Zenit Semi-Profi Series User manual

InstructIon manual
JIg saw
Js-900 profI
SEMI-PROFI SERIES

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GENERAL SAFETY PRECAUTIONS
WARNING! When using electric
tools, basic safety precautions should always
be followed to reduce the risk of re, electric
shock and personal injury, including the
following.
Read all these instructions before operating
this product and save these instructions.
For safe operations:
1. Keep work area clean. Cluttered areas and
benches invite injuries.
2. Consider work area environment. Do not
expose power tools to rain. Do not use power
tools in damp or wet locations. Keep work area
well lit. Do not use power tools where there is
risk to cause re or explosion.
3. Guard against electric shock. Avoid body
contact with earthed or grounded surfaces.
(e.g. pipes, radiators, ranges, refrigerators).
4. Keep children and inrm persons away. Do
not let visitors touch the tool or extension cord.
All visitors should be kept away from work
area.
5. Store idle tools. When not in use, tools
should be stored in a dry, high or locked up
place, out of reach of children and inrm
persons.
6. Do not force the tool. It will do the job better
and safer at the rate for which it was intended.
7. Use the right tool. Do not force small
tools or attachments to do the job of a heavy
duty tool. Do not use tools for purposes not
intended.
8. Dress properly. Do not wear loose clothing
or jewelry; they can be caught in moving parts.
Rubber gloves and non-skid footwear are
recommended when working outdoors. Wear
protecting hair covering to contain long hair.
9. Use eye protection. Also use face or dust
mask if the cutting operation is dusty.
10. Connect dust extraction equipment. If
devices are provided for the connection of dust
extraction and collection facilities ensure these
are connected and properly used.
11. Do not abuse the cord. Never carry the tool
by the cord or yank it to disconnect it from the
receptacle. Keep the cord away from heat, oil
and sharp edges.
12. Secure work. Use clamps or a vise to hold
the work. It is safer than using your hand and it
frees both hands to operate tool.
13. Do not overreach. Keep proper footing and
balance at all times.
14. Maintain tools with care. Keep cutting
tools sharp and clean for better and safer per-
formance. Follow instructions for lubrication
and changing accessories. Inspect tool cords
periodically and if damaged, have it repaired
by authorized service center. Inspect extension
cords periodically and replace, if damaged.
Keep handles dry, clean, and free from oil and
grease.
15. Disconnect tools. When not in use, before
servicing, and when changing accessories such
as blades, bits and cutters.
16. Remove adjusting keys and wrenches.
Form the habit of checking to see that keys and
adjusting wrenches are removed from the tool
before turning it on.
17. Avoid unintentional starting. Do not carry
a plugged in tool with a nger on the switch.
Ensure switch is off when plugging in.
18. Use outdoor extension leads. When tool
is used outdoors, use only extension cords
intended for outdoor use.
19. Stay alert. Watch what you are doing. Use
common sense. Do not operate tool when you
are tired.
20. Check damaged parts. Before further use
of the tool, a guard or other part that is dam-
aged should be carefully checked to determine
that it will operate properly and perform its
intended function. Check for alignment of
moving parts, free running of moving parts,

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breakage of parts, mounting and any other
conditions that may affect its operation. A
guard or other part that is damaged should be
properly repaired or replaced by an authorized
service center unless otherwise indicated
in this instruction manual. Have defective
switches replaced by an authorized service
center. Do not use the tool if the switch does
not turn it on and off.
21. Warning Use only accessories or attach-
ments recommended in this instruction manual
or in the catalogue of ZENIT ТМ.
22. Have your tool repaired by a qualied per-
son. This electric tool is in accordance with the
relevant safety requirements. Repairs should
only be carried out by qualied persons using
original ZENIT TM spare parts. Otherwise
this may result in considerable danger to the
user.
SAFETY PRECAUTIONS ON USING JIG
SAW
This Jig Saw employs a high-ower motor. If
the machine is used continuously at low speed,
an extra load is applied to the motor which can
result in motor seizure. Always operate the
power tool so that the blade is not caught by
the workpiece during operation. Always adjust
the blade speed to enable smooth cutting..
DESCRIPTION
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9
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5
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1. «On/Off» switch;
2. Stopper;
3. Speed control;
4. Saw clamp;
5. Protective cover;
6. Switch of the pendular move mode;
7. Dust hose.
8. LED switch;
9. Switch of the dust removal mode;
TECHNICAL SPECIFICATIONS
Model JS-900 pro
Rated voltage 220-240 V
Rated frequency 50-60 Hz
Rated power 900 W
Cutting depth in wood 80 mm
Cutting depth in metal 8 mm
Cutting angle (left/right): 0-450
Rod stroke 0-3000 spm
APPLICATIONS
Cutting various lumber and pocket cutting.
Cutting mild steel plate, aluminum plate, and
copper plate. Cutting plastics, such as phenol
resin and vinyl chloride. Cutting thin and soft
construction materials.
Cutting stainless steel plate.
PRIOR TO OPERATION
1. Power source.
Ensure that the power source to be utilized
conforms to the power requirements specied
on the product nameplate.
2. «On\Off» switch.
Ensure that the power switch is in the OFF
position. If the plug is connected to a receptacle
while the power switch is in the ON position,
the power tool will start operating immediately,
inviting serious accident.
3. Extension cord.

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When the work area is removed from the power
source. Use an extension cord of sufcient
thickness and rated capacity. The extension
cord should be kept as short as practicable.
4. Dust
Dust created by power sawing can cause
damage to health. One of the following ways is
recommended:
а) using dust mask
б) using dust suction equipment.
When using suction equipment connect adaptor
with hose of the dust suction equipment.
5. Changing blades
5.1 Open the lever up to the stop.
5.2 Remove tted blade
5.3 Insert new blade up to the stop in the blade
holder
5.4 Close the lever
CAUTION
Be sure to switch power OFF and disconnect
the plug from the receptacle when changing
blades.
Do not open the lever when plunger is moving.
NOTE
Conrm the protrusion of blade inserted to the
blade holder surely. Conrm the blade located
between the groove of roller.
6. Adjusting the blade operating speed
The jig saw is equipped with the electric control
circuit which enables stepless speed control. To
adjust the speed, turn the dial. When the dial is
set to “1”, the jig saw operates at the minimum
speed (500 /min.). When the dial set to “5”,
the jig saw operates at the maximum speed
(3000/min.). Adjust the speed according to the
material to be cut and working efciency.
7. Cutting stainless steel plates
This Jig Saw can cut stainless steel plates by
using No. 97 blade. Carefully read “Concerning
cutting of stainless steel plates” for proper
operation.
8. Splinter guard
Using the splinter guard when cutting wood
materials will reduce splintering of cut
surfaces.
Insert the splinter guard in the space on the
base, and push it completely.
9. Chip cover
Chip cover prevents chips from ying off and
improves the efciency of dust collector. Insert
the chip cover between the base and lever, and
push with a slight pressure until it catches in
place. When removing chip cover, hold both
sides of knob and slightly open until it can be
removed from the Jig Saw
NOTE! There is a possibility that chip cover is
frosted when cutting the metal.
10. Sub base
Using the sub base (made from steel) will
reduce abrasion of aluminum base especially in
cutting metals.
Using the sub base (made from rasin) will
reduce scratching of surface. Attach the sub
base to the bottom surface of base by attached
4 screws.
CUTTING
CAUTION
In order to prevent blade dislodging, damage
or excessive wear on the plunger, please make
sure to have surface attached to the work piece
while sawing.
1. Rectilinear cutting
When cutting on a straight line, rst draw a
marking gauge line and advance the saw along
that line. Using the guide (sold separately) will
make it possible to cut accurately on a straight
line.

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(1) Loosen the base bolt allen wrench attached
on base.
(2) Move the base fully forward, and tighten the
base bolt again.
(3) Attach the guide by passing it through the
attachment hole on the base and tighten the M5
bolt.
(4) Set the orbital position to “0”.
2. Cutting a circle or a circular arc
The guide also will be helpful for circular
cutting. After attaching the guide by same way
noted as above, drive the nail or screw into the
material through the hole on the guide, then use
it for a axis when cutting.
NOTE
Circular cutting must be done with the blade
approximately vertical to the bottom surface of
the base.
4. Cutting metallic materials
(1) Adjust the speed Dial between scales “3”
and “4”.
(2) Set the orbital position to “0” or “I”.
(3) Always use an appropriate cutting uid
(spindle oil, soapy water, etc.). When a liquid
cutting uid is not avaiable, apply grease to the
back surface of the material to be cut.
5. Pocket cutting
(1) In lumber
Aligning the blade direction with the grain of
the wood, cut step by step until a window hole
is cut in the center of the lumber.
(2) In other materials
When cutting a window hole in materials other
than lumber, initially bore a hole with a drill or
similar tool from which to start cutting.
6. Angular cutting
The base can be swiveled to both sides by up to
45° for angular cutting.
(1) Loosen the base bolt by allen wrench attached
on base and move the base fully forward.
(2) Align the scale (from 0 degrees to 45 degrees
by 15-degree increments) of the semi-circular
part of the base with the [ ] mark on the gear
cover.
(3) Tighten the M5 bolt again.
(4) Set the orbital position to “0”.
NOTE
Angular cutting cannot be done when adopting
chip cover or dust collector.
CONNECTING WITH CLEANER
By connecting with cleaner (sold separately)
through dust collector and adopter (sold
separately), most of dust can be collected.
(1) Remove the allen wrench from the base.
(2) Move the base fully forward.
(3) Attach the chip cover with the shutter put
between the chip cover and gear cover.
(4) Connect the dust collector with adopter.
(5) Connect the adapter with the nose of
cleaner.
(6) Insert dust collector into the rear hole of the
base until the hook catches in the notch.
(7) Press the hook to remove the dust collector.
NOTE
Wear dust mask when possible.
SELECTION OF BLADES
To ensure maximum operating efciency
and results, it is very important to select the
appropriate blade best suited to the type and
thickness of the material to be cut.
HOUSING THE ALLEN WRENCH
It is possible to house the auxiliary wrench on
the base.
MAINTENANCE AND INSPECTION
1. Inspecting the blade
2. Since use of a dull tool will cause motor

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malfunctioning and degraded efciency, replace
the drill bit with a new one or resharpening
without delay when abrasion is noted.
2. Inspecting the mounting screws.
Regularly inspect all mounting screws and
ensure that they are properly tightened. Should
any of the screws be loose, retighten them
immediately. Failure to do so could result in
serious hazard.
3. Maintenance of the motor.
The motor unit winding is the very “heart” of
the power tool. Exercise due care to ensure the
winding does not become damaged and/or wet
with oil or water.
4. Inspecting the carbon brushes.
The motor is equipped with carbon brushes,
which wear with time. When a brush reaches
the wear limit, the motor may malfunction.
If the engine is equipped with a disengaging
brush, it will automatically turn off. In this case
replace both carbon brushes. Keep the brushes
clean and ensure that brushes move freely
within the brush holders.
5. Replacing power cord
In case power cord of the tool is damaged,
contact ZENIT authorized service center to
replace it.
CAUTION
When using the drill follow these rules:
• continuous use of the tool should not exceed
15 minutes;
• do not allow mechanic damage (strikes, falls
etc.);
• protect the drill from external sources of heat
and chemically active substances, as well as
liquid and objects penetration;
• provide effective cooling and drilling wastes
withdrawal from the tool working zone;
• before disconnecting the tool from the power
source turn off the On/Off switch;
• check the engine temperature, do not allow
overheating;
• change the rotation direction only after
switching off the tool and complete stop of
rotating parts;
• do not use bits not intended for concrete and
brick drilling in impact mode.
Inobservance of these rules will make warranty
void!
WARNING! Repair, modication and
check of ZENIT power tools should be
performed only in authorized service centers
ZENIT. While use or maintenance of power
tools follow all safety rules and standards.
NOTE
Zenit Power Tools are constantly being
improved and modied to incorporate the latest
technological advancements.
Accordingly, some parts may be changed
without prior notice.

Demix LLC
Head ofce:
14, Shevchenko str., 3rd oor
Dnepropetrovsk, Ukraine, 49044
tel./fax: [phone]
http://www.en.zenit-pro.com