Makita Grinder 9526PBH User Manual

Angle Grinder  
100 mm (4”)  
MODEL 9526PBH  
115 mm (4-1/2”)  
MODEL 9527PB  
125 mm (5”)  
MODEL 9528PB  
DOUBLE  
INSULATION  
I N S T R U C T I O N M A N U A L  
WARNING:  
For your personal safety, READ and UNDERSTAND before using.  
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.  
 
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.  
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.  
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.  
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.  
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.  
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.  
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.  
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.  
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.  
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.  
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.  
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.  
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.  
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.  
14. Use safety equipment. Always wear eye  
protection. Dust mask, non-skid safety  
shoes, hard hat, or hearing protection must  
3
 
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.  
Table 1: Minimum gage for cord  
Volts  
120 V  
Total length of cord in feet  
Ampere Rating  
25 ft.  
50 ft.  
100 ft.  
150 ft.  
More Than  
Not More Than  
AWG  
0
6
10  
12  
6
18  
18  
16  
14  
16  
16  
16  
12  
16  
14  
14  
14  
12  
12  
10  
12  
16  
Not Recommended  
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.  
4. When using depressed center grinding  
wheels, be sure to use only fiberglass-  
reinforced wheels.  
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.  
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  
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 livewire will  
make exposed metal parts of the tool live”  
and shock the operator.  
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.  
4
 
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.  
poor installation or a poorly balanced  
wheel.  
15. Use the specified surface of the wheel to  
perform the grinding.  
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.  
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.  
10. Hold the tool firmly.  
18. Do not touch the workpiece immediately  
after operation; it may be extremely hot  
and could burn your skin.  
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.  
19. ALWAYS wear proper apparel including  
long sleeve shirts, leather gloves and  
shop aprons to protect skin from contact  
with hot grindings.  
13. Make sure the wheel is not contacting the  
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.  
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  
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  
....................no load speed  
n
˚
A .......................amperes  
....................Class II Construction  
Hz .....................hertz  
.../min................revolutions or reciprocation per  
minute  
................alternating current  
5
 
FUNCTIONAL  
DESCRIPTION  
CAUTION:  
Always be sure that the tool is switched off and  
unplugged before adjusting or checking function on the  
tool.  
001021  
Shaft lock  
CAUTION:  
1
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.  
1. Shaft lock  
001034  
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 ONposition for ease of  
operator comfort during extended use. Apply caution  
when locking tool in ONposition and maintain firm  
grasp on tool.  
1
2
3
1. Lock-off button  
2. Switch trigger  
3. Lock-on button  
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.  
6
 
001051  
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.  
001656  
Installing or removing wheel guard  
CAUTION:  
9526PBH  
1
2
3
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.  
1. Wheel guard  
2. Bearing box  
3. Screw  
001657  
To remove wheel guard, follow the installation procedure in  
reverse.  
9527PB, 9528PB  
1
2
3
1. Wheel guard  
2. Bearing box  
3. Screw  
001070  
Installing or removing depressed center grinding  
wheel/Multi-disc  
1
2
WARNING:  
3
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.  
1. Lock nut  
Mount the inner flange onto the spindle. Fit the wheel/disc on  
the inner flange and screw the lock nut onto the spindle.  
2. Depressed center grinding wheel/  
Multi-disc  
3. Inner flange  
7
 
001083  
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.  
1
To remove the wheel, follow the installation procedure in  
reverse.  
2
1. Lock nut wrench  
2. Shaft lock  
001095  
Installing or removing flex wheel  
(optional accessory)  
1
2
3
4
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.  
1. Lock nut  
2. Flex wheel  
3. Plastic pad  
4. Inner flange  
001106  
Installing or removing abrasive disc  
(optional accessory)  
1
2
NOTE:  
3
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.  
1. Lock nut  
2. Abrasive disc  
3. Rubber pad  
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.  
8
 
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.  
001120  
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.  
15  
A
B
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.  
001135  
Operation with wire cup brush  
(optional accessory)  
1
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.  
1. Wire cup brush  
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.  
9
 
001228  
Operation with wire wheel brush  
(optional accessory)  
1
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.  
1. Wire wheel brush  
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.  
001116  
Operation with abrasive cut-off wheel  
(optional accessory)  
1
2
WARNING:  
3
4
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.  
1. Lock nut  
2. Abrasive cut-off wheel  
3. Inner flange  
4. Wheel guard for cut-off wheel  
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.  
10  
 
MAINTENANCE  
CAUTION:  
001161  
Always be sure that the tool is switched off and  
unplugged before attempting to perform inspection or  
maintenance.  
1
The tool and its air vents have to be kept clean. Regularly  
clean the tools air vents or whenever the vents start to  
become obstructed.  
2
1. Exhaust vent  
2. Inhalation vent  
001145  
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.  
1
1. Limit mark  
001148  
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.  
2
1
1. Brush holder cap  
2. Screwdriver  
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  
11  
 
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.  
001179  
1
2
2
8
2
12  
13  
3
4
3
6
9
11  
3
10  
14  
5
7
5
5
9526PBH  
9527PB  
Grip 36  
9528PB  
1
2
Wheel guard  
Inner flange 45  
3
Inner flange 35  
Inner flange 45  
4
Depressed center grinding wheel/Multi-disc  
5
Lock nut 10-35  
Plastic pad  
Lock nut 5/8-45  
N/A  
Lock nut 5/8-45  
N/A  
6
7
Flex wheel  
N/A  
N/A  
8
Rubber pad 76  
Rubber pad 100  
Abrasive disc  
Rubber pad 115  
9
10  
11  
12  
13  
14  
-
Sanding lock nut 10-30  
Lock nut wrench 20  
Sanding lock nut 5/8-48  
Wire wheel brush  
Sanding lock nut 5/8-48  
Lock nut wrench 28  
Wire cup brush  
Wheel guard (For cut-off wheel)  
Cut-off wheel  
Lock nut wrench 28  
12  
 
Memo  
13  
 
Memo  
14  
 
Memo  
15  
 
MAKITA LIMITED ONE YEAR WARRANTY  
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 Makitas 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.  
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.  
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  
MERCHANTABILITYAND 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 Manufacturing Europe Ltd  
Hortonwood 7 Telford, Shropshire, TF1 7YX, England  
884047A238  
 

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