DiamaPro Systems HGX-7 User manual

HGX-7
7” Angle Grinder
INSTRUCTION MANUAL
READ BEFORE OPERATING
www.DiamaProSystems.com
470-977-2323

ASSEMBLY VIEW PARTS LIST
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Part No.
HGX700152
HGX700153
HGX700154
HGX700155
HGX700156
HGX700157
HGX700158
HGX700159
HGX700160
HGX700161
HGX700162
HGX700163
HGX700164
HGX700165
HGX700166
HGX700167
HGX700168
HGX700169
HGX700170
HGX700171
HGX700172
HGX700173
HGX700174
HGX700175
HGX700176
HGX700177
HGX700178
HGX700179
HGX700180
HGX700181
HGX700182
HGX700183
HGX700184
HGX700185
HGX700186
HGX700187
HGX700188
HGX700189
HGX700190
HGX700191
HGX700192
HGX700193
HGX700194
HGX700195
HGX700196
HGX700197
HGX700198
HGX700199
HGX700200
HGX700201
HGX700202
HGX700203
HGX700204
HGX700205
Description
Outer Flange
Grinding Wheel
Inner Flange
Wheel Cover
Screw, M8x25
Spindle
Key 4X16
Anti-dust Cover
Screw, M5X16
Spring Washer, 5
Flat Washer, 5
Bearing Box
Papery Washer
Bearing, 6203-2RS
Bearing Clamp
Spring Washer 4
Screw, M4X12
Big Gear
Retainer 17
Bearing 609-2Z
Side Handle
Gear Box
Screw, ST4.8X35F
Lock Pin
Spring
Wire Spring 10
Hex Nut M8
Small Gear
Bearing 6301-2RZ
Bearing Clamp
Armature Assembly
Insulation Washer
Bearing 6000-2Z
Bearing Sleeve
Screw ST4.8X75
Wind Ba󰀪e
Stator Assembly
Right Brush Cap
Right Brand
Motor Housing
Left Brand
Screw, ST4.2X12
Left Brush Cap
Carbon Brush
Brush Holder Set.
Left Handle
Capacitor (0.33uf)
Switch
Screw ST4.2X16
Right Handle
Cord Clamp
Cord Guard
Plug
Spanner
Qty.
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4
4
4
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1
1
1
7
7
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1
1
1
1
4
1
1
1
1
1
1
1
1
1
1
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1

12. Remove adjusting keys or
wrenches before turning the tool
on. A wrench or a key that is left at-
tached to a rotating part of the tool
may result in personal injury.
13. Do not overreach. Keep proper
footing and balance at all times.
Proper footing and balance enables
better control of the tool in unex-
pected situations.
14. Use safety equipment. Always
wear eye protection. Dust mask,
non-skid safety shoes, hard hat,
and hearing protection must be
used for appropriate conditions.
Ordinary eye or sun glasses are
NOT eye protection.
TOOL USE AND CARE
15. Use clamps or other practical
ways to secure and support the
workplace to a stable platform.
Holding the workpiece by hand or
against your body is unstable and
may lead to loss of control.
16. Do not force tool. Use the cor-
rect tool for your application. The
correct tool will do the job better
and safer at the rate for which it is
designed.
17. Do not use tool if switch does
not turn it on or o󰀨. Any tool that
cannot be controlled with the switch
is dangerous and must be repaired.
18. Disconnect the plug from the
power source before making any
adjustments, changing acces-
sories, or storing the tool. Such
preventative safety measures
reduce the risk of starting the tool
accidentally.
19. Store idle tools out of the reach
of children and other untrained
persons. Tools are dangerous in
the hands of untrained users.
20. Maintain tools with care. Keep
cutting tools sharp and clean.
Properly maintained tools with
sharp cutting edges are less likely
to bind and are easier to control.
21. Check for misalignment or bind-
ing of moving parts, breakage of
parts, and any other condition
that may a󰀨ect the tool’s opera-
tion. If damaged, have the tool ser-
viced before using. Many accidents
are caused by poorly maintained
tools.
22. Use only proper 7” DiamaPro
Systems tools with this model.
Accessories that may be suitable
for one tool, may become hazard-
ous when used on another tool.
23. Tool service must be performed
only by qualied repair person-
nel. Service or maintenance per-
formed by unqualied personnel
could result in a risk of injury.
24. When servicing a tool, use only
identical replacement parts.
Follow instructions in the Mainte-
nance section of the manual. Use
of unauthorized parts or failure to
follow maintenance instructions
may create a risk of electric shock
or injury.
25. Always use with a DiamaPro
Systems dust shroud.
26. Failure to follow proper use guide-
lines will result in void of
warranty.
GENERAL SAFETY TOOLS
(For All Tools)
WARNING: Read and understand all instructions. Failure to follow
all instructions listed below may result in electric shock, re and/or
serious personal injury.
Warning: The body of the machine may get warm after extended
use. If this occurs, turn o󰀨 the machine and let it cool down to
avoid risk of damaging the unit, or personal injury.
SAVE THESE INSTRUCTIONS
WORK AREA
1. Keep your work area clean and
well lit. Cluttered benches and dark
areas invite accidents.
2. Do not operate power tools in
explosive atmospheres, such as
in the presence of ammable liq-
uids, gases or dust. Power tools
create sparks which may ignite the
dust or fumes.
3. Keep bystanders, children, and
visitors away while operating a
power tool. Distractions can cause
you to lose control.
ELECTRICAL SAFETY
4. Power tool plugs must match
the outlet. Never modify the
plugs in any way. Do not use any
adapter plugs with grounded
power tools. Unmodied plugs
and matching outlets will reduce
risk of electric shock. Do not
change the plug in any way. Dou-
ble insulation eliminates the need
for the three wire grounded power
cord and grounded power supply
system.
5. Avoid body contact with ground-
ed surfaces such as pipes, radi-
ators, ranges and refrigerators.
There is an increased risk of elec-
tric shock if your body is grounded.
6. Do not expose power tools to rain
or wet conditions. Water entering
a power tool will increase the risk of
electric shock.
7. Do not abuse the cord. Never use
the cord to carry the tool or pull
the plug from an outlet. Keep
cord away from heat, oil, sharp
edges or moving parts. Replace
damaged cords immediately.
Damaged cords increase the risk of
electric shock.
8. When operating a power tool
outside, use an outdoor exten-
sion cord marked “W-A” or “W.”
These cords are rated for outdoor
use and reduce the risk of electric
shock.
PERSONAL SAFETY
9. Stay alert, watch what you are
doing and use common sense
when operating a power tool. Do
not use tool while 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.
10. Dress properly. Do not wear
loose clothing or jewelry. Con-
tain long hair. Keep your hair,
clothing, and gloves away from
moving parts. Loose clothes, jew-
elry, or long hair can be caught in
moving parts.
11. Avoid accidental starting. Be
sure switch is o󰀨 before plug-
ging in. Carrying tools with your
nger on the switch or plugging in
tools that have the switch on invites
accidents.

SPECIFIC SAFETY RULES
1. Always use a DiamaPro Systems
dust shroud. Shrouds protect opera-
tor from broken wheel fragments.
2. Accessories must be rated for at
least the speed recommended on
the tool warning label. Wheels and
other accessories running over rated
speed can y apart and cause injury.
3. Do not let the tool come in con-
tact with live wire. Contact with a
“live” wire will make exposed metal
parts of the tool “live” and shock the
operator.
4. Always use safety glasses or gog-
gles. Ordinary eye or sun glasses
are NOT safety glasses.
5. Check the wheel carefully for
cracks or damages before opera-
tion. Replace cracked or damaged
wheel immediately. Run the tool (with
guard) at no load for about a minute,
holding tool away from others. If
wheel is awed, it will likely separate
during this test.
6. Only use with DiamaPro Systems
7” cupwheels and abrasives.
7. Be careful not to damage the
spindle, the ange (especially the
installing surface) or the outer
ange. Damage to these parts could
result in wheel breakage.
8. NEVER use tool with wood cutting
blades or other saw blades. Such
blades when used on a grinder fre-
quently kick and cause loss of control
leading to personal injury.
9. Hold the tool rmly.
10. Keep hands away from rotating
parts.
11. Make sure cord is clear of wheel.
Do not wrap cord around your arm
or wrist. If control of tool is lost, cord
may become wrapped around you
and cause personal injury.
12. Make sure the wheel is not con-
tacting the workpiece before the
switch is turned on.
13. Before using the tool on an
actual workpiece, let it run for
a while. Watch for vibration or
wobbling that could indicate poor
installation or a poorly balanced
wheel.
14. Use the specied surface of the
wheel to perform the grinding.
15. Watch out for ying sparks. Hold
the tool so that sparks y away from
you and other persons or amma-
ble materials.
16. Do not leave the tool running.
Operate the tool only when hand-
held.
17. Do not touch the workpiece im-
mediately after operation; it may
be extremely hot and could burn
your skin.
18. ALWAYS wear proper apparel
including long sleeve shirts.
Leather gloves and shop aprons
to protect skin from contact with
hot grindings.
19. Use of this tool to grind or
sand some products. Paints and
wood could expose user to dust
containing hazardous substanc-
es. Use appropriate respiratory
protection.
20. Must use with DiamaPro Hepa
Filtered Dust Collector
DO NOT let comfort or familiarity with product (gained from repeated use)
replace strict adherence to grinder safety rules. If you use this tool unsafely or
incorrectly, you can su󰀨er serious personal injury.
SAVE THESE INSTRUCTIONS
WARNING: MISUSE or failure to follow the safety rules stated in this
instruction manual may cause serious personal injury.
nMaintenance & Daily Care.
CAUTION:
Always be sure that the tool is
switched o󰀨 and unplugged before at-
tempting to perform inspection and
maintenance.
1. The tool and its air vents have to
be kept clean. Regularly clean the
tool’s air vents, or whenever the
vents start to become obstructed.
2. Make sure all screws are properly
tightened.
3. Regularly check if the cord insula-
tion is broken.
n E󰀨ective and safe grinding &
sanding operation.
• Always hold the tool rmly with
one hand on housing and the
other on the side handle. Turn the
tool on and then apply the wheel
or disc to the workpiece.
• Operating the tool while removing
the wheel guard is forbidden.
1. Do not place too much pressure on
the tool. Excessive strength could
damage the tool engine and abra-
sive wheel due to overload.
nReplacing carbon brushes.
1. Remove and check the carbon
brushes regularly. Replace when
the tool sparks or wears down with
5-7mm left.
2. Both carbon brushes should be re-
placed at the same time. Use only
DiamaPro Systems brushes.
3. Please send this tool to DiamaPro
Systems’ authorized service center
to replace or be repaired by an
experienced technician.
CAUTION:
Be sure to reinstall the knob after
inserting new carbon brush.
After replacing brushes, plug in the
tool and break in brushes by running
tool with no load for ~10min. If the
tool is not working well, ask your local
DiamaPro Systems service center for
repair.
To maintain product SAFETY &
RELIABILITY, repairs and other
maintenance or adjustment should
be performed by DiamaPro Systems
Authorized or Factory service cen-
ters, always using DiamaPro Systems
replacement parts.

FUNCTIONAL DESCRIPTION
nOperation Instructions:
 Wheel Guard
Aim the convex end of the wheel
guard to the slot mouth of the
front cover, and then rotate the
guard body to 180°, finally tighten
the fastening screw (Fig1 & Fig2).
 Installing or removing grinding
wheel
CAUTION:
• When using an abrasive cut-o󰀨
wheel, be sure to use only the sup-
plied wheel guard, inner ange,
and outer ange designed for use
with cut-o󰀨 wheels.
1. Mount the inner ange onto the
spindle. Fit the wheel/disc on the
inner ange and screw the outer
ange onto the spindle (Fig 3).
2. To tighten the outer ange, press
the shaft lock rmly so that the
spindle cannot revolve, then use
the lock nut wrench and securely
tighten clockwise (Fig 4).
3. To remove the wheel, follow the
installation procedure in reverse.
 NOTICE:
The groove of INNER FLANGE
must align the atness of spindle
when you install the wheel and
tighten enough.
 Side grip (Fig 5).
CAUTION:
Always be sure that the side grip is
installed securely before operation.
Screw the side grip securely on
the position of the tool as shown in
Fig5.
Hold the side grip rmly by hand to
better control the tool.
 Switch Action (Fig 6).
CAUTION:
• Before plugging in the tool, always
check to see that the switch trigger
actuates properly and returns to
the “OFF” position when released.
• Switch cannot be locked in “ON”
position for safety of operator
during use. Apply caution when
using tool and maintain rm grasp
on tool.
Fig6