Hitachi CH 22ECP2, CH 22EAP2, CH 22EBP2 User Manual

Designed for operating in USA & Canada only.

When this product is used in areas other than the USA & Canada, we cannot guarantee the product quality and performance.

Model

Modèle

Modelo

CH 22EAP2 (50ST)/CH 22EBP2 (62ST) CH 22ECP2 (62ST)/CH 22ECP2 (78ST)

Hedge Trimmer

Taille-Haies

Cortasetos

CH22ECP2(62ST)

SAFETY INSTRUCTIONS AND INSTRUCTION MANUAL

WARNING

IMPROPER OR UNSAFE use of this power tool can result in death or serious bodily injury!

This manual contains important information about product safety. Please read and understand this manual BEFORE operating the power tool. Please keep this manual available for other users and owners before they use the power tool. This manual should be stored in safe place.

INSTRUCTIONS DE SECURITE ET MODE D’EMPLOI

AVERTISSEMENT

Une utilisation INCORRECTE OU DANGEREUSE de cet outil motorisé peut entraîner la mort ou de sérieuses blessures corporelles !

Ce mode d’emploi contient d’importantes informations à propos de la sécurité de ce produit. Prière de lire et de comprendre ce mode d’emploi AVANT d’utiliser l’outil motorisé. Garder ce mode d’emploi à la disponibilité des autres utilisateurs et propriétaires avant qu’ils utilisent l’outil motorisé. Ce mode d’emploi doit être conservé dans un endroit sûr.

INSTRUCCIONES DE SEGURIDAD Y MANUAL DE INSTRUCCIONES

ADVERTENCIA

¡La utilización INAPROPIADA O PELIGROSA de esta herramienta eléctrica puede provocar lesiones graves o la muerte!

Este manual contiene información importante sobre la seguridad del producto. Lea y comprenda este manual ANTES de utilizar la herramienta eléctrica. Guarde este manual para que puedan leerlo otras personas antes de utilizar la herramienta eléctrica. Este manual debe ser guardado en un lugar seguro.

English

MEANINGS OF SYMBOLS

NOTE: Some units do not carry them.

Symbols

WARNING

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

It is important that you read, fully
understand and observe the following		O /Stop
safety precautions and warnings.
Careless or improper use of the unit may
cause serious or fatal injury.
Read, understand and follow all warnings		Emergency stop
and instructions in this manual and on the
unit.
Always wear eye, head and ear protectors		Fuel and oil mixture
when using this unit.
Choke - Run position (Open)		Hot surface
Choke - Choked position (Closed)		Before using your machine
		• Read the manual carefully.
		• Check that the cutting equipment is
On/Start		correctly assembled and adjusted.
		• Start the unit and check the carburetor
		adjustment. See “MAINTENANCE”.
Contents	3
WHAT IS WHAT? ...................................................
WARNINGS AND SAFETY INSTRUCTIONS.........	4
SPECIFICATIONS..................................................	6
OPERATING PROCEDURES.................................	6
MAINTENANCE .....................................................	8
TROUBLESHOOTING..........................................	11

2

							English
WHAT IS WHAT?			1		16		5
		11					8
Since this manual covers several models, there may							12
be some di erence between these illustrations and		3
your unit. Use the instructions that apply to your unit.		6
1.	Recoil starter						9
2.	Fuel tank
3.	Throttle lever lockout					10	14
4.	Throttle lever	4		15	2
5.	Front handle
6.	Rear handle		7
7.	Spark plug
8.	Hand guard
9.	Cutting blade
10.	Air cleaner
11.	Stop switch
12.	Blade guide					13
13.	Gear case
14.	Choke lever	CH22EAP2 (50ST), CH22EBP2 (62ST)
15.	Lock lever
16.	Priming pump	CH22ECP2 (62ST), CH22ECP2 (78ST)
17.	Blade case						19
18.	Combi box spanner				18
19.	Handling instructions
		17

3

English

WARNINGS AND SAFETY

INSTRUCTIONS

WARNING

The engine exhaust from this product contains chemical known to the State of California to cause cancer, birth defects or other reproductive harm.

Keep for future reference.

THIS HEDGE TRIMMER CAN CAUSE SERIOUS INJURIES. Read the instructions carefully for the correct handling, preparation, maintenance, starting and stopping of the hedge trimmer. Become familiar with all controls and the proper use of the hedge trimmer.

Operator safety

○Always wear a safety face shield or goggles.

○Always wear heavy, long pants, boots and gloves. Do not wear loose clothing, jewelry, short pants, sandals or go barefoot. Secure hair so it is above shoulder length.

○ Do not operate		this tool	when you	are tired,
ill or under	the	influence	of alcohol,	drugs or
medication.

○Never let a child or inexperienced person operate the machine.

○Beware of overhead power lines.

○Wear hearing protection.

○Never start or run the engine inside a closed room or building. Breathing exhaust fumes can kill.

○Keep handles free of oil and fuel.

○Keep hands away from cutting equipment.

○Do not grab or hold the unit by the cutting equipment.

○When the unit is turned o , make sure the cutting attachment has stopped before the unit is set down.

○When operation is prolonged, take a break from time to time so that you may avoid possible Hand-Arm Vibration Syndrome (HAVS) which is caused by vibration.

○If the cutting mechanism strikes any foreign object or the hedge trimmer starts making any unusual noise or vibration, shut o the power source and allow the hedge trimmer to stop. Disconnect the spark plug wire from the spark plug and take the following steps:

•Inspect for damage;

•Check for, and tighten, any loose parts;

•Have any damaged parts replaced or repaired with parts having equivalent specifications.

WARNING

●Antivibration systems do not guarantee that you will not sustain Hand-Arm Vibration Syndrome or carpal tunnel syndrome. Therefore, continual and regular users should monitor closely the condition of their hands and fingers. If any symptoms of the above appear, seek medical advice immediately.

●If you are using any medical electric/ electronic devices such as a pacemaker, consult your physician as well as the device manufacturer prior to operating any power equipment.

●When a foreign object is caught in the blade, turn o the engine, and remove the foreign object carefully using a plier etc., after the hedge trimmer has been cooled down. Be careful when removing the foreign object, since the blade may move because of the backlash.

Unit/machine safety

○Inspect the entire unit/machine before each use. Replace damaged parts. Check for fuel leaks and make sure all fasteners are in place and securely tightened.

○Replace parts that are cracked, chipped or damaged in any way before using the unit/machine.

○Keep others away when making carburetor adjustments.

○Use only accessories as recommended for this unit/machine by the manufacturer.

WARNING

Never modify the unit/machine in any way. Do not use your unit/machine for any job except that for which it is intended.

Fuel safety

○Mix and pour fuel outdoors and where there are no sparks or flames.

○Use a container approved for fuel.

○Never remove the fuel cap or add fuel with the power source running. Allow engine and exhaust components to cool down before refuelling.

○Do not smoke or allow smoking near fuel or the unit/machine or while using the unit/machine.

○Never refuel indoors.

○Wipe up all fuel spills before starting engine.

○Move at least 3 m away from fueling site before starting engine.

○Stop engine before removing fuel cap.

○Empty the fuel tank before storing the unit/ machine. It is recommended that the fuel be emptied after each use. If fuel is left in the tank, store so fuel will not leak.

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○Store unit/machine and fuel in area where fuel vapors cannot reach sparks or open flames from water heaters, electric motors or switches, furnaces, etc.

WARNING

Fuel is easy to ignite or get explosion or inhale fumes, so that pay special attention when handling or filling fuel.

Cutting safety

○Do not cut any material other than plant hedge.

○Inspect the area to be cut before each use. Remove objects which can be thrown or become entangled.

○For respiratory protection, wear an aerosol protection mask when cutting the grass after insecticide is scattered.

○Keep others including children, animals, bystanders and helpers outside the 15 m hazard zone. Stop the engine immediately if you are approached.

○Hold the unit/machine firmly with both hands.

○Keep firm footing and balance. Do not overreach.

○Keep all parts of your body away from the mu er and cutting attachment when the engine is running.

○Keep cutting tool below shoulder level. NEVER operate unit from a ladder, while in a tree or from any unstable support.

○When relocating to a new work area, be sure to shut o the machine and ensure that all cutting attachments are stopped.

○Never place the machine on the ground when running.

○Always carry a first-aid kit when operating any power equipment.

○Never start or run the engine inside a closed room or building and/or near the inflammable liquid. Breathing exhaust fumes can kill.

Maintenance safety

○Maintain the unit/machine according to recommended procedures.

○Disconnect the spark plug before performing maintenance except for carburetor adjustments.

○Keep others away when making carburetor adjustments.

○Use only genuine Hitachi replacement parts as recommended by the manufacturer.

○When the hedge trimmer is stopped for servicing, inspection or storage, shut o the power source, disconnect the spark plug wire from the spark plug and make sure all moving parts have come to a stop.

English

Allow the hedge trimmer to cool before making any inspection, adjustment, etc.

Transport and storage

○Carry the unit/machine by hand with the engine stopped and the mu er away from your body.

○Allow the engine to cool, empty the fuel tank, and secure the unit/machine before storing or transporting in a vehicle.

○Empty the fuel tank before storing the unit/ machine. It is recommended that the fuel be emptied after each use. If fuel is left in the tank, store so fuel will not leak.

○Store unit/machine out of the reach of children.

○Clean and maintenance the unit carefully and store it in a dry place.

○Make sure engine switch is o when transporting or storing.

○When transporting in a vehicle or storage, cover blade with blade cover.

If situations occur which are not covered in this manual, take care and use common sense. Contact your Hitachi dealer if you need assistance. Pay special attention to statements preceded by the following words:

WARNING

Indicates a strong possibility of severe personal injury or loss of life, if instructions are not followed.

CAUTION

Indicates a possibility of personal injury or equipment damage, if instructions are not followed.

NOTE

Helpful information for correct function and use.

CAUTION

Do not disassemble the recoil starter. You may get a possibility of personal injury with recoil spring.

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English

SPECIFICATIONS

MODEL CH22EAP2 (50ST) CH22EBP2 (62ST) CH22ECP2 (62ST) CH22ECP2 (78ST)

Engine Size (cu. in.)			1.34 (21.1 ml)
Spark Plug			Champion CJ 6
Fuel Tank Capacity (fl. oz)			10.1 (0.30 l)
Dry Weight (lbs)		9.5 (4.3 kg)	10.4 (4.7 kg)		11.0 (5.0 kg)	11.5 (5.2 kg)
Overall blade length (in.)		19.7 (500 mm)	24.4 (620 mm)		24.4 (620 mm)	30.7 (780 mm)
Blade type			Double		-sided
Sound pressure level				97
	LpA (dB(A)) (ISO 10517)
Sound power level
	Lw measured (dB (A))			102
	(2000/14/EC, ISO 10517)
	LwA (dB (A))			104
Vibration level (m/s2)
(ISO 10517)		7.0	9.1		2.8	2.8
	Front handle
	Rear handl	7.5	9.1		3.4	2.8

NOTE

Equivalent noise level/vibration level are calculated as the time-weighted energy total for noise/vibration levels under various working conditions with the following time distribution: ISO 10517.....1/5 idle, 4/5 racing. 2000/14/EC.....only racing.

* All data is subject to change without notice.

OPERATING PROCEDURES

Fuel (Fig. 1)

WARNING

The hedge trimmer is equipped with a twostroke engine. Always run the engine on fuel, mixed with oil.

Provide good ventilation, when fueling or handling fuel.

Fuel

○Always use branded 89 octane unleaded gasoline.

○Use genuine two-cycle oil or use a mix between 25:1 to 50:1, please consult the oil bottle for the ratio or Hitachi dealer.

○Only for the state of California at 50:1.

○If genuine oil is not available, use an anti-oxidant added quality oil expressly labeled for air-cooled 2-cycle engine use (JASO FC GRADE OIL or ISO EGC GRADE). Do not use BIA or TCW (2-stroke water-cooling type) mixed oil.

○Never use multi-grade oil (10W/30) or waste oil.

○Always mix fuel and oil in a separate clean container.

Always start by filling half the amount of fuel, which is to be used. Then add the whole amount of oil. Mix (shake) the fuel mixture. Add the remaining amount of fuel.

Mix (shake) the fuel-mix thoroughly before filling the fuel tank.

B

A

Fig. 1

Fueling

WARNING (Fig. 2)

●Always shut o the engine before refueling.

●Slowly open the fuel tank (1), when filling up with fuel, so that possible over-pressure disappears.

●Tighten the fuel cap carefully, after fueling.

●Always move the unit at least 10 ft (3 m) from the fueling area before starting.

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1

Fig. 2

Before fueling, clean the tank cap area carefully, to ensure that no dirt falls into the tank. Make sure that the fuel is well mixed by shaking the container, before fueling.

Starting

CAUTION

Before starting, make sure the cutting attachment does not touch anything.

1. Set stop switch (2) to ON position (A). (Fig. 3) 2

3

A

Fig. 3

*Push priming pump (4) several times so that fuel flows through the pump or return pipe. (Fig. 4)

4

Fig. 4

English

2.Set choke lever (5) to CLOSED position (B). (Fig. 5)

C	B

5

Fig. 5

3.Pull recoil starter briskly, taking care to keep the handle in your grasp and not allowing it to snap back. (Fig. 6)

Fig. 6

4.When you hear the engine attempts to start, return choke lever to RUN position (open) (C). Then pull recoil starter briskly again.

NOTE

If engine does not start, repeat procedures from 2 to 3.

5.After starting engine, allow the engine about 2-3 minutes to warm up before subjecting it to any load.

Cutting

When cutting, operate engine at full throttle as this maintains proper blade speed. When trimming top of hedge, hold trimmer so blades are between 15 and 30 degrees from a horizontal position and swing trimmer in an arc toward edge of hedge to sweep cuttings o . When trimming sides of hedge, hold blade vertically and swing unit in an arc.

NOTE

○Multi-position twist handle (Fig. 7)

The rear control handle turns 90 degrees to provide comfortable use while accommodating a variety of cutting angles. The handle allows for five di erent locking positions. Before attempting to adjust rear handle, make sure the machine is at idle or engine is shut o .

7

English

○The throttle lever cannot be engaged if the handle is not secured (the lock lever is pressed).

To rotate the handle; push the lock lever (6) allowing the handle to turn. Rotate the handle to the desired 0°, 45° or 90° locking position and release the lock lever (6) to lock the handle in place.

D:LOCK

E:UNLOCK

6 E D

Fig. 7

Stopping (Fig. 8)

Decrease engine speed, and push stop switch to stop position (F).

2

F

Fig. 8

NOTE

If the engine does not stop, it can be forced to stop by rotating the choke lever to the choked position. Before restarting the engine, ask Hitachi Authorized Service Centers for repairs.

MAINTENANCE

MAINTENANCE, REPLACEMENT OR REPAIR OF THE EMISSION CONTROL DEVICES AND SYSTEM MAY BE PERFORMED BY ANY NONROAD ENGINE REPAIR ESTABLISHMENT OR INDIVIDUAL.

Carburetor adjustment (Fig. 9) WARNING

●The cutting attachment may be spinning during carburetor adjustments.

●Never start the engine without the complete clutch cover. Otherwise the clutch can come loose and cause personal injuries.

In the carburetor, fuel is mixed with air. When the engine is test run at the factory, the carburetor is adjusted. A further adjustment may be required, according to climate and altitude. The carburetor has one adjustment possibility:

T = Idle speed adjustment screw.

T

Fig. 9

Idle speed adjustment (T)

Check that the air filter is clean. When the idle speed is correct, the cutting attachment will not rotate. If adjustment is required, close (clockwise) the T-screw, with the engine running, until the cutting attachment starts to rotate. Open (counter-clockwise) the screw until the cutting attachment stops. You have reached the correct idle speed when the engine runs smoothly in all positions well below the rpm when the cutting attachment starts to rotate.

If the cutting attachment still rotates after idle speed adjustment, contact Hitachi dealer.

Air filter (Fig. 10)

The air filter must be cleaned from dust and dirt in order to avoid:

○Carburetor malfunctions.

○Starting problems.

○Engine power reduction.

○Unnecessary wear on the engine parts.

○Abnormal fuel consumption.

Clean the air filter daily or more often if working in exceptionally dusty areas.

Fig. 10

Cleaning the air filter

Remove the cleaner cover and the filter. Rinse it in warm soap suds. Check that the filter is dry before reassembly. An air filter that has been used for some

8

time cannot be cleaned completely. Therefore, it must regularly be replaced by a new one. A damaged filter must always be replaced.

NOTE

Saturate the element in 2-cycle oil or the equivalent. Squeeze the element to distribute the oil completely and to remove any excess oil.

Spark plug (Fig. 11)

The spark plug condition is influenced by:

○An incorrect carburetor setting.

○Wrong fuel mixture (too much oil in the gasoline).

○A dirty air filter.

○Hard running conditions (such as cold weather).

These factors cause deposits on the spark plug electrodes, which may result in malfunction and starting di culties. If the engine is low on power, di cult to start or runs poorly at idling speed, always check the spark plug first. If the spark plug is dirty, clean it and check the electrode gap. Readjust if necessary. The correct gap is 0.024״ (0.6 mm). The spark plug should be replaced after about 100 operation hours or earlier if the electrodes are badly eroded.

0.024״ (0.6 mm)

Fig. 11

NOTE

In some areas, local law requires using a resistor spark plug to suppress ignition signals. If this machine was originally equipped with resistor spark plug, use the same type of spark plug for replacement.

Cutting blade (Fig. 12)

The blades are installed to the blade guide with the four, five or six bolts. Those bolts are tightened with a clearance so that the blades can move smoothly.

English

When clearance is too small

The blades do not move properly and the sliding surfaces may seize.

When clearance is too large

The blades are poor in sharpness.

To adjust the blade clearance

1.Loosen the blade fixing nuts.

2.Fully tighten the blade fixing bolts and then loosen them approx. 5/8 turn.

3.With the bolts set at that position, tighten the blade fixing nuts.

Be sure to replace blade guide fixing bolts when they are loosened, worn or damaged. Also be sure to replace damaged cutter blade.

Lubricating the blade (Fig. 13)

During trimming, sap adhering to the blade edge will increase load.

Use machine oil (or bicycle oil or the like) to lubricate the blade and wipe the blade with a cloth. To prevent the blade from rusting, be sure to lubricate the blade after use and when it will not be used for an extended period of time before placing it in the blade case.

Fig. 13

Gear case (Fig. 14)

Apply a good quality lithium based grease through the grease fitting until a small amount comes out between the cutting blades and the gear case. Lubricate the grease from the grease nipple (indicated by an arrow) next to the gear case using a commercially available cartridge grease gun.

Fig. 14

Fig. 12

9

English

NOTE

Lubrication should be applied 3g at 20 hour intervals and more frequently with heavy use.

Fuel filter (Fig. 15)

Remove the fuel filter from the fuel tank and thoroughly wash it in solvent. After that, push the filter into the tank completely.

Fig. 15

NOTE

If the filter is hard due to dust and dirt, replace it.

Cleaning the cylinder fins (Fig. 16)

When leaves get caught between cylinder fins (7), the engine may overheat, resulting in lower output. To avoid this, always keep cylinder fins and cylinder cover clean.

Every 100 operating hours, or once a year (more often if conditions require), clean fins and external surfaces of engine of dust, dirt and oil deposits which can contribute to improper cooling.

7

Fig. 16

Cleaning the mu er (Fig. 17)

Remove the mu er and spark arrestor (if so equipped), and clean out any excess carbon from the exhaust port or mu er inlet every 100 hours of operation.

Fig. 17

For long-term storage

Drain all fuel from the fuel tank. Start and let engine run until it stops. Repair any damage which has resulted from use. Clean the unit with a clean rag, or high pressure air hose. Put a few drops of twocycle engine oil into the cylinder through the spark plug hole, and spin the engine over several times to distribute oil. Cover the unit and store it in a dry area.

Maintenance schedule

Below you will find some general maintenance instructions. For further information please contact your Hitachi dealer.

Daily maintenance

○Clean the exterior of the hedge trimmer.

○Check the blade guide for damage or cracks. Change the guard in case of impacts or cracks.

○Check that the blade is sharp, and without cracks.

○Check that the blade nut is su ciently tightened.

○Make sure that the blade blunt guard is undamaged and that it can be securely fitted.

○Check that nuts and screws are su ciently tightened.

Weekly maintenance

○Check the starter, especially cord and return spring.

○Clean the exterior of the spark plug.

○Remove it and check the electrode gap. Adjust it to 0.024״ (0.6 mm), or change the spark plug.

○Clean the cooling fins on the cylinder and check that the air intake at the starter is not clogged.

○Check gear case is filled with grease.

○Clean the air filter.

Monthly maintenance

○Rinse the fuel tank with gasoline.

○Clean the exterior of the carburetor and the space around it.

○Clean the fan and the space around it.

10

English

TROUBLESHOOTING

Use the inspections in the table below if the tool does not operate normally. If this does not remedy the problem, consult your dealer or the Hitachi Authorized Service Center.

	Symptom	Possible cause	Remedy
Tool	Does not operate.	Foreign matter is lodged in the	When there is foreign matter in
		blade.	the blade, use a pair of tongs or
			similar tool to remove it.
			Take great care since the
			tool may start operating when
			the foreign matter has been
			removed.
			Sap or rust may also prevent the
			blade from operating. Use a wire
			brush or similar tool to remove
			sap or rust.
	The tool does not trim	The blade stopped because it	Some garden trees have wood
	well.	was used to cut a branch whose	that is very hard and may be
		width exceeded the blade’s	beyond the capacity of the tool
		cutting capacity.	even if it is of a width that is
		NOTE	within normal capacity. Use a
			pair of pruning shear to remove
		Work that will repeatedly	thick branches before starting
		cause the blade to stop will	work.
		eventually damage the tool.	An oblique cut may also exceed
			the capacity of the tool since the
			length of the cut increases. Be
			sure to trim thick branches

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