DUR187U - Grass trimmer MAKITA - Free user manual and instructions

USER MANUAL DUR187U MAKITA

Model: DUR187U DUR187L DUR188U DUR188L
Type of handle Bike handle Loop handle Bike handle Loop handle
No load speed 4,000/5,000/6,000 min		-1
Overall length(without cutting tool)		1,791 mm
Nylon cord diameter 2.0 - 2.4 mm
Applicable cutting tool andcutting diameter	Nylon cutting head (P/N 123932-5)	300 mm
	Plastic blade (P/N 123954-5) 255	mm
Rated voltage D.C. 18 V
Net weight(when using BL1830B)	with nylon cutting head 3.8 kg 3.6	kg 4.1 kg 3.9 kg
	with plastic blade 3.9 kg 3.6 kg 4	1 kg 3.9 kg
Battery cartridge BL1815N, BL1820, BL1820B, BL1830, BL1830B,		BL1840,BL1840B, BL1850, BL1850B, BL1860B

• Due to our continuing program of research and development, the specifications herein are subject to change without notice.
• Specifications and battery cartridge may differ from country to country.
  Weight, with battery cartridge, according to EPTA-Procedure 01/2003

Noise
Applicable standard: 2000/14/EC

Model	Type	Sound pressure level average	Sound power level average
		LpA(dB(A))	LWA(dB(A))	Uncertainty K (dB(A))
DUR187U	Nylon cutting head	74	84	6.0
	Plastic blade	79	88	0.8
DUR187L	Nylon cutting head	74	84	6.0
	Plastic blade	79	88	0.8
DUR188U	Nylon cutting head	74	84	6.0
	Plastic blade	79	88	0.8
DUR188L	Nylon cutting head	74	84	6.0
	Plastic blade	79	88	0.8

• Even if the sound pressure level listed above is 80dB (A) or less, the level under working may exceed 80dB (A). Wear ear protection.

Vibration
Applicable standard: EN50636-2-91

Model	Type	Left hand		Right hand
		ah,w(m/s2)	Uncertainty K (m/s2)	ah,w(m/s2)	Uncertainty K (m/s2)
DUR187U	Nylon cutting head	≤ 2.5	1.5	≤ 2.5	1.5
	Plastic blade	≤ 2.5	1.5	≤ 2.5	1.5
DUR187L	Nylon cutting head	≤ 2.5	1.5	≤ 2.5	1.5
	Plastic blade	≤ 2.5	1.5	≤ 2.5	1.5
DUR188U	Nylon cutting head	≤ 2.5	1.5	≤ 2.5	1.5
	Plastic blade	≤ 2.5	1.5	≤ 2.5	1.5
DUR188L Nylon cutting head		≤ 2.5	1.5	≤ 2.5	1.5
	Plastic blade	≤ 2.5	1.5	≤ 2.5	1.5

NOTE: The declared vibration emission value has been measured in accordance with the standard test method and may be used for comparing one tool with another.

NOTE: The declared vibration emission value may also be used in a preliminary assessment of exposure.

WARNING: The vibration emission during actual use of the power tool can differ from the declared emission due depending on the ways in which the tool is used.

WARNING: Be sure to identify safety measures to protect the operator that are based on an estimation of exposure in the actual conditions of use (taking account of all parts of the operating cycle such as the times when the tool is switched off and when it is running idle in addition to the trigger time).

Symbols

The following show the symbols used for the equipment. Be sure that you understand their meaning before use.

Take particular care and attention.

Read instruction manual.

Danger; be aware of thrown objects.

The distance between the tool and bystanders must be at least 15m

Keep bystanders away.

Keep distance at least 15m

Wear a helmet, goggles and ear protection.

Wear protective gloves.

Wear sturdy boots with nonslip soles. Steeltoed safety boots are recommended.

Do not expose to moisture.

Top permissible tool speed.

Never use metal blade.

Cd Ni-MH Li-ion

Only for EU countries

Do not dispose of electric equipment or battery pack together with household waste material! In observance of the European Directives, on Waste Electric and Electronic Equipment and Batteries and Accumulators and Waste Batteries and Accumulators and their implementation in accordance with national laws, electric equipment and batteries and battery pack(s) that have reached the end of their life must be collected separately and returned to an environmentally compatible recycling facility.

EC Declaration of Conformity

For European countries only

The EC declaration of conformity is included as Annex A to this instruction manual.

SAFETYWARNINGS

IMPORTANT SAFETY INSTRUCTIONS

WARNING: Read all safety warnings and instructions. Failure to follow the warnings and tractions may result in electric shock, fire and/or iious injury.

Save all warnings and instructions for future reference.

1. Be familiar with the controls and proper use of the equipment.
2. Cutting elements continue to rotate after the motor is switched off.
3. Never allow children or people unfamiliar with the instructions to use the machine.
4. Stop using the machine while people, especially children, or pets are nearby.
5. Only use the machine in daylight or good artificial light.
6. Before using the machine and after any impact, check for signs of wear or damage and repair as necessary.
7. Take care against injury from any device fitted for trimming the filament line length. After extending new cutter line always return the machine to its normal operating position before switching on.
8. Never fit metal cutting elements.

9. This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance.

10. Use the tool with the utmost care and attention.

11. Operate the tool only if you are in good physical condition. Perform all work calmly and carefully. Use common sense and keep in mind that the operator or user is responsible for accidents or hazards occurring to other people or their property.
12. Never operate the tool when tired, feeling ill or under the influence of alcohol or drugs.
13. The tool should be switched off immediately if it shows any signs of unusual operation.

Intended use of the tool

1. Use right tool. The cordless grass trimmer is only intended for cutting grass, light weeds. It should not be used for any other purpose such as hedge cutting as this may cause injury.

Personal protective equipment

Fig.1

Fig.2

1. Dress Properly. The clothing worn should be functional and appropriate, i.e. it should be tight-fitting but not cause hindrance. Do not wear either jewelry or clothing which could become entangled with high grass. Wear protective hair covering to contain long hair.
2. When using the tool, always wear sturdy shoes with a non-slip sole. This protects against injuries and ensures a good footing.
3. Wear protective glasses or goggles.

Electrical and battery safety

1. Avoid dangerous environment. Don't use the tool in damp or wet locations or expose it to rain. Water entering the tool will increase the risk of electric shock.
2. Recharge only with the charger specified by the manufacturer. A charger that is suitable for one type of battery pack may create a risk of fire when used with another battery pack.
3. Use power tools only with specifically designated battery packs. Use of any other battery packs may create a risk of injury and fire.
4. When battery pack is not in use, keep it away from other metal objects, like paper clips, coins, keys, nails, screws or other small metal objects, that can make a connection from one terminal to another. Shorting the battery terminals together may cause burns or a fire.
5. Under abusive conditions, liquid may be ejected from the battery; avoid contact. If contact accidentally occurs, flush with water. If liquid contacts eyes, seek medical help. Liquid ejected from the battery may cause irritation or burns.
6. Do not dispose of the battery(ies) in a fire. The cell may explode. Check with local codes for possible special disposal instructions.
7. Do not open or mutilate the battery(ies). Released electrolyte is corrosive and may cause damage to the eyes or skin. It may be toxic if swallowed.

Starting up the tool

Fig.3

1. Make sure that there are no children or other people within a working range of 15 meters (50 ft), also pay attention to any animals in the working vicinity. Otherwise stop using the tool.
2. Before use always check that the tool is safe for operation. Check the security of the cutting tool and the guard and the switch trigger/lever for easy and proper action. Check for clean and dry handles and test the on/off function of the switch.
3. 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, binding of moving parts, breakage of parts, mounting, and any other condition that may affect its operation. A guard or other part that is damaged should be properly repaired or replaced by our authorized service center unless indicated elsewhere in this manual.
4. Switch on the motor only when hands and feet are away from the cutting tool.
5. Before starting make sure that the cutting tool has no contact with hard objects such as branches, stones etc. as the cutting tool will revolve when starting.

Method of operation

1. Never operate the machine with damaged guards or without the guards in place.
2. Only use the tool in good light and visibility. During the winter season, beware of slippery or wet areas, ice and snow (risk of slipping). Always ensure a safe footing.
3. Take care against injury to feet and hands from the cutting tool.
4. Keep hands and feet away from the cutting means at all times and especially when switching on the motor.
5. Never cut above waist height.
6. Never stand on a ladder and run the tool.
7. Never work on unstable surfaces.
8. Don't overreach. Keep proper footing and balance at all times.
9. Remove sand, stones, nails etc. found within the working range. Foreign particles may damage the cutting tool and can cause to be thrown away, resulting in a serious injury.
10. Should the cutting tool hit stones or other hard objects, immediately switch off the motor and inspect the cutting tool.
11. Before commencing cutting, the cutting tool must have reached full working speed.
12. During operation always hold the tool with both hands. Never hold the tool with one hand during use. Always ensure a safe footing.

13. All protective equipment such as guards supplied with the tool must be used during operation.

14. Except in case of emergency, never drop or cast the tool to the ground or this may severely damage the tool.

15. Never drag the tool on the ground when moving from place to place, the tool may become damaged if moved in this manner.
16. Always remove the battery cartridge from the tool:

whenever leaving the tool unattended;
before clearing a blockage;
before checking, cleaning or working on the tool;
before making any adjustments, changing accessories or storing;
whenever the tool starts vibrating unusually;
whenever transporting the tool.

1. Don't force the tool. It will do the job better and with less likelihood of a risk of injury at the rate for which it was designed.

2. Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Power tools create sparks which may ignite the dust or fumes.

3. Take a rest to prevent loss of control caused by fatigue. We recommend to take a 10 to 20-minute rest every hour.

Maintenance instructions

1. The condition of the cutting tool, protective devices and shoulder strap must be checked before commencing work.
2. Turn off the motor and remove the battery cartridge before carrying out maintenance, replacing the cutting tool and cleaning the tool.
3. After use, disconnect the battery cartridge from the tool and check for damage.
4. Check for loose fasteners and damaged parts such as nearly halfway cut-off state in the cutting tool.
5. When not in use store the equipment in a dry location that is locked up or out of children's reach.
6. Use only the manufacturer's recommended replacement parts and accessories.
7. Always ensure that ventilation openings are kept clear of debris.
8. Inspect and maintain the tool regularly, especially before/after use. Have the tool repaired only by our authorized service center.
9. Keep handles dry, clean and free from oil and grease.

SAVE THESE INSTRUCTIONS.

WARNING: DO NOT let comfort or familiarity with product (gained from repeated use) replace strict adherence to safety rules for the subject product. MISUSE or failure to follow the safety rules stated in this instruction manual may cause serious personal injury.

Important safety instructions for battery cartridge

1. Before using battery cartridge, read all instructions and cautionary markings on (1) battery charger, (2) battery, and (3) product using battery.
2. Do not disassemble battery cartridge.
3. If operating time has become excessively shorter, stop operating immediately. It may result in a risk of overheating, possible burns and even an explosion.

4. If electrolyte gets into your eyes, rinse them out with clear water and seek medical attention right away. It may result in loss of your eyesight.

5. Do not short the battery cartridge:

(1) Do not touch the terminals with any conductive material.
(2) Avoid storing battery cartridge in a container with other metal objects such as nails, coins, etc.
(3) Do not expose battery cartridge to water or rain. A battery short can cause a large current flow, overheating, possible burns and even a breakdown.

1. Do not store the tool and battery cartridge in locations where the temperature may reach or exceed 50^ (122^) .
2. Do not incinerate the battery cartridge even if it is severely damaged or is completely worn out. The battery cartridge can explode in a fire.
3. Be careful not to drop or strike battery.
4. Do not use a damaged battery.
5. The contained lithium-ion batteries are subject to the Dangerous Goods Legislation requirements. For commercial transports e.g. by third parties, forwarding agents, special requirement on packaging and labeling must be observed. For preparation of the item being shipped, consulting an expert for hazardous material is required. Please also observe possibly more detailed national regulations. Tape or mask off open contacts and pack up the battery in such a manner that it cannot move around in the packaging.
6. Follow your local regulations relating to disposal of battery.

SAVE THESE INSTRUCTIONS.

CAUTION: Only use genuine Makita batteries.

Use of non-genuine Makita batteries, or batteries that have been altered, may result in the battery bursting causing fires, personal injury and damage. It will also void the Makita warranty for the Makita tool and charger.

Tips for maintaining maximum battery life

1. Charge the battery cartridge before completely discharged. Always stop tool operation and charge the battery cartridge when you notice less tool power.
2. Never recharge a fully charged battery cartridge. Overcharging shortens the battery service life.
3. Charge the battery cartridge with room temperature at 10^ - 40^ (50°F - 104°F). Let a hot battery cartridge cool down before charging it.
4. Charge the battery cartridge if you do not use it for a long period (more than six months).

PARTS DESCRIPTION

Fig.4

1	Battery cartridge	2	Lock-off lever	3	Switch trigger	4	Hanger
5	Handle 6 Protector (cutting tool)	guard)		7 W wire guard 8 Lock lever			(DUR188U and DUR188L only)
9	Joint cover (DUR188U and DUR188L only)	10 Cap (DUR188U and DUR188L only)		11	Speed indicator	12	Auto speed control indicator
13	Power lamp	14	Main power button	15	Reverse button	16	Shoulder harness

• The shape of the protector varies depending on the country.

FUNCTIONAL DESCRIPTION

WARNING: Always be sure that the tool is switched off and the battery cartridge is removed before adjusting or checking function on the tool. Failure to switch off and remove the battery cartridge may result in serious personal injury from accidental start-up.

Installing or removing battery cartridge

CAUTION: Always switch off the tool before installing or removing of the battery cartridge. CAUTION: Hold the tool and the battery cartridge firmly when installing or removing battery cartridge. Failure to hold the tool and the battery cartridge firmly may cause them to slip off your hand and result in damage to the tool and battery cartridge and a personal injury.

Fig.5: 1. Red indicator 2. Button 3. Battery cartridge

To remove the battery cartridge, slide it from the tool while sliding the button on the front of the cartridge. To install the battery cartridge, align the tongue on the battery cartridge with the groove in the housing and slip it into place. Insert it all the way until it locks in place with a little click. If you can see the red indicator on the upper side of the button, it is not locked completely.

CAUTION: Always install the battery cartridge fully until the red indicator cannot be seen. If not, it may accidentally fall out of the tool, causing injury to you or someone around you.
CAUTION: Do not install the battery cartridge forcibly. If the cartridge does not slide in easily, it is not being inserted correctly.

Tool / battery protection system

The tool is equipped with a tool/battery protection system. This system automatically cuts off power to the motor to extend tool and battery life. The tool will automatically stop during operation if the tool or battery is placed under one of the following conditions:

Status	Indicator lamps
	☐ On	☐ Off	☐ Blinking
Overload
Overheat
Over discharge

Overload protection

If the tool is overloaded by entangled weeds or other debris, and the middle indicators start blinking and the tool automatically stops.

In this situation, turn the tool off and stop the application that caused the tool to become overloaded. Then turn the tool on to restart.

Overheat protection for tool or battery

There are two types of overheating; tool overheating and battery overheating. When the tool over heating occurs, all speed indicators blink. When the battery over heating occurs, indicator blinks.

If the overheating occurs, the tool stops automatically. Let the tool and/or battery cool down before turning the tool on again.

Overdischarge protection

When the battery capacity becomes low, the tool stops automatically and indicator blinks.

If the tool does not operate even when the switches are operated, remove the batteries from the tool and charge the batteries.

Indicating the remaining battery capacity

Only for battery cartridges with the indicator

Fig.6: 1. Indicator lamps 2. Check button

Press the check button on the battery cartridge to indicate the remaining battery capacity. The indicator lamps light up for few seconds.

Indicator lamps Remaining			capacity
Lighted Off	Blinking
			75% to 100%
			50% to 75%
			25% to 50%
			0% to 25%
			Charge the battery.
			The battery may have malfunctioned.

NOTE: Depending on the conditions of use and the ambient temperature, the indication may differ slightly from the actual capacity.

Power switch action

WARNING: Before installing the battery cartridge on the tool, always check to see that the switch trigger actuates properly and returns to the "OFF" position when released. Operating a tool with a switch that does not actuate properly can lead to loss of control and serious personal injury.

CAUTION: Never put your finger on the switch when carrying. The tool may start unintentionally and cause injury.

Press and hold the main power button for some seconds to turn on the tool.

To turn off the tool, press and hold the main power button again.

Fig.7: 1. Main power button

To prevent the switch trigger from being accidentally pulled, a lock-off lever is provided.

To start the tool, grasp the handle (the lock-off lever is released by the grasp) and then pull the switch trigger. To stop the tool, release the switch trigger.

DUR187U and DUR188U

Fig.8: 1. Lock-off lever 2. Switch trigger

DUR187L and DUR188L

Fig.9: 1. Lock-off lever 2. Switch trigger

NOTE: The tool is automatically turned off after the tool is left one minute without any operations.

Speed adjusting

You can adjust the tool speed by tapping the main power button.

Each time you tap the main power button, the level of speed will change.

Fig.10: 1. Main power button

Indicator Mode	Rotation speed
A	Auto 4,000 -	6,000 min -1
	High 6,000 min	-1
	Medium 5,000 min	-1
	Low 4,000 min	-1

Reverse button for debris removal

WARNING: Switch off the tool and remove the battery cartridge before you remove entangled weeds or debris which the reverse rotation function can not remove. Failure to switch off and remove the battery cartridge may result in serious personal injury from accidental start-up.

This tool has a reverse button to change the direction of rotation. It is only for removing weeds and debris entangled in the tool.

To reverse the rotation, tap the reverse button and pull the trigger when the tool's head is stopped. The power lamp starts blinking, and the tool's head rotates in reverse direction when you pull the switch trigger.

To return to regular rotation, release the trigger and wait until the tool's head stops.

Fig.11: 1. Reverse button

NOTE: During the reverse rotation, the tool operates only for a short period of time and then automatically stops.

NOTE: Once the tool is stopped, the rotation returns to regular direction when you start the tool again.

NOTE: If you tap the reverse button while the tool's head is still rotating, the tool comes to stop and to be ready for reverse rotation.

Nylon cutting head

Optional accessory

NOTICE: The bump feed will not operate properly if the head is not rotating.

Fig.12: 1. Most effective cutting area

The nylon cutting head is a dual string trimmer head provided with a bump & feed mechanism.

To feed out the nylon cord, tap the cutting head against the ground while rotating.

NOTE: If the nylon cord does not feed out while tapping the head, rewind/replace the nylon cord by following the procedures described under "Maintenance".

ASSEMBLY

WARNING: Always be sure that the tool is switched off and battery cartridge is removed before carrying out any work on the tool. Failure to switch off and remove the battery cartridge may result in serious personal injury from accidental start-up.
WARNING: Never start the tool unless it is completely assembled. Operation of the tool in a partially assembled state may result in serious personal injury from accidental start-up.

Installing the handle

For DUR187U and DUR188U only

1. Insert the shaft of the handle into the grip. Align the screw hole in the grip with the one in the shaft. Tighten the screw securely.
   Fig.13: 1. Grip 2. Screw 3. Handle
2. Place handle between handle clamp and handle holder. Adjust the handle to an angle that provides a comfortable working position and then secure with hex socket head bolts.
   Fig.14: 1. Hex socket head bolt 2. Handle clamp

Mounting the attachment pipe

For DUR188U and DUR188L only

Mount the attachment pipe to the power unit.

1. Turn the lever to the direction of the arrow shown in the figure.
   Fig.15: 1.Lever
2. Pull up the joint cover and insert the attachment pipe while aligning the protrusion on the pipe (cutting tool side) with the concave portion of the joint part.

Fig.16: 1. Lock lever 2. Joint cover 3. Pipe

Make sure that the surface of the lock lever is parallel to the pipe.

1. Turn the lever to the direction of the arrow shown in the figure.
   Fig.17: 1.Lever

To remove the pipe, turn the lever to the direction of the arrow shown in the figure and pull the pipe out while pressing down the lock lever.

Fig.18: 1. Lever 2. Lock lever 3. Pipe

Installing the guard

WARNING: Never use the tool without the guard illustrated in place. Failure to do so can cause serious personal injury.
CAUTION: Take care not to injure yourself on the cutter for cutting the nylon cord.

NOTE: The shape of the protector varies depending on the country.

1. Align the projections on the protector with the grooves of the motor housing.
   Fig.19: 1. Protector 2. Groove 3. Projection

2. Align the projections on the protector holder with its counter parts of the motor housing.
   Fig.20: 1. Protector holder 2. Projection

3. Tighten the hex socket head bolts securely to fasten the protector and the protector holder.
   ▶ Fig.21: 1. Hex socket head bolt 2. Hex wrench

Installing the wire guard

CAUTION: Before adjusting the wire guard, wait for the cutting head comes to standstill. Do not adjust the wire guard with your foot.

Fig.22
To reduce the risk damaging the objects in front of the cutting head, insert the wire guard so that it controls the cutting range of the mowing line.
Slightly expand the wire guard outward and then insert it into the holes of the protector.
Fig.23: 1. Wire guard

NOTE: Do not expand the wire guard outward too much. Otherwise it may break.

When wire guard is not in use, lift it for the idle position.
Fig.24

Installing nylon cutting head

Optional accessory

CAUTION: If the nylon cutting head accidentally impacts a rock or hard object during operation, stop the tool and inspect for any damage. If the nylon cutting head is damaged, replace it immediately. Use of a damaged cutting tool could result in serious personal injury.
CAUTION: Make sure to remove the hex wrench after installation.

NOTICE: Be sure to use genuine Makita nylon cutting head.

Fig.25: 1. Nylon cutting head 2. Metal guard
3. Spindle 4. Hex wrench

1. Turn the tool upside down so that you can replace the cutting tool easily.

2. Insert the hex wrench through the hole on the motor housing and rotate the spindle until the spindle is locked.

3. Place the nylon cutting head onto the threaded spindle directly and tighten it by turning it counterclockwise.
4. Remove the hex wrench.

To remove the nylon cutting head, turn it clockwise while holding the receive washer with the hex wrench.

Installing plastic blade

Optional accessory

CAUTION: If the plastic blade accidentally impacts a rock or hard object during operation, stop the tool and inspect for any damage. If the plastic blade is damaged, replace it immediately. Use of a damaged cutting tool could result in serious personal injury.
CAUTION: Make sure to remove the hex wrench after installation.

NOTICE: Be sure to use genuine Makita plastic blade.

Fig.26: 1. Plastic blade 2. Metal guard 3. Hex wrench

1. Turn the tool upside down so that you can replace the cutting tool easily.
2. Insert the hex wrench through the hole on the motor housing and rotate the spindle until the spindle is locked.
3. Place the plastic blade onto the threaded spindle directly and tighten it by turning it counterclockwise.
4. Remove the hex wrench.

To remove the plastic blade, turn it clockwise while holding the receive washer with the hex wrench.

Adjusting the handle/hanger position

Adjust the handle and hanger position to obtain comfortable handling of the tool.

For DUR187U and DUR188U

Loosen the hex socket head bolts on the bottom of the handle holder. Move the handle to a comfortable working position and then tighten the bolts.

▶ Fig.27: 1. Handle holder 2. Hex socket head bolt 3. Handle

Loosen the Hex socket head bolts on the hanger. Move the hanger to a comfortable working position and then tighten the bolts.

▶ Fig.28: 1. Hex socket head bolt 2. Hanger

For DUR187L and DUR188L

Loosen the hex socket head bolts on the handle. Move the handle to a comfortable working position and then tighten the bolts.
▶ Fig.29: 1. Hex socket head bolt 2. Handle
Loosen the hex socket head bolt on the hanger. Move the hanger to a comfortable working position and then tighten the bolt.
Fig.30: 1. Hex socket head bolt 2. Hanger

Hex wrench storage

CAUTION: Be careful not to leave the hex wrench inserted in the tool head. It may cause injury and/or damage to the tool.

When not in use, store the hex wrench as shown in the figure to keep it from being lost.

Fig.31: 1. Hex wrench

For DUR187L and DUR188L only
Fig.32: 1. Handle 2. Hex wrench

OPERATION

Correct handling of tool

WARNING: Always position the tool on your right-hand side. Correct positioning of the tool allows for maximum control and will reduce the risk of serious personal injury caused by kickback.
WARNING: Be extremely careful to maintain control of the tool at all times. Do not allow the tool to be deflected toward you or anyone in the work vicinity. Failure to keep control of the tool could result in serious injury to the bystander and the operator.
WARNING: To avoid accident, leave more than 15m (50 ft) distance between operators when two or more operators work in one area. Also, arrange a person to observe the distance between operators. If someone or an animal enter the working area, immediately stop the operation.

DUR187U and DUR188U
Fig.33
DUR187L and DUR188L
Fig.34

Attachment of shoulder harness

CAUTION: Always use the shoulder harness attached. Before operation, adjust the shoulder harness according to the user size to prevent fatigue.

Connect the hook of the shoulder harness to the hanger and put the shoulder harness on. Make sure that the tool is held securely by the shoulder harness.

DUR187U and DUR188U

Fig.35: 1.Hook 2.Hanger
DUR187L and DUR188L
Fig.36: 1. Hook 2. Hanger

Detachment

The shoulder harness features a means of quick release.

DUR187U and DUR188U

Fig.37: 1. Strip

Pull out the strip release the tool from the shoulder harness.

DUR187L and DUR188L

Fig.38: 1. Buckle

Simply squeeze the sides of the buckle to release the tool from the shoulder harness.

MAINTENANCE

WARNING: Always be sure that the tool is switched off and battery cartridge is removed before attempting to perform inspection or maintenance on the tool. Failure to switch off and remove the battery cartridge may result in serious personal injury from accidental start-up.

NOTICE: Never use gasoline, benzine, thinner, alcohol or the like. Discoloration, deformation or cracks may result.

Replacing the nylon cord

WARNING: Use nylon cord with diameter specified in "SPECIFICATIONS" only. Never use heavier line, metal wire, rope or the like. Use recommended nylon cord only, otherwise it may cause damage to the tool and result in serious personal injury.
WARNING: Make sure that the cover of the nylon cutting head is secured to the housing properly as described below. Failure to properly secure the cover may cause the nylon cutting head to fly apart resulting in serious personal injury.

1. Press on the housing latches inward to lift off the cover, then remove the spool.
   Fig.39: 1. Latch 2. Cover
2. Prepare approximately 3m (9 ft) of new nylon cord. Fold the new nylon cord with one end become approximately 80mm (3-1/8") longer than the other end. Then hook the new nylon cord into the notch in the center of the spool.
   Wind both ends firmly around the spool in the direction of the head rotation (left-hand direction indicated by LH on the side of the spool).
   Fig.40: 1. Spool

3. Wind all but about 100mm (3 - 15/16") of the cords, leaving the ends temporarily hooked through a notch on the side of the spool.
   Fig.41

4. Mount the spool in the housing so that the grooves and protrusions on the spool match up with those in the housing. Keep the side with letters on the spool visible on the top. Now, unhook the ends of the cord from their temporary position and feed the cords through the eyelets to come out of the housing.
   Fig.42: 1. Spool 2. Housing 3. Eyelet

5. Align the protrusion on the underside of the cover with the slots of the eyelets. Then push the cover firmly onto the housing to secure it.
   Fig.43

Replacing the plastic blade

Replace the blade if it is worn out or broken.
Fig.44

When installing the plastic blade, align the direction of the arrow on the blade with that of the protector.
Fig.45: 1. Arrow on the protector 2. Arrow on the blade

To maintain product SAFETY and RELIABILITY, repairs, any other maintenance or adjustment should be performed by Makita Authorized or Factory Service Centers, always using Makita replacement parts.

TROUBLESHOOTING

Before asking for repairs, conduct your own inspection first. If you find a problem that is not explained in the manual, do not attempt to dismantle the tool. Instead, ask Makita Authorized Service Centers, always using Makita replacement parts for repairs.

State of abnormality Probable cause	(malfunction) Remedy
Motor does not run. Battery cartridge is	not installed. Install the battery cartridge.
	Battery problem (under voltage) Recharge	the battery. If recharging is not effective, replace battery.
	The drive system does not work correctly.	Ask your local authorized service center for repair.
Motor stops running after a little use.	Battery's charge level is low.	Recharge the battery. If recharging is not effective, replace battery.
	Overheating. Stop using of tool to allow it to cool down.
It does not reach maximum RPM.	Battery is installed improperly.	Install the battery cartridge as described in this manual.
	Battery power is dropping. Recharge the battery. If recharging is not effective, replace battery.
	The drive system does not work correctly.	Ask your local authorized service center for repair.
Cutting tool does not rotate: → stop the machine immediately!	Foreign object such as a branch is jammed between the guard and the nylon cutting head.	Remove the foreign object.
	The drive system does not work correctly.	Ask your local authorized service center for repair.
Abnormal vibration: → stop the machine immediately!	One end of the nylon cord has been broken.	Tap the nylon cutting head against the ground while it is rotating to cause the cord to feed.
	The drive system does not work correctly.	Ask your local authorized service center for repair.
Cutting tool and motor cannot stop: → Remove the battery immediately!	Electric or electronic malfunction. Remove the battery and ask your local authorized service center for repair.

OPTIONAL ACCESSORIES

WARNING: Do not mount a metal blade on this tool and only use the recommended accessories or attachments indicated in this manual. The use of a metal blade or any other accessory or attachment may result in serious personal injury.
CAUTION: These accessories or attachments are recommended for use with your Makita tool specified in this manual. The use of any other accessories or attachments might present a risk of injury to persons. Only use accessory or attachment for its stated purpose.

If you need any assistance for more details regarding these accessories, ask your local Makita Service Center.

Nylon cutting head
Nylon cord (cutting line)
Plastic blade
- Makita genuine battery and charger

NOTE: Some items in the list may be included in the tool package as standard accessories. They may differ from country to country.

SPECIFICATIONS

Bruit
Norme applicable: 2000/14/EC

Vibration
Norme applicable: EN50636-2-91

ACCESSIONS EN OPTION