the 115 Volt or 230 Volt three prong plug on
your machine is plugged into a grounded 3-conductor
receptacle, the long ground prong on the plug contacts first
so the machine is properly grounded before electricity
reaches if.
WARNING. IN ALL CASES. MAKE CERTAIN THE RE¬
CEPTACLE IN QUESTION IS PROPERLY GROUNDED.
IF YOU ARE NOT SURE. HAVE A CERTIFIED ELEC¬
TRICIAN CHECK THE RECEPTACLE
THREE PHASE INSTALLATION
If the motor on your machine is wired lor 200. 230 or 460
Volls, Three Phase, reter to the electrical instruction manual
supplied with your machine for instructions on how to
connect electrical power.
CHANGING VOLTAGE
The single phase 3/4 H P (push butlon switch only). 6’
Jointer is supplied wired lor 115 Volls. It you desire to change
the voltage on this unit it ic nocoseary to disconnect the
machine from the power source, reconnect the leads in the
motor junction box. as shown on the motor nameplate, and
change the plug to a 230 Volt plug.
If you desire to change the voltage on either the single or
three phase, 3/4 H.P.. 6" Jointer that is equipped with 24
Volt push buttonstation, magnetic starter, transformer and
3-leg overload protection, refer to the “CHANGING VOLT¬
AGE OF THE LVC MOTOR STARTER" section in the
electrical manual supplied wilh your jointer I he following
steps must be completed:
2 Move the transformer primary pigtail to the proper
terminal corresponding to the new input voltage.
3. Change the loads in the motor junction box for the
proper line voltage, as shown on the motor nameplate.
4. Change the heater elements in the overload block tor
the proper voltage/amperage, as shown on the motor
nameplate. The correct heater elements can be identified
by referring to the chart inside the motor starter box
CUTTERHEAD ROTATION
IMPORTANT: The rotation of the cutterhead musl be in a
clockwise direction when viewed from the left side of the
machine; that is, the knives must be rotating toward the
infeed table from the lop. It the cutterhead rotation is
incorrect, disconnect the machine from the power source
and proceed as follows:
Single Phase Machines - Interchange leads T5 and
T8 in the motor junction box.
Three Phase Machines Interchange any two ol the
three incoming power lines.
1 DISCONNECT THE MACHINE FROM THE POWER
SOURCE
9

OPERATING CONTROLS AND ADJUSTMENTS
START/STOP SWITCH n --
The stait/slop switch is mounted on the Jointer stand panel
for easy accessibility. To start the machine, simply press
the start button (A) Fig 15; to stop the machine, press the
stop button (B).
FENCE OPERATION
I he fence can be moved across the table by loosening lock
lever (A) Fig 16. sliding the fence (B) to the desired position
and retightening locking lever (A). As the fence is moved
across the table, the sliding bracket (C) guards the
cutterhead in back of the fence as shown.
To tilt the fence to the right or left, loosen handle <Q) Fig. 17.
pull out and turn plunger (E), and move the fence tilting
lever (F) to obtain the desired angle ot tilt: relighten locking
handle (D) NOTE: The handle (D) Fig. 17, is spring
loaded, and can be repositioned by pulling out the handle
and repositioning it on the serrated nut located underneath
the handle.
IMPORTANT: When cutting a bevel, we suggest that
whenever possible, the fence be lilted toward the table as
shown in Fig. 18. The fence will then form a V-shape with
the tables and the work is easily pressed into the pocket
while passing arross the knives.
10

ADJUSTING FENCE POSITIVE STOPS
I he fence on the jointer is equipped with positive stops at
90 degrees and 45 degrees right and left.
Fig. 19
90 DEGREE POSITIVE STOP
To check the accuracy of the positive stops, position the
lencc at 90 degrees to the table by making certain the end
of plunger (A) Fig. 19. is engaged in notch in the index collar
(B) as shown, and tighten lockhandle (C). Place a square
(D) Fig 20. on the jointer table and against the fence (E).
Fig. 20
If an adjustment is necessary, proceed as follows:
t. Loosen set screw (F) Fig. 21. in the index collar and
loosen the fence locking handle (C).
2. Tilt the fence (C) Fig. 21, until you are certain the fence
is 90 degrees fo the table surface; tighten lockhandle (C)
and set screw (F)
bet the angle ot tilt scale (G) Fig. 21. to the proper
degree mark by loosening screw (Ft) and adjusting the
pointer.
P
Fig. 21
11

45 DEGREE
INWARD POSITIVE STOP
To check the accuracy ot the positive stops at 45 degree
inward angle of lilt, position the fence (E) Fig. 22, inward as
far as possible. Use a combination square (D), and check
to see if the fence is tilled inward accurately at 45 degrees.
If an adjustment is necessary, proceed as follows:
I. L oosen lockhandle (C) T ig. 22.
2. Loosen locknut (A) Fig 23. and turn adjustment screw
(B) until the fence (E) is set accurately at 45 degrees to the
table surface.
3. Hetighten locknut (A) Fig. 23.
45 DEGREE
OUTWARD POSITIVE STOP
To check the accuracy of the positive stops at tho 45 degree
outward angle ot tilt, position the fonco (E) Fig. 24, outward
as faras possible. Use a combination square (D) arid check
to see it the fence is tilted outward accurately at 45 degrees
ll an adjustment is necessary, proceed as follows:
1 . Loosen lockhandle (C) Fig. 24.
2 . Loosen locknut (K) Fig. 24. and turn adjustment screw
(L) until the fence (E) is set at 45 degrees with the table
surface.
3. Retighten locknut (K) Fig. 24. and lockhandle (C).
E /
Fig. 24
I
12

INFEED TABLE
ADJUSTMENTS
To raise or lower the infeed table, loosen table lockhandle
(A) Fiq 25. and move the table raising and lowering hand
lever (B). up or down until the lablo is at the desired position
and lighten table lockhandle (A). NOTE: The table lock-
handle (A) can be repositioned by pulling out the handle
and repositioning it on the denoted nut located under
the handle.
The depth of cut of the infeed table (position of table in
relationship with the cutting circle) can be read with the
pointer and scale (C) Fig. 25.
Fig. 25
Positive stops are provided on the |ointer to limit the height
and depth of the infeed table. To adjust the stops, simply
loosen two locknuts (D) and (F) Fig. 26. and turn the two
adjustment screws (F) and (G) as necessary Retighten
locknuts (D) and (E) We recommend that the height of the
infood table be adjusted so the table at its highest point will
be l/2mm below the highest point of the knives This is an
important feature of your jointer which enables you lo
rapidly position the infeed table for a finish or a final cut.
OUTFEED TABLE
ADJUSTMENTS
For most jointing operations the outfeed table must be
exactly level with the knives at their highest point of
reovlution. To move the outfeed table, loosen lockhandle
(A) Fig ?7. and move the table raising and lowering hand
lever (B) up or down until the table is level with the knives.
It may be necessary to adjust the positive stops. Loosen
the Iwo locknuts (C) and (D) Fig. 28. and the two adjusting
screws (E) and (F) when moving the table up or down
When the table is exactly level with the knives at the highest
point of revolution, tighten lockhandle (A) Fig 27. and turn
adjusting screw (E) Fig. 28. until it bottoms; then tighten
locknut (C). Screw (F) is also a positive stop for the lower
limit of the outfeed table. We suggest that this stop also be
lightened when Uieouifeed table is set level with the knives
This will prevent the outfeed table from accidentally being
lowered.
f
Fig. 26
Fig. 27
13

MAINTENANCE
REMOVING, REPLACING
AND RESETTING KNIVES
If the knives are removed from the cutter head for replace¬
ment or regrinding. care must be used in removing and
replacing them as follows.
1 DISCONNECT THE MACHINE FROM THE POWER
SOURCE
2. Bo extremely careful that your hands do not come in
contact with the cutterhead. Move the fence to the rear and
remove the cutterhead guard.
3. Using wrench (A) Fig. 29. slightly loosen the three
locking screws (B) in each knive slot to relievo stress in the
cutterhead by turning the screws clockwise.
4. Loosen screws further and remove the knives (C)
Fig. 29. from the cutterhead.
5. When the three knives are removed from the cutterhead,
lower the two knilc raising blocks by turning the two screws
(D) Fig. 30, counterclockwise. Then lower the knife raising
blocks in each of the two remaining cutterhead slots in the
same manner
6. When replacing, inserl the knife (C) Fig. 30, into the slot
in the cutterhead making certain the bottom of the knife
engages the cut out in the knitc raising blocks and push the
knife down as far as possible. CAUTION: Care must be
taken when inserting the knives as the cutting edges are
very sharp
7 . Tighten the knife locking screws (B) Fig. 30. by turning
cacti one counterclockwise just enough to hold the knife in
position Replace the remaining two knives in the same
manner.
Fig. 30
ADJUSTING KNIVES
The knives are adjusted correctly when the cutting edge of
the knife extends out .015" from the diameter of the
cutterhead To adjust the knives, proceed as follows:
1. Carefully rotate the cutterhead (E) Fig. 31, manually
until the round portion of the cutterhead is on top as shown.
2. Place a .015 feeler gage <F) Fig. 31, on the cutterhead
and using a straight edge (G) on the rear table, adjust the
height of the rear table (H). until it is .015 above the cutter-
head diameter.
3. Lock the rear table in position and remove the feeler
gage <F) Fig. 31.
14
Fig. 3t

ADJUSTING KNIVES ( cont>
4. Lower Ihe infeed table <J) Fig. 32, and place a straight
edge |G) on the outfeed table extending over the cutterhead
as shown
5. Rotate the cutterhead by hand. The knife should just
touch the straight edge at its highest point at each end of
the cutterhead.
G. To raise the knife, use wrench as shown in Fig. 3? and
turn screw (L) clockwise until Ihe knife just touches the
straight edge (G). Repeat this procedure on the other side
of the cutterhead
7. Tighten the three knife locking screws <B) Fig. 32.
Adjust Ihe remaining two knives in the same manner
CAUTION: Make certain that all knives are securely
fastened before turning on the machine.
8 . Replace cutterhead guard alter adjustments are made.
Fig. 32
OPERATION
The following directions will give Ihe beginner a starl on
jointer operation Use scrap pieces of lumber to check
settings and to get the leel of I he operations before attempt
ing regular work ALWAYS USE GUARDS AND KEEP
HANDS AWAY FROM CUTTERHEAD. ALSO USE
PUSH BLOCKS SUPPLIED WITH THE MACHINE
WHENEVER POSSIBLE
PLACEMENT OF HANDS
DURING FEEDING
At the start ot the cut, the left hand holds the work firmly
against the front table and fence, while Ihe right hand
pushes the work toward the knives. Alter the cut is under
way. the new surface rests firmly on Ihe rear table as sfiown
in Fig. 33. The left hand should press down on this part, at
the same time maintaining flat contact with the fence The
right hand presses the work forward and before the right
hand reaches the cutterhead, it should bo moved to the
work on the rear table. NEVER PASS HANDS DIRECTLY
OVER THE CUTTERHEAD
JOINTING SHORT
OR THIN WOOD
When jointing short or thin pieces, always use push blocks
to eliminate danger to the hands. Fig. 34, Illustrates using
Ihe 37-108 Delta Push Blocks while cutting a rabbet on the
Jointer. Never joint (edge) material that is less than 10“ long
or 1/4" thick.
Fig. 34
RABBETING
Figure 34, illustrates using ihe 37-108 Della Push Blocks
while cutting a rabbet. Since this operation requires re¬
moval of iho cutlorhoad guard, it is critical that the operator
he extremely careful In feeding the workpiece through the
cutterhead and use push blocks whenever possible Ihe
cutterhead guard should immediately be returned to the
machine upon completion of the rabbeting operation.
15

JOINTING AN EDGE
This is the most common operation for the jointer. Set the fence square with the
table. Depth of cut should be the minimum (not to exceed 1/8") required to obtain
a straight edge. I told the best face of the piece firmly against the fence throughout
the feed. Always use hold-downs/push blocks for jointing material less than 3' in
height.
JOINTING WARPED WOOD
If the wood to be jointed is dished or warped, take light cuts until l he surface is flat.
Avoid forcing such material down against the table; excessive pressure will spring
it while passing the knives, and it will spring back and remain curved after the cut
is completed
PLANING/SURFACING
When planing/surfacing short or thin pieces, always use push blocks to eliminate
danger to hands. Never surface material that is less than 10" long or 5/8" thick.
For surfacing, the workpiece should be at least 3/4" wide and no more than
6 ' wide.
DIRECTION OF GRAIN
Avoid feeding the wood into the jointer against the grain as
shown in hg. 35. I he result will be chipped and splintered
edges.
Feed with the gram as in Fig. 36, to obtain a smooth
surface.
Fig. 35
CUTTER
WRONG FEED - AGAINST THE GRAIN
Fig. 36
CORRECT FEED - WITH THE GRAIN
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BEVELING
To cut a hovel, lock the fence at the required angle and run
the work across the knives while keeping it firmly against
the tence and tables. Several passes may he necessary to
arrive at the desired result.
When the angle is small, there is little difference whether
the fence is tilted to the right or left. However, at greater
angles approaching 45 degrees, it is increasingly difficult
to hold the work properly when the tence is tilted to the right
The advantage of the double-tilling fence is appreciated
under such conditions.
When tilted to the left, the fence forms a V-shape with the
tables, as shown in Fig 37. and ihe work is easily pressed
into the pocket while passing it across the knives. If the
bevel is laid out on the piece in such direction tftal this
involves cutting against Ihe grain, il will be bettor lo till the
fence to Ihe right.
Fig. 37
TAPER CUTS
One of the most useful jointer operations is cutting an edge to a taper. T he method can be
used on a wide variety of work Tapered legs of furniture are a common example
Instead of laying Ihe piece on the front table, lower the forward end of the work onto ihe
rear table. Do this very carefully, as Ihe piece will span Ihe knives, and they will take a
*t>ite" from the work with a tendency to kickback unless the piece is firmly held. Now push
Ihe work forward as in ordinary jointing. The effect is to plane off all the stock in front of the
knives, to increase depth, leaving a tapered surface
The ridge loll by the knives when starting the taper may be removed by taking a very light
cut according to the regular method for jointing, with the front table raised to its usual
position, or bv sanding.
Practice is required in this operation, and the beginner is advised to make trial cuts on
waste material. Taper cuts over part of the length and a number ol other special operations
can easily be done by Ihe experienced craftsman.
Additional information ori the sale and proper operation of wood jointers can be obtained
by writing to:
NATIONAL SAFETY COUNCIL
1121 SPRING LAKE DRIVE
ITASCA. IL 60143-3201
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Aoelta
Delta Building Trades and Home Shop Machinery
Two Year Limited Warranty
Delta will repair nr replace, at its expense and at its nptinn. any Dplta machine,
machine part, or machine accessory which in normal use has proven to be defective
in workmanship or material, provided that the customer returns the product prepaid
to a Delta factory service center or authorized service station with proof of purchase
of the product within two years and provides Delta with reasonable opportunity to
verify the alleged defect by inspection. Delta may require that electric motors be
returned prepaid to a motor manufacturer's authorized station for inspection and
repair or replacement. Deiia will not be responsible for any asserted defect which has
resulted from normal wear, misuse, abuse or repair or alteration made or specifically
authorized by anyone other than an authorized Delta service facility or representative.
Under no circumstances will Delta be liable for incidental or consequential damages
resulting from defective products. This warranty is Delta’s sole warranty and sets
forth the customer’s exclusive remedy, with respect to defective products: all other
warranties, express or implied, whether of merchantability, fitness for purpose, or
otherwise, are expressly disclaimed by Delta.
Prrreo in U S A
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