Zenit Powertools GM-1000 User manual

InstructIon manual
Belt sander
Gm-1000


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GENERAL SAFETY PRECAUTIONS
WARNING! When using electric tools, basic safety precautions should always be fol-
lowed 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 inrm persons away. Do not let visitors touch the tool or exten-
sion 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 inrm 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
performance. 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

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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
damaged 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, break-
age 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 attachments recommended in this instruction man-
ual or in the catalogue of ZENIT ТМ.
22. Have your tool repaired by a qualied person. This electric tool is in accordance with
the relevant safety requirements. Repairs should only be carried out by qualied persons using
original ZENIT TM spare parts. Otherwise this may result in considerable danger to the user.
Warning
Before sanding check the material to be sanded.
If during operation dust emission is expected, e.g. lead-based paint, wood and metal, ensure
that the dust bag or dust suction system are securely connected to the dust extraction hole.
If accessible, additionally wear a dust mask. Never inhale and touch poisonous dust, emitted
while sanding.
DESCRIPTION
1. Handle
2. Shoe plate
3. Switch

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TECHNICAL SPECIFICATIONS
Model GM-1000
Rated power 220-240 V
Rated voltage 1000 W
Rated frequency 50-60 Hz
Belt speed 220 m/min
Sanding belt size 533 mm
Sanding belt width 76 mm
APPLICATIONS
Sanding nish and ooring of woodwork products.
Base polishing of lumber-coated surfaces.
Sanding nishes of metal surfaces.
Base polishing of metal-coated planes, rust removal, or paint removal paint to renish.
Surfacial nish of slate, concrete, and so on.
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.
When the work area is removed from the power source. Use an extension cord of
sufcient thickness and rated capacity. The extension cord should be kept as short as
practicable.
4. Attach sanding belt
For parts see section «How to handle sanding belt»
HOW TO HANDLE SANDING BELT
Warning
Be sure to switch power OFF and disconnect the plug from the receptacle to avoid
serious trouble.
1. How to attach sanding belt

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• Pull lever with nger, idle pulley will then move backward.
• Place on drive pulley and idle pulley passing it over the outside of shoe plate and
making sure that arrow on inside of belt coincides with rotational direction of drive
pulley.
• Push lever with nger, idle pulley will then move forward and give proper tension to
sanding belt. In this case, be careful not to be hit your nger by lever.
Caution
Sanding belt installed in the wrong direction will lower work efciency and shorten
life of sanding belt.
2. How to remove sanding belt
Pull lever with nger, sanding belt will then sag and can be taken off pulleys easily.
DUST REMOVAL
When an excessive amount of dust is deposited in the dust bag, dust-collecting ef-
ciency will sharply drop. Remove dust from the bag when it is deposited up to about
2/3 the bag capacity, where by dust collecting efciency (as well as working efcien-
cy) will be ensured.
Remove dust from the bag as follows:
• Loosen the support bar and remove the dust bag.
• The bag inlet can be opened by unzipping the slide fastener.
HOW TO USE THE BELT SANDER
1. How to adjust sanding position
Push switch and turn sanding belt to check position. If sanding belt is operated too far
on the side, it may cause abrasion and damage machine. Adjust sanding belt by turning
adjust screw. Turn adjust screw clockwise to move belt in. Turn adjust screw to move
belt out.
Caution
If sanding belt moves during operation, adjustment can be made while in operation.
2. Turning on
Turn on switch while holding machine away from surface to be worked on. If machine
is placed on surface when switch is pushed, surface may be badly scratched.
3. How to hold machine
Grasp handle and handle knob and hold machine against surface to be worked on so
that it contacts surface slightly. Weight of the machine itself is sufcient for sand-
ing and polishing at highest efciency. Do not apply any additional pressure, for this
would place unnecessary load on motor, shorten life of sanding belt and lower work
efciency.
4. How to move machine

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Move machine forward rst and then backward, repeating the motion.
5. How to select proper sanding belt
Choose sanding belt of proper grain size and grain type for your specic purpose, by
referring to Table 1 and 2 below.
Table 1
Derived nish Proper grain size
Coarse nish 30-40
Medium nish 40-100
Semi ne 80-240
Fine nish 180-400
Table 2
Grain type Surface to be worked on
АА Steel, Wood
WA Wood, Bamboo
Caution
For grain sizes, refer to Table 2
Sanding belt grain should be coarser than sandpaper used for manual work. Use sand-
ing belt of same grain size until uniform surface is obtained. Changing grain sizes may
result in poor nish.
6. How to operate switch
The power switch is turned ON when the trigger is pulled, and if the stopper is once
depressed, the power switch becomes locked, allowing continuous operation. The
stopper can be released pulling the trigger.
7. Adjusting the belt speed
The belt sander 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 belt
sander operates at the minimum speed. When the dial is set to “5”, the belt sander
operates at the maximum speed.
MAINTENANCE AND INSPECTION
1. Checking sanding belt
As prolonged use of worn sanding belt will reduce efciency, replace sanding belt
after rst signs of excessive abrasion.
2. Inspecting the mounting screws.
Regularly inspect all mounting screws and ensure that they are properly tightened.

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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 authorized service center ZENIT 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, modication 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 modied to incorporate the lat-
est technological advancements.
Accordingly, some parts may be changed without prior notice.

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Demix LLC
Head ofce:
14, Shevchenko str., 3rd oor
Dnepropetrovsk, Ukraine, 49044
tel./fax: +38 056 375-43-16
http://www.en.zenit-pro.com
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