Makita HR2511 User manual

Rotary Hammer
Capacities
Wood Steel Concrete
30" 13 mm 25 mm
(1-3116") (112") (1")
25 mm (1") MODEL HR2511
Variable Speed
Net
weight
335
mm 4.2 kg
~~owsper
min. Overs"
(RPM) length
No load speed
~ 3,000 (13-3116") (9.2 lbsl
0 - 800
INSTRUCTION MANUAL
SPECIFICATIONS
* Manufacturer reserves the right to change specifications without notice.
* Note: Specifications may differ from country to country.

IMPORTANT
SAFETY I NSTRU CTI 0 NS
(For All Tools)
WARNING: WHEN USING ELECTRICTOOLS, BASICSAFETY
PRECAUTIONSSHOULD ALWAYS
BE FOLLOWEDTO REDUCE
THE RISK
OF FIRE, ELECTRIC SHOCK, AND PERSONAL
INJURY, INCLUDING THE FOLLOWING:
READ ALL INSTRUCTIONS.
1. KEEP WORK AREA CLEAN. Cluttered areas and benches invite injuries.
2. CONSIDER WORK AREA ENVIRONMENT. Don't use power tools in damp
or wet locations. Keep work area well
lit. Don't expose power tools to rain.
Don't use tool
in presence of flammable liquids or gases.
3. KEEP CHILDREN AWAY. All visitors should be kept away from work area.
Don't let visitors contact tool
or extension cord.
4. STORE IDLETOOLS. When not in use, tools should be stored in dry, and high
or locked-up place
- out of reach of children.
5. DON'T FORCETOOL. It will dothejob better and safer at the ratefor which
it was intended.
6. USE RIGHT TOOL. Don't force small tool or attachment to do thejob of a
heavy-dutytool. Don't usetool for purpose notintended; for example, don't
use circular saw for cutting tree limbs or logs.
7. DRESS PROPERLY. Don't wear loose clothing or jewelry. They can becaught
in moving parts. Rubber gloves and non-skid footwear are recommended
when working outdoors. Wear protective hair covering to contain long hair.
8. USE SAFETY GLASSES. Also use face or dust mask if cutting operation is
dusty.
9. DON'T ABUSE CORD. Never carry tool by cordor yank it todisconnect from
receptacle. Keep cord from heat, oil, and sharp edges.
IO. SECURE WORK. Use clamps or a vise to hold work. It's safer than using
your hand and
it frees both hands to operate tool.
11. DON'T OVERREACH. Keep proper footing and balance at all times.
12. MAINTAIN TOOLS WITH CARE. Keep tools sharp and clean for better and
safer performance. Follow instructions for lubricating and changing acces-
sories. Inspect tool cords periodically and if damaged, have repaired by
authorized service facility. Inspect extension cords periodically and replace
if damaged. Keep handles dry, clean,
and free from oil and grease.
13. DISCONNECTTOOLS. When not in use, before servicing, and when changing
accessories, such as blades, bits, cutters.
2

14. REMOVE ADJUSTING KEYS AND WRENCHES. Form habit of checking to
see that keys and adjusting wrenches are removed from tool before turning
it on.
15. AVOID UNINTENTIONALSTARTING. Don't carry toolwithfinger onswitch.
Be sure switch is OFF when plugging in.
16. EXTENSION CORDS. 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 SETS
~~ ~
0- 6
6
~ 10
10
- 12
12
- 16
Total Length of Cord in Feet
0-25 I 26 - 50 I 51 - 100 I 101 - 150
18 16 14
16 16 14 12
14 12
Not Recommended
18 16 ;: 1 12
Ampere Rating
More Not More
Than Than
AWG
3

VOLTAGE WARNING: Before connecting the tooltoa power source (receptacle,
outlet, etc.) be sure the voltage supplied is the same as that specified on the
nameplate of the tool. A power source with voltage greater than that specified
for the tool can result
in SERIOUS INJURY to the user - as well as damage to
the tool.
If in doubt, DO NOT PLUG IN THE TOOL. Using a power source with
voltage less than the nameplate rating is harmful to the motor.
For all grounded tools with American type plug.
GROUNDING INSTRUCTIONS: This tool should be grounded while in use to
protect the operator from electric shock. The tool is equipped
with a three-
conductor cord and three-prong grounding-type plug to fit the proper
grounding-type receptacle. The green (or green and yellow) conductor
in the
cord is the grounding wire. Never connect the green(or greenand yellow) wire
toa live terminal. Your
unit is for use on 115 volts and has a plug that looks
like Fig.
"A'.
An adapter Fig. "B" and "C" is available for connecting Fig. "A' type plugs
totwo-prongreceptacles. The green-colored rigidear, lug, etc., extending from
the adapter must be connected to a permanent ground, such as a properly
grounded outlet box.
FIG. A FIG. B FIG. C
Adapter
I
Grounding Blade Cover of Grounded Outlet Box
4

ADDITIONAL SAFETY RULES
1. Wear a hard hat (safetyhelmet), safety glasses and/or face shield. It is also
highly recommended that you wear a dust mask, ear protectors and thickly
padded gloves.
2. Be sure the bit is secured in place before operation.
3. Under normaloperation, the tool is designedto producevibration. The screws
can come loose easily, causing a breakdown or accident. Check tightness
of screws carefully before operation.
4. Incold weather or when the tool has not been used for a long time, let the
tool warm upfor several minutes by operating
it under noload. This will loos-
en up the lubrication. Without proper warm-up, hammering operation is
difficult.
Be sure no one
is below when using the tool in high locations.
5. Always be sure you have a firm footing.
6. Hold the tool firmly with both hands.
7. Keep hands away from moving parts.
8. Do not leave the tool running. Operate the tool only when hand-held.
9. Do not point the tool at any one inthe area when operating. The bit could
fly out and injure someone seriously.
IO. When drilling or chipping intowalls, floors or wherever "live" electrical wires
may be encountered,
DO NOT TOUCH ANY METAL PARTS OF THE TOOL!
Hold the tool by the insulated grasping surfaces to prevent electric shock
if you drill or chip into a "live" wire.
11. Do not touch the bit or parts close to the bit immediately after operation;
they may be extremely hot and could burn your skin.
SAVE THESE INSTRUCTIONS.
5

Bitgrease
Coat the bit shank head beforehand with
a small amount (about0.5- 1 g; 0.02-0.04 oz.)
of bit grease. This chuck lubrication assures smooth action and longer service life.
Installingor removingdrill bit
CAUTION:
Always be sure that the tool
is switched off and unplugged before installing or removing
the bit.
To install the bit, press the change ring in
the direction
of the arrow, align the key
groove on the bit shank with the red dot
and insert the bit. Now release the change
ring. If the change ring does not return to
its original position easily, turn the bit
slightly ineither direction.
To remove the bit, press the change ring in
the direction of the arrow and the bit will
slip out.
I
I 1
Adjustingdepth of drilling
Loosen the wing bolt and adjust the depth
gauge to the desired depth. After adjusting,
tighten the wing bolt.
6

Side grip (auxiliary handle)
The side grip swings around to either side,
allowing easy handling
of the tool in any
position. Loosen the side grip by turning
it
counterclockwise, swing it to the desired
position and then tighten
it by turning
clockwise.
Selectingaction mode
Rotationwith hammering:
For drilling in concrete, granite,
tile, etc.,
rotate the change lever to the posi-
tion.
Rotation only:
For drilling in wood or metal, rotate
change lever to the
-3- position. the
lever
-
CAUTION :
To avoid rapid wear on the mode change mechanism, be sure that the change lever is
always positively located in one of the two action mode positions.
7

Switch action
Too speed is increased by increasing pres-
sure on the trigger.
To start the tool, simply
pull the trigger.
Release the trigger to stop.
A speed control screw
is provided so that
maximum tool speed can be limited (vari-
able). Turn the speed control screw clock-
wise for higher speed, and counterclock-
wise for lower speed.
Speed control screw
I
CAUTION :
Before pluggingin the tool, always check to see that the trigger switch actuates properly
0 Do not tape, tie or otherwise secure the trigger in the "ON" position.
and returns tothe
"OFF" position when released.
Hammer drillingoperation
Position the bit at the location for the
hole, then pullthe trigger.
Do not force the tool. Light pressure gives
best results. Keep the tool in position and
prevent
it from slipping away from the
hole.
Do not apply more pressurewhen the hole
becomes clogged with chips or particles.
Instead, run the tool
at an idle, then re-
move from the hole.
By repeating this
several times, the holewill be cleanedout.
8

Driving in anchor manually
The drill bit has a red marking at a point
corresponding to the anchor length.
So
drill to that depth.
Use the blow-out bulb
to clean out the
hole.
Put
a plug on the anchor and hammer it
into the concrete.
setting tool
hor setting rod)
Screw in a bolt to fasten equipment.
Bolt
9

Dustcollector
Use the dust collector for safe, sanitary
overhead operations. Install the bit, then
attach the dust collector on the end by
turning and applying pressure.Then secure
it by turning the metal retainerclockwise.
CAUTION
:
Empty the dust collector of its contents
after drilling every
2 or 3 holes.
Metal retainer
Drillingin wood or metal
Set the change lever for "rotation only."
Use the optional drill chuck and chuck
adapter for drilling up to
13 mm (1/2") in
metal and up to
30 mm (1-3/16") inwood.
To installthe drillchuck and chuck adapter,
refer to "installing or removingdrill bit".
I
1
Drill holder
I
Drill chuck
CAUTION :
When the drill chuck is installed on this tool, do not use "rotation with hammering"
action.The drill chuck and chuck adapter may be damaged.
Core bit(optionalaccessory)
Screw the core bit on the adapter. Install
the core bit and adapter on the tool inthe
same manner
as a drill bit.
10

Installthe center bit.
I
Center bit
Rest the core bit on the concreteand turn
the
tool on. Once the core bit has cut a
shallow groove into the concrete, remove
the center bit.Then resumedrilling.
To remove the core bit, hold the adapter
with the wrench, insert the rod into the
hole in the core bitand tap with
a hammer
to unscrew.
11

MA1NTENANCE
CAUTION :
Always be sure that the tool is switched off and unpluggedbefore attempting to perform
inspectionor maintenance.
Replacingcarbon brushes
When the resin insulating tip inside the
carbon brush
is exposed to contact the
commutator,
it will automatically shut off
the motor.
When this occurs, both carbon brushes
should be replaced
at the same time. Use
only identical carbon brushes.
Insulating tip
77
\ Carbon brush
J
Use a screwdriver to remove the brush
holder caps. Take out the worn carbon
brushes, insert the newones and secure the
brush holder caps.
12

Lubrication
This tool requires no hourly or daily lubricationbecause
it has a grease-packedlubrication
system.
It should be relubricated after every 6 months of operation. Send the complete
tool to Makita Authorized or Factory Service Center for this lubricationservice.
However, if circumstances require that you should lubricate
it by yourself, proceed as
follows.
Run the tool for several minutes to warm
it up. Switch off and unplugthe tool. Remove
the crank cap using
a Makita lock nut wrench 35 (optionalaccessory). Rest the tool on
the table with the bit end pointing upwards. This will allow the old grease to collect
inside the crank housing. Wipe out the
old grease inside and replace with a fresh grease
(30 g; 1 02). Use only Makita genuine grease (optionalaccessory). Fillingwith more than
the specified amount of grease (approx.
30 g; 1 02) can cause faulty hammeringaction or
tool failure. Fill only with the specified amount of grease. Reinstall the crank cap and
tighten with the lock nut wrench.
Do not tighten the crank cap excessively. It is made of
resinand
is subjectto breakage.
Sharpening tungsten-carbidetipbit
When your bit becomes dull, use an ordinary benchgrinder with
a wheel made of silicon
carbideto resharpen
it.
CAUTION :
0 Be sure to maintain the original angles of the tip. Especiallywithout 60" chamfering,
0 Do not quench the bit inwater or oil.
0 Do not grind the sides Band C.
the tungsten-carbide
tip may be damaged.
05-k
A - A' Cross section
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.
13

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.
The accessoriesor attachments should
be used only inthe proper and intended manner.
0 Tungsten-carbide tip bits Blow-out bulb
Part No.765009-6
Part
NO. I Diameter I Overall length
0 Hex wrench 5
Part No. 783203-8
0 Lock nut wrench 35
Part No.782407-9
0 Hammer grease 30 g; 102.
Part No. 181490-7
0 Drill chuck SI3
Part No.763055-3
0Bitgrease 1OOg;3.5oZ.
Part No. 181573-3
0 Chuck adapter
Part No.321637-3
0 Chuck key SI3
Part No.763411-7
0 Dustcollector assembly
Part No. 122360-1
0 Steel carrying case
Part No. 181798-9
' -- li
a
-_
14

oct -08-'91 us
25 mm (1")
ROTARY HAMMER
Model HR2511
Note:The switch and other part configurations
may differ from country
to country.
15

oct -08-'91 us
MODEL HR2511
'LiM AtD DESCRIPTION 'LiM ,& DESCRIPTION
MACHINE *E
2 4
Hex Socket Head Bolt M6x25 lWtth Washer1
4 1 Ball Bearing 3009
5 2 Roller 6 5
6 1 Nut M303-36
7 1
Barrel
8 1 ORing 48
9 1 Needle Bearing 3516
10 1 Flat Washer 35
11 1
Sporal Bevel Gear 33
12 1 Striker
13 1 Key4
14
1 ORing 19
15 1 ORing19
16 1 Piston
18 4 Hex Sockel Head Bolt M6145
19
1 Pin6
21 1 CrsnkCao
22 1 0 Ring 44
23
1 Rod
24 1 Needle Bearing 810
25 1 Crank Shalt
26 2 Steel Bsll 5 6
27 1 Comprsrrion Spr8ng 6
26 1 Change Pln 8
29 1 Clank HOUSlng
30 1 Ball Bearing 6002
31
I nsiecai ear 36
32 1 Flat Washer 15
33 1 Ball Bearing 8902
34
1 ORing 90
35 1 ORing 7
38 1 Change Lever
37 1
Comprssalon SP""B 2
38 1 Steal 8811 4
39 1 Armature
40
1 Woodruff Key 3
41 1 FIELD ASSEMBLY
42 2
Hex Bolt M5x45 [With Washetl
43 1 011 SBBI 13
44 1 Ball Bearing 6200
45
I Gear Housing
46 1 Thin Washer 15
47
1 Ball Bsaring 608
Note The switch and other part ~pec111catlonS may dlfter from Counlry
48 1
49 1
50 1
51 1
52 1
53 1
54
3
55 1
56 1
57
1
58 1
59 3
60 1
61 1
62
1
83 1
84
1
67 1
73 1
74 4
75
1
76 1
77 2
78 2
79 1
80 1
81 1
82 3
83 1
84
3
85 2
88 1
87 1
88
1
89 2
93 1
94 1
95 1
98 2
97
1
98 1
99 1
1w 1
10 country
Torque Limiter
Cap Square Neck Bolt M8135
Grip 32
Grip
88.8
Bell
Cylinder Liner 25
Sfeel Ball 6 4
011 seal 21
Fell
Ring 20
0 Ring 44
Seal Holder
Steel Ball 8 4
Impact Bolt
0 Ring 10
0 Ring 10
Drill Holder
0 Ring 10
Change Ring
Motor Housmg
Rivet 0-5
Name Plate
Label
Carbon Brush
Brush Holder
Cap
Fan 65
Ball Baaring 6OBLB
Bearing Box
Pan Head Screw M5r28 IWllh Washer1
Handle Set [With Item
951
Pan Head Screw M5x25 [With Washer1
Pan Head Screw Max25 [With Washer)
Cord
Card Guard
Stram Relief
Pan Head Screw M4rl8 IWilh Washer)
Switch
Dust Cover
Handle Set [With ltsm 831
Pan Head Screw M6xl8 IWilh Washer]
Wing
Bolt M5x15
Rubber Washer 4 5
Conical Comprssaon Spring 21-25
cap 34
1
MAKKA LIMITED ONE YEARWARRANTY
i
Warranty Policy
~~~&~~d by defective workmanship or material, Makita will rei
4 replace) without charge. I
ThisWarranty does not apply where:
repairs have been made or attempted by others.
repairs are requmd because of normal wear and tear
The tool has been abused, misused or improperly maintamed:
alterationshave been made to the tool.
IN NO EVENT SHALL MAKITA BE LIABLE FOR ANY INDIRECT INCIDkNTAL
OR CON-
APPLIES BOTH DURING AND AFTER THE TERM OFTHIS WARRANTY.
MAKITA DISCLAIMS LIABILITY FOR ANY IMPLIED WARRANTIES INCLUDING IMPLIED
WARRANTIES OF "MERCHANTABILITY" AND "FITNESS
FOR A' SPECIFIC PURPOSE,"
AFTER THE ONE-YEAR TERM OFTHIS WARRANTY.
SEQUENTIAL
DAMAGES FROM THESALE OR USE OF THE PROD~J~. THIS DISCLAIMER
Tlus Warranty glves you specific legal rights and you may also have other nghts whlch vary from
state lo state. Some
states do not allow thk exclusion or limitation of incidental or consequential
damages, so the above limitallon or exclusion may not apply to you. Some States do not allow
limitation on how long an implied warranty lasts, so the above limitation may not apply to YOU.
e i
Makita Corporation
3-11-8, Sumiyoshi-cho,
Anjo, Aichi 446 Japan
883399D068
PRINTED IN JAPAN
1995 -3-N