Stark 50120 Original instruction manual
OWNER’S MANUAL AND SAFETY INSTRUCTIONS
CUTTER POWER SAW 16” 3200W
ITEM # 50120
SAVE THIS MANUAL. KEEP THIS MANUAL FOR SAFETY WARNINGS, PRECAUTIONS, ASSEMBLY,
OPERATION, INSPECTION, MAINTENANCE AND CLEANING PROCEDURES. WRITE THE PRODUCT’S
SERIAL NUMBER ON THE BACK OF THE MANUAL, OR THE MONTH AND YEAR OF PURCHASE IF
PRODUCT HAS NO SERIAL NUMBER
FOR QUESTIONS, PLEASE CALL CUSTOMER SERVICE: 909.628.4900
SAFETY WARNINGS
Read all safety warnings and instructions. Failure to follow the warnings and
instructions may result in injury and/or property damage. Save all warnings and
instructions for future reference.
The warning and safety instructions in this manual are not meant to cover all possible conditions and
situations that may occur. Common sense, caution and care must be exercised when operating or
cleaning tools and equipment. Always contact your dealer, distributor, service agent or manufacturer
about problems or conditions you do not understand before operating the product.
Keep the work area clean and well lit. A cluttered work area may cause accidents. Never allow children to
use this product. When operating this product, keep children and animals at a safe distance from the work
area.
Do not operate power tools in explosive atmospheres, such as in the presence of ammable liquids, gases or
dust. Power tools create sparks which may ignite the dust or fumes.
Keep children and bystanders away while operating a power tool.
Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any adapter plugs with
grounded power tools. Unmodied plugs and matching outlets will reduce risk of electric shock.
Avoid body contact with grounded surfaces such as pipes, radiators, ranges and refrigerators. There is an
increased risk of electric shock if your body is grounded.
Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of
electric shock.
Be aware of all power lines, electrical circuits, water pipes and other mechanical hazards in your work area,
particularly those hazards below the work surface hidden from the operator’s view that may be unintentionally
contacted and may cause personal harm or property damage.
Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep cord away
from heat, oil, sharp edges or moving parts. Damaged or entangled cords increase the risk of electric shock.
When operating a power tool outdoors, use an extension cord suitable for outdoor use. Use of a cord suitable
for outdoor use reduces the risk of electric shock.
If operating a power tool in a damp location is unavoidable, use a Ground Fault circuit interrupter (GFci)
protected supply. Use of a GFCI reduces the risk of electric shock.
Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use a
power tool while you are tired or under the inuence of drugs, alcohol or medication. A moment of inattention
while operating power tools may result in serious personal injury.
1
Use personal protective equipment. Always wear eye protection. Safety equipment such as dust mask, non-
skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries.
Prevent unintentional starting. Ensure the switch is in the o-position before connecting to power source,
picking up or carrying the tool. Carrying power tools with your nger on the switch or energizing power tools
that have the switch on invites accidents.
Remove any adjusting key or wrench before turning the power tool on. A wrench or a key left attached to a
rotating part of the power tool may result in personal injury.
Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool
in unexpected situations.
SAFETY WARNINGS SAFETY WARNINGS
1 2
Dress properly. Do not wear loose clothing or jewelry. Keep your hair, clothing and gloves away from moving
parts. Loose clothes, jewelry or long hair can be caught in moving parts.
If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected
and properly used. Use of these devices can reduce dust-related hazards.
Only use safety equipment that has been approved by an appropriate standards agency. Unapproved safety
equipment may not provide adequate protection. Eye protection must be ANSI-approved and breathing
protection must be NIOSH-approved for the specic hazards in the work area.
Do not force the power tool. Use the correct power tool for your application. The correct power tool will do the
job better and safer at the rate for which it was designed.
Do not use the power tool if the switch does not turn it on and o. Any power tool that cannot be controlled with
the switch is dangerous and must be repaired.
Disconnect the plug from the power source before making any adjustments, changing accessories, or storing
power tools. Such preventive safety measures reduce the risk of starting the power tool accidentally.
Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power tool or
these instructions to operate the power tool. Power tools are dangerous in the hands of untrained users.
Maintain power tools. Check for misalignment or binding of moving parts, breakage of parts and any other
condition that may aect the power tool’s operation. If damaged, have the power tool repaired before use.
Many accidents are caused by poorly maintained power tools.
Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely
to bind and are easier to control.
Use the power tool, accessories and tool bits etc. in accordance with these instructions, taking into account
the working conditions and the work to be performed. Use of the power tool for operations dierent from those
intended could result in a hazardous situation.
Keep hands away from cutting area and the blade. Keep your second hand on auxiliary handle, or motor
housing. If both hands are holding the saw, they cannot be cut by the blade.
Do not reach underneath the workpiece. The guard cannot protect you from the blade below the workpiece.
Adjust the cutting depth to the thickness of the workpiece. Less than a full tooth of the blade teeth should be
visible below the workpiece.
Never hold piece being cut in your hands or across your leg. Secure the workpiece to a stable platform. It is
important to support the work properly to minimize body exposure, blade binding, or loss of control.
Hold power tool by insulated gripping surfaces when performing an operation where the cutting tool may
contact hidden wiring or its own cord. Contact with a ″live″ wire will also make exposed metal parts of the
power tool ″live″ and shock the operator.
Always use blades with correct size and shape (diamond versus round) of arbor holes. Blades that do not
match the mounting hardware of the saw will run eccentrically, causing loss of control.
INSTALLATION
3
SAVE THESE WARNINGS.
CAUSES AND OPERATOR PREVENTION OF KICKBACK:
• Kickback is a sudden reaction to a pinched, bound or misaligned saw blade, causing an uncontrolled saw to lift
up and out of the workpiece toward the operator;
• When the blade is pinched or bound tightly by the kerf closing down, the blade stalls and the motor reaction
drives the unit rapidly back toward the operator;
• If the blade becomes twisted or misaligned in the cut, the teeth at the back edge of the blade can dig into the
top surface of the wood causing the blade to climb out of the kerf and jump back toward the operator.
• Kickback is the result of saw misuse and/ or incorrect operating procedures or conditions and can be avoided
by taking proper precautions as given below:
A. Maintain a rm grip with both hands on the saw and position your arms to resist kickback forces. Position your
body to either side of the blade, but not in line with the blade. Kickback could cause the saw to jump backwards,
but kickback forces can be controlled by the operator, if proper precautions are taken.
B. When blade is binding, or when interrupting a cut for any reason, release the trigger and hold the saw
motionless in the material until the blade comes to a complete stop. Never attempt to remove the saw from the
work or pull the saw backward while the blade is in motion or kickback may occur. Investigate and take corrective
actions to eliminate the cause of blade binding.
C. When restarting a saw in the workpiece, center the saw blade in the kerf and check that saw teeth are not
engaged into the material. If saw blade is binding, it may walk up or kickback from the workpiece as the saw is
restarted.
D. Support large panels to minimize the risk of blade pinching and kickback. Large panels tend to sag under
their own weight. Supports must be placed under the panel on both sides, near the line of cut and near the edge
of the panel.
E. Do not use dull or damaged blades. Unsharpened or improperly set blades produce narrow kerf causing
excessive friction, blade binding and kickback.
F. Blade depth and bevel adjusting locking levers must be tight and secure before making cut. If blade adjustment
shifts while cutting, it may cause binding and kickback.
G. use extra caution when making a ″plunge cut″ into existing walls or other blind areas. The protruding blade
may cut objects that can cause kickback.
Maintain labels and nameplates on the tool. These carry important safety information.
Do not lay the tool down until it has come to a complete stop.
When using a handheld power tool, maintain a rm grip on the tool with both hands to resist starting torque.
Do not leave the tool unattended when it is plugged into an electrical outlet.
Use clamps (not included) or other practical ways to secure and support the workpiece to a stable platform.
People with pacemakers should consult their physician(s) before use. Electromagnetic elds in close proximity
to heart pacemaker could cause pacemaker interference or pacemaker failure.
SAFETY WARNINGS
INSTALLATION
SAVE THESE WARNINGS.
ASSEMBLY
4
1. Connect the cutting blade to the arbor using the lock nut supplied.
2. Secure the blade into the saw and tighten the bolt.
3. Place the guide over the blade and secure it in place using the screw nut provided.
INSTALLATION
5
ASSEMBLY
4. Connect the other side of the guide using a screw nut.
5. Attach the stationary knob and conrm it will allow you to
adjust the depth.
6. Press in the hose adapter for
water applications.
ASSEMBLY
OPERATION
6
OPERATING THE HOSE REEL
1. Slowly pull the hose reel to desired length. A ratcheting mehanism inside the reel makes a short series of
clicking sounfs every revolution of the reel.
2. To lock the real into postion, listen for the clicking sounds as the hose is slowlyy oulled from the reel. When
the reel clicks, stop pulling the hose. Decrease tension on the hose and the reel will lock into postion.
3. To retract the hose onto the reel, slowly pull out hose until you hear a series of clicking sounds stop. (1/8
revolution). DO NOT LET OF THE HOSE. Allow the hose to retract slowly until the hose stopper rests against
the hose guide.
4. Periodically check the hose for excessive wear and hose connection for leaks.
MAINTAINING THE HOSE REEL
Refer to the parts diagram for part numbers
1. Disconnect the air supply and puul abut 2 feet of hose and latch the reel.
2. Remove the hose stopper.
3. While rmly holding onto the edge of the reel drum, unlatch the reel and carefully allow the drum to slowly
rewind drawing hose end back through the guide arm roller assembly abd onto the reel. Latch reel into position.
4. To increase tension: Unlatch the reel and turn clockwise, as viewed from the air inlet side. To decrease
tension: Unlatch and allow reel to rotate slowly counterclockwise, as viewed from the air inlet side.
5. Once the desired spring tension is reached, latch the reel into postion. Feed the hose end through the roller
assembly in the guide aem and reattach the hose stopper.
6. Connect the incoming air supply.
REPLACING AIR INLET VALVE O-RINGS
Refer to the parts diagram for part numbers.
1. Disconnect incoming air supply and inlet-end of hose from brass air inlet valve.
2. Unscrew air inlet valve assembly (6A & 6B) from axle shaft (13) by tting wrench onto hex portion of the valve
and turning counterclockwise.
3. Remove retaining ring (31) and slide air inlet valve swivel collar (6B) o from air inlet valve body (6A)
4. Remove worn O-rings (2pcs) and replace with new parts.
5. Reverse above procedure to reassemble.
ASSEMBLY
OPERATION
7
REPLACING HOSE
1. Secure and stabilizing reel. In most cases, the hose can be replaced with reel still mounted.
2. Disconnect the incoming air supply.
3. Pull out entire length of the hose and lock reel. Make sure reel is securely locked in place.
4. Unscrew hose clamps that secure hose to drum. Disconnect the inlet end of the hose from the inlet valve
5. Pull inlet end of the hose through the slot in the drumand guide rollers, removing old hose completely.
6. Remove spring hose guard, hose clamp and hose stopper from old hose. Fit these parts on to a new hose
in identical positions.
7. Feed inlet end of the hose through the guide rollers and slot in drum.
8. Apply teon sealant tape or thread sealant to hose connector and connect to air inlet valve.
9. Attach the hose clamp tp drum. Rewind the hose onto the reel using normal operation.
REPLACING SPRING CANISTER
1. Follow steps 1-4 under “Adjusting Recoil Tension” above.
2. Unlatch reel and allow drum to slowly rewind completely until tension in spring is relieved and reel stops.
Carefully sontrol the speef of the drum. Do not release while rewinding.
3. Remove air inlet valve and spacing washer. Refer to “Replacing Air Inlet Valve O-rings: Step2”.
4. Remove nuts from mounting bracket side of the drum, inside drum cavity. Do not attemot to remove spring
canister nuts on air inlet side of the drum.
5. Pull entire apring canister (part 1) o the drum axle (13), replace with new spring canister.
6. Reverse above procedure to re-assemble.
7. After assembly, retension the reel by turning the drum three complete turns clockwise.
8. Feed hose through the guide arm and reattach hose stopper.
8
OF NOTE
8
PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY
DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR
DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE
OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS QUALIFIED
TO REPLACE ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR
EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN
BY CERTIFIED AND LICENSED TECHNICIANS, AND NOT BY THE BUYER. THE BUYER ASSUMES
ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR
REPLACEMENT PARTS THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT
PARTS THERETO.
Record Product’s Serial Number Here:
Note: If product has no serial number, record month and year of purchase instead.
Note: Some parts are listed and shown for illustration purposes only and are not available
individually as replacement parts.
MADE IN CHINA
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