Delta 26-2312 User manual

26-2312
To reduce the risk of serious injury, thoroughly read and comply with all warnings and instructions in this manual and on product
KEEP THIS MANUAL NEAR YOUR PRODUCT FOR EASY REFERENCE AND TO INSTRUCT OTHERS
12-inch Sliding Compound Miter Saw
www.DeltaMachinery.com
Instruction Manual

2
TABLE OF CONTENTS
NOTE: The manual cover illustrates the current production model. All other illustrations contained in the manual are representative
only and may not be exact depictions of the actual labeling or accessories included. They are intended for illustrative purposes only.
FEATURES ...................................................................... 2
PRODUCT SPECIFICATIONS........................................... 2
KNOW YOUR COMPOUND MITER SAW ........................... 5
IMPORTANT SAFETY INSTRUCTIONS...................... 6
SAFETY LOGOS.............................................................. 6
GENERAL POWER TOOL SAFETY WARNINGS......... 7
SAFETY INSTRUCTIONS FOR MITER SAWS............ 8
PROPOSITION 65 WARNING..................................... 9
POWER CONNECTIONS............................................. 10
DOUBLE INSULATION.................................................. 10
ELECTRICAL CONNECTION.......................................... 10
POLARIZED PLUGS...................................................... 10
EXTENSION CORDS .................................................... 10
UNPACKING................................................................. 11
REMOVING CONTENTS FROM PACKING........................ 11
PACKAGED CONTENTS LIST ........................................ 11
ASSEMBLY.................................................................... 12
TOOLS NEEDED .......................................................... 12
WORK CLAMP ............................................................. 13
DUST BAG .................................................................. 13
DUST PORT ATTACHMENT ........................................... 13
INSTALL/REMOVE THE BLADE ..................................... 14
INSTALLING WORKPIECE SUPPORT EXTENSIONS ......... 15
ADJUSTMENTS ............................................................ 15
BEVEL ALIGNMENT ..................................................... 15
MITER ALIGNMENT..................................................... 16
DEPTH STOP ADJUSTMENT ......................................... 17
FENCE EXTENSION ..................................................... 17
BEVEL LOCK TENSION ADJUSTMENT ........................... 17
SLIDE RESISTANCE..................................................... 18
MITER LOCK ADJUSTMENT.......................................... 18
THROAT PLATE ........................................................... 19
MOUNTING AND TRANSPORTATION ..................... 20
PREPARATIONS FOR TRANSPORTATION ....................... 20
MOUNTING SAW TO STABLE SURFACE ......................... 21
OPERATION ................................................................. 22
CUTTING WARPED MATERIAL...................................... 22
CLAMPING WIDE WORKPIECES ................................... 23
SUPPORTING LONG WORKPIECES ............................... 23
POWER SWITCH LOCK ................................................ 24
SHADOW LINE............................................................ 24
NON-SLIDING CUTS.................................................... 25
FOR MITER CUTS........................................................ 25
FOR BEVEL CUTS........................................................ 26
FOR COMPOUND MITER CUTS..................................... 26
SLIDE CUTS................................................................ 27
TIPS FOR CUTTING CROWN MOLDING......................... 28
AUXILIARY FENCE....................................................... 29
EXPAND WORKTABLE AREA ......................................... 30
MAINTENANCE............................................................ 31
KEEP MACHINE CLEAN ................................................ 31
GENERAL MAINTENANCE............................................. 31
BRUSH REPLACEMENT ................................................ 31
LUBRICATION............................................................. 31
TROUBLE SHOOTING................................................. 31
FAILURE TO START ..................................................... 31
ACCESSORIES ............................................................. 32
PARTS, SERVICES OR WARRANTY ASSISTANCE.. 33
FEATURES
BLADE DESCRIPTIONS
APPLICATION DIAMETER TEETH
Construction Saw Blades
(thin kerf with anti-stick rim)
General Purpose 12 inch (305mm) 40
Fine Crosscuts 12 inch (305mm) 60
Woodworking Saw Blades
(provide smooth, clean cuts)
Fine Crosscuts 12 inch (305mm) 80
PRODUCT SPECIFICATIONS
Cutting Capacity
(Maximum nominal
lumber sizes)
0° Miter/0° L/R Bevel: 2 inch x 14 inch
(Extended Capacity 2 x 18 inch)
45° Miter/0° L/R Bevel: 2 inch x 10 inch
0° Miter/45° L/R Bevel: 2 inch x 14 inch
45° Miter/45° L/R Bevel: 2 inch x 10 inch
Baseboard (Vertical) 6.5 inch
Crown (Vertically
Nested)
7.5 inch
Net Weight 57 lbs
Input 120 V~, 60hz, 15 Amps
Blade Arbor Hole 1 inch (with 5/8 inch reducing spacer)
Blade Diameter 12 inch
No Load Speed 4,000 r/min (RPM)
Blade Max Speed
Rating
5,500 r/min (RPM)
Number of Teeth 60
Blade Thickness 0.07 inch (1.8mm)
Blade Kerf 0.1 inch (2.6mm)
NOTE: ONLY use blades that are marked for speeds
of 4,000 r/min (RPM) or higher. A 12 inch Blade is the
required blade size for the Saw. Larger blades will come
into contact with the Blade Guards and smaller blades will
not be adequately guarded. Use crosscut blades only. DO
NOT use blades designed for ripping, combination blades
or blades with hook angles in excess of 7°.

3
FEATURES
Figure 1
On/O Switch and Lockout Hole
Trigger Lock
Shadow Guide ON/OFF Switch
Dust Bag
Depth Stop Screw/Depth Stop Plate
Bevel Scale and Indicator
Sliding Fence
Base
Throat Plate
F9
F11
F10
F17
F12
F11
F13
F12
F14
F13
F15
F14
F16
F15
F5
F5
F6
F6
F7
F7
F8
F8
F1
F1
F2
F2
F3
F3
F4
F4
F10
F9
F17
Work Table
Clamp
Blade
Lower Guard
Upper Guard
Spindle Lock
Back Fence Supports
T30 Torx/Blade Wrench
F16

4
Motor End Cap
Carrying Handle
Head Lock Pin
Bevel Detent Latch (2)
Mounting Holes (4)
Miter Scale and Indicator
Miter Detent Override Button
FEATURES
Figure 2
F25
F25
F19
F18
F26
F26
F20
F19
F27
F28
F21
F20
F21
F28
F27
F22
F22
F29
F23
F23
F30
F24
F24
F31
F18 Miter Lock Knob
Bevel Lock/Unlock Handle
Miter Detent Lock/Unlock Button
Support Extension (2)
Glide Adjustment
Baseboard Position Notch
Slide Lock Lever
F29
F30
F31

5
KNOW YOUR COMPOUND MITER SAW
FEATURES
1. On/Off Switch and Lockout Hole: This saw is
activated by an easy to use, hand operated, power
on/off switch. When not in use the saw should be
disconnected from the power supply and locked using a
padlock inserted through the lockout hole located on the
power on/o switch.
2. Trigger Lock: This switch helps prevent accidental
start, must be engaged along with power switch to
operate machine.
3. Shadow Guide ON/OFF Switch: This switch turns
on/o the shadow line guide feature.
4. Dust Bag: The dust bag collects and contains the saw
dust during the cutting operations.
5. Depth Stop Screw/Depth Stop Plate: The screw/
depth stop plate can be used to make a non-through
cut. The screw/depth stop screw allows the depth of cut
to be adjusted.
6. Bevel Scale and Indicator: These indicate the
current blade bevel position and are adjustable; This
allows for ne calibration of the blade alignment.
7. Sliding Fence: The fence supports the workpiece when
making all cuts. The sliding fences are adjustable.
8. Base: Supports the tool and features mounting holes.
9. Throat Plate (Kerf Plate): The throat plate supports
the workpiece from underneath, on both sides of the
blade, to minimize workpiece tear out.
10. Work Table: The die-cast aluminum work table
provides a level and sturdy work surface.
11. Clamp: The vertical work clamp helps to position and
secure the workpiece to the work table. This provides
for safer operation and more accurate cuts.
12. Blade: A 12 inch blade is included with the compound
miter saw.
13. Lower Guard: The lower blade guard is made of
shock-resistant, see-through plastic that provides
protection from the blade.
14. Upper Guard: Cast aluminum protects user from blade.
15. Spindle Lock: Engage the spindle lock when changing
the blade in order to hold the blade into position while
you loosen the blade bolt.
16. Back Fence Supports: These provide workpiece
support and additional cut capacity when the sliding
fences are removed.
17. T30 Torx/Blade Wrench: This wrench features a L
key Torx head with an Allen Wrench and should be used
when removing, installing, or changing the blade.
18. Motor End Cap: This provides access to your saw’s
motor’s Brush Caps/Carbon brushes, in the event they
need to be inspected or replaced.
19. Carrying Handle: Use this to transport your saw.
Make sure the Slide Lock Lever and Head Lock Pin are
engaged before transporting.
20. Head Lock Pin: This allows the saw head to be locked
into the full down position, for transportation.
21. Bevel Detent Latch (2): This latch engages/
disengages the bevel detent pin which allows the bevel
angle to be locked into one of the detent positions.
22. Mounting Holes (4): Enables you to securely mount
the tool to a stable surface.
23. Miter Scale and Indicator: These indicate the current
blade miter position and are adjustable; This allows for
ne calibration of the blade alignment.
24. Miter Detent Override Button: This button holds the
miter detent into the unlocked position which allows
free movement of the miter arm without holding the
miter detent lock/unlock button.
25. Miter Lock Knob: This knob locks the blade miter
angle securely into place. ALWAYS lock before making
any cuts.
26. Bevel Lock/Unlock Handle: This handle locks the
blade bevel angle securely into place. ALWAYS lock
before making any cuts.
27. Miter Detent Lock/Unlock Button: This button
allows you to release the miter arm from the positive
stops and freely rotate the miter arm/work table.
28. Support Extension (2): These act as table extensions
to help support longer work pieces.
29. Glide Adjustment: This adjust the friction for the front
to back, saw head siding movement.
30. Baseboard Position Notch: This notch, when
engaged, allows this saw to operate like a chop saw.
This eliminates the sliding ability, but still allows the but
still allows a precise, stable cut.
31. Slide Lock Lever: This allows the saw head to
be locked into the fully retracted position, for
transportation.
32. E-Brake (Not Shown): This brake will slow your blade
down quickly when the power switch is disengaged
(release hand from power switch).

6
IMPORTANT SAFETY INSTRUCTIONS
This manual contains information that is important for you to know and understand. This information relates to protecting YOUR
SAFETY and PREVENTING EQUIPMENT PROBLEMS. The symbols below are used to help you recognize this informantion. Please
read the manual and pay attention to these sections.
Additional information regarding the safe and proper operation of this tool is available from the following sources:
• Power Tool Institute, 1300 Sumner Avenue, Cleveland, OH 44115-2851 or on-line at www.powertoolinstitute.com
• National Safety Council, 1121 Spring Lake Drive, Itasca, IL 60143-3201
• American National Standards Institute, 25 West 43rd Street, 4 oor, New York, NY 10036 www.ansi.org - ANSI 01.1 Safety
Requirements for Woodworking Machines
• U.S. Department of Labor regulations www.osha.gov
Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.
Used without the safety alert symbol indicates potentially hazardous situation which, if not avoided, may result in
property damage.
SAFETY LOGOS
CAREFULLY READ AND FOLLOW ALL WARNINGS AND INSTRUCTIONS ON YOUR PRODUCT
AND IN THIS MANUAL. SAVE THIS MANUAL. MAKE SURE ALL USERS ARE FAMILIAR WITH ITS WARNINGS
AND INSTRUCTIONS WHEN USING THE TOOL. Improper operation, maintenance or modication of tools or equipment could
result in serious injury and/or property damage.
Some of the following symbols may be used on the tool. Please study them and learn their meaning. Proper interpretation on these symbols
will allow you to operate the tool better and safer.
SYMBOL NAME DESIGNATION/EXPLANATION
Safety Alert Indicates a potential personal injury hazard.
Read Operator's Manual To reduce the risk of injury, user must read and understand operator's manual before using this
product.
Eye Protection Always wear eye protection with side shields marked to comply with ANSI Z87.1.
No Hands Symbol Failure to keep your hands away from the blade will result in serious personal injury.
Wet Conditions Alert Do not expose to rain or use in damp locations.
Pinch Warning Always watch for movement paying extra attention to potential areas where pinching could occur.
V Volts Voltage
A Amperes Current
Hz Hertz Frequency (cycles per second)
min Minutes Time
~/AC Alternating Current Type of current
ⁿ₀No Load Speed Rotational speed, at no load
.../min Per Minute Revolutions, strokes, surface speed, orbits, etc., per minute
Lbs Pounds Unit of weight
Kg Kilograms Unit of weight
RPM Revolutions Per Minute Speed of rotation of machine
PH:1 Phase 1 This is a 1 phase motor
Double Insulation
Double insulation is a concept in safety in electric power tools, which eliminates the need for the usual three-
wire grounded power cord. All exposed metal parts are isolated from the internal metal motor components with
protecting insulation. Double insulated tools do not need to be grounded.

7
GENERAL POWER TOOL SAFETY WARNINGS
The term “power tool” in the warnings refers to your mains-operated (corded) power tool or BATTERY-operated (cordless) power tool.
1. Work area safety
a. Keep work area clean and well lit.Cluttered or dark areas invite accidents.
b. Do not operate power tools in explosive atmospheres, such as in the presence of ammable liquids,
gases or dust.Power tools create sparks which may ignite the dust or fumes.
c. Keep children and bystanders away while operating a power tool.Distractions can cause you to lose control.
2. Electrical safety
a. Power tool plugs must match the outlet.Never modify the plug in any way.Do not use any adapter with
earthed (grounded) power tools.Unmodied plugs and matching outlets will reduce risk of electric shock.
b. Avoid body contact with earthed or grounded surfaces, such as pipes, radiators, ranges and
refrigerators.There is an increased risk of electric shock if your body is earthed or grounded.
c. Do not expose power tools to rain or wet conditions.Water entering a power tool will increase the risk of
electric shock.
d. Do not abuse the cord.Never use the cord for carrying, pulling or unplugging the power tool.Keep cord
away from heat oil, sharp edges or moving parts.Damaged or entangled cords increase the risk of electric
shock.
e. When operating a power tool outdoors, use an extension cord suitable for outdoor use.Use of a cord
suitable for outdoor use reduces the risk of electric shock.
f. If operating a power tool in a damp location is unavoidable, use a ground fault circuit interrupter (GFCI)
protected supply.Use of an GFCI reduces the risk of electric shock.
3. Personal safety
a. Stay alert, watch what you are doing and use common sense when operating a power tool.Do not use
a power tool while you are tired or under the inuence of drugs, alcohol or medication.A moment of
inattention while operating power tools may result in serious personal injury.
b. Use personal protective equipment.Always wear eye protection.Protective equipment such as dust mask,
non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries.
c. Prevent unintentional starting. Ensure the switch is in the o-position before connection to power
source, picking up, or carrying the tool. Carrying power tools with your nger on the switch or energising power
tools that have the switch on invites accidents.
d. Remove any adjusting key or wrench before turning the power tool on.A wrench or a key left attached to a
rotating part of the power tool may result in personal injury.
e. Do not overreach.Keep proper footing and balance at all times.This enables better control of the power tool
in unexpected situations.
f. Dress properly.Do not wear loose clothing or jewelery.Keep your hair, clothing and gloves away from
moving parts.Loose clothes, jewelery or long hair can be caught in moving parts.
g. If devices are provided for the connection of dust extraction and collection facilities, ensure these are
connected and properly used.Use of dust collection can reduce dust-related hazards.
h. Do not let familiarity gained from frequent use of tools allow you to become complacent and ignore tool
safety principles.A careless action can cause severe injury within a fraction of a second.
4. Power tool use and care
a. Do not force the power tool.Use the correct power tool for your application.The correct power tool will do
the job better and safer at the rate for which it was designed.
b. Do not use the power tool if the switch does not turn it on and o.Any power tool that cannot be controlled
with the switch is dangerous and must be repaired.
c. Disconnect the plug from the power source before making any adjustments, changing accessories, or
storing power tools.Such preventive safety measures reduce the risk of starting the power tool accidentally.
d. Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power
tool or these instructions to operate the power tool.Power tools are dangerous in the hands of untrained users.
Read all safety warnings, instructions, illustrations and specications provided with this power tool.
Failure to follow all instructions listed below may result in electric shock, re and/or serious injury.
Save all warnings and instructions for future reference.

8
SAFETY INSTRUCTIONS FOR MITER SAWS
e. Maintain power tools and accessories.Check for misalignment or binding of moving parts, breakage of
parts and any other condition that may aect the power tool’s operation.If damaged, have the power
tool repaired before use.Many accidents are caused by poorly maintained power tools.
f. Keep cutting tools sharp and clean.Properly maintained cutting tools with sharp cutting edges are less likely to
bind and are easier to control.
g. Use the power tool, accessories and tools bits etc.in accordance with these instructions, taking into
account the working conditions and the work to be performed.Use of the power tool for operations dierent
from those intended could result in a hazardous situation.
h. Keep Handles and grasping surfaces dry, clean and free from oil and grease.Slippery handles and grasping
surfaces do not allow for safe handling and control of the tool in unexpected situations.
5. Service
a. Have your power tool serviced by a qualied repair person using only identical replacement parts.This
will ensure that the safety of the power tool is maintained.
1.
a. Miter saws are intended to cut wood or wood-like products, they cannot be used with abrasive cut-o
wheels for cutting ferrous material such as bars, rods, studs, etc.Abrasive dust causes moving parts such as
the lower guard to jam.Sparks from abrasive cutting will burn the lower guard, the kerf insert and other plastic parts.
b. Use clamps to support the workpiece whenever possible.If supporting the workplace by hand, you must
always keep your hand at least 100mm from either side of the saw blade.Do not use this saw to cut
pieces that are too small to be securely clamped or held by hand.If your hand is placed too close to the saw
blade, there is an increased risk of injury from blade contact.
c. The workpiece must be stationary and clamped or held against both the fence and the table.Do not feed
the workpiece into the blade or cut “freehand” in any way.Unrestrained or moving workpieces could be thrown
at high speeds, causing injury.
d. Push the saw through the workpiece.Do not pull the saw through the workpiece.To make a cut, raise
the saw head and pull it out over the workpiece without cutting, start the motor, press the saw head
down and push the saw through the workpiece.Cutting on the pull stroke is likely to cause the saw blade to
climb on top of the workpiece and violently throw the blade assembly towards the operator.
e. Never cross your hand over the intended line of cutting either in front or behind the saw blade.
Supporting the workpiece “cross handed” i.e.holding the workpiece to the right of the saw blade with your left hand or
vice versa is very dangerous.
f. Do not reach behind the fence with either hand closer than 4 inches from either side of the saw blade, to
remove wood scraps, or for any other reason while the blade is spinning.The proximity of the spinning saw
blade to your hand may not be obvious and you may be seriously injured.
g. Inspect your workpiece before cutting.If the workpiece is bowed or warped, clamp it with the outside
bowed face toward the fence.Always make certain that there is no gap between the workpiece, fence
and table along the line of the cut.Bent or warped workpieces can twist or shift and may cause binding on the
spinning saw blade while cutting.There should be no nails or foreign objects in the workpiece.
h. Do not use the saw until the table is clear of all tools, wood scraps, etc., except for the workpiece.Small
debris or loose pieces of wood or other objects that contact the revolving blade can be thrown with high speed.
i. Cut only one workpiece at a time.Stacked multiple workpieces cannot be adequately clamped or braced and may
bind on the blade or shift during cutting.
j. Ensure the miter saw is mounted or placed on a level, rm work surface before use. A level and rm work
surface reduces the risk of the miter saw becoming unstable.
k. Plan your work.Every time you change the bevel or miter angle setting, make sure the adjustable fence
is set correctly to support the workpiece and will not interfere with the blade or the guarding system.
Without turning the tool “ON” and with no workpiece on the table, move the saw blade through a complete simulated
cut to assure there will be no interference or danger of cutting the fence.
GENERAL POWER TOOL SAFETY WARNINGS

9
SAFETY INSTRUCTIONS FOR MITER SAWS
PROPOSITION 65 WARNING:
SAVE THESE INSTRUCTIONS.
Refer to them often and use them to instruct others.
If tool is loaned to someone, also loan them these instructions.
l. Provide adequate support such as table extensions, saw horses, etc. for a workpiece that is wider or
longer than the table top. Workpieces longer or wider than the miter saw table can tilt if not securely supported. If
the cut-o piece or workpiece tips, it can lift the lower guard or be thrown by the spinning blade.
m. Do not use another person as a substitute for a table extension or as additional support. Unstable support
for the workpiece can cause the blade to bind or the workpiece to shift during the cutting operation pulling you and
the helper into the spinning blade.
n. The cut-o piece must not be jammed or pressed by any means against the spinning saw blade. If
conned, i.e. using length stops, the cut-o piece could get wedged in the blade and thrown violently.
o. Always use a clamp or a xture designed to properly support round material such as rods or tubing. Rods
have a tendency to roll while being cut, causing the blade to “bite” and pull the work with your hand into the blade.
p. Let the blade reach full speed before contacting the workpiece. This will reduce the risk of the workpiece
being thrown.
q. If the workpiece or blade becomes jammed, turn the miter saw o. Wait for all moving parts to stop
and disconnect the plug from the power source and/or remove the battery pack. Then work to free the
jammed material. Continued sawing with a jammed workpiece could cause loss of control or damage to the miter
saw.
r. After finishing the cut, release switch, hold the saw down and wait for the blade to stop before
removing the cut-o piece. Reaching with your hand near the coasting blade is dangerous.
s. Hold the handle, rmly, when making an incomplete cut or when releasing the switch before the saw
head is completely in the position. The braking action of the saw may cause the saw to be suddenly pulled
downward, causing a risk of injury.
t. Saw Head lock pin is for storage and transport only. This saw should never be locked in the down position while
making cuts.
u. Do not operate saw without guards in place.
Dust created by power sanding, sawing, grinding, drilling, and other construction activities may contain chemicals
known to the state of California to cause cancer, birth defects or other reproductive harm. Some examples are:
• Lead from lead-based paints
• Crystalline silica from bricks and cement and other masonry products
• Asbestos dust
• Arsenic and chromium from chemically-treated lumber
Your risk from these exposures 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 dust masks that are specically designed to lter
out microscopic particles.
Avoid prolonged contact with dust from power sanding, sawing, grinding, drilling, and other construction activities.
Wear protective clothing and wash exposed areas with soap and water.

10
POWER CONNECTIONS
This saw is equipped with a 15-amp motor for use with a 120-
volt, 60-HZ alternating current.
For voltage, the wiring in a shop is as important as the motor’s
rating. A line intended only for lights may not be able to
properly carry the current needed for a power tool motor; wire
that is heavy enough for a short distance may be too light for
a greater distance; and a line that can support one power tool
may not be able to support two or three. A separate electrical
circuit should be used for your machines.
This machine is double insulated. Double insulation is a concept in safety in electric power tools, which eliminates the need for
the usual three-wire grounded power cord. All exposed metal parts are isolated from the internal metal motor components with
protecting insulation. Double insulated tools do not need to be grounded.
NOTE: Servicing of a tool with double insulation requires extreme care and knowledge of the system and should be performed by a
qualified service technician. For service, we suggest you return the tool to the nearest authorized service center for repair.
ALWAYS use identical replacement parts when servicing.
Your machine is wired for 120 volts, 60 HZ alternating current. Before connecting the machine to the power source, make sure the
switch is in the “OFF” position.
DOUBLE INSULATION
DO NOT EXPOSE THE MACHINE TO RAIN OR OPERATE THE MACHINE IN DAMP LOCATIONS.
The double insulated system is designed to protect the user from shock resulting from a break in the tool’s internal
insulation. However, it is important to observe normal safety precautions to avoid electrical shock.
This tool has a precision-built electric motor. It should be connected to a POWER SUPPLY THAT IS 120 VOLTS, 60 HZ, AC ONLY
(NORMAL HOUSEHOLD CURRENT IN THE U.S. AND CANADA).
DO NOT operate this tool on direct current (DC). A substantial voltage drop will cause a loss of power and the motor will overheat.
If the tool does not operate when plugged into an outlet, double-check the power supply.
To reduce the risk of electric shock, this equipment has a polarized plug (one blade is wider than the other). This plug will fit in a
polarized outlet only one way. If the plug does not fully fit in the outlet reverse the plug. If it still does not fit, contact a qualified
electrician to install the proper outlet. DO NOT change the plug in any way.
When using a power tool at a considerable distance from a power source, be sure to use an extension cord that has the capacity to
handle the current the tool will draw. An undersized cord will cause a drop in line voltage, resulting in overheating and loss of power.
Use the chart to determine the minimum wire size required in an extension cord. ONLY round jacketed cords listed by Underwriter’s
Laboratories (UL) should be used.
NOTE: Before using any extension cord, inspect it for loose or
exposed wires and cut or worn insulation. ** Ampere rating (on total data label)
12A- 16A
Cord Length Wire Size
25' 14 AWG
50' 12 AWG
** Used on 12 gauge - 20 amp circuit
NOTE: AWG = American Wire Gauge
ELECTRICAL CONNECTION
POLARIZED PLUGS
EXTENSION CORDS
KEEP the extension cord clear of the work
area. Position the cord so that it will not get caught on lumber,
tools or other obstructions while you are working with a
power tool. Failure to do so can result in serious personal
injury. Check extension cords before each use. If damaged
replace immediately. NEVER use tool with a damaged cord,
since touching the damaged area could cause electrical shock
resulting in serious injury.
This circuit should not be a thinner gauge than than #12 wire
and should be protected with a 20-amp time lag fuse and/or
circuit breaker. If an extension cord is used, use ONLY 3-wire
extension cords which have 3-prong grounding-type plugs
and matching receptacle which will accept the machine’s plug.
Before connecting the machine to the power line, make sure
the switch is in the “OFF” position and be sure that the electric
current is of the same characteristics as indicated on the
machine. A substantial voltage drop will cause a loss of power
and overheat the motor. It may also damage the machine.

11
UNPACKING
REMOVING CONTENTS FROM PACKAGING
Check shipping carton and machine for damage before unpacking. Carefully remove packaging materials, parts
and machine from shipping carton. ALWAYS check for and remove protective shipping materials around motor and moving parts.
Lay out all parts on a clean work surface.
• Compare package contents to Packaged Contents List prior to assembly to make sure all items are present. Carefully inspect
parts to make sure no damage occurred during shipping. If any parts are missing, damaged or pre-assembled, DO NOT
assemble. Instead, call DELTA® Customer Service at (toll free) 1-800-223-7278.
• If any parts are missing, DO NOT attempt to plug in the power cord and turn the power on. The saw should ONLY be
energized after all parts have been located and correctly assembled.
• This saw is packaged and shipped with saw head secured in the down position. Please see “PREPARATIONS FOR
TRANSPORTATION” section of this manual for instructions on how to use the saw head lock pin. Once the saw head is in the
upright position, remove Styrofoam packaging block and discard.
• Remove the plastic tie-wrap securing the sliding mechanism.
PACKAGE CONTENTS LIST DESCRIPTION
Figure 3
PC1
PC2
PC3
PC4
PC5
PC6
PC7
PC8
PC9
DELTA®26-2312 miter saw
T30 Torx/Blade Wrench
(on machine) *see Figure 1 for storage location
Work Clamp
Dust Bag
Support Extension (2)
PC1
PC2
PC3
PC4
PC5
PC6
PC7
PC8
PC9
Extension Clamp (2)
Split Lock Washer (2)
Wing Nut (2)
2 1/2 inch Dust Port Adapter

12
• DO NOT attempt to modify this Tool or create accessories not recommended for use with this Tool. Any such alteration or
modication is misuse and could result in a hazardous condition.
• DO NOT connect to power supply until assembly is complete. Failure to comply could result in accidental starting.
• DO NOT start the Miter Saw without checking for interference between the Blade and the Miter Fence. Damage could result to
the Blade if it strikes the Miter Fence during operation of the Saw.
• ALWAYS recheck for interference when changing the miter angle.
• ALWAYS secure this Saw to a stable work surface before any use. The Saw can tip over if the Saw Head is released suddenly
and the Saw is not secured to a work surface.
• DO NOT operate this Tool if any parts are damaged or missing until the parts are replaced. Please call DELTA® Customer Service
at (toll free) 1-800-223-7278.
Figure 4
TOOLS NEEDED
ASSEMBLY
T20 Torx Wrench
T25 Torx Wrench
4mm Hex Wrench
Flat Head Screwdriver (for brush replacement)
Phillips Screwdriver (for the dust port adapter)
17mm Combination Wrench
10mm Combination Wrench (2)
Framing Square
Combination Square

13
WORK CLAMP
See Figure 5.
The Vertical Work Clamp secures the workpiece to the table to
provide more stability and keeps the workpiece from creeping
toward the saw blade.
To install the Vertical Work Clamp do the following:
1. Place the Clamp Shaft Ain either hole Bon the
Miter Base.
2. Slide the clamp arm so the pad touches the workpiece.
3. Rotate the knob CClockwise to secure the workpiece.
To loosen, turn Counterclockwise.
DUST BAG
DUST PORT ATTACHMENT
See Figure 6.
The Tool includes a Dust Bag PC4 that attaches over the Dust
Port Don the Upper Blade Guard. Slide the Plastic Collar
onto the Dust Port on the back of the Saw Head.
NOTE: To remove the Dust Bag for emptying, simply reverse
the above procedure.
See Figure 7.
The Tool includes a 2 1/2 inch Dust Port Adapter PC9 that
attaches over the rear Dust Port on the Upper Blade Guard. It
can be used to connect your miter saw to a standard 2 1/2
inch vacuum or dust collection hose.
1. The Dust Port Adapter Set-Screw Fshould be aligned
with the label located on the Dust Port E.
2. Tighten the Set-Screw when aligned to the arrow found
on the label.
NOTE: DO NOT over tighten.
ASSEMBLY
Figure 5
Figure 6
Figure 7
A
D
PC4
C
B
E
PC9
F

14
F13
F15
ASSEMBLY
Figure 10
Figure 9
INSTALL/REMOVE THE BLADE
Figure 8
A
A
A 12 inch Blade is the required blade size for
the Saw. Larger blades will come into contact with the Blade
Guards and smaller blades will not be adequately guarded.
The 26-2312 Saw comes with the blade pre-installed. For Blade
removal or replacement:
1. Make sure the Saw is unplugged.
2. Raise the Saw Arm to the full upright position.
3. Rotate the Lower Blade Guard F13 up to expose the
Blade Bolt A. Hold the Lower Blade Guard with the
Right thumb, and press the Spindle Lock Button F15
with the Right index nger at the same time.
See Figure 8.
4. Carefully rotate the blade until the Spindle locks in
place.
NOTE: To aid blade change, raise the Lower Blade Guard and
loosen the Blade Bolt Cover Screw Ba few turns to hold the
Lower Blade Guard up.
See Figure 9.
NOTE: Securely tighten the screw back in place when completing
the Blade change.
5. Using the supplied Blade Wrench, remove the Blade Bolt
Aby turning it Clockwise.
NOTE: The Blade Bolt has left-hand threads.
6. Remove ONLY the Outer Blade Washer Cand the
Blade F12 , leaving the Inner Blade Washer on the
Spindle. Proceed with caution, carefully removing the
blade. See Figure 10.
7. Carefully t Saw Blade inside the Blade Guard and guide
it onto the Spindle, ensuring the Teeth of the Blade are
facing down at the front of the Saw.
For blade assembly:
8. Align the double “D” Flats on the Blade Washer C
with the ats on the Spindle and t the Washer onto the
Spindle.
9. Lock the Spindle by depressing the Spindle Lock Button.
Screw in the Blade Bolt A, remembering to thread it
Counterclockwise. Tighten Blade Bolt securely using the
provided Blade Wrench.
ALWAYS install the Blade with the Blade
Teeth and the arrow on the side of the Blade pointing down at
the front of the Saw. The direction of the Blade rotation is also
stamped with an arrow on the Upper Blade Guard.
10. Raise and lower the Saw Arm to ensure that the Arm
and Blade Guard move freely.
Make sure the Spindle Lock Button F15 , see
Figure 8, is not engaged before reconnecting Saw to power
source. NEVER engage Spindle Lock Button when Blade is
rotating.
NOTE: Some illustrations in this manual indicate ONLY
portions of the Saw. This is done in order to more clearly show
key areas and components of the Saw. NEVER operate the
Saw without all Guards securely in place and in good operating
condition.
B
C
F12

15
ASSEMBLY
Figure 12
ADJUSTMENTS
BEVEL ALIGNMENT
Your saw is calibrated at the factory to cut true. Over time the
saw’s calibration may drift and will need to be re-calibrated.
See Figure 12.
1. Unplug the saw.
2. Lower the saw head all the way down to the transport
position and engage the saw head lock pin to hold it
in place. Push the saw head into the fully retracted
position and engage the slide prevention lock to hold it
in place.
3. Set the miter position to 0° and engage the miter lock
knob so the table will not move.
4. Set the bevel position to 0°. Engage the bevel latch
lever, so the detent pin locks into the bevel scale.
5. Place a combination square Aagainst the table and
the face of the saw blade.
NOTE: Make sure the square contacts the flat part of the
blade and not the teeth.
6. Rotate the blade by hand and check the blade-to-table
alignment at several points. If the blade face is not ush
with the square you will need to adjust the bevel scale
F6 .
7. Using a 10mm combination wrench, loosen the three
screws Band adjust the bevel scale position. Set so
the table and blade are ush against the combination
square. Make sure the bevel lock/unlock handle is not
locked, so the scale may be adjusted.
LOCK
UNLOCK
A
F6
C
B
Figure 11
INSTALLING WORKPIECE
SUPPORT EXTENSIONS
See Figure 11.
To assemble the Support Extensions:
1. Insert one of the Support Extensions PC5 to the
underside of the Base at the cast-in Handle cut-outs
B.
2. Make sure Support Extension PC5 is ush with the Base
and inserted into the rounded slots of the cut-outs B.
The Rivets Care used to prevent the Support
Extension PC5 from sliding out of the Base during use.
These Rivets should be positioned on the inside of the
Base.
3. Place the Extension Clamp PC6 onto the Support
Extension and the screw that is pre-attached to the
Base.
4. Once the Extension Clamp PC6 is in place, put the Split
Lock Washer PC7 rst and screw the Wing Nut PC8 onto
the screw.
5. Tighten the Wing Nut PC8 to fully secure the Support
Extension PC5 .
6. Repeat on the other side.
PC6
PC7
PC5
CPC8
B
8. Re-tighten the three screws and re-check the blade-to-
table alignment.
NOTE: After squaring adjustments have been made, it may be
necessary to loosen the indicator screws Cand reset them
to zero.

16
ADJUSTMENTS
MITER ALIGNMENT
Your saw is calibrated at the factory to cut true. Over time the
saw’s calibration may drift and will need to be re-calibrated.
See Figure 13.
1. Unplug the Saw.
2. Lower the saw head all the way down to the transport
position and engage the saw head lock pin F20 to hold
it in place. Push the saw head into the fully retracted
position and engage the slide lock lever F31 to hold it in
place.
3. Set the miter position to 0° and allow the miter detent
button F28 to lock into position.
4. Set the bevel position to 0°. Engage the bevel detent
latch F21 to lock bevel angle.
5. Place a framing square Aagainst the fence and the
face of the saw blade.
NOTE: Make sure the square contacts the flat part of the blade
and not the teeth.
See Figure 14.
6. If the blade face is not ush with the square you will
need to adjust the miter scale B.
7. Loosen the four screws Cand move the miter table to
adjust the miter scale position. Set so the fence and
blade are ush against the framing square. Make sure
the miter lock knob is not locked, so the miter scale may
be adjusted.
8. Re-tighten the four screws and re-check the miter scale
alignment.
NOTE: After squaring adjustments have been made, it may be
necessary to loosen the indicator screws Dand reset them
to zero.
Figure 14
Figure 13
LOCK
UNLOCK
C
D
A
B
F31
F28
F21
F20

17
A
F5
Figure 15
Figure 17
DEPTH STOP ADJUSTMENT
BEVEL LOCK TENSION
ADJUSTMENT
Figure 16
FENCE EXTENSION
ADJUSTMENTS
This miter saw is equipped with an adjustable depth stop for
making non-through cuts.
See Figure 15 and follow these instructions in order to
set the depth stop at a specific cut depth:
1. Flip the depth stop plate F5 Counterclockwise into the
down position.
2. The cut depth can now be adjusted by turning the
depth stop screw F5 .
3. Lock the adjustment screw by turning the wing-nut A
until snug against the depth stop plate F5 .
NOTE: When finished with non-through cut, flip depth stop
plate F5 Clockwise to return to through cut position.
See Figure 16.
This saw is equipped with an adjustable sliding fence. To
extend or retract the fence follow these instructions:
1. Loosen the lock knob Bby rotating Counterclockwise
and then slide the fence F7 into the desired position.
2. Make sure to re-tighten lock knob Bby rotating
Clockwise.
ALWAYS check to make sure lock knob B
is tightened before making a cut. Failure to do so may result in
injury.
See Figure 17.
1. With the miter saw head in an unindexed and locked
bevel angle, check that the head will hold it’s position
when pushed with moderate sideways pressure.
2. If head moves easily, then adjustment is required.
3. Release the bevel lock/unlock lever.
4. Hold the central post Cusing a T-25 Torx wrench and
tighten the 17mm Lock Nut Duntil the head will resist
side pressure when locked in an unindexed bevel angle.
NOTE: Correct tension is when the cutting head will hold
position when not indexed and unlocked. This ONLY applies at
angles 0 - 20°.
D
C
F5
TIGHTEN
LOOSEN
F7
B

18
ADJUSTMENTS
Figure 18
Figure 19
SLIDE RESISTANCE
MITER LOCK ADJUSTMENT
LOCK
UNLOCK
C
B
See Figure 18.
The slide resistance (friction) on your saw is adjustable. Use a
4mm Hex wrench.
1. Locate the glide adjustment screw Aon the saw
arms. Turn Clockwise to tighten the sliding friction.
2. Turn Counterclockwise to loosen the sliding friction.
See Figure 19.
If your saw’s miter lock does not lock securely, you may be
required to tighten the miter lock adjustment. This adjustment
is located on the underside of the miter saw arm. To make
adjustments:
1. First unlock the miter lock knob. Use a 10mm open
ended wrench to loosen (Counterclockwise) lock nut
Bwhile holding the adjustment rod Cin place
using another 10mm open end wrench.
2. Turn the adjustment rod in order to tighten/loosen the
miter lock.
3. Lock/Unlock the miter lock knob to check the miter lock
adjustment.
4. Once you have set your miter lock adjustment
re-tighten the lock nut Bto prevent this adjustment
from loosening over time.
ALWAYS check to make sure the miter lock
is locked tightly into position before using your saw. Failure to
follow these instructions could result in serious personal injury
due to the miter lock slipping during use of the saw.
TIGHTEN
LOOSEN
A

19
ADJUSTMENTS
Figure 21
Figure 20
THROAT PLATE
See Figures 20 and 21.
ONLY use DELTA®authorized service parts.
Using non-authorized parts can results in damage to your
machine and serious personal injury.
In the event that your throat plate needs to be replaced for
any reason, follow these instructions.
1. Using a T20 Torx driver OR a at head screwdriver,
remove the six screws Awhich secure the throat
plate. Remove the throat plate o the work table.
NOTE: To allow for clearance to the 2 rear screws, the
worktable will need to be mitered to the left and right.
2. Replace the throat plate ONLY using a DELTA®
authorized service part.
3. Re-tighten the six screws Awhich secure the throat
plate.
A

20
Before moving/transporting your saw, it is important to make sure all of the following steps have been followed to
ensure a safe condition for transportation. Failure to do so can result in serious personal injury.
• ALWAYS turn the power o and unplug saw before transporting.
• ALWAYS secure power cord to avoid any snags or hang ups during transportation.
• ALWAYS lift using the strength of your legs to lift saw; never use your back muscles to lift saw.
• DO NOT use power On/O switch handle or power cord to lift your saw.
• ALWAYS place the saw onto a stable and level surface with clearance for handling and maneuvering.
SAW HEAD LOCK PIN
See Figure 22.
ALWAYS lock saw head in the down position before
transporting saw. To engage saw head lock pin F20 : Push saw
head to the down position then push-in lock pin.
Saw Head lock pin is for storage and
transport ONLY. This saw should NEVER be locked in the
down position while making cuts.
SLIDE LOCK LEVER
See Figure 22.
ALWAYS engage the slide lock lever F31 before transporting
this saw. To engage slide lock lever: Push saw head to the fully
retracted position then swing the slide lock lever down.
Figure 22
MOUNTING AND TRANSPORTATION
PREPARATIONS FOR TRANSPORTATION
CARRY HANDLE
See Figure 23.
For transportation, use the included carry handle F19 . You may
also lift using the cast-in handle cut-outs Aon both sides of
the saw base. DO NOT lift or carry using the Support Extensions.
Figure 23
F20
F19
A
F31