Trimmer/Brush Cutter Attachment SSST Instruction Manual Contents Important Information······················· 2 1. Safety······································ 4 1.1 1.2 1.3 1.4 1.5 1.6 Warnings········································ 4 General Precautions························· 6 Safety Devices and Protective Guard······· 11 Protective Equipment······················ 12 Noise··········································· 12 Vibration······································· 12 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.
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.
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.
1.1.2 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.
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 flying debris, etc.
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 flying debris.
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, flat area with the cutting head or blade off the ground.
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 first.
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.
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.
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 fulllength pants of heavy material) (c) Protective shoes (sturdy boots with nonslip sole) (Steel-toed safety boots are recommended.) Leg protector Hard hat Goggles Ear protection Face shield Working wear (d) Gloves (heavy-duty, nonslip gloves) (e) Goggles that meet the requirements of ANSI Z87.1.
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 1 4 No. Name Description 1 Cutting-line head Rotates at a high-speed and cuts grass, weeds and shrubs, etc. by the cutting line.
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 Nut 14 Grass cutting steel blade Blade cap The shape differs depending on the specification.
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. xxxxxxx；Serial No. 2.6 Replaceable Items The following are common replaceable items for this attachment.
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 fingers 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.
3.1.2 Connecting 1 Loosen the knob bolt [1] of powerhead connections. [1] [4] 2 [3] 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. [3] [2] [4] 3 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.
3.1.3 Removing 1 Loosen the knob bolt [1] of powerhead connections. [1] 2 Lift the positioning knob [5], and turn it 90°, either clockwise or [5] counterclockwise. 3 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 [5] pull it out. 4 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.
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.
3.3 Installation of Cutting-line Head Use the cutting-line head (flexible 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: 1 Set the start/stop switch to OFF (O side) to stop the engine. 2 Remove the attachment from the powerhead. 3 Put on gloves.
4. Operation 4.1 Transporting method When transporting the trimmer/brush cutter, wear appropriate clothes and personal protective equipment. * Otherwise, it could cause injury. 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). Remove obstacles, and watch your step when transporting the trimmer/brush cutter.
4 Install it to the harness or use the shaft tube to maintain balance. When hand-carrying the trimmer/brush cutter (1) Remove the attachment from the powerhead. (2) Put the trimmer/brush cutter on the back of the truck, and secure it. 4.2 Objects to be cut Replace with the grass cutting steel blade (option) as necessary. For installing the grass cutting steel blade (option), refer to “8.
4.3 Pre-operation Check Make sure that the trimmer/brush cutter is operated normally or there is not any part missing or damaged before starting the operation. Before operating the trimmer/brush cutter, check the following. (a) If any part is damaged or worn out, replace before using. Contact your service dealer for a replacement part. ● Check to see if there is any looseness, cracks, bending, or distortion of parts (nuts, screws, etc.) ● Check to see if the cutting head or blade is damaged.
4.4 Start and Stop The trimmer/brush cutter is operated by the powerhead. Refer to the powerhead manual. 4.4.1 Start 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. For starting the trimmer/brush cutter, refer to the powerhead manual. 4.4.2 Stop When the throttle trigger is released, the engine power will decrease, and the cutting head or blade will come to a stop.
■ Check the Trimmer/Brush Cutter ● Make sure that the grass debris shield is securely installed in the appropriate position before starting the operation. ● For grass cutting steel blade (option), make sure that it is sharp and not damaged. Replace if necessary. A dull grass cutting steel blade (option) is more likely to snag and bounce back unexpectedly. ● Make sure that an appropriate grass debris shield is installed. ● A blade requires a different shield than the cutting attachment.
4.6 Cutting Operation Do not allow children or animals to enter the working range of the trimmer/ brush cutter within 50 ft (15 m). 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. Pay attention to blade thrust. * * * * Blade thrust may occur when the spinning blade contacts an object that it does not immediately cut.
■ Operating Method ● Before starting cutting operation increase the throttle to full speed. Operating the cutter at lower speeds reduces the tension of the nylon cutting line, resulting in lowered cutting efficiency. ● While swinging your body from side to side, cut the grasses from the right side to left side. The cutting head or blade rotates counterclockwise.
4.7 Releasing Cutting Line Note ● Take care when removing the cutting line. The cutting line could have been cut into pieces, and they could scatter when removing the cutting line. 1 When cutting line becomes shortened, run the engine at full throttle (approx. 8,000 rpm). Then hit tap knob [1] of spool against the ground surface lightly and the line [2] is released from the spool.
5. 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. 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 fingers could be severed by the moving parts or cutting head or blade, resulting in serious injury or death.
5.1 Daily 5.1.1 Inspection of Cutting Head or Blade and Grass Debris Shield Check the following. ● The cutting-line head or grass cutting steel blade (option) are not broken, chipped or bent. ● The grass cutting steel blade (option) is sharp and not rounded. ● There are no cracks or burrs on the grass cutting steel blade (option). ● Inspect grass debris shield. Check for cracks or damage. Be sure the correct grass debris shield is installed. If there is any failure, contact your servicing dealer.
5.3 As Necessary 5.3.1 Replacement of Cutting Line 1 Set the start/stop switch to OFF (O side) to stop the engine. 2 Put on gloves. 3 Press retaining pawls [1] (at 2 places) inward and remove cover [2]. 4 Remove spool [3]. [1] [2] [3] 5 When cutting line on the spool is almost exhausted. (1) Remove remaining line from spool. (2) Wind new line according to the procedures set fourth in step 7, etc. When the line on the spool is melted and stuck.
7 Wind the line firmly into groove of the spool in the winding direction for the line LH. Note ● Carefully wind the cutting line evenly, taking care not to wind irregularly. 8 9 When the line [4] is wound to the end hook both line ends into respective [4] notch [5] of spool for retaining tentatively the line while leaving line [4] ends approximately 4 in (10 cm) beyond notch. [5] Align notches of spool for the line with groove of eyelets and fit spool cover. 10 Pull out the line [4] from cover.
11 Fit cover and housing together. (1) Align eyelets of cover with recesses of housing. (2) Press pawls of housing into respective [6] window [6] of cover until the pawls are firmly fitted into the windows. Note ● If they are loosely fitted and the cutting head is turned, the cover inside the components can fly off which is dangerous. 5.3.2 Replacement of Cap 1 Push the hole [1] with a thin rod to pull out the cap.
6. Storing When storing the attachment with the hook of the pipe cap attached to the pipe, etc., do not pull or swing the attachment. Wear gloves when handling the cutting head or blade during the replacement, etc. * Otherwise, hands or fingers could be severed by the cutting head or blade. 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.
4 Insert the hanging hook [5] of the pipe cap [4] into the hole of the shaft tube [5] [3]. [3] 5 Insert the pipe cap [4] into the shaft 6 Put on gloves. 7 Clean the attachment. Wipe off the dirt or stain with a cloth, etc. 8 Store the trimmer/brush cutter in the following place. [4] tube [3]. [3] [4] (a) Locked place (b) High place out of reach of children and other unauthorized person (c) Dry and cool dark place 7.
8. Installation of Grass Cutting Steel Blade (Option) The following shows the installation procedure for the grass cutting steel blade (option). Make sure that required parts are all installed properly before attaching the grass cutting steel blade (option). Note ● Grass cutting steel blades, blade caps, nut covers and nuts are separately sold. For purchasing, contact your servicing dealer. ● Be sure to use genuine parts. ● Do not use a saw tooth blade.
6 Remove foreign objects such as grasses and stones gathered in [*] part (as shown in the below figure) of the gear case [5]. Remove the foreign objects. * 7 If the product is used without removing the foreign objects, it could cause a serious injury or damage of the gear case. Align the center hole of the grass cutting steel blade [A] with the boss of the blade holder [6], and install them to the gear case [5]. Align the center hole of the grass cutting steel blade with the boss of the blade holder.
9. Troubleshooting In case of failure, follow the table below. When troubleshooting, stop the engine and then remove the attachment from the powerhead. * If the engine starts during the work, hands or fingers could be severed by the moving parts or cutting head or blade. Situation Output is not enough. Vibration is too large. Blade is dull Possible Cause Throttle cable adjustment is faulty. Refer to the powerhead manual. Engine concern Refer to the powerhead manual.
10. Servicing For repair, handling method or cleaning, contact your servicing dealer. ■ When Requesting Repair If there is any problem, try finding the cause and take measures according to “9. Troubleshooting”. If it does not solve the trouble, contact your servicing dealer. ■ Contact for Repair Contact your servicing dealer for repair. Record serial No. (See “2.5 Position of Model and Serial No.”) in the space below. You will need this model code and serial No.
11. Technical data Model Powerhead Handle Mass (without cutting attachment , guard and powerhead) Length a) (without cutting attachment , and powerhead) Cutting diameter Maximum rotational speed of the spindle UMC425A UMC435A LOOP LOOP lb (kg) 3.1 (1.4) in (mm) 28.5 (725) in (mm) φ16.5 (420) (Cutting-line head) rpm 28.
How to Contact Honda Honda Power Equipment dealership personnel are trained professionals. They should be able to answer any question you may have. If you encounter a problem that your dealer does not solve to your satisfaction, please discuss it with the dealership’s management. The Service Manager or General Manager can help. Almost all problems are solved in this way.
Distributor’s Limited Warranty NIKKARI ATTACHMENTS This warranty is limited to the following Nikkari products when distributed by American Honda Motor Co., Inc., Power Equipment Division, 4900 Marconi Drive, Alpharetta, Georgia 30005.
PRODUCT REGISTRATION Thank you for choosing Honda. To ensure you receive important service information in the event of a product update or recall, please register your trimmer/brush cutter within 30 days of purchase. From time to time, American Honda conducts sales promotion that require you to register your trimmer/ brush cutter within 30 days of purchase. If you purchased your Honda trimmer/brush cutter during one of these promotions, you must register your trimmer/brush cutter within 30 days.
1. Go to www.PowerEquipment.Honda.com to register your unit. 2. Click on Product Registration. 3. Complete the required information and click Submit. It's that simple! NO POSTAGE NECESSARY IF MAILED IN THE UNITED STATES Product Registration BUSINESS REPLY MAIL FIRST-CLASS MAIL PERMIT NO. 117 ALPHARETTA GA POSTAGE WILL BE PAID BY ADDRESSEE Power Equipment Division American Honda Motor Co. Inc.
