Ryobi ERH750VN Operation manual

ERH750VN
ROTARY HAMMER DRILL
OWNER'S OPERATING MANUAL
rotary hammer drill
rotary hammer drill
dependability,
trouble free
ROTARY HAMMER DRILL
rotary hammer drill
reliable service.

The purpose of safety rules is to attract your attention to possible
dangers. The safety symbols and the explanations with them,
require your careful attention and understanding. The safety
warnings do not by themselves eliminate any danger. The
instruction or warnings they give are not substitutes for proper
accident prevention measures.
SAFETY ALERT SYMBOL. Indicates caution or
warning. May be used in conjunction with other
symbols or pictures.
WARNING: Failure to obey a safety warning can
result in serious injury to yourself or to others.
Always follow the safety precautions to reduce the
risk of fire, electric shock and personal injury.
WARNING: Do not attempt to operate this tool until
you have read thoroughly and understood
completely, safety rules, etc. contained in this
manual. Failure to comply can result in accidents
involving fire, electric shock or serious personal
injury. Save owners manual and review frequently
for continuing safe operation and instructing others
who may use this tool.
1. KNOW YOUR POWER TOOL. Read owners manual carefully.
Learn its applications and limitations as well as the specific
potential hazards related to this tool.
2. GUARD AGAINST ELECTRICAL SHOCK BY PREVENTING
BODY CONTACT WITH GROUNDED SURFACES. For
example, pipes, radiators, ranges, refrigerator enclosures.
3. KEEP WORK AREA CLEAN. Cluttered areas and benches
invite accidents.
4. AVOID DANGEROUS ENVIRONMENT. Don't use power tools
in damp or wet locations or expose to rain. Keep work area
well lit.
5. KEEP CHILDREN AND VISITORS AWAY. Visitors should
wear safety glasses and be kept a safe distance from work
area. Do not let visitors contact tool or extension cord.
6. STORE IDLE TOOLS. When not in use, tools should be stored
in a dry and high or locked-up place, out of reach of children.
7. DON'T FORCE TOOL. It will do the job better and safer at
the rate at which it was designed.
8. USE RIGHT TOOL. Don't force small tool or attachment to
do the job of a heavy duty tool. Don't use tool for purpose not
intended.
9. DRESS PROPERLY. Do not wear loose clothing or jewellery.
They can be caught in moving parts. Rubber gloves and non-
skid footwear are recommended when working outdoors. Also
wear protective hair covering to contain long hair.
10. ALWAYS WEAR SAFETY GLASSES. Everyday eyeglasses
have only impact resistant lenses, they are not safety glasses.
11. PROTECT YOUR LUNGS. Wear a dust mask if operation is
dusty.
12. PROTECT YOUR HEARING. Wear hearing protection during
extended periods of operation.
13. DON'T OVERREACH. Keep proper footing and balance at
all times. Do not use tool on a ladder or unstable support.
Secure tools when working at elevated levels.
14. MAINTAIN TOOLS WITH CARE. Keep tools sharp and clean
for better and safer performance. Follow instructions for
lubricating and changing accessories.
15. REMOVE ADJUSTING KEYS AND WRENCHES. Form a
habit of checking to see that keys and adjusting wrenches
are removed from tool before turning it on.
16. NEVER USE IN AN EXPLOSIVE ATMOSPHERE. Normal
sparking of the motor could ignite fumes.
17. KEEP HANDLES DRY, CLEAN AND FREE FROM OIL AND
GREASE. Always use a clean cloth when cleaning. Never
use brake fluids, gasoline, petroleum based products, or any
strong solvents to clean your tool.
18. STAY ALERT AND EXERCISE CONTROL. Watch what you
are doing and use common sense. Do not operate tool when
you are tired. Do not rush operation of tool.
19. CHECK DAMAGED PARTS. Before further use of the tool,
a guard or any other part that is damaged should be carefully
checked to determine that it will operate properly and perform
its intended function. Check for alignment of moving parts,
binding of moving parts, breakage of parts, mounting and
any other conditions that may affect its operation. A guard or
any other part that is damaged should be properly repaired
or replaced by an authorised service centre.
20. DO NOT USE TOOL IF SWITCH DOES NOT TURN IT ON
AND OFF. Have defective switches replaced by authorised
service centre.
21.DO NOT OPERATE THIS TOOL WHILE UNDER THE
INFLUENCE OF DRUGS, ALCOHOL OR ANY
MEDICATION.
22. THE APPLIANCE IS NOT INTENDED FOR USE BY YOUNG
OR INFIRM PERSONS WITHOUT SUPERVISION. YOUNG
CHILDREN SHOULD BE SUPERVISED TO ENSURE THAT
THEY DO NOT PLAY WITH THE APPLIANCE.
RULES FOR SAFE OPERATION
The operation of any tool can result in
foreign objects being thrown into your
eyes, which can result in severe eye
damage. Before beginning power tool
operation, always wear safety goggles
or safety glasses with side shields and
a full face shield when needed. We recommend Wide Vision
Safety Mask for use over eyeglasses or standard safety
glasses with side shields.
SAVE THESE INSTRUCTIONS
FOR FUTURE REFERENCE
Due to continued product
refinement policy, product features
and specifications can and will
change without notice. Check
current features and specifications
with your retailer.
2

5
6
8
9
17
3
B
2
4
Fig.1
Fig.2
A
Fig.3
Fig.4 Fig.5
D
C
A

ERH750VN
Fig.6
4

SAFETY PRECAUTIONS
Important
To protect yourself from the risk of electric
shock, injury and fire when using an electric
tool , it is imp erati ve to tak e the fol lowin g
basi c safet y preca ution s. Befo re you us e
your tool, read these instructions carefull y
and ma ke sure t hat you u nders tand th em
thoroughly.
Make sure that the supply voltage (Volts) used
corresponds to the voltage marked on the tool's rating
plate.
When you are finished, unplug the rotary hammer drill
from the power supply and remove the chisel or drill bit.
Always disconnect the rotary hammer drill from the
power supply before you change the chisel or drill bit.
5
ITEMS SUPPLIED
- Storage carry case
- Rotary hammer drill
- Depth gauge
- Auxiliary handle
- 1 x 13 mm Keyless chuck
- 1 x 13 mm chuck adaptor
- 1 x 6 mm x 160 mm SDS bits
- 1 x 8 mm x 160 mm SDS bits
- 1 x 10 mm x 160 mm SDS bits
- 1 x Flat chisel (W17 mm x L250 mm)
DESCRIPTION (FIG. 1)
1. Locking Collar
2. Trigger Switch
3. Variable Speed Dial
4. Rotation Reverse Lever
5. Lock On Button
6. Auxiliary Handle
7. Depth Stop
8. Mode Selector
9. Livetool IndicatorTM
Make sure of your footing when drilling freehand.
Before drilling, use a line detector to locate
concealed electric, water or gas lines in walls. Avoid
touching live components or conductors.
Wear goggles and use a dust mask on jobs
generating dust.
Do not use your rotary hammer drill near flammable
liquids or gases.
PRODUCT SPECIFICATIONS
ERH750VN
Voltage 240V 50 Hz
AC only
Power consumption 750W
No Load speed 0 - 1100 min-1
Maximum drilling capacity:
- steel 13 mm
- concrete / stone 24 mm
Tool attachment SDS-Plus
Weight 3.20 Kg
your tool or changing accessories.
Keep the power cable in good condition. Oil and acid
can damage the cable.
Never overload the tool.
Make sure your workplace is safe.
Important
It is imperative to follow all national safety
regulations concerning installation, operation and
maintenance of the tool.
If incorrectly fitted, chisel bits and drill bits may be
flung out of the tool accidentally and cause serious
injury. Before you start using your rotary hammer
drill, always check that the chisel or drill bit is
properly locked in the chuck.
Examine the chuck regularly for signs of wear or
damage.
Always press the rotary hammer drill against the work
surface (wall, ceiling etc.) before you start it.
k b

6
SAFETY PRECAUTIONS
Wear work gloves to protect fingers from bruising and
grazing.
Vibrations can injure the hand-arm system. Keep
exposure to vibrations as short as possible.
Always keep the power cord behind the tool.
Store the tool out of the reach of children.
When using the tool, always hold it with both hands
and ensure that you have stable footing.
Chisels may only be used with ERH750VN with Roto-
stop engaged.
BEFORE STARTING TO USE YOUR ROTARY
HAMMER DRILL
Examine the place where the tool is to be used for
hidden electrical cables, gas and water pipes using a
pipe finding device.
Before you plug in your tool, make sure that the
supply voltage used corresponds to that indicated on
the rating plate.
FITTING AND CHANGING BITS (FIG. 2)
The device is equipped with an SDS-plus attachment
system.
Clean the bit and grease it with a thin layer of
machine grease before inserting it into the chuck.
Pull back the locking collar (A. Fig. 2) and hold it.
Push and rotate the dust-free bit into the bit holder
as far as it will go.
Release the locking collar to lock the bit.
Check that it has locked by pulling on it.
REMOVING THE BIT FROM THE SDS-PLUS
SYSTEM (FIG.3)
Pull back the Locking collar (A) and remove the bit.
SWITCHING ON/OFF
maximum speed of the drill, rotate the dial (3) on
the front of the trigger until the desired setting
is achieved.
Lock-on button
If you want to keep your rotary hammer drill operating
at a constant speed, press the lock-on button (5)
while pressing the variable switch. To unlock this
function, briefly press the trigger switch (2) then
release it.
AUXILIARY HANDLE (FIG. 4)
For reasons of safety, only use the rotary hammer drill
when it is fitted with the auxiliary handle.
To loosen the auxiliary handle, rotate the handle
anticlockwise until the handle assy is free to move.
Position the handle as required then lock securely by
rotating the handle clockwise until it is tight.
DEPTH GAUGE (FIG. 5)
Fit the depth stop. Loosen wing bolt D to adjust the depth
stop. The depth of the hole drilled will be equal to the
distance between the end of the drill bit and the front end
of the depth stop.
MODE SELECTOR (FIG. 6)
Your rotary hammer drill is equipped with a hammer stop
facility for smooth drilling into timber and plastics.
To deactivate the hammer action, turn the mode
selector (8) clockwise to “ ”
To reactivate the hammer action, the mode selector
(8) has to be reset to “ ”
You can use the selector to change modes even when
the hammer drill is operating (at low speed). The selected
mode is only activated once the trigger switch (2) is
pressed to start the tool.
Note: Anti-clockwise rotation during impact drilling
damages the drill bit. Deactivate the hammer
action when using a diamond drill bit.
ROTATION STOP
The mode selector features a third position, Rotation Stop
Mode “ ”,which stops the rotation of the tool whilst
maintaining the hammer action.This feature enables the
tool to be used for chiselling, when fitted with the
appropriate bit.
increase as more pressure is applied. To limit the
Sp
b
x
b
(2)

REVERSING THE DIRECTION OF ROTATION
The direction of rotation of the drill may be changed by the
use of the reverse lever (4) on the switch, situated above
the trigger. The position of this should only be changed
when the drill is at a standstill.
The reverse lever has two positions:
Clockwise rotation: Set the reverse lever to the right
position.
Anti-clockwise rotation: Set the reverse lever to the
left position.
Important
When hammer drilling, you do not need to force
the drill. Too much pressure will place
unnecessary load on the motor. Check the drill
bits regularly. Re-sharpen or replace blunt drill
bits.
Livetool IndicatorTM
This tool features a Livetool IndicatorTM (9) which illuminates
as soon as the tool is connected to the power supply. This
warns the user that the tool is connected to live power and
will operate when the switch is pressed.
MAINTENANCE
Unplug the rotary hammer drill before making any
adjustment, servicing or cleaning the tool.
Keep your machine clean at all times.
Never use caustic agents to clean the plastic parts.
At the end of your work, to prevent dust deposits you
should use compressed air (max. 3 bar) to clean out
the ventilation slots.
Check the carbon brushes regularly (dirty or worn
carbon brushes result in excessive sparking and
7
After use, check the tool to make sure that it is in good
condition.
It is recommended that you take this tool to a Ryobi
Authorized Service Centre for a through cleaning and
lubrication at least once a year.
DO NOT MAKE ANY ADJUSYMENTS WHILE THE
MOTOR IS IN MOTION.
ALWAYS DISCONNECT THE POWER CORD FROM THE
POWER SUPPLY BEFORE CHANGING REMOVABLE
OR CONSUMABLE PARTS LUBRICATING OR WORK-
ING ON THE UNIT.
If the supply cord is damaged, it shall be replaced by the
manufacturer or its service agent or similar qualfled
person in order to avold a hazard.
SAVE THESE INSTRUCTIONS FOR FUTURE REFER-
ENCE.

RYOBI TECHNOLOGIESAUSTRALIA PTY. LTD.
GUARANTEE
RYOBI TECHNOLOGIES AUSTRALIA PTY. LTD.
A.B.N. 98 002 277 509
SYDNEY: 359-361 Horsley Road, Milperra, N.S.W. 2214.
Contact during normal business hours.
RYOBI NEW ZEALAND PTY. LTD.
AUCKLAND: 27 Clemow Drive, Mt Wellington, N.Z.
Contact during normal business hours.
Subject to the guarantee condition below, this Ryobi tool
(hereinafter called “the product”) is guaranteed by Ryobi
(hereinafter called “the Company”) to be free from
defects in material or workmanship for a period of 24
months from the date of original purchase covering
both parts and labour. Under the terms of this
guarantee, the repair or replacement of any part shall
be the opinion of the Company or its authorised agent.
Should service become necessary during the warranty
period, the owner should contact the RYOBI HELPLINE
1300 361 505 or contact the retailer from whom the
product was purchased.
In order to obtain guarantee service, the owner must
present the sales docket and Guarantee Certificate
to confirm date of purchase. This product is sold by the
dealer or agent as principal and the dealer has no
authority from the Company to give any additional
guarantee on the Companyʼs behalf except as herein
contained or herein referred to.
Guarantee Conditions
This guarantee only applies provided that the Product
has been used in accordance with the manufacturerʼs
recommendations under normal use and reasonable
care (in the opinion of the Company) and such
guarantee does not cover damage, malfunction or
failure resulting from misuse, neglect, abuse, or used
for a purpose for which it was not designed or is not
suited and no repairs, alterations or modifications
have been attempted by other than an Authorised
Service Agent. This guarantee will not apply if the tool is
damaged by accident or if repairs arise from normal
wear and tear.
The Company accepts no additional liability pursuant to
this guarantee for the costs of travelling or
transportation of the Product or parts to and from the
service dealer or agent - such costs are not included in
this guarantee.
Certain legislation, including the Trade Practices Act,
1974 (as amended) and other state and territorial laws
give rights to the buyer and impose liability on the seller in
certaincircumstances.Nothing hereinshall have theeffect
of excluding, restricting or modifying any condition,
guarantee, right or liability imposed, to the extent only
that such exclusion, restriction or modification
would render any term herein void.
BRISBANE : All enquiries Tel : [phone]
TOWNSVILLE: All enquiries Tel : [phone]
MELBOURNE: 960 Stud Road, Rowville,Vic. 3178
Tel : [phone]
HOBART: All enquiries Tel : [phone]
ADELAIDE: All enquiries Tel : [phone]
PERTH: 33-35 Sorbonne Cres. Canning Vale, W.A. 6155
Address Of Dealer
Present This Form With Your Purchase Docket When Guarantee Service Is Required.
Tel: [phone] - Fax: [phone] - www.ryobi.com.au
Tel: [phone] - Free Call: 0800 279 624 - Fax: [phone] - www.ryobi.co.nz
For your record and to assist in establishing date of purchase (necessary for in-guarantee service)
please keep your purchase docket and this form completed with the following particulars.
This Guarantee Form Should Be Retained By The Customer At All Times
Date Model No Serial No
Tel : [phone]