Powermatic DT65 Service manual

Operating Instructions and Parts Manual
Single End Dovetailer
Model DT65
Powermatic
427 New Sanford Road
LaVergne, Tennessee 37086 Part No. M-1791305
Ph.: 800-274-6848 Revision B 02/2016
www.powermatic.com Copyright © 2014 Powermatic
This .pdf document is bookmarked

2
Warranty and Service
Powermatic warrants every product it sells against manufacturers’ defects. If one of our tools needs service or repair,
please contact Technical Service by calling 1-800-274-6846, 8AM to 5PM CST, Monday through Friday.
Warranty Period
The general warranty lasts for the time period specified in the literature included with your product or on the official
Powermatic branded website.
•Powermatic products carry a limited warranty which varies in duration based upon the product. (See chart
below)
•Accessories carry a limited warranty of one year from the date of receipt.
•Consumable items are defined as expendable parts or accessories expected to become inoperable within a
reasonable amount of use and are covered by a 90 day limited warranty against manufacturer’s defects.
Who is Covered
This warranty covers only the initial purchaser of the product from the date of delivery.
What is Covered
This warranty covers any defects in workmanship or materials subject to the limitations stated below. This warranty
does not cover failures due directly or indirectly to misuse, abuse, negligence or accidents, normal wear-and-tear,
improper repair, alterations or lack of maintenance. Powermatic woodworking machinery is designed to be used with
Wood. Use of these machines in the processing of metal, plastics, or other materials outside recommended
guidelines may void the warranty. The exceptions are acrylics and other natural items that are made specifically for
wood turning.
Warranty Limitations
Woodworking products with a Five Year Warranty that are used for commercial or industrial purposes default to a
Two Year Warranty. Please contact Technical Service at 1-800-274-6846 for further clarification.
How to Get Technical Support
Please contact Technical Service by calling 1-800-274-6846. Please note that you will be asked to provide proof
of initial purchase when calling. If a product requires further inspection, the Technical Service representative will
explain and assist with any additional action needed. Powermatic has Authorized Service Centers located throughout
the United States. For the name of an Authorized Service Center in your area call 1-800-274-6846 or use the Service
Center Locator on the Powermatic website.
More Information
Powermatic is constantly adding new products. For complete, up-to-date product information, check with your local
distributor or visit the Powermatic website.
How State Law Applies
This warranty gives you specific legal rights, subject to applicable state law.
Limitations on This Warranty
POWERMATIC LIMITS ALL IMPLIED WARRANTIES TO THE PERIOD OF THE LIMITED WARRANTY FOR EACH
PRODUCT. EXCEPT AS STATED HEREIN, ANY IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE ARE EXCLUDED. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW
LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU.
POWERMATIC SHALL IN NO EVENT BE LIABLE FOR DEATH, INJURIES TO PERSONS OR PROPERTY, OR
FOR INCIDENTAL, CONTINGENT, SPECIAL, OR CONSEQUENTIAL DAMAGES ARISING FROM THE USE OF
OUR PRODUCTS. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR
CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU.
Powermatic sells through distributors only. The specifications listed in Powermatic printed materials and on the official
Powermatic website are given as general information and are not binding. Powermatic reserves the right to effect at
any time, without prior notice, those alterations to parts, fittings, and accessory equipment which they may deem
necessary for any reason whatsoever.
Product Listing with Warranty Period
90 Days – Parts; Consumable items
1 Year – Motors, Machine Accessories
2 Year – Woodworking Machinery used for industrial or commercial purposes
5 Year – Woodworking Machinery
NOTE: Powermatic is a division of JPW Industries, Inc. References in this document to Powermatic also apply to
JPW Industries, Inc., or any of its successors in interest to the Powermatic brand.

3
Table of Contents
Warranty and Service..............................................................................................................................2
Table of Contents....................................................................................................................................3
Warning...................................................................................................................................................4
Introduction .............................................................................................................................................6
Description..............................................................................................................................................6
Specifications..........................................................................................................................................6
Features of the DT65 Dovetailer..............................................................................................................7
Terminology ............................................................................................................................................7
Unpacking...............................................................................................................................................8
Contents of the Shipping Container......................................................................................................8
Installation & Assembly............................................................................................................................9
Attaching Dust Hose ............................................................................................................................9
Installing Dust Chute..........................................................................................................................10
Dust Collection...................................................................................................................................10
Grounding Instructions.......................................................................................................................10
230 Volt Operation.............................................................................................................................11
Extension cords.................................................................................................................................11
Air Connection...................................................................................................................................11
Adjustments ..........................................................................................................................................12
Clamping Cylinders............................................................................................................................12
Clamping Pressure.............................................................................................................................13
Locking Handles ................................................................................................................................13
Template Bar.....................................................................................................................................13
Indication Template............................................................................................................................14
Fixed Chaser .....................................................................................................................................14
Horizontal and Vertical Fences...........................................................................................................15
Buffer Pads........................................................................................................................................17
Cutter Height......................................................................................................................................17
Mortise Depth ....................................................................................................................................17
Thickness of Tenon Cut .....................................................................................................................18
Tightness of Mortise/Tenon Fit...........................................................................................................18
Drive Belt Tension..............................................................................................................................19
Replacing cutter.................................................................................................................................19
Oil Output ..........................................................................................................................................19
Operation..............................................................................................................................................20
Preventing Chip Out...........................................................................................................................22
Dovetails in Plywood..........................................................................................................................22
Maintenance..........................................................................................................................................23
Lubrication.........................................................................................................................................23
Replacement Parts................................................................................................................................26
Parts List: Base Assembly..................................................................................................................26
Base Assembly..................................................................................................................................27
Parts List: Hold-Down Assembly ........................................................................................................28
Hold-Down Assembly.........................................................................................................................29
Parts List: Headstock Assembly.........................................................................................................30
Headstock Assembly..........................................................................................................................32
Parts List: Cabinet Assembly..............................................................................................................33
Electrical Connections...........................................................................................................................34

4
Warning
1. Read and understand the entire owner’s manual before attempting assembly or operation.
2. Read and understand the warnings posted on the machine and in this manual. Failure to comply with
all of these warnings may cause serious injury.
3. Replace the warning labels if they become obscured or removed.
4. This dovetailer is designed and intended for use by properly trained and experienced personnel only.
If you are not familiar with the proper and safe operation of a dovetailer, do not use until proper
training and knowledge have been obtained.
5. Do not use this dovetailer for other than its intended use. If used for other purposes, Powermatic
disclaims any real or implied warranty and holds itself harmless from any injury that may result from
that use.
6. Always wear approved safety glasses/face shields while using this dovetailer. Everyday eyeglasses
only have impact resistant lenses; they are not safety glasses.
7. Before operating this dovetailer, remove tie, rings, watches and other jewelry, and roll sleeves up past
the elbows. Remove all loose clothing and confine long hair. Non-slip footwear or anti-skid floor strips
are recommended. Do not wear gloves.
8. Wear ear protectors (plugs or muffs) during extended periods of operation.
9. Some dust created by power sanding, sawing, grinding, drilling and other construction activities
contain chemicals known to cause cancer, birth defects or other reproductive harm. Some examples
of these chemicals are:
•Lead from lead based paint.
•Crystalline silica from bricks, cement and other masonry products.
•Arsenic and chromium from chemically treated lumber.
Your risk of exposure varies, depending on how often you do this type of work. To reduce your
exposure to these chemicals, work in a well-ventilated area and work with approved safety
equipment, such as face or dust masks that are specifically designed to filter out microscopic
particles.
10. Do not operate this machine while tired or under the influence of drugs, alcohol or any medication.
11. Make certain the switch is in the OFF position before connecting the machine to the power supply.
12. Make certain the machine is properly grounded.
13. Make all machine adjustments or maintenance with the machine unplugged from the power source.
14. Remove adjusting keys and wrenches. Form a habit of checking to see that keys and adjusting
wrenches are removed from the machine before turning it on.
15. Keep safety guards in place at all times when the machine is in use. If removed for maintenance
purposes, use extreme caution and replace the guards immediately.
16. Check damaged parts. Before further use of the machine, a guard or other part that is damaged
should be carefully checked to determine that it will operate properly and perform its intended
function. Check for alignment of moving parts, binding of moving parts, breakage of parts, mounting
and any other conditions that may affect its operation. A guard or other part that is damaged should
be properly repaired or replaced.
17. Provide for adequate space surrounding work area and non-glare, overhead lighting.
18. Keep the floor around the machine clean and free of scrap material, oil and grease.
19. Keep visitors a safe distance from the work area. Keep children away.
20. Make your workshop child proof with padlocks, master switches or by removing starter keys.

5
21. Give your work undivided attention. Looking around, carrying on a conversation and “horse-play” are
careless acts that can result in serious injury.
22. Maintain a balanced stance at all times so that you do not fall or lean against the cutter or other
moving parts. Do not overreach or use excessive force to perform any machine operation.
23. Use the right tool at the correct speed and feed rate. Do not force a tool or attachment to do a job for
which it was not designed. The right tool will do the job better and safer.
24. Use recommended accessories; improper accessories may be hazardous.
25. Maintain tools with care. Keep cutters sharp and clean for the best and safest performance. Follow
instructions for lubricating and changing accessories.
26. Make sure the work piece is securely clamped to the table. Never use your hand to hold the work
piece.
27. Turn off the machine before cleaning. Use a brush or compressed air to remove chips or debris — do
not use your hands.
28. Do not stand on the machine. Serious injury could occur if the machine tips over.
29. Never leave the machine running unattended. Turn off the electrical power and the air supply, and do
not leave the machine until cutter comes to a complete stop.
30. Remove loose items and unnecessary work pieces from the area before starting the machine.
Familiarize yourself with the following safety notices used in this manual:
This means that if precautions are not heeded, it may result in minor injury and/or
possible machine damage.
This means that if precautions are not heeded, it may result in serious injury or possibly
even death.
- - SAVE THESE INSTRUCTIONS - -

6
Introduction
This manual is provided by Powermatic covering the safe operation and maintenance procedures for a
Model DT65 Single End Dovetailer. This manual contains instructions on installation, safety precautions,
general operating procedures, maintenance instructions and parts breakdown. This machine has been
designed and constructed to provide years of trouble free operation if used in accordance to instructions
set forth in this manual. If there are any questions or comments, please contact either your local supplier
or Powermatic. Powermatic can also be reached at our web site: www.powermatic.com.
Description
The Model DT65 Dovetailer will make cleanly cut half-blind dovetails for drawer or box construction. A
four-sided template allows any of four pitches, from 1” up to 2-1/2”. The use of different dovetail pitches
will give a unique custom appearance to your work. The cutter is carbide-tipped. The machine has a
magnetic starter, and is built to last with cast iron and steel construction. The pneumatic clamping system
is quick and easy to use.
Specifications
Model Number...................................................................................................................................DT65
Stock Number...............................................................................................................................1791305
Minimum work piece size.........................................................................7-7/8 x 2-3/8 in. (200 x 60.3 mm)
Maximum work piece size............................................................................. 59 x 16-1/2 (1499 x 419 mm)
Minimum dovetail height..................................................................................................3/16 in. (4.8 mm)
Maximum dovetail height....................................................................................................3/4 in. (19 mm)
Minimum front thickness................................................................................................9/32 in. (7.14 mm)
Maximum front thickness..............................................................................................2-3/8 in. (60.3 mm)
Minimum side thickness.....................................................................................................3/8 in. (9.5 mm)
Maximum side thickness.............................................................................................1-3/16 in. (30.2 mm)
Maximum depth of cut .......................................................................................................2.36 in. (60mm)
Number of spindles..................................................................................................................................1
Spindle speed (RPM)...................................................................................................................... 18,500
Center-to-center dovetail spacing ..........................................................................1, 1-1/2, 2 and 2-1/2 in.
Table height from floor.....................................................................................................45 in. (1143 mm)
Overall dimensions (L x W x H)....................................................37 x 44 x 63 in. (940 x 1118 x 1600 mm)
Motor...........................................................................................................TEFC, 1HP, 1Ph, 230V, 60Hz
Dust collection ports diameter................................................................................front 2-1/2 in., rear 4 in.
Dust collection minimum CFM required................................................................................................500
ApproximateWeight, Shipping/Net (lbs.)......................................................................................510 / 420
The above specifications were current at the time this manual was published, but because of our policy of
continuous improvement, Powermatic reserves the right to change specifications at any time and without
prior notice, without incurring obligations.

7
Features of the DT65 Dovetailer
Terminology
Below are the terms used in this manual to identify types of cuts and measurements.

8
Unpacking
Open shipping container and check for shipping
damage. Report any damage immediately to
your distributor and shipping agent. Do not
discard any shipping material until the Dovetailer
is assembled and running properly.
Remove the box from inside the cabinet.
Compare the contents of your container with the
following parts list to make sure all parts are
intact. Missing parts, if any, should be reported
to your distributor. Read the instruction manual
thoroughly for assembly, maintenance and
safety instructions.
Contents of the Shipping Container
1 Dovetail Machine
2 Fixed Chasers (2-1/2” and 3” pitches)
1 Indication Template
1 Set of Open-Ended Wrenches (8-10, 11-13,
12-14, and 17-19mm)
1 Combination Wrench, 30mm
1 Set of Hex Wrenches (1.5 to 6mm)
1 Dust Chute
2 Sample Dovetailed Boards
1 Owner's Manual
1 Warranty Card
Read and understand the entire contents of this manual before attempting set-up
or operation! Failure to comply may cause serious injury.

9
Installation & Assembly
Tools required for assembly
forklift or hoist with straps/slings
14mm wrench (provided)
[NOTE: A socket set with ratchet wrench may
speed assembly]
4mm hex wrench (provided)
knife or wire cutter
flat head screwdriver
1. Remove the four screws and flat washers
holding the machine to the pallet with a
14mm wrench, as shown in Figure 1.
2. Place lifting straps through the two eyebolts
at the top of the machine (Figure 2). Using
a forklift or hoist, lift the machine off the
pallet and into its desired location. The
Dovetailer should be located in a dry area
with sufficient lighting. Leave plenty of
space around the machine for operations
and routine maintenance work.
3. If desired, the Dovetailer can be further
stabilized by securing it to the floor, using
lag screws through the four holes at the
bottom of the cabinet.
4. A group of cords holds the headstock
secure to the machine frame to prevent it
from moving during shipping. These cords
should now be cut and removed (see
Figure 3).
5. Exposed metal areas of the Dovetailer
(such as the table, template bar, cylinder
clamps, rods, etc.) have been factory
coated with a protectant. This should be
removed with a soft cloth dampened with
kerosene or mineral spirits. Do not use an
abrasive pad. Do not let solvent contact
plastic or rubber parts as it may damage
them.
Attaching Dust Hose
1. Slide the upper end of the hose over the
chute on the dust hood (Figure 4).
2. Tighten the hose clamp with the attached
screw, using a flat head screwdriver.
Figure 1
Figure 2
Figure 3
Figure 4

10
Installing Dust Chute
Remove the four socket head cap screws at the
rear of the cabinet, using a 4mm hex wrench.
Place the 4” diameter dust chute (Figure 5) over
the hole, and re-insert and tighten the four
socket head cap screws.
Dust Collection
The use of a dust collection system is strongly
recommended for this machine. It will help keep
your shop clean as well as minimize any health
risks caused by wood dust. Make sure your dust
collector has a capacity of at least 500 cubic feet
per minute (CFM).
Connect the intake hose of your dust collector to
the 4” diameter dust chute at the back of the
cabinet (Figure 5).
NOTE: A variety of dust collection systems are
available from Powermatic. Call customer
service at 1-800-274-6848 or visit our website
for more information.
Grounding Instructions
Electrical connections must
be made by a qualified electrician in
compliance with all relevant codes. This
machine must be properly grounded to help
prevent electrical shock and possible fatal
injury.
This machine must be grounded. In the event of
a malfunction or breakdown, grounding provides
a path of least resistance for electric current to
reduce the risk of electric shock.
Improper connection of the equipment-
grounding conductor can result in a risk of
electric shock. The conductor, with insulation
having an outer surface that is green with or
without yellow stripes, is the equipment-
grounding conductor. If repair or replacement of
the electric cord or plug is necessary, do not
connect the equipment-grounding conductor to a
live terminal.
Check with a qualified electrician or service
personnel if the grounding instructions are not
completely understood, or if in doubt as to
whether the tool is properly grounded. Use only
three wire extension cords that have three-prong
grounding plugs and three-pole receptacles that
accept the tool’s plug.
Repair or replace a damaged or worn cord
immediately.
Make sure the voltage of your power supply
matches the specifications on the motor plate of
the Dovetailer.
Figure 5

11
230 Volt Operation
As received from the factory, the DT65
Dovetailer is designed to run on 230 volt power
only. You may either connect a UL/CSA listed
230V plug (similiar to the one shown in Figure 6)
or “hard-wire” the machine directly to a control
panel. If hard-wired to a panel, make sure a
disconnect is available for the operator. The
dovetailer must comply with all local and
national codes after being wired.
1. If it is to be hard-wired, make sure the fuses
have been removed or the breakers have
been tripped in the circuit to which the
dovetailer will be connected. Place a
warning placard on the fuse holder or circuit
breaker to prevent it being turned on while
the machine is being wired.
2. Refer to “Electrical Connections” on page 36
for connecting the motor leads.
3. The Dovetailer with a 230 volt plug should
only be connected to an outlet having the
same configuration. No adapter is available
or should be used with the 230 volt plug.
Extension cords
If an extension cord is necessary, make sure the
cord rating is suitable for the amperage listed on
the machine’s motor plate. An undersized cord
will cause a drop in line voltage resulting in loss
of power and overheating.
Use the chart in Figure 7 as a general guide in
choosing the correct size cord. If in doubt, use
the next heavier gauge. The smaller the gauge
number, the heavier the cord.
Air Connection
Connect the air supply hose to the coupling on
the air unit (Figure 8). The air is turned ON by
rotating the valve lever 90 degrees
counterclockwise (until it is parallel with the
hose), and turned OFF by rotating the valve
lever 90 degrees clockwise.
Even after the air has been
turned off to the machine, there may be
residual air inside the lines, and the
clamping cylinders can still provide a hazard
to fingers. After shutting off the air, always
bleed residual air from the system by
pushing the relief valve pin at the bottom of
the air cup, shown in Figure 8. Keep the
relief valve open until all air in the system
has been removed.
Figure 6
Recommended Gauges (AWG) of Extension Cords
Amps
Extension Cord Length *
25
feet 50 feet 75 feet 100 feet 150 feet 200 feet
< 5 16 16 16 14 12 12
5 to 8 16 16 14 12 10 NR
8 to 12 14 14 12 10 NR NR
12 to 15 12 12 10 10 NR NR
15 to 20 10 10 10 NR NR NR
21 to 30 10 NR NR NR NR NR
*based on limiting the line voltage drop to 5V at 150% of the
rated amperes.
NR: Not Recommended.
Figure 7
Figure 8

12
Adjustments
Disconnect machine from
power source, shut off air supply and bleed
residual air from system, before making
adjustments. Failure to comply may cause
serious injury.
Clamping Cylinders
The workpieces are clamped to the table by
pneumatically operated aluminum cylinders (A,
Figure 9). Each cylinder has its own air on/off
lever. Simply turn the lever (B, Figure 9) to “on”
position to activate the cylinder; the cylinder will
respond immediately by clamping the workpiece
against the table.
Always keep fingers out of
the way of clamping cylinders. Failure to
comply may cause serious injury.
Both vertical and horizontal clamping cylinders
can be adjusted to match the thickness of your
workpieces. To change the thickness capacity of
the clamping cylinders, proceed as follows:
1. To increase the clamping capacity, loosen
the top two hex nuts (A and B, Figure 10) on
the stud at the end of the holder bracket,
with a 30mm wrench. Do the same for the
stud at the opposite end of the holder
bracket.
2. Tighten the lower hex nut (C, Figure 10).
You can do this without a wrench. This will
raise the holder bracket. Do this
incrementally on both studs until the desired
height is reached. When finished, tighten
top hex nuts (A & B, Figure 10) on both
studs with the wrench.
NOTE: Make equal adjustment on both studs at
each end of the holder bracket to ensure the
clamps are parallel to the table. To check this,
measure from the bottom edge of the holder
bracket down to the table. Measure at each end
of the holder bracket – the measurements
should be equal. Figure 10 shows the horizontal
clamping assembly - the procedure is identical
for the vertical clamping assembly.
3. To decrease the clamping capacity, back off
the lower hex nut (C, Figure 10) and tighten
the top hex nut (B, Figure 10). This will
lower the holder bracket.
4. When finished, tighten the lower hex nut (C)
against the holder bracket, and bring hex
nut (A) down against hex nut (B).
Figure 9
Figure 10
Figure 11

13
The clamping cylinders can also be adjusted
laterally for better support of workpieces with
differing widths. Simply loosen the locking
handle (Figure 11) and slide the clamping
cylinder to position. Re-tighten locking handle.
Clamping Pressure
The pressure exerted by the cylinder clamps
against the workpiece can be adjusted at the air
regulator, shown in Figure 12. The hardness or
softness of the wood will determine the amount
of clamping pressure desired. Enough pressure
should be used to prevent the workpiece from
slipping during operations. Forty (40) psi is
suitable for clamping most wood; going above
that is not recommended.
To change the clamping pressure, pull up on the
knob (A, Figure 12) and rotate it; clockwise to
increase pressure, counterclockwise to
decrease pressure. The attached needle
indicator (B, Figure 12) shows the air pressure.
Lock the setting by pushing the knob (A, Figure
12) back down.
Locking Handles
All locking handles, such as those shown in
Figure 11, can be rotated out of the way if they
interfere with other machine parts. Simply lift
straight out on the locking handle and rotate it,
then release, making sure it seats properly.
Template Bar
The four-sided template bar, shown in Figure
14, will allow you to create “half-blind” dovetails,
where the dovetails are visible on only one side
of the joint. It will create dovetails in one of four
different “pitches” or centerlines. The available
pitches are 1”, 1-1/2”, 2” and 2-1/2”. To change
the pitch of a dovetail cut, proceed as follows:
1. First notice how the notches on the
template bar are grouped toward the right
side of the machine. The template bar
should always be oriented in this fashion.
2. Release one end of the spring on the left
side of the headstock (Figure 13) and pull
the headstock forward until the tracer pin
(Figure 14) is clear of the template bar.
3. Loosen and remove the locking handles on
each end of the template bar (Figure 15).
4. Pull out the template bar, flip it to the
desired side, then reinstall it. NOTE: The
pitch dimension is inscribed on each side of
the template bar. The side of the template
bar that you have chosen should face
downward when mounted on the machine.
5. Insert and tighten both locking handles.
Figure 12
Figure 13
Figure 14

14
6. Push the headstock back and re-connect
the spring (Figure 13).
You must now also shift the indication template
(Figure 16). See “Indication Template”.
Indication Template
Because the tracer pin is not easily observed
while the machine is in operation, the indication
template (A, Figure 16) provides the operator
with a visual record of the progress of the
“hidden” tracer pin. The bracket (B, Figure 16)
slides in and out of the notches on the indication
template, echoing the tracer pin as it slides in
and out of the notches on the template bar
below.
The pitch of the indication template must match
the pitch of the template bar. Therefore, when
turning the template bar for a new pitch, you
must also change the indication template.
1. First notice how the notches on the
indication template are grouped toward the
right side of the machine. The indication
template should always be oriented in this
fashion.
2. Remove the socket head cap screw (C,
Figure 16) at each end of the indication
template, with a 5mm hex wrench.
3. The indication template that came installed
on your machine contains the 1” and 2”
pitch. The other indication template has the
1-1/2” and 2-1/2” pitch. Either flip the
indication template, or replace it with the
other one as needed, to match the pitch of
the template bar.
4. Re-insert and tighten the socket head cap
screws (C, Figure 16).
Fixed Chaser
The fixed chaser (Figure 17) provides a support
on which the workpieces rest. The spacing
between the “fingers” of the fixed chaser allows
clearance for the cutter.
The DT65 Dovetailer comes standard with three
fixed chasers at 2”, 2-1/2” and 3” pitches. (Pitch
is the distance between the centers of the
“fingers”; see Figure 18).
NOTE: If you wish to use the 1-1/2” or 2-1/2”
pitch on the template bar, you must replace the
fixed chaser on the machine with one of the
others provided. Figure 18 explains how the
available fixed chasers correspond to the pitch
of the template bar.
Figure 15
Figure 16
Figure 17

15
1. To replace the fixed chaser, remove the
three M6 socket head cap screws and flat
washers, using a 5mm hex wrench as
shown in Figure 17. Remove the fixed
chaser.
2. Install the new fixed chaser and make sure
it is level with themain table.
3. Re-insert and tighten the socket head cap
screws against the flat washers.
After mounting the fixed chaser, make sure it will
correspond to your chosen pitch on the template
bar. With the machine power off, slide the
headstock across the length of the fixed chaser,
allowing the cutter to move in and out of the
spaces. If there is any interference between the
cutter and one of the “fingers” on the fixed
chaser, then try a different fixed chaser, or
change the pitch of the template bar.
Horizontal and Vertical Fences
The workpieces will lie flush against the fences
during cutting to ensure squareness. Two buffer
pads made of polyethylene material are
mounted to the fences – these provide a
“chipbreaker” effect to prevent chip-out on the
left edges of the workpieces. They are designed
so the cutter can bite into them without any
damage to the cutter.
To adjust these fences, proceed as follows:
1. Place your FRONT/BACK workpiece on the
horizontal table and against the fence/buffer
pad. Move the headstock to the left edge of
the workpiece, then slide it to the right,
allowing the tracer pin to slide just a little
into the template recesses, while observing
through the dust hood window the progress
of the cutter. This will give you an idea
where the cuts will be made and how they
will be spaced across the width of the
workpiece.
2. For broad movement of the horizontal fence,
loosen both locking handles on the
horizontal fence (A and B, Figure 19) and
slide the horizontal fence into position.
Tighten both locking handles (A & B, Figure
19).
3. There is also a micro adjustment on the
horizontal fence; loosen locking handle (A,
Figure 19), but leave locking handle (B)
tight. Loosen the screw (C, Figure 19) with a
6mm hex wrench and rotate the knurled
knob (D, Figure 19) as needed for precise
positioning of the horizontal fence.
4. When finished, tighten screw (C, Figure 19)
and locking handle (A, Figure 19).
Figure 18
Figure 19

16
NOTE: Make sure locking handles (A & B,
Figure 19) will not interfere with the headstock
during operation.
5. Continue to check the spacing by sliding the
headstock across, until the dovetail cuts will
be distributed evenly across the width of the
workpiece. NOTE: This is an approximate
method of determining by eye where to
place the workpiece. A scale in inches and
millimeters is mounted to both horizontal
and vertical tables, if you need more precise
measurements for the location of the
dovetail cuts.
6. Again, make sure the locking handles on the
horizontal fence (A & B, Figure 19) are
tightened. The position of the horizontal
fence will now be used as the basis for
locating the vertical fence.
7. Loosen the locking handle on the vertical
fence.
8. As noted, the position of the horizontal
fence will affect the position of the vertical
fence. Therefore, if you are making a drawer
that has a bottom groove, the vertical fence
should be set so that the bottom groove in
the drawer piece to be tenoned will go
through the center of a tail. That means the
bottom groove of the mortised piece will go
through the center of a mortise. This will
prevent the groove from being visible on the
outside of the assembled drawer. See
Figures 20 and 21.
Important: To make proper dovetail cuts, the
two fences must always be offset from each
other by half the pitch of the template bar. That
is, offset 1/2” when using the one-inch template;
3/4” when using the 1-1/2 template; 1” when
using the two-inch template, and 1-1/4” when
using the 2-1/2 inch template. The measuring
scales on the horizontal and vertical tables are
marked in 1/16” increments and millimeters.
9. Line up the vertical fence with the horizontal
fence, then offset the vertical fence by
exactly half the pitch of the template bar.
See Figure 22.
10. This adjustment will cause the vertical work
piece to be slightly offset to the right of the
horizontal piece (as viewed from front of
machine), thus ensuring the dovetails will
correspond when the two pieces are
assembled.
11. Tighten the locking handle on the vertical
fence.
Figure 20
Figure 21
Figure 22
(view from rear of machine)

17
There are a total of four fences on the DT65
Dovetailer – two vertical and two horizontal.
These allow two sets of workpieces to be cut at
the same time. If this is desired, position the
other two fences in the same manner as the first
two fences, remembering again to offset the
vertical fence by half the pitch.
Buffer Pads
The polyethylene buffer pads, shown in Figure
22, have slots through which they are secured to
the fences by screws. These buffer pads can be
re-positioned if needed.
To adjust a buffer pad, loosen the two hex cap
screws (shown in Figure 22) with a 13mm
wrench. Slide the buffer pad as necessary. Re-
tighten both hex cap screws when finished.
Cutter Height
This adjustment will change the height of the tail
on the tenon (male) cut, and how deep the
mortise (female) cut goes into the thickness of
the workpiece.
1. Disconnect machine from power source.
2. Loosen the spindle lock screw (Figure 23)
by turning it counterclockwise with a 6mm
hex wrench.
3. Turn the spindle height adjustment screw
(Figure 23) with a 5.5mm hex wrench, either
clockwise to raise the cutter (increase the
cutter depth), or counterclockwise to lower
the cutter (decrease the cutter depth).
4. Tighten spindle lock screw by turning it
clockwise.
Mortise Depth
This adjustment ensures that the side pieces of
your drawer will remain flush with the front and
back pieces of the drawer. The correct fit will
have the sides flush with the front and back of
the drawer, without showing any of the mortise
cut on the inside of the drawer.
The mortise depth adjustment bolt, shown in
Figure 23, limits how far forward the headstock
will go, and thus limits the length of your mortise
cut.
1. Disconnect machine from power source.
2. Loosen the hex nut on the mortise depth
adjustment bolt (Figure 23) by turning the
hex nut counterclockwise with a 17mm
wrench.
Figure 23

18
3. To decrease the depth of the mortise
(female) cut, turn the bolt clockwise. To
increase the depth of the mortise cut, turn
the bolt counterclockwise.
4. Re-tighten the hex nut.
Thickness of Tenon Cut
To adjust the thickness of the tenon (male) cuts,
you will change the depth of the tracer pin (A,
Figure 24).
1. Disconnect machine from power source.
2. Loosen the locking handle (B, Figure 24).
3. Insert a 5.5mm hex wrench into the end of
the adjustment screw (C, Figure 24) and
turn the adjustment screw as needed. To
decrease the thickness of the tenon cut, turn
the adjustment screw counterclockwise. To
increase the thickness of the tenon cut, turn
the adjustment screw clockwise.
4. Tighten locking handle (B, Figure 24).
Tightness of Mortise/Tenon Fit
A proper dovetail fit should be snug with no
gaps showing, but not overly tight as glue must
later fill the joints. If the cuts seem correct, but
the joint is simply too tight, or the joint is too
loose, proceed as follows.
1. Disconnect machine from power source.
2. Remove the dust hood from the front of the
headstock. Release one end of the spring
on the headstock (see Figure 13) and pull
the headstock away from the machine until
the cutter becomes more accessible.
3. You will notice the cutter, shown in Figure
25, is slightly off center of the spindle. The
spindle is eccentric and allows the cutter to
be turned to a different position on the
spindle.
The cutter is very sharp! Use
caution when working with or around it.
4. Loosen both set screws on the spindle
(Figure 25) by turning them counter-
clockwise with a 4mm hex wrench.
5. A scale is located just above the cutter, with
a plus (+) and minus (-) sign. Moving the
cutting edge of the cutter toward the plus (+)
side of the scale will increase the size of the
mortise cut and decrease the size of the
tenon cut. Moving the cutting edge of the
cutter toward the minus (-) side will
decrease the size of the mortise cut and
increase the size of the tenon cut.
Figure 24
Figure 25

19
NOTE: One notch of the scale equals 1mm.
6. With your fingers on the shank portion of the
cutter, carefully rotate the cutter toward the
plus (+) or minus (-) position as needed.
7. When satisfied with the adjustment, tighten
both set screws firmly.
8. Re-attach the spring on the headstock, and
re-install the dust hood.
Drive Belt Tension
The tightness of the belt that drives the spindle
has been adjusted at the factory. Further
adjustment may be necessary after the machine
receives some use, as the belt may stretch
slightly during the “breaking in” process.
Belt tension can be adjusted by a socket head
cap screw at the rear of the headstock (Figure
26) which slides the motor toward or away from
the spindle. To tighten the belt, rotate this cap
screw clockwise with a 6mm hex wrench. To
loosen the belt, rotate the cap screw
counterclockwise. The belt should be just tight
enough to prevent it slipping on the spindle
during operation.
Replacing cutter
The cutter is very sharp; use
caution when working with or around cutter.
Disconnect machine from power source!
Failure to comply may cause serious injury.
1. To replace the cutter, loosen both set
screws (Figure 25) and carefully pull up on
the cutter until it is free from the spindle.
2. Slide the new cutter down into the spindle,
and align the cutting edge with your
previous setting on the spindle scale.
3. Tighten both set screws.
Oil Output
Oil is distributed through the air lines for
constant lubrication of the clamping system. The
oil output can be adjusted by rotating the oil
regulator knob (A, Figure 27). Turn the knob
counterclockwise to increase oil output,
clockwise to decrease oil output.
The level of oil should be checked occasionally
and re-filled as necessary. A minimum level is
marked on the window of the oil cup (C, Figure
27). Refill by removing the screw (B, Figure 27)
and pouring oil into the fill hole. When finished,
re-install screw (B, Figure 27). Use standard air
tool oil. This is available from your local
distributor, or can be found in most hardware
and tool stores.
Figure 26
Figure 27