NIKKARI SSST User manual

Trimmer/Brush Cutter Attachment
SSST
Instruction Manual
Copyright (C) 2015 NIKKARI Co., Ltd. All Rights Reserved
For Safe Use of Trimmer/Brush Cutter
Attachment
●Be sure to read this manual and the powerhead
(separately sold) manual to have a good understanding
of the contents before handling the brush cutter.
●If there is no powerhead manual, you can purchase
one from your servicing dealer.
●Keep this manual and the powerhead manual in a
readily accessible location.
Contents
Important Information ······················ 2
1. Safety ····································· 4
1.1 Warnings ······································· 4
1.2 General Precautions ························ 6
1.3
Safety Devices and Protective Guard ······ 11
1.4 Protective Equipment ····················· 12
1.5 Noise·········································· 12
1.6 Vibration······································ 12
2. Outline ···································13
2.1 Name of Parts and Their Functions ··· 13
2.2 Specication ································ 13
2.3
Attached Material ································ 14
2.4 Option (to be separately sold) ················ 14
2.5 Position of Model and Serial No.······· 15
2.6 Replaceable Items························· 15
3. Installation··································16
3.1 Installation Method ························ 16
3.2 Installation of Grass Debris Shield ···· 19
3.3 Installation of Cutting-line Head········ 20
4. Operation ·······························21
4.1 Transporting method ······················ 21
4.2 Objects to be cut ··························· 22
4.3 Pre-operation Check ······················ 23
4.4 Start and Stop ······························ 24
4.5 Precautions for Operation ··············· 24
4.6 Cutting Operation ·························· 26
4.7 Releasing Cutting Line ··················· 28
4.8 Actions after Operation··················· 28
5. Maintenance ···························29
5.1 Daily··········································· 30
5.2 Every 20 Hours····························· 30
5.3 As Necessary ······························· 31
6. Storing ···································34
7. Waste Disposal························35
8. Installation of Grass Cutting
Steel Blade (Option) ·················36
9. Troubleshooting ·······················38
10. Servicing ································39
11. Technical data ························40
How to Contact Honda ···················41
Distributor's Limited Warranty ··········42
PRODUCT REGISTRATION············43
SSST
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2
Important Information
Intended Purpose
This product (hereinafter referred to as an attachment) is designed to be attached to an approved
powerhead (to be purchased separately) for cutting grass, weeds and brush. (Refer to page 16 for
approved powerheads.)
Do not use the trimmer/brush cutter for any other purpose or in any other way.
Attachment series separately sold
Trimmer/Brush Cutter
Powerhead (Separately sold)
Optional Attachments
Attachment
(This product)
General
●This attachment is equipped with a cutting-line head as a standard item.
The cutting-line head can also be replaced with an optional grass cutting steel blade (purchased
separately).
●When using the grass cutting steel blade (option), use a genuine blade kit or genuine parts. Before using
the grass cutting steel blade, read the manual of the blade kit carefully and have a good understanding
of the contents.
●In this instruction manual, the word "cutting head or blade" is used as a general term for blades such as
cutting-line heads and grass cutting steel blades (option).
●Refer to the powerhead manual for further information on handling the powerhead.
●When handling the trimmer/brush cutter, observe all the applicable safety rules, standards or regulations
in the area where the trimmer/brush cutter is used.
This trimmer/brush cutter is designed and produced according to the standards and regulations applied
in the purchase country, assuming that the use is limited to the purchase country only. It will not comply
with standards and regulations of other countries. Do not export or resell the trimmer/brush cutters to
any other countries because the languages are different.
●Before use, read this instruction manual and the powerhead manual thoroughly, and have a good
understanding of the contents. Do not allow any person who does not understand the contents of this
manual to handle the trimmer/brush cutter.
●Do not take any actions other than those described in this manual and the powerhead manual.

3
Important Cautions for Safe Work
●NIKKARI Co., Ltd. (hereinafter referred to as NIKKARI) cannot foresee all the risks in handling the
trimmer/brush cutter. Therefore, also give consideration to general safety measures not stated in this
manual and powerhead manual to prevent injuries when handling the trimmer/brush cutter.
●The trimmer/brush cutter is a high-speed cutting tool. To decrease risk of personal injury, special safety
precautions must be observed. If it is used carelessly or inappropriately, the cutting-line head could
make contact with hands or body, resulting in a fatal or serious injury such as amputation of hands or
ngers.
Important Cautions for Instruction Manual
●This instruction manual is copyrighted and all rights are reserved. This instruction manual, in whole or
part, may not be copied, translated or reproduced to any electronic medium or machine readable without
prior written consent from NIKKARI.
●The contents described in this instruction manual and powerhead manual are subject to change without
prior notice.
● Illustrationsorguresshowninthisinstructionmanualmaypartiallydifferfromyourtrimmer/brush
cutter.
●If you lend or rent the trimmer/brush cutter, be sure to provide the user with this manual and the
powerhead instruction manual. Also, advise the user that they need to have a good understanding of
the content of both manuals before starting any work.
●If this instruction manual or powerhead manual is lost or damaged, order a replacement from your
servicing dealer immediately.
●If you have any questions about descriptions in this manual or powerhead manual, contact your
servicing dealer.
●The names of companies and products described in this manual are generally trademarks or registered
trademarks of each company.

4
1. Safety
California Proposition 65
This product contains or emits chemicals known to the State of California to cause cancer, birth defects, or
other reproductive harm.
1.1 Warnings
For appropriate use of the trimmer/brush cutter, follow the instructions in this manual. Warning labels
are attached to places where there are potential risks. The warning labels in this instruction manual are
categorized depending on the degree of risk as shown in the table below.
1.1.1 Warning Description
Signal words in this instruction manual are categorized as shown below. If the warning for each signal
word is ignored, injury or death may result.
Meanings of signal words
DANGER
Indicates an immediately hazardous situation which, if not avoided, will
result in death or serious injury.
WARNING
Indicates a potentially hazardous situation which, if not avoided, could result
in death or serious injury.
CAUTION
Indicates a potentially hazardous situation which, if not avoided, could result
in mild to moderate injury.
Note It could result in property damage.
Indicates to emphasize important information or provide helpful information.
Meanings of symbols
Caution
Sign
Indicates that hazardous situation may result if you fail to follow the
instructions. The hazards are indicated by the pictogram inside the
symbol.
Prohibition
Sign
Indicates prohibition of dangerous action. Prohibited actions are
indicated by the pictogram inside or by the symbol.
Enforcement
Sign
Indicates enforcement of actions. Actions to be enforced are
indicated by the pictogram inside the symbol. This action is required
to avoid hazard.

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1.1.2 Warning Labels
Cautions for Handling
(a) This trimmer/brush cutter is provided with warning labels to indicate important cautions.
Understand the meanings of the warning labels thoroughly to work in a safe environment.
(b) Do not operate the trimmer/brush cutter until you have a good understanding of the meanings of
the warning labels. If you do not understand the meanings, contact your servicing dealer.
(c) Be sure to observe the warning labels and warning messages in the instruction manual at all
times while handling the trimmer/brush cutter.
(d) Do not remove or damage the warning labels. Also, do not clean the warning labels with solvent.
(e) Do not paint the warning labels when repainting the trimmer/brush cutter.
(f) If the warning labels become illegible, damaged or removed, purchase new ones from your
servicingdealer,andattachtheminaccordancewiththe“■WarningLabelsandAttached
Locations".
Warning Labels and Attached Locations
1 32 4 5 6 7 8 9
1 Be sure to read the instruction manual and completely understand it before use.
2 Wear personal protective equipment for eyes, ears, and head during operation.
3 Wear protective shoes (sturdy boots with nonslip sole) during operation.
4 Wear gloves during operation.
5 Exhaust contains carbon monoxide, a clear, odorless gas that can injure or kill you. Only use in
well ventilated locations.
6 Take care not to injure your legs with a cutting attachment.
7 Pay attention to the objects scattered by the cutting attachment. Do not use the trimmer/brush
cutter with the grass debris shield removed.
8Do not hit the cutting head or blade against something hard. The cutting head or blade will
     .
9 Keep people and animals out of the area within a radius of 50 ft (15 m) from the trimmer/brush
cutter during operation.

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1.2 General Precautions
1.2.1 Overall Precautions
When handling the trimmer/brush cutter, follow the precautions of the powerhead manual in addition to the
following precautions.
Do not use for cutting branches etc.
Do not use the trimmer/brush cutter when tired, ill, or after consuming alcohol,
drugs, or medication.
Do not use the trimmer/brush cutter with the grass debris shield removed.
* Itcouldcauseaseriousinjuryasaresultofyingdebris,etc.
Be sure to rmly tighten the knob bolt at the attachment connection before
using the attachment.
* The attachment could come off, resulting in serious injury or death.
Do not use the trimmer/brush cutter for any purpose other than the grass
cutting.
Do not allow minors to operate the trimmer/brush cutter.
Do not modify the trimmer/brush cutter.
Do not install any unapproved powerhead to the attachment.
Do not remove the safety devices.
Do not touch the cutting head or blade during operation.
If you lend or rent the trimmer/brush cutter, be sure to provide the user with
this manual and the powerhead instruction manual. Also, advise the user that
he or she needs to have a good understanding of the content of both manuals
before starting any work.
Always shut off the engine and remove the trimmer/brush cutter from the
powerhead before handling the blade.

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1.2.2 Precautions for Clothing
Wear a hard hat when using or transporting the trimmer/brush cutter.
Wear appropriate personal protective equipment when using the trimmer/brush
cutter.
For details about protective clothing refer to “1.4 Protective Equipment”.
Wear goggles meeting the requirements of ANSI Z87.1 when using the trimmer/
brush cutter.
Also use a face shield (or face screen) if possible.
* Failuretousegogglesorfaceshield,couldresultineyeinjuryfromyingdebris.
Wear hearing protective equipment such as ear protections when using the
trimmer/brush cutter.
1.2.3 Precautions before Operation
Do not allow children or animals to enter the working range of the trimmer/
brush cutter within 50 ft (15 m).
Do not operate the trimmer/brush cutter near electrical wires.
* Otherwise, you may suffer an electric shock.
Make sure that the trimmer/brush cutter is operated normally or there is not
any part missing or damaged before starting the operation.
Before starting the operation or when hitting the trimmer/brush cutter against
something hard such as stones, make sure that the knob bolt of powerhead
connections is not loosened.
* Otherwise, it could cause the attachment to fall off.
Make sure that the positioning knob is lowered to the locked position when
installing the trimmer/brush cutter. (Refer to page 18.)
* The attachment could come off.
Before use, always inspect the powerhead and attachment for any loose,
damaged or missing parts.
* Anything loose, damaged, or missing could cause parts of the powerhead attachment to
fall off or fail and seriously injure or kill the user.
Before using cutter, inspect the work area for any obstacles that cannot be
removed so you can avoid contacting them when operating the cutter.
* Otherwise, you may trip on the obstacle or unintentionally hit it with the blade, potentially
resulting in serious injury or death.

8
Note
●If the edge of the optional blade is blunt or damaged, do not operate the trimmer/brush cutter.
Otherwise, it could cause damage to the engine and machine due to overloading.
1.2.4 Precautions at Start-up
The trimmer/brush cutter must only be started and operated by one person.
* Operation by more than one person increases the likelihood of mishandling and
resulting injury.
Always start the trimmer/brush cutter in an open, at area with the cutting head
or blade off the ground.
* Otherwise, you risk injury from falling or hitting the cutting head or blade on the ground
or obstacles.
1.2.5 Precautions for Operation
Do not operate the trimmer/brush cutter on insecure footings including a
ladder, tree, back of the truck.
* You could fall off the footing, drop the trimmer/brush cutter or contact the cutting head or
blade by inappropriately handling it, resulting in serious injury or death.
Do not operate the trimmer/brush cutter using just one hand.
* You could drop the trimmer/brush cutter or contact the cutting head or blade by
mishandling, potentially leading to serious injury or death.
If the cutting head or blade starts moving while idling, do not use the trimmer/
brush cutter.
While cutting grass, put up a KEEP OUT sign in a prominent place to prevent
any third person from entering within 50 ft (15 m) of the working area.
* Otherwise, a serious injury may happen.
Be sure to use cutting head or blade and the other parts specied by the
manufacturer.
* Ifanycuttingheadorbladeotherthanthatspeciedisused,thecuttingheador
blade could be damaged or it could come off, resulting in injury of the operator and/or
bystanders.

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Exhaust contains carbon monoxide, a clear, odorless gas that can injure or kill
you. Only use in well ventilated locations.
Always keep the trimmer/brush cutter head at or below waist height.
* Using the trimmer/brush cutter with the head higher than waist height increases the risk
of mishandling or loss of balance, potentially resulting in serious injury or death.
Always concentrate on your work when using the trimmer/brush cutter.
Ifyouneedtodootherworkortalktoothers,stoptheenginerst.
* Failure to properly concentrate could result in mishandling and resultant injury.
Always use the harness when operating the trimmer/brush cutter.
* Failure to use the harness increases the likelihood of mishandling and resultant injury.
If the cutting head becomes entangled and stops, stop the engine and make
sure the cutting blade is not moving before untangling the cutting head.
* Failure to fully stop the engine and cutting blade could result in cuts to or amputation of
ngers,handsorarms.
Do not touch hot surfaces such as the gear case during or immediately after
the operation.
* Failure to observe the instruction could result in burns because the gear case could be
very hot.
1.2.6 Precautions for Maintenance
Do not perform any maintenance or repair other than those described in the
instruction manual.
Other maintenance or repairs should be performed by your servicing dealer.
Do not replace parts with inappropriate parts.
* Failure to observe the instruction could cause the product not to perform as intended
and cause injury due to deterioration of safety.
Before performing maintenance, repair or cleaning, stop the engine and remove
the attachment from the powerhead.
* Iftheenginestartsduringthework,handsorngerscouldbeseveredbythemoving
parts, or cutting head or blade, resulting in serious injury or death.
Note
● Useaspeciedgrease(generalpurposeNo.2lithiumgrease).AlsoreferredtoasNLGIGrade-2
Lithium Based Grease. Using the wrong grease can lead to damage or failure.

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1.2.7 Precautions for Transporting
Before transporting the trimmer/brush cutter, stop the engine, and ensure the
cutting head or blade has stopped.
For grass cutting steel blade (option), install the transportation guard (option).
Note
●When transporting the trimmer/brush cutter, install it to a harness or keep it balanced by holding the
shaft tube.
●Before transporting the trimmer/brush cutter on the back of the truck, etc., remove the attachment from
the powerhead, and then secure it so it does not move.
1.2.8 Precautions for Storing
When storing the attachment with the hook of the pipe cap attached to the pipe,
etc., do not pull or swing the attachment.
When storing the blade attachment, install the transportation guard (option) on
the grass cutting steel blade (option) and place it out of the reach of children.

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1.3 Safety Devices and Protective Guard
1.3.1 Safety Devices (Stop Devices)
To stop the trimmer/brush cutter in case of an abnormality, use the stop device on the powerhead and stop
the operation of the cutting head or blade.
Refer to the powerhead manual for details.
1.3.2 Safety Devices (Quick Release)
In case of an abnormality, the trimmer/brush cutter can be released from the harness by using the quick
release device.
Refer to the powerhead manual for details.
1.3.3 Protective Guard
(Transportation Guard (Option))
For grass cutting steel blade (option), install the
transportation guard to the trimmer/brush cutter for
transporting or storing to prevent an injury due to
contact with the grass cutting steel blade (option).
Installtheguardasshownintherightgure.
Transportation guard

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1.4 Protective Equipment
When using the trimmer/brush cutter for cutting, it is recommended to wear the following protective
equipment.
(a) Hard hat
(b) Working wear (long sleeve jackets and full-
length pants of heavy material)
(c) Protective shoes (sturdy boots with nonslip sole)
(Steel-toed safety boots are recommended.)
Leg protector
(d) Gloves (heavy-duty, nonslip gloves)
(e) Goggles that meet the requirements of ANSI
Z87.1.
(f) Face shield (or face screen) (use together with
goggles is recommended)
(g) Ear protection
Note
●Do not wear any jewelry, neckties or scarves.
●Secure hair so it is above shoulder level.
●If the jackets or pants are loose, tighten the cuffs or hems.
●Do not wear short pants, sandals, or go barefoot.
1.5 Noise
A person operating the trimmer/brush cutter must use ear protection equipment.
However, take care when wearing the ear protection equipment. Your ability to hear shouts or alarms is
restricted.
1.6 Vibration
Vibration generated by the trimmer/brush cutter may cause vibration induced Hand-Arm Vibration
Syndrome (HAVS). This will cause swelling pain or numbness of hands, and there is a risk of affecting the
hand.
To prevent such problems, do not continuously operate for a long time. Instead, take an appropriate break.
Hard hat
Goggles
Ear protection
Face shield
Working wear
Gloves
Protective
shoes

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2. Outline
2.1 Name of Parts and Their Functions
The trimmer/brush cutter is a device with the attachment installed to the powerhead (separately sold).
The following is the structure of the attachment and name and function of each part.
Note
●There are two types of powerheads. For details about the powerhead, refer to the powerhead manual.
2
5
3
4
1
No. Name Description
1 Cutting-line head Rotates at a high-speed and cuts grass, weeds and shrubs, etc. by the
cutting line.
The cutting line rotates counterclockwise as viewed from the operator.
2 Blade holder A part to install the cutting-line head to the gear case.
3 Gear case Changes rotational angle from the powerhead to the cutting head.
4Grass debris shield Guards from objects such as grasses, stones and sand scattered by the
cutting-line head. This also cuts the cutting line to the correct length.
5 Shaft tube It is the main frame. The power transmission shaft is inside this tube.
2.2 Specication
■ StandardSpecication
Item Specication
Cutting-line head (Attached Material) Diameter 16.5 in (420 mm)
Grass cutting steel blade (Blade kit option) Diameter, #teeth, arbor 9 in (230 mm), 4T, 1 in
Grass cutting steel blade (Blade kit option) Diameter, #teeth, arbor 10 in (255 mm), 4T, 1 in
Note
●Grass cutting steel blade and blade kit are separately sold. For genuine parts, contact your servicing
dealer.

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2.3 Attached Material
The following are attached materials. For the powerhead, refer to the powerhead manual.
Instruction manual
(this book)
Cutting-line head Blade holder
Grass debris shield Plate Fixed screw (4 pcs.)
2.4 Option (to be separately sold)
Note
●For part numbers, contact your servicing dealer.
●Do not use a saw tooth saw blade.
Grass debris shield for
grass cutting steel blade
Grass cutting steel
blade
Blade cap Nut cover
The shape differs
depending on the
specication.
This part is also required
if any other type of the
cutting head is installed.
Nut Transportation guard

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2.5 Position of Model and Serial No.
Check the model code of your attachment on the
nameplate attached to the machine shaft.
Record serial No. (See “10. Servicing”). You will need
this model code and serial No. when ordering parts,
and when making technical or warranty inquiries.
Note
●The model code is 4 letters.
The model code is different from the model name.
2.6 Replaceable Items
The following are common replaceable items for this attachment.
Contact your servicing dealer for replacement parts.
Cap Cutting knife Blade holder Cutting-line head
xxxxxxx；Serial No.

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3. Installation
3.1 Installation Method
Before installing or removing any attachment or part, stop the engine and, if
attached, let the cutting blade come to a complete stop.
* Iftheenginestartsduringthework,handsorngerscouldbeseveredbythemoving
parts, or cutting head or blade.
3.1.1 Combination with Powerhead
Do not install any unapproved powerhead to the attachment.
* The attachment could separate from the powerhead causing severe injury.
The attachment can be installed only to our approved equipment (shown below).
Manufacturer Approved Powerheads
Honda Motor Co., Ltd. UMC425A
Honda Motor Co., Ltd. UMC435A

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3.1.2 Connecting
Loosen the knob bolt [1] of powerhead
connections.
Align the boss (protrusion) [2] at the
end of the pipe with the slit of the joint
case [3], and insert it to the label [4]
position.
Make sure that the positioning knob
[5] is lowered to the locked position as
shown, and then tighten the knob bolt
[1] of the powerhead connections.
[1]
[4] [3]
1
[3]
[2]
[4]
2
[5]
[1]
3

18
3.1.3 Removing
Loosen the knob bolt [1] of powerhead
connections.
Lift the positioning knob [5], and
turn it 90°, either clockwise or
counterclockwise.
Pull out the shaft tube [6].
If the shaft tube is hard to remove, hold
it so that the attachment is parallel to
the pipe of the powerhead, and then
pull it out.
Turn the positioning knob [5] until
it comes to the center and locks in
place. When the positioning knob
[5] is returned to the center, it will be
released downward.
[1]
1
[5]
2
[5]
[6]
3
4

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3.2 Installation of Grass Debris Shield
Follow the procedure below to install the grass debris shield.
If the blades are provided, remove the blades before performing this work.
Note
●If a grass cutting steel blade is installed, a different grass debris shield is required (included in blade kit).
However, the installation procedure is the same.
Grass debris shield for cutting-line head Grass debris shield for grass cutting steel blade
(Option)
Cutting knife
●Do not remove the grass debris shield. If the grass debris shield is damaged, contact your servicing
dealer.
Set the start/stop switch to OFF (O side) to stop the engine.
Remove the attachment from the powerhead.
Put on gloves.
Install the grass debris shield [2] and
the plate [3], and x it to the gear case
[1] by tightening with the fixed screw [4]
(4pcs.). The fixed screws can be
tightened using the tool supplied with
the UMC powerhead.
1
2
3
[4]
[3]
[1]
[2]
4

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3.3 Installation of Cutting-line Head
Use the cutting-line head (exible nonmetallic line) recommended by the
manufacturer.
Do not use wire-rope, etc.
* If it is cut, it could be a dangerous projectile, resulting in serious injury.
Thoroughly read “1.2 General Precautions” before installing the cutting-line head.
Install the cutting-line head and other parts as follows:
Set the start/stop switch to OFF (O side) to stop the engine.
Remove the attachment from the powerhead.
Put on gloves.
Remove any foreign objects such as
grass and stones accumulated in part
A of the gear case [1].
Note
●If the cutting-line head is operated with foreign
objects accumulated, the gear case could be
damaged.
Put the blade holder [2] on the output
shaft [3].
Insert the L type wrench (4 mm) [5] into
the hole [6] for holding the gear case
and rotate the cutting-line head [4]
counterclockwise to tighten.
Note
●The output shaft has left-hand threads.
Turn the cutting-line head clockwise to loosen.
●The L type wrench [5] is included in the powerhead.
●If any other type cutting line head is used, then an optional spacer (called blade cap) must be
installed against the existing blade holder [2], to allow the head to seat properly.
1
2
3
[5]
[1]
[4]
[2]
A
[6]
[3]
4
5
6