Ronix 4740 User manual

ELECTRIC CHAIN SAW
4740

USER MANUAL 1
TECHNICAL SPECIFICATIONS
Model 4740
Power 2400W
voltage 220V
frequency 50Hz
Guide bar Length 40cm
Chain Speed 14M/S
Net Weight 5.1Kg
Parameter Value
Type of model 4740
Supply voltage 220 V
Current frequency 50 Hz
Rated power 2.4 KW
Drive link count 57
Chain pitch 8/3``
Chain gauge 0.050`` (1.3 MM)
Saw chain oil SAE 10W30
Oil tank capacity 150 Ml
Saw chain speed (no load) 14 M/s
Chain brake activation time 0.12 S
Guide-bar length 16 CM / 40``
Cutting length with guide-bar 400 mm (16”) 390MM
Protection class II

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PART LIST
Clamp knob
Adjusting knob
Tool less cap
Front handle
Oil tank cap
Power Indicator
Power
cord hook
On /Off Switch
Switch lock button
Saw chain
and guide bar
Guide bar
sleeve
Rear handle
Overload protector
Chain brake lever
/ front hand guard
TECHNICAL DATA
Accessories: 5Meter Extension Cord
ORIGINAL INSTRUCTION MANUAL
Before operating the electric chain saw, please read carefully all
instructions, recommendations and warnings and keep them safe
for further reference for all who will use the fan heater.
In case you decide to sell or submit this product to a new owner,
please make sure the “Instructions’ Manual” is available with it, so
that new owner can get acquainted with the relevant safety measures
and operating instructions.

USER MANUAL 3
.GENERAL GUIDELINES FOR SAFE OPERATION
Read all instructions carefully. Failure of the nature following
instructions can cause electric shock, fire and / or severe injuries.
Keep these instructions in a safe place.
1- Safe operation of electric chain saws.
Warning! Persons unfamiliar with instruction manual are not allowed to
use chain saw.
Use the chain saw for cutting wood only.
The manufacturer is not responsible for losses and damages resulting
from unintended use of the chain saw.
2- Workplace. Work area safety. Keep your workplace tidy and ensure
it is well lit.
Untidiness and insufcient illumination contribute to accidents especially
when chain saws are in use. Keep children and bystanders away from the
workplace.
Distraction may cause loss of control over the tool.
3- Safety when working with electricity.
3-1 Plug of the chain saw must be suitable for contact. In no case is allowed
to modify the structure of the plug. When working with electrical zero, do
not use plug adapters. Using original plugs and sockets reduces the risk of
electric shock.
3-2 Keep the chain saw away from rain and moisture.
Inltration of water into the chain saw increases the risk of electric shock.
3-3 Do not use a power cord for the purposes for which it is not provided, for
example to carry chain saw for cable or removing the plug from the outlet.
Protect cords from heat, oil and contact with sharp edges or mobile points
of machines. Damaged or twisted cables increase the risk of electric shock.
3-4 When you work with the chain saw outdoors, switch the machine
only in installations equipped with electric switch “Fi” RCD (Residual
Current Device). RCD must be no more than 30 mA.
Use an extension cord suitable for outdoor use. Use of a cord suitable
for outdoor use reduces the risk of electric shock.
3-5 If you operating with a chain saw in a damp location is unavoidable,

ELECTRIC CHAIN SAW
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use a residual current device (RCD) protected supply. Use of an RCD
reduces the risk of electric shock.
Using the extension, designed for outdoor use reduces the risk of electric
shock.
4- Personal safety.
Use safety equipment, such as work suit, protective glasses, protective
shoes, protective helmet, earmuffs and protection leather gloves. Using
safety equipment in appropriate conditions reduces risk of body injury.
Do not overestimate your abilities. Stand rmly and keep your balance
at all times.
It enables better control over the chain saw in unpredicted situations.
Do not wear loose clothing or jewellery. Keep your hair, clothes and
gloves away from moving parts. Loose clothing, jewellery or long hair
may be caught by moving parts.
5- Transportation and storage.
When carrying the chain saw put on the chain cover and switch on the
chain brake. Carrying unsecured and operating chain saw may cause
body injury. Carrying the chain saw is possible only when holding its
front handle.
Other parts may not ensure appropriate grip and even cause injury.
Inspect your chain saw. Check alignment and xing of moving parts,
check against part cracks and all other factors that may affect operation
of the chain saw. Repair the chain saw before use if it is found damaged.
Many accidents are caused by improper maintenance of machine.
Saw chain should be clean and sharp. Proper maintenance of sharp
cutting edges of saw chain reduces the risk of jamming and makes
operation easier.
6- Power tool use and care.
Check proper operation of the saw brake regularly. In emergency situ-
ation, non-operational brake may make saw chain disengagement im-
possible.
7- Safety operation.
7-1 Be concentrated, watch the actions carefully and act cautiously and

USER MANUAL 5
prudently. Do not use the chain saw when you are tired or under the
inuence of drugs, alcohol or narcotic drugs. A moment of distraction at
work with chain saw may have the effect of extremely serious injuries.
7-2 Avoid the danger of incorporating the chain saw inadvertently. If you
carry a chain saw, keep your nger on the trigger switch, or if you submit
a voltage of grinding when turned on, there is the risk of accident.
7-3 Before you switch on the chain saw, that you are sure to remove
all utilities and wrenches. Utilities, forgotten on rotating unit can cause
injuries.
7-4 Avoid unnatural positions of the body. Work in a stable position of
the body at any time and keep the balance. So you can control the chain
saw better and safer if unexpected situations arise.
7-5 Well as a long time when you will not use the chain saw, unplug the
plug from the electric installation. This measure eliminates the danger of
triggering the grinding inadvertently.
7-6 Keep a chain saw in places where they cannot be reached by chil-
dren. Do not allow them to be used by persons who are not familiar with
how to work with them and have not read those instructions.
7-7 Keep your chain saw with care. Check whether the mobile units op-
erate impeccable, if there is a broken or damaged item which distort or
alter the functions of the chain saw. Before using the chain saw, make
sure that the damaged parts to be repaired. Many accidents are caused
by poorly maintained power tools and appliances.
7-8 Keep the power cords a safe distance from rotating work tools. If you
lose control of the chain saw, the cable can be cut or fascinated by the
working tool and it can cause injuries.
7-9 Never leave chain saw before working tool to completely stop its
rotation. Rotary tool can touch the object, resulting in losing control of
the chain saw.
7-10 Regularly clean the vent on your chain saw.
7-11 Do not use a chain saw near ammable materials. Flying sparks
can cause the ignition of such materials.
7-12 Never put your hands near the rotary working tools. If the kick oc-

ELECTRIC CHAIN SAW
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curs, the instrument can make you hurt.
7-13 Do not use the chain saw when the power cord is damaged. If
during operation the cable is damaged, do not touch. Immediately dis-
connect the plug from the electric installation.
Damaged power cables increase the risk of electric shock.
Failure of the considered instructions may lead to electric shock, re and
/ or severe injuries.
7-14 Be very careful at the end of a cut, because the chain saw having
no support in processed material falls down due to its inertia, which may
cause injuries.
7-15 When working for a long time, the saw operator may experience
formication and numbness in ngers and hands. Stop working in such
case, because numbness reduces precision in saw use.
7-16 In the appearance of signs of fatigue should immediately stop work.
7-17 Only one person can operate with the chain saw at a time. All other
persons shall be away from working area of the chain saw. Especially
children and animals should be away from working area.
7-18 When starting the saw, its chain must not rest on the processed
material or touch anything else.
7-19 When working with the chain saw hold it with both hands by both
handles. Keep rm body position.
7-20 Children and juveniles cannot operate the chain saw. Allow access
to the saw only to adults who know how to handle the tool. This instruction
manual should be given with the chain saw.
7-21 Before starting to cut set the chain brake lever in appropriate position
(pull it to yourself). It is also hand guard.
7-22 Move chain saw away from the material being cut only when the
cutting chain is working.
7-23 When cutting processed sawn wood or thin branches use support
(sawing horse). Do not cut several boards at the same time (placed one
on top of another), or material held by other person or held with foot.
7-24 Long objects should be rmly xed before cutting.
7-25 When you working on sloping terrain stay with the face to slope.

USER MANUAL 7
7-26 When cutting through always use the bumper spike as a point of
support. Hold the saw by the rear handle and guide with the front handle.
7-27 In case the cut cannot be completed in one run, pull the saw a little
back, put the bumper spike in another place and continue the cut lifting
rear handle slightly.
7-28 When cutting in horizontal plane, position yourself at an angle
as close to 90° from cutting line as possible. Such operation requires
concentration.
7-29 When the chain is pinched when cutting with the tip of the bar, the
saw may recoil towards operator. Because of this effect cut with the
straight part of the chain whenever possible. Then, in case of pinching,
the recoil effect changes direction away from the operator.
7-30 Be very careful while cutting wood if there is the risk of splitting. Pieces
of wood that are cut off can be ung in any direction (risk of body injury!).
7-31 Only trained persons should cut tree branches! Uncontrolled fall of
a tree branch constitutes a risk of body injury!
7-32 Do not cut with tip of the guide bar (risk of recoil).
7-33 Pay special attention to branches under strain. Do not cut branches,
which hangs freely, from below.
7-34 Always stand to the side of predicted fall line of the tree that is to
be cut.
7-35 During a tree fell there is a risk that branches of the tree, or trees
in proximity, will break and fall. Be very careful, otherwise a body injury
may occur.
7-36 On a sloped terrain the operator should stay on upper part of the
slope with respect to the tree being cut, never lower.
7-37 Watch out for logs that may roll down towards you.
7-38 Operating saw tends to rotate when tip of the chain guide bar
touches processed material.
In such case the saw may get out of control and move towards the operator
(risk of body injury!).
7-39 Do not use the saw above your shoulder level, or when standing on
a tree, ladder, scaffold, trunk etc.

ELECTRIC CHAIN SAW
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8 To prevent saw recoil follow below instructions.
8-1 Never start or guide a cut with the tip of the guide bar!
8-2 Always start cutting with saw previously switched on!
8-3 Ensure the cutting chain is sharp.
8-4 Never cut more than one branch at a time. When cutting off, watch
out for surrounding branches. When cutting a tree through, watch out for
nearby tree trunks.
.CONSTRUCTION AND USE
Electric chain saw is a hand-held tool. The chain saw is a device driven
by a single-phase commutator motor. The saw can be used for cutting
down trees, cutting branches, rewood, wood for replace and other
tasks where cutting wood is necessary.
Use the device according to the manufacturer’s instructions only.
Noise level and vibration parameters:
The values are measured according to EN 60745-2-13:2009.
Sound pressure LpA = 96, 0 dB (A)
Sound power LwA = 105, 3 dB (A)
Uncertainty K = 3 dB
Wear ear protection! Wear earmuffs!
Vibration acceleration ah:
Front handle ah = 4, 12 m/s2
Rear handle ah = 4, 67 m/s2
Uncertainty K = 1.5 m/s2
. PREPARATION FOR OPERATION
1- Prior to carrying the chain saw unplug the power cord from mains
socket and slide chain cover onto guide bar and chain. When carrying
the chain saw, hold it by front handle. If several cuttings are to be made,
switch off the chain saw with the switch (1) between tasks.
2- Installation of guide bars and saw chain.
Chain saw should be disconnected from electric supply.
Use pin and adjustment screw for adjustment of chain tension. It is very

USER MANUAL 9
important that the bolt located on adjustment screw falls into hole in the
guide bar during installation of the guide bar.
You can move the bolt to the front and back by turning the adjustment
screw. Those parts must be set appropriately prior to starting guide bar
installation in the saw.
Brake lever (7) must be in the upper (vertical) position.
Unscrew the guide bar xing nut (12) and remove the casing.
Put the chain (8) onto driving chain wheel located behind the clutch.
Install the guide bar (9) (slide it behind the clutch) onto guiding screws
and push towards driving chain wheel.
Put the chain (8) onto guide bar chain wheel from below.
Move the guide bar (9) away from the driving chain wheel, so chain
guiding links are placed in the guide bar groove.
Ensure the pin of the chain tension adjustment screw is in the middle of
the lower hole of the guide bar (9), adjust when necessary.
Place the casing in its place and x by slightly tightening guide bar xing
nut (12).
Strain the chain appropriately using the chain tension adjustment screw
(11). Chain tension is appropriate when the chain can be lifted by 3 to 4
mm in the middle of the guide bar in horizontal position.
Firmly tighten guide bar xing screw (12) while holding the guide bar tip.
Prior to guide bar and chain installation ensure that position of chain
cutting blades is appropriate (correct position of the chain on the guide
bar is shown on the tip of the guide bar). Always wear protective gloves
during checks and installation of the chain to prevent cuts from sharp
edges of the chain.
New chain requires start-up period, which lasts approximately 5
minutes. Chain lubrication is very important in this phase. Check
chain tension after start-up period and readjust if necessary.
Check and adjust the chain tension frequently. Too loose chain can easily
slide off the guide bar, quickly wear out or quickly wear out the guide bar.
3- Filling saw tank with oil.