Makita 9526PBH User manual

INSTRUCTION MANUAL
WARNING:
For your personal safety, READ and UNDERSTAND before using.
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.
Angle Grinder
100 mm (4”)
MODEL 9526PBH
115 mm (4-1/2”)
MODEL 9527PB
125 mm (5”)
MODEL 9528PB
DOUBLE
INSULATION

2
SPECIFICATIONS
• Manufacturer reserves the right to change specifications without notice.
• Specifications may differ from country to country.
GENERAL SAFETY RULES USA002-2
(For All Tools)
WARNING:
Read and understand all instructions. Failure to follow all
instructions listed below, may result in electric shock, fire and/or
serious personal injury.
SAVE THESE INSTRUCTIONS
Work Area
1. Keep your work area clean and well lit.
Cluttered benches and dark areas invite acci-
dents.
2. Do not operate power tools in explosive
atmospheres, such as in the presence of
flammable liquids, 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. Distrac-
tions can cause you to lose control.
Electrical Safety
4. Double insulated tools are equipped with
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 fit
fully in the outlet, reverse the plug. If it
still does not fit, contact a qualified elec-
trician to install a polarized outlet. Do not
change the plug in any way. Double insula-
tion eliminates the need for the three wire
grounded power cord and grounded power
supply system.
Model 9526PBH 9527PB 9528PB
No load speed (RPM) 10,000/min 11,000/min 11,000/min
Overall length 275 mm (10-7/8”) 275 mm (10-7/8”) 275 mm (10-7/8”)
Net weight 1.5 kg (3.3 lbs) 1.5 kg (3.3 lbs) 1.5 kg (3.3 lbs)
Spindle thread M10 x 1.25 5/8” 5/8”

3
5. Avoid body contact with grounded sur-
faces such as pipes, radiators, ranges and
refrigerators. There is an increased risk of
electric 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 tools 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 extension 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 influence 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 cloth-
ing or jewelry. Contain long hair. Keep
your hair, clothing, and gloves away from
moving parts. Loose clothes, jewelry, or long
hair can be caught in moving parts.
11. Avoid accidental starting. Be sure switch
is off before plugging in. Carrying tools with
your finger on the switch or plugging in tools
that have the switch on invites accidents.
12. Remove adjusting keys or wrenches
before turning the tool on. A wrench or a
key that is left attached 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
unexpected situations.
14. Use safety equipment. Always wear eye
protection. Dust mask, non-skid safety
shoes, hard hat, or 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 way to
secure and support the workpiece to a
stable platform. Holding the work by hand or
against your body is unstable and may lead
to loss of control.
16. Do not force tool. Use the correct 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 off. 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 accessories, or storing the tool.
Such preventive safety measures reduce the
risk of starting the tool accidentally.
19. Store idle tools out of 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 binding of
moving parts, breakage of parts, and any
other condition that may affect the tools
operation. If damaged, have the tool serv-
iced before using. Many accidents are
caused by poorly maintained tools.
22. Use only accessories that are recom-
mended by the manufacturer for your
model. Accessories that may be suitable for
one tool, may become hazardous when used
on another tool.
SERVICE
23. Tool service must be performed only by
qualified repair personnel. Service or main-
tenance performed by unqualified personnel
could result in a risk of injury.

4
24. When servicing a tool, use only identical
replacement parts. Follow instructions in
the Maintenance section of this manual.
Use of unauthorized parts or failure to follow
Maintenance instructions may create a risk of
electric shock or injury.
USE PROPER EXTENSION CORD: Make sure your extension cord is in good condition.
When using an extension cord, be sure to use one heavy enough to carry the current your
product will draw. An undersized cord will cause a drop in line voltage resulting in loss of
power and overheating. Table 1 shows the correct size to use depending on cord length and
nameplate ampere rating. If in doubt, use the next heavier gage. The smaller the gage
number, the heavier the cord.
SPECIFIC SAFETY RULES USB005-3
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 suffer serious
personal injury.
1. Always use proper guard with grinding
wheel. A guard protects operator from bro-
ken 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 fly apart and cause
injury.
3. Hold tool by insulated gripping surfaces
when performing an operation where the
cutting tool may contact hidden wiring or
its own cord. Contact with a “live”wire will
make exposed metal parts of the tool “live”
and shock the operator.
4. When using depressed center grinding
wheels, be sure to use only fiberglass-
reinforced wheels.
5. Always use safety glasses or goggles.
Ordinary eye or sun glasses are NOT
safety glasses.
6. Check the wheel carefully for cracks or
damage before operation. 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 flawed, it will likely sep-
arate during this test.
7. Use only flanges specified for this tool.
Table 1: Minimum gage for cord
Ampere Rating Volts Total length of cord in feet
120 V 25 ft. 50 ft. 100 ft. 150 ft.
More Than Not More Than AWG
0 6 18 16 16 14
6 10 18161412
10 12 16 16 14 12
12 16 14 12 Not Recommended

5
8. Be careful not to damage the spindle, the
flange (especially the installing surface)
or the lock nut. Damage to these parts
could result in wheel breakage.
9. NEVER use tool with wood cutting blades
or other sawblades. Such blades when
used on a grinder frequently kick and
cause loss of control leading to personal
injury.
10. Hold the tool firmly.
11. Keep hands away from rotating parts.
12. 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.
13. Make sure the wheel is not contacting the
workpiece before the switch is turned on.
14. Before using the tool on an actual work-
piece, let it run for a while. Watch for
vibration or wobbling that could indicate
poor installation or a poorly balanced
wheel.
15. Use the specified surface of the wheel to
perform the grinding.
16. Watch out for flying sparks. Hold the tool
so that sparks fly away from you and other
persons or flammable materials.
17. Do not leave the tool running. Operate the
tool only when hand-held.
18. Do not touch the workpiece immediately
after operation; it may be extremely hot
and could burn your skin.
19. ALWAYS wear proper apparel including
long sleeve shirts, leather gloves and
shop aprons to protect skin from contact
with hot grindings.
20. Use of this tool to grind or sand some
products, paints and wood could expose
user to dust containing hazardous sub-
stances. Use appropriate respiratory pro-
tection.
SAVE THESE INSTRUCTIONS
WARNING:
MISUSE or failure to follow the safety rules stated in this
instruction manual may cause serious personal injury.
SYMBOLS USD201-2
The followings show the symbols used for tool.
V....................... volts
A....................... amperes
Hz ..................... hertz
................ alternating current
....................no load speed
....................Class II Construction
.../min................revolutions or reciprocation per
minute
n˚

6
FUNCTIONAL
DESCRIPTION CAUTION:
•Always be sure that the tool is switched off and
unplugged before adjusting or checking function on the
tool.
Shaft lock
CAUTION:
•Never actuate the shaft lock when the spindle is moving.
The tool may be damaged.
Press the shaft lock to prevent spindle rotation when install-
ing or removing accessories.
Switch action
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 can be locked in “ON”position for ease of
operator comfort during extended use. Apply caution
when locking tool in “ON”position and maintain firm
grasp on tool.
•Do not pull the trigger forcibly without pushing in the
lock-off button.
To prevent the switch trigger from accidentally pulled, a lock-
off button is provided. To start the tool, push in the lock-off
button and then pull the switch trigger. Release the switch
trigger to stop. For continuous operation, pull the switch trig-
ger and then push in the lock-on button. To stop the tool from
the locked position, pull the switch trigger fully, then release
it.
ASSEMBLY CAUTION:
•Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.
1. Shaft lock
1
001021
1. Lock-off button
2. Switch trigger
3. Lock-on button
21 3
001034

7
Installing side grip (handle)
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 the figure.
Installing or removing wheel guard
CAUTION:
•When using a depressed center grinding wheel/Multi-
disc, flex wheel, wire wheel brush or cut-off wheel, the
wheel guard must be fitted on the tool so that the closed
side of the guard always points toward the operator.
Mount the wheel guard with the protrusion on the wheel
guard band aligned with the notch on the bearing box. Then
rotate the wheel guard around 180 degrees. Be sure to
tighten the screw securely.
To remove wheel guard, follow the installation procedure in
reverse.
Installing or removing depressed center grinding
wheel/Multi-disc
WARNING:
•Always use supplied guard when depressed center
grinding wheel/Multi-disc is on tool. Wheel can shatter
during use and guard helps to reduce chances of
personal injury.
Mount the inner flange onto the spindle. Fit the wheel/disc on
the inner flange and screw the lock nut onto the spindle.
001051
1. Wheel guard
2. Bearing box
3. Screw
1. Wheel guard
2. Bearing box
3. Screw
001656
1
2
3
9526PBH
001657
1
2
3
9527PB, 9528PB
1. Lock nut
2. Depressed center grinding wheel/
Multi-disc
3. Inner flange
1
3
2
001070

8
To tighten the lock nut, press the shaft lock firmly so that the
spindle cannot revolve, then use the lock nut wrench and
securely tighten clockwise.
To remove the wheel, follow the installation procedure in
reverse.
Installing or removing flex wheel
(optional accessory)
WARNING:
•Always use supplied guard when flex wheel is on tool.
Wheel can shatter during use and guard helps to reduce
chances of personal injury.
Follow instructions for depressed center grinding wheel/
Multi-disc but also use plastic pad over wheel. See order of
assembly on accessories page in this manual.
Installing or removing abrasive disc
(optional accessory)
NOTE:
•Use sander accessories specified in this manual. These
must be purchased separately.
Mount the rubber pad onto the spindle. Fit the disc on the
rubber pad and screw the lock nut onto the spindle. To
tighten the lock nut, press the shaft lock firmly so that the
spindle cannot revolve, then use the lock nut wrench and
securely tighten clockwise.
To remove the disc, follow the installation procedure in
reverse.
OPERATION WARNING:
•It should never be necessary to force the tool. The
weight of the tool applies adequate pressure. Forcing
and excessive pressure could cause dangerous wheel
breakage.
•ALWAYS replace wheel if tool is dropped while grinding.
1. Lock nut wrench
2. Shaft lock
1
2
001083
1. Lock nut
2. Flex wheel
3. Plastic pad
4. Inner flange
1
4
3
2
001095
1. Lock nut
2. Abrasive disc
3. Rubber pad
1
3
2
001106

9
•NEVER bang or hit grinding disc or wheel onto work.
•Avoid bouncing and snagging the wheel, especially
when working corners, sharp edges etc. This can cause
loss of control and kickback.
•NEVER use tool with wood cutting blades and other
sawblades. Such blades when used on a grinder
frequently kick and cause loss of control leading to
personal injury.
CAUTION:
•After operation, always switch off the tool and wait until
the wheel has come to a complete stop before putting
the tool down.
Grinding and sanding operation
ALWAYS hold the tool firmly 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.
In general, keep the edge of the wheel or disc at an angle of
about 15 degrees to the workpiece surface.
During the break-in period with a new wheel, do not work the
grinder in the B direction or it will cut into the workpiece.
Once the edge of the wheel has been rounded off by use, the
wheel may be worked in both A and B direction.
Operation with wire cup brush
(optional accessory)
CAUTION:
•Check operation of brush by running tool with no load,
insuring that no one is in front of or in line with brush.
•Do not use brush that is damaged, or which is out of
balance. Use of damaged brush could increase potential
for injury from contact with broken brush wires.
Unplug tool and place it upside down allowing easy access
to spindle. Remove any accessories on spindle. Thread wire
cup brush onto spindle and tighten with supplied wrench.
When using brush, avoid applying too much pressure which
causes over bending of wires, leading to premature break-
age.
15
AB
001120
1. Wire cup brush
1
001135

10
Operation with wire wheel brush
(optional accessory)
CAUTION:
•Check operation of wire wheel brush by running tool with
no load, insuring that no one is in front of or in line with
the wire wheel brush.
•Do not use wire wheel brush that is damaged, or which
is out of balance. Use of damaged wire wheel brush
could increase potential for injury from contact with
broken wires.
•ALWAYS use guard with wire wheel brushes, assuring
diameter of wheel fits inside guard. Wheel can shatter
during use and guard helps to reduce chances of
personal injury.
Unplug tool and place it upside down allowing easy access
to spindle. Remove any accessories on spindle. Thread wire
wheel brush onto spindle and tighten with the wrenches.
When using wire wheel brush, avoid applying too much pres-
sure which causes over bending of wires, leading to prema-
ture breakage.
Operation with abrasive cut-off wheel
(optional accessory)
WARNING:
•When using an abrasive cut-off wheel, be sure to use
only the special wheel guard designed for use with cut-
off wheels.
•NEVER use cut-off wheel for side grinding.
During cutting operations, never change the angle of the
wheel. Placing side pressure on the cut-off wheel (as in
grinding) will cause the wheel to crack and break, causing
serious personal injury.
1. Wire wheel brush
1
001228
1. Lock nut
2. Abrasive cut-off wheel
3. Inner flange
4. Wheel guard for cut-off wheel
001116
1
3
2
4

11
MAINTENANCE CAUTION:
•Always be sure that the tool is switched off and
unplugged before attempting to perform inspection or
maintenance.
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.
Replacing carbon brushes
Remove and check the carbon brushes regularly. Replace
when they wear down to the limit mark. Keep the carbon
brushes clean and free to slip in the holders. Both carbon
brushes should be replaced at the same time. Use only iden-
tical carbon brushes.
Use a screwdriver to remove the brush holder caps. Take out
the worn carbon brushes, insert the new ones and secure
the brush holder caps.
To maintain product SAFETY and RELIABILITY, repairs, any
other maintenance or adjustment should be performed by
Makita Authorized or Factory Service Centers, always using
Makita replacement parts.
ACCESSORIES CAUTION:
•These accessories or attachments are recommended for
use with your Makita tool specified in this manual. The
use of any other accessories or attachments might
present a risk of injury to persons. Only use accessory
or attachment for its stated purpose.
•Your tool is supplied with a guard for use with a
depressed center grinding wheel, multi-disc, flex wheel
and wire wheel brush. A cut-off wheel can also be used
with an optional guard. If you decide to use your Makita
grinder with approved accessories which you purchase
1. Exhaust vent
2. Inhalation vent
2
1
001161
1. Limit mark
1
001145
1. Brush holder cap
2. Screwdriver
1
2
001148

12
from your Makita distributor or factory service center, be
sure to obtain and use all necessary fasteners and
guards as recommended in this manual. Your failure to
do so could result in personal injury to you and others.
If you need any assistance for more details regarding these
accessories, ask your local Makita service center.
9526PBH 9527PB 9528PB
1 Grip 36
2 Wheel guard
3 Inner flange 35 Inner flange 45 Inner flange 45
4 Depressed center grinding wheel/Multi-disc
5 Lock nut 10-35 Lock nut 5/8-45 Lock nut 5/8-45
6 Plastic pad N/A N/A
7 Flex wheel N/A N/A
8 Rubber pad 76 Rubber pad 100 Rubber pad 115
9 Abrasive disc
10 Sanding lock nut 10-30 Sanding lock nut 5/8-48 Sanding lock nut 5/8-48
11 Wire wheel brush
12 Wire cup brush
13 Wheel guard (For cut-off wheel)
14 Cut-off wheel
- Lock nut wrench 20 Lock nut wrench 28 Lock nut wrench 28
2
3
5
22
11
12 13
4 14
5
33
5
6
7
8
9
10
1
001179

Memo
13

Memo
14

Memo
15

Warranty Policy
Every Makita tool is thoroughly inspected and tested before leaving the factory. It is warranted to be free of defects from
workmanship and materials for the period of ONE YEAR from the date of original purchase. Should any trouble develop during
this one year period, return the COMPLETE tool, freight prepaid, to one of Makita’s Factory or Authorized Service Centres.
If inspection shows the trouble is caused by defective workmanship or material, Makita will repair (or at our option, replace)
without charge.
This Warranty does not apply:
•where normal maintenance is required,
•repairs have been made or attempted by others,
•the tool has been abused, misused or improperly maintained,
•alterations have been made to the tool.
“The Makita Warranty is the only and the entire written warranty given by Makita for the Makita tools. No dealer or his agent
or employee is authorized to extend or enlarge upon this warranty by any verbal or written statement or advertisement.”
MAKITA DISCLAIMS LIABILITY FOR ANY IMPLIED WARRANTIES INCLUDING IMPLIED WARRANTIES OF
“MERCHANTABILITY”AND FITNESS FOR A SPECIFIC PURPOSE,”AFTER THE ONE YEAR TERM OF THIS WARRANTY.
“This Warranty gives you specific rights. The provisions contained in this warranty are not intended to limit, modify, take away
from, disclaim or exclude any warranties set forth in any provincial legislation. To the extent required by law, the provisions in
any provincial or federal legislation with respect to warranties take precedence over the provisions in this warranty.”
MAKITA LIMITED ONE YEAR WARRANTY
IN NO EVENT SHALL MAKITA BE LIABLE FOR ANY INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES FROM
THE SALE OR USE OF THE PRODUCT. THIS DISCLAIMER APPLIES BOTH DURING AND AFTER THE TERM OF THIS
WARRANTY.
Makita Manufacturing Europe Ltd
Hortonwood 7 Telford, Shropshire, TF1 7YX, England
884047A238