DeWalt DHS780 Original Instructions Manual page 37

Package Contents
The package contains:
1 DHS780 miter saw
1 Saw blade
In bag:
1 Blade wrench
1 Material clamp
1 Dustbag
1 Instruction manual
May include:
1 DCB500 D WALT corded power supply
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2 54V batteries
1 Dual port charger
• Check for damage to the tool, parts or accessories which may have occurred during transport.
• Take the time to thoroughly read and understand this manual prior to operation.
Markings on Tool
The following pictograms are shown on the tool:
Read instruction manual before use.
Wear ear protection.
Wear eye protection.
Carrying point.
Keep hands away from blade.
Do not stare directly into the light source.
Date Code Position (Fig. D)
The date code 31 , which also includes the year of manufacture, is printed into the housing.
Example:
Year of Manufacture
Description (Fig. A)

WARNING: Never modify the power tool or any part of it. Damage or personal injury
could result.
Lower guard
1
Head up-lock release lever
2
Operating handle
3
Carrying handle
4
5 Trigger switch
Trigger lock-off button
6
7 Bench mounting holes
Mitre lock handle
8
Mitre release button
9
Mitre detent override lever
10
Kerf plate
11
12 Mitre scale pointer
Mitre scale
13
14 Mitre scale screws
Hand indentations
15
Fence
16
Bevel scale
17
Bevel scale pointer
18
Intended Use
Your D WALT DHS780 Mitre Saw has been designed for professional cutting of wood, wood
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products and plastics. It performs the sawing operations of cross-cutting, bevelling and
mitring easily, accurately and safely.
This unit is designed for use with a nominal blade diameter 305 mm carbide tip blade.
DO nOT use under wet conditions or in the presence of flammable liquids or gases.
This mitre saw is professional power tools. DO nOT let children come into contact with the
tool. Supervision is required when inexperienced operators use this tool.

WARNING! Do not use the machine for purposes other than intended.
Young children and the infirm. This appliance is not intended for use by young children
•
or infirm persons without supervision.
2016 XX XX
Lock down pin
19
Slide lock lever
20
XPS™ on/off switch
21
Battery packs
22
23 Rails
Rail lock knob
24
25 Rail adjustment screw
Dust port
26
Hex wrench
27
Bevel lock knob
28
Clamp hole
29
30 Bevel stop override knob
Date code (Fig. D)
31
32 Battery release buttons
Wing nut
33
Depth adjustment screw
34
Grooving stop
35
• This product is not intended for use by persons (including children) suffering from
diminished physical, sensory or mental abilities; lack of experience, knowledge or skills
unless they are supervised by a person responsible for their safety. Children should never
be left alone with this product.
Unpacking (Fig. A, G)
1. Open the box and lift the saw out by the con venient carrying handle
Figure G.
2. Place the saw on a smooth, flat surface.
3. Release the rail lock knob 24 , and push the saw head back to lock it in the rear position.
4. Press down lightly on the operating handle
5. Gently release the downward pressure and hold the operating handle, allowing it to rise
to its full height.
ASSEMBLY

WARNING: To reduce the risk of serious personal injury, turn tool off and remove
the battery packs or power supply before transporting, making any adjustments,
cleaning, repairing, or removing/installing attachments or accessories. An
accidental start-up can cause injury.

WARNING: Use only D WALT battery packs, corded power supply and chargers.
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Bench Mounting (Fig. A, Z)
Holes 7 are provided in all four feet to facilitate bench mounting. Two different-sized holes
are provided to accommodate different sizes of screws or bolts. Use either hole; it is not
necessary to use both.
Always mount your saw firmly to a stable surface to prevent movement. To enhance the tool's
portability, it can be mounted to a piece of 12.7 mm or thicker plywood which can then be
clamped to your work support or moved to other job sites and reclamped.
nOTE: If you elect to mount your saw to a piece of plywood, make sure that the mounting
screws or bolts don't protrude from the bottom of the wood. The plywood must sit flush on
the work support. When clamping the saw to any work surface, clamp only on the clamping
bosses where the mounting screw holes are located. Clamping at any other point will interfere
with the proper operation of the saw.

CAUTION: To prevent binding and inaccuracy, be sure the mounting surface is not
warped or otherwise uneven. If the saw rocks on the surface, place a thin piece of material
under one saw foot until the saw sits firmly on the mounting surface.
Installing and Removing the Battery Packs from the Tool (Fig. C1)
nOTE: For best results, make sure your battery packs are fully charged.
To install the battery packs 22 into the tool, align the battery packs with the rails on the side
of the motor housing and slide them in until they are firmly seated in the tool and ensure that
they do not disengage. Insert the dust cover
in between the batteries.
NOTICE: Keep the dust cover in place whenever the corded power supply is not
in use.
To remove the battery packs from the tool, press the battery release button
pull the battery packs out. Insert them into the charger as described in the charger section of
this manual.
Fuel Gauge Battery Packs (Fig. C2)
Some D WALT battery packs include a fuel gauge which consists of three green LED lights that
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indicate the level of charge remaining in the battery pack.
To actuate the fuel gauge, press and hold the fuel gauge button. A combination of the three
green LED lights will illuminate designating the level of charge left. When the level of charge
in the battery is below the usable limit, the fuel gauge will not illuminate and the battery will
need to be recharged.
nOTE: The fuel gauge is only an indication of the charge left on the battery pack. It does
not indicate tool functionality and is subject to variation based on product components,
temperature and end-user application.
Installing and Removing the Corded Power Supply into and from
Tool (Fig. D–F)
Before inserting the corded power supply into your tool, remove the end of the dust cover
from the tool's corded power supply receptacle
corded power supply receptacle so that it does not interfere with insertion of the corded
power supply. Inspect the corded power supply receptacle for debris. Debris inside the
receptacle can prevent the corded power supply from fully seating. If debris is present, clean it
using low pressure air. Refer to Cleaning the Corded Power Supply Receptacle.
NOTICE: The corded power supply is for AC power sources only when used with this tool.
Use with DC power sources could result in damage to the tool.
To install the corded power supply into your tool:
1. With the corded power supply unplugged, align its AC connector with the tool's corded
power supply receptacle 37 then snap into place.
2. Ensure that it is fully seated in the tool and does not disengage.
3. Attach the dust cover 39 to the dust cover holder (
4. Secure the cord clip 41 into the tool's cord clip holder (
into the holder.
EnGLISH
, as shown in
4
3 and pull out the lock down pin 19 .
into the corded power supply receptacle
39
32 and firmly
37 . Pull the dust cover away from the tool's
40 , Fig. E) in the corded power supply.
42 , Fig. F). Firmly press the clip
37
39
35