Sarlo WeedBoss CS-16 User manual

CONTENTS PAGE
SAFETY RULES 1
ASSEMBLY 2
OPERATION 3
MAINTENANCE 4
SERVICE/ADJUSTMENTS 5
TROUBLESHOOTING 6
NOTES 6
STORAGE 7
ILLUSTRATED PARTS LIST 8-9
WARRANTY INFORMATION 10
LINE TRIMMER
MODEL CS-16
SARLO MANUFACTURING
P.O. BOX 1169 FORT MYERS, FL 33902
PHONE: [phone]
™
OWNERS MANUAL
Model CS-16 String Trimmer
Shaft style Curved
Shaft length 56"
Engine 34cc 4-cycle
Briggs & Stratton
Cutting width 16"
Line size.095"/2.4 mm
Unit weight 12.8 lbs
Head type Bump feed
Starting system Easy starting 4-cycle
Handle type Standard loop
Clutch No
Shoulder harness No
Warranty 2 year Consumer
90 day Commercial
This unit is intended for occasional use. P/N 10006 12/03
POWERED BY

SYMBOL MEANING
RULES FOR SAFE OPERATION
SAFETY AND INTERNATIONAL SYMBOLS
This operator’s manual describes safety and international symbols and pictographs that
appear on this product. Read the operator’s manual for complete safety, assembly, operating,
maintenance and repair information.
• SAFETY ALERT SYMBOL
Indicates danger, warning or caution. May be used in
conjunction with other symbols or pictographs.
• WARNING - READ OPERATOR’S MANUAL
Read the operator’s manual(s) and follow all warnings and
safety instructions. Failure to do so can result in serious
injury to the operator and/or bystanders.
• WEAR EYE AND HEARING PROTECTION
WARNING: Thrown objects and loud noise can cause severe
eye injury and hearing loss. Wear eye protection meeting ANSI
Z87.1 standards and ear protection when operating this unit.
Use a full face shield when needed.
• KEEP BYSTANDERS AWAY
WARNING: Keep all bystanders, especially children and pets,
at least 50 feet (15m) from the operating area.
• THROWN OBJECTS AND ROTATING CUTTER CAN
CAUSE SEVERE INJURY
WARNING: Do not operate without the cutting attachment
shield in place.Keep all from the rotating cutting attachment.
WARNING: Never use blades or flailing devices. This unit is
designed for line trimmer use only. Use of any other
accessories or attachments will increase the risk of injury.

1
SAFETY RULES
• Do not allow a person to use this unit unless instructions are read and understood. Never
allow children to operate or play with the unit.
• Do not operate this unit when tired, ill or under the influence of alcohol, drugs, or medication.
• Always wear heavy, long pants, boots, gloves, and a long sleeve shirt. Do not wear loose
clothing, jewelry, short pants, sandals, or go barefoot. Secure hair so it is above
shoulder level.
• Inspect unit before each use. Replace damaged parts. Check for fuel leaks. Make sure all
fasteners are in place and secure. Replace cutting attachment parts that are cracked,
chipped, or damaged in any way. Make sure the cutting attachment is properly installed and
securely fastened. Be sure the cutting attachment shield is properly attached, and in the
position recommended by the manufacturer. Use only flexible, non-metallic line
recommended by the manufacturer.Never use, for example, wire or wire-rope which can
break off and become a dangerous projectile.
• Keep firm footing and balance. Do not over-reach. Keep cutting attachment below waist
level. Keep all parts of your body away from the rotating cutting attachment and hot
surfaces.
• Never start or run the unit inside a closed room or building; breathing exhaust fumes can kill.
• Pour fuel outdoors where there are no sparks and flames. Slowly remove the fuel cap only
after stopping the engine. Do not smoke while fueling. Wipe spilled fuel from the unit. Move
at least 10 ft. (3 m) away from the fueling source and site before starting engine.
• Clear the area to be cut before each use. Remove all objects such as rocks, broken glass,
nails, wire, or string which can be thrown or become entangled in the cutting attachment.
Clear the area of children, bystanders and pets. At a minimum, keep all children, bystanders
and pets outside a 50 ft. (15 m) radius; outside the 50 ft. zone, there is still a risk of injury
to bystanders from being struck with the moving strings in the event of a cutting lines
thrust or other unexpected reaction of the saw.
• The cutting attachment may be spinning during carburetor adjustments. Wear your
protective equipment and observe all safety instructions. When the unit is turned off make
sure the cutting attachment has stopped before the unit is set down.
• The handles and shield must be mounted according to the instructions. The unit is
designed to be used while positioned on the right side.

2
ASSEMBLY INSTRUCTIONS
■TOOL LIST
• Screwdriver (Phillips or Standard)
• Allen wrench 4mm
• 10mm wrench
■INSTALLING CUTTING HEAD
• While locking the gear shaft by inserting
a pin into the upper holder and
the housing.
• Rotate the cutting head to clockwise
to engage threads. Hand-tighten it securely.
■INSTALL ASSIST HANDLE
• Use the 3 screws provided for this assembly.
Mount the back edge of the handle clamp to match
the arrow on the tube. Adjust the handle for
comfort and good balance. Check that the cutting
line of the unit is away from your feet and legs.
■INSTALLING DEBRIS GUARD
• Put the debris guard on the gear box, attach it
with the screw and nut provided.
■STOP AND START SWITCH
1. Ignition switch
2. Stop
3. Start
1
2
3

3
OPERATING INSTRUCTIONS
HOLDING THE TRIMMER
WARNING: Always wear eye, hearing,
foot and body protection to reduce the
risk of injury when operating this unit
Before operating the unit, stand in the operating position
(Fig. 1). Check for the following:
• The operator is wearing eye protection and
proper clothing.
• With a slightly-bent right arm, the operator’s hand is
holding the shaft grip.
• The operator’s left arm is straight, the left hand holding
the D-handle
• The unit is at waist level
• The cutting attachment is parallel to the ground and easily
contacts the grass without the need to bend over.
Fig. 1
ADJUSTING TRIMMING LINE LENGTH
The bump head cutting attachment allows you to release
trimming line without stopping the engine. To release more line,
lightly tap the cutting attachment on the ground (Fig. 2) while
operating the trimmer at high speed.
NOTE: Always keep the trimming line fully extended. Line
release becomes more difficult when the cutting line
gets shorter.
Fig. 2
Each time the head is bumped, about 1 in. (25.4 mm) of
trimming line releases. A blade in the cutting attachment shield
will cut the line to the proper length if any excess line
is released.
For best results, tap the bump knob on bare ground or hard
soil. If you attempt a line release in tall grass, the engine may
stall. Always keep the trimming line fully extended. Line release
becomes more difficult when the cutting line
gets shorter.
NOTE: Do not rest the bump head on the ground while the
unit is running.
Some line breakage will occur from:
• Entanglement with foreign matter
• Normal line fatigue
• Attempting to cut thick, stalky weeds
• Forcing the line into objects such as walls or fence posts.
CAUTION: Do not remove or alter the line
cutting blade assembly. Excessive line length
will overload the engine and could cause
damage to the engine.
TIPS FOR BEST TRIMMING RESULTS
• Keep the cutting attachment parallel to the ground.
• Do not force the cutting attachment. Allow the tip of the
line to do the cutting, especially along walls. Cutting with
more than the tip will reduce cutting efficiency and may
overload the engine.
• Cut grass over 8 in. (200 mm) by working from top to
bottom in small increments to avoid premature line wear or
engine drag.
•Cut from right to left whenever possible. Cutting to the left
improves the unit’s cutting efficiency. Clippings are
thrown away from the operator.
• Slowly move the trimmer into and out of the cutting area at
the desired height. Move either in a forward-backward or
side-to-side motion. Cutting shorter lengths produces the
best results.
• Trim only when grass and weeds are dry.
• The life of your cutting line is dependent upon:
• Following the trimming techniques
• What vegetation is being cut
• Where vegetation is cut
For example, the line will wear faster when trimming against
foundation wall as opposed to trimming around a tree.
DECORATIVE TRIMMING
Decorative trimming is accomplished by removing all
vegetation around trees, posts, fences and more.
Rotate the whole unit so that the cutting attachment
is at 30° angle to the ground (Fig. 3)
Fig. 3
™

4
MAINTENANCE
Refer to your BRIGGS & STRATTON owners’ manual for engine information
1. Adding oil to a new unit 5. Starting a warm engine
2. Adding fuel 6. Engine Maintenance
3. Starting a NEW engine 7. Engine Adjustments
4. Starting and Stopping 8. Service and Storage
9. Engine Warranty
Periodic Maintenance Chart
WARNING:
Accidental engine starting can cause injury. Always remove the spark plug before
servicing the engine to prevent accidental starting.
LACK OF MAINTENANCE OR IMPROPER MAINTENANCE CAN RESULT IN INJURY. MODIFYING
PARTS IN ANY MANNER OR REMOVING ANY PART OF THIS UNIT CAN RESULT IN INJURY. USE
OF NON-CONFORMING PARTS OR COMPONENTS CAN RESULT IN INJURY.
AFTER EVERY SEASON OR
MAINTENANCE EACH FIRST EVERY EVERY
USE 10 HOURS 25 HOURS 50 HOURS
Change oil* n*
Check and replenish fuel n
Check and replenish oil n
Check bolts, nuts and screws for looseness
and loss n
Check throttle lever operation n
Check engine switch operation n
Check guard assembly condition n
Clean/replace in-tank fuel filter n
Clean air filter element n
Tighten bolts, nuts and screws nn
Clean spark plug and adjust electrode gap n
Remove dust and dirt from cylinder fins n
Remove carbon deposits in the exhaust
muffler n
Clean spark arrester screen n
Check gear case assembly lubrication n
Check drive shaft lubrication n
Check valve clearance n
*Change engine oil after first 4 hours of use. Please refer to the engine manual for more details.
NOTE:
The service intervals indicated are to be used as a guide. Service to be performed more frequently as
necessary by operating condition.
These items must be performed with proper tools.
See your authorized dealer for service.

5
SERVICE/ADJUSTMENTS
LINE REPLACEMENT
SAFETY RULES
1. Shut down the trimmer to make certain the head cannot turn while working with
the head.
2. Check mounting of cutting head on trimmer and tighten if it is loose
3. Inspect head for wear, chips or cracks. Replace parts or entire head if needed.
4. Always use line that is the correct diameter and type for this unit. Do not use
metal reinforced or metal line.
5. Make sure the two retaining pawls spread out to the periphery of the
cover windows.
6. Check the head for deflection or abnormal noise by rotating the head by hand.
Deflection or abnormal noise may cause vibrations, which will cause the cutting
line to weld together. It is also potentially dangerous.
REFILLING TRIMMING LINE
1. For replacement line, use a diameter of .095 in.
(2.4 mm). The spool is capable for a line up to 20
ft. (6 m) on the 4 in. head. Avoid using a larger line
as it may cut down the trimming performance.
2. Pinch the slotted area on the both sides of the
spool housing to unhook the bottom cap.
3. Take out the spool and pull off the old line. Put one
end of new line through the spool holes and pull it
until the length is equal between each part of
the line.
4. Wind up the line in the correct direction as
indicated on the spool.
5. Hook each end of the line in the slot on the edge of
the spool, and then put the ends through the
eyelets on the housing. Make sure that the spring
and the washers are in place.
6. While holding the spool against the housing, pull
the line ends to release them from the slot.
7. Line up the slot on the bottom cap with the hook on
the housing, press the cap against the housing until
it clicks.

6
TROUBLESHOOTING GUIDE
NOTES
Case 1. Starting failure
CHECK PROBABLE CAUSES ACTION
Fuel tank ➔Incorrect fuel ➔Drain it and fill with correct fuel
Fuel filter ➔Fuel filter is clogged ➔Clean
Carburetor idle speed screw ➔Out of normal range ➔Adjust to normal range
No spark ➔Spark plug is fouled/wet ➔Clean/dry
➔Plug gap is incorrect ➔[Correct GAP .025" (0.6~0.7 mm)]
Spark plug ➔Disconnected ➔Retighten
Case 2. Engine starts but does not keep running/Hard re-starting
CHECK PROBABLE CAUSES ACTION
Fuel tank ➔Incorrect fuel or stale fuel ➔Drain it and fill with correct fuel
Carburetor idle speed screw ➔Out of normal range ➔Adjust to normal range
Muffler, cylinder(exhaust port) ➔Carbon is built-up ➔Wipe away
Air cleaner ➔Clogged with dust ➔Wash
Cylinder fin, fan cover ➔Clogged with dust ➔Clean
If your unit needs further service, please consult with an authorized service dealer in your area.

7
WARNING: Perform the following steps after each use:
• Allow engine to cool, and secure the unit before storing or transporting.
• Store unit and fuel in a well ventilated area where fuel vapors cannot reach sparks or open flames form
water heaters, electric motors or switches, furnaces, etc.
• Store unit with all guards in place. Position unit so that any sharp objects cannot accidentally cause injury.
• Store unit and fuel well out of the reach of children.
SEASONAL STORAGE
Prepare unit for storage at end of season or if it will not be used for 30 days or more. If your unit is to be
stored for a period of time:
• Drain all fuel from the fuel tank into the proper receptacles for storage.
• Press purge bulb 15 times to remove all fuel from carburetor and fuel lines. Drain this fuel into proper
receptacles. If fuel is to be disposed, please refer to local rules for proper disposal.
• Clean the entire unit before lengthy storage.
• Store in a clean dry area.
• Lightly oil external metal surfaces.
• This trimmer may be stored in a variety of positions. If possible, it is preferred to store the trimmer in a
horizontal position with the spark plug up. The trimmer should not be stored or transported with the
spark plug down.
•Storing or transporting the trimmer with the spark plug down may result in white smoke coming from the
muffler or difficulty starting.
FUEL SYSTEM
Fuel stabilizer is an acceptable alternative in minimizing the formation of fuel gum deposits during storage.
Add stabilizer to the gasoline in the fuel tank or fuel storage container. Follow the mix instructions found on
stabilizer container. Run engine at least 5 minutes after adding stabilizer.
ENGINE
• Remove spark plug and pour 1 teaspoon of HD30 wt. engine oil through the spark plug opening. Slowly
pull the starter rope 8 to 10 times to distribute oil.
• Replace spark plug with new one of recommended type and heat range.
•Clean air filter
•Check entire unit for loose screws, nuts, and bolts. Replace any damaged, broken, or worn parts.
• At the beginning of the next season, use only fresh fuel.
OTHER
• Do not store gasoline from one season to another.
• Replace your gasoline can if it starts to rust.
•When removing the unit from storage, only use fresh gasoline. Perform the routine operation checks as
spelled out in the manual before any start.
STORAGE

8
CURVED SHAFT CS-16
™
10212
10237
10239
10238
10220
10221
10211
10222
10200
10210
10002
10032
10041
10231
10236 10235
10000
10014
10015
10017
10016
Engine
ILLUSTRATED PARTS LIST

9
CURVED SHAFT CS-16
Part Number Model Used On Quantity Description
10000 BC-8/SS-18/CS-16 1 Decal for pipe
10002 SS-18/CS-16 1 Label
10006 CS-16 1 Owner's manual
10014 CS-16/SS-18/BC-8 1 Nose cone A
10015 CS-16/SS-18/BC-8 1 Nose cone B
10016 CS-16/SS-18/BC-8 2 Nose cone screw
10017 CS-16/SS-18/BC-8 1 Engine clamp assy.
10032 SS-18/CS-16 1 Single type lever
10041 SS-18/CS-16 1 Cable, throttle
10200 CS-16 1 Pipe assy
10210 CS-16 1 Cooling type flexible shaft
10211 CS-16 1 Two bearing head case
10212 CS-16 1 Protector assy
10220 CS-16 1 Blade to cut nylon code
10221 CS-16 1 Screw for the cutter
10222 CS-16 1 Tap and go with dia. 0.095"
10231 CS-16 1Handle assy
10235 SS-18/CS-16 3 Screw for loop handle
10236 SS-18/CS-16 3Nut for loop handle
10237 CS-16 1 Bolt for guard
10238 CS-16 1 Nut for guard
10239 CS-16 1 Washer for clamp bolt
ENGINE SS-18/CS-16 1 34cc 4-cycle Briggs & Stratton, Model 21032 0118 E1
ILLUSTRATED PARTS LIST
WARNING: IT IS UNSAFE TO USE ANY AFTER MARKET HEAD, ATTACHMENT, ACCESSORY
OR BLADE ON THIS UNIT. USE ONLY HEADS, ATTACHMENTS, BLADES AND ACCESSORIES
MANUFACTURED BY SARLO AND INTENDED FOR THIS SPECIFIC MODEL.

10
WARRANTY
SARLO MANUFACTURING, INC. hereby warrants to the original retail purchaser ALL NEW
products of its own manufacture to be free from defect in material and workmanship, for a period of
two (2) years form the date of the original purchase, subject to the following exceptions.
Products Consumer Use Commercial/Rental Use
Hand Held String Trimmers 2 Years 90 Days
• No warranty is extended to any equipment, which has been misused, neglected, or
damaged by accident. Sarlo shall not be responsible for damage in transit or
handling by any common carrier. Under no circumstances, within or without the
warranty period, will the company be liable for damage for loss, or damage resulting
from delay, or any consequential damage including but not limited to any cost or
expense of providing substitute equipment or service during periods of malfunction
or non-use.Sarlo will repair or replace, free of charge any part or parts of the units
found upon examination by any Factory Authorized Dealer or by the factory to be
defective in materials and or workmanship for the term of the warranty.
• The consumer is responsible for: (1) normal maintenance such as greasing, gear
case lubrication, minor adjustment and (2) transportation of any Sarlo product to and
from the place warranty work is performed.
• Sarlo warranty WILL NOT APPLY to any products repaired or altered by anyone other
than an Authorized Service Distributor or Authorized Service Dealer.
• Sarlo reserves the right to incorporate any changes in design into its products
without obligation to make changes on units previously manufactured.
• For engine warranty, please refer to the Briggs & Stratton manual.