OREC HR531 Manuel utilisateur

INSTRUCTION MANUAL

HR531/662/672/812

Grassland walk behind flail mower

Read this instruction manual carefully before any use of the machine, keep it as a reference.For any

question about this manual, please report to your OREC dealer or to the distributor of your country or

to : http://www.orec-jp.com.

Update : July 2021

“Only the English version of this manual can be used as a reference.”

INTRODUCTION

Forword to the user

Read this manual before any use of your mower, only the herein instructions shall help you to achieve

an efficient and safe work.

A safe use will only result from the manner you will use the machine in accordance with the

restrictions described in this manual. Thus, you must know and follow all the safety measures in this

manual and those relating to the use of your mower.

The MOWER that you have just bought has been designed and manufactured for your entire

satisfaction. As any other mechanical machine, it requires a proper maintenance and must be kept

clean. Grease the machine like indicated. Follow the rules and safety indications as described in this

manual and as showed on the preventive instruction stickers.

About maintenance, always mind that your OREC dealer has the skills, the genuine parts and the

necessary tools to solve the possible problems.

Use only the OREC original parts : “ non genuine ” parts will not assure you of a correct and safe

working and are likely to make the guarantee null and void. Write the name and the serial number of

your machine hereunder :

MODEL :.......................................................................................

SERIAL NUMBER (refer to the pictures herein) :.........................

Always mention these informations to your dealer in order to obtain the right parts.

Concerned about constant progress, OREC keeps the right to modify the machines without being

compelled to modify those already sold.

The illustrations and characteristics in this manual might lightely differ from your machine because of

the constant improvements made by our production department.

In this manual, the left and the right hand or the rear and the front position are determined according

to the mower handlebar.

All along this manual the word IMPORTANT is used to indicate that a fault might cause damage to the

machine. The words WARNING, CAUTION and DANGER are used with the “ safety/warning ”

pictogram (triangle with an exclamation mark) in order to indicate a hazard for your safety.

This symbol indicates that you must be very attentive because your safety is at stake. It reminds that

you must follow the safety instructions and pay attention to hazardous operations that might cause

injuries.

WARNING

Reminds the safety rules that might cause injury if they are not respected

CAUTION

Remembers to pay attention to a real danger that is likely to cause injury or even death if no proper

precaution is taken.

DANGER

Indicates a major hazard that is most likely to cause irremediable injury or death if the right

precautions are not taken.

CONTENTS

INTRODUCTION ................................................................................................................................................2

CONTENTS ........................................................................................................................................................3

SPECIFICATIONS..............................................................................................................................................3

CHECK LIST .......................................................................................................................................................4

SAFETY RULES .................................................................................................................................................4

DIFFERENT PARTS OF THE MOWER .............................................................................................................6

SAFETY INSTRUCTION STICKERS .................................................................................................................7

CONTROLS ........................................................................................................................................................9

OPERATION.....................................................................................................................................................11

MAINTENANCE OPERATIONS TO BE CARRIED OUT BY THE USER ........................................................13

BREAKDOWNS AND SOLUTIONS .................................................................................................................19

TIGHTENING TORQUES (Nm)........................................................................................................................20

EC CONFORMITY DECLARATION .................................................................................................................21

MEASUREMENT OF VIBRATIONS .................................................................................................................21

EC CONFORMITY DECLARATION .................................................................................................................22

MEASUREMENT OF VIBRATIONS .................................................................................................................22

EC CONFORMITY DECLARATION .................................................................................................................23

MEASUREMENT OF VIBRATIONS .................................................................................................................23

EC CONFORMITY DECLARATION .................................................................................................................24

MEASUREMENT OF VIBRATIONS .................................................................................................................24

LIMITED WARRANTY ......................................................................................................................................25

NOTES..............................................................................................................................................................25

SPECIFICATIONS

Model

HR531 HR662 HR672 HR812

Engine

HONDA GX200 HONDA GX270 HONDA GX270 HONDA GX340

Engine power (kW)

4.1 6.3 6.3 8.0

Transmission

Mechanical Mechanical Mechanical Mechanical

Forward speed (km/h)

(1) 0.85

(2) 1.78

(3) 3.14

(1) 0.94

(2) 1.96

(3) 3.45

(1) 0.94

(2) 1.96

(3) 3.45

(1) 0.94

(2) 1.96

(3) 3.45

Reverse speed (km/h)

0.85 0.94 0.94 0.94

Cutting width (mm)

520 650 650 800

Height of cut (mm)

50-110 50-110 50-110 50-110

Weight (kg)

124 160 160 160

Fuel tank capacity (liters)

3.1 5.3 5.3 6.1

Blade transmission

Belts belts belts belts

Blade engagement

Belt tension belt tension belt tension belt tension

Side clutch

Free free lockable lockable

blade speed (rpm)

2840 3075 3075 3075

Over all width (mm)

700 815 815 950

CHECK LIST

INSTRUCTIONS TO THE DEALER

• The assembling, the installation and the first application of the machine is under the OREC dealer’s

responsability.

• Read the instruction manual as well as the safety measures. Check that all the before delivery and

at delivery check points specified in the following lists have been verified and possibly modified before

delivering the machine to its owner.

CHECKS BEFORE DELIVERY

• Check that all the shields, grids and safety guards are in place and in a good condition.

• Check that the hydraulic hoses are in place and in a good condition. Replace them if necessary.

• Check that there is no oil leak, repair if necessary.

• Check that the safety instruction stickers are in place and in a good condition. Replace them if

necessary.

• Check that all the bolts and screws are properly tightened with the right torque (refer to torque

chart).

• Protect the grease nipples by coating them with grease and lubricate the machine.

• Check that the machine can work properly.

CHECKS ON DELIVERY

•Show the user how to perform the adjustments.

•Explain to the user the importance of the lubrication and show him the different greasing points on

the machine.

•Show him the safety devices, grids, guards and the optional equipments.

•Give the instruction manual to the customer, ask him to read it carefully.

SAFETY RULES

CAUTION

Some of the illustrations show the machine with no guard, no shield. Never use the machine

without these devices.

•Learn to stop the machine in case emergency.

•Read this manual.

•Do not let anybody use the machine before having read and understood this

manual.

•Do not let children use the machine.

•Do not wear loose clothes. They might be grasped by moving parts.

•Always wear protection equipments for when using the machine.

•Only work during daylight or with a good artificial light.

•Check that the safety instruction stickers are in place and in a good condition.

•Keep the machine free from debris or mud.

•Check that the machine can work properly before any use.

•Check that all the shields, grids and safety guards are in place and in a good state.

•It is strictly forbidden to carry persons or animals onto the machine during the work or during the

transportation.

•Never stop or start roughly when working on a slope. Never use the machine to work on a stepping

terrain.

•Reduce the ground speed when running on a slope and when turning

straight in order to prevent from any risk of losing control.

•Be very careful when bordering ditches.

•Stop the engine, and remove the sparking plug ignition cover before any

intervention on the machine.

•Never work under the machine or its parts when lifted, unless they are

blocked and maintained into position with sufficient security.

•When running on a slope, always work going up or down but never across

the slope.

•Steer clear of unsteady embankments, holes or rocks. They might be dangerous during manœuvres

or transport.

•Keep away from electric wires and obstacles. A contact with electric wires cause electrocution and

death.

•Stop the machine progressively when lifting or lowering the machine.

•When stopping the work, stop the engine and remove the sparking plug ignition cover before leaving

the mower.

•Engage all the safety equipments.

•Move the controls only when correctly sat down in the mower

•Visually check hydraulic leaks and if some parts are faulty or missing. Repair before use.

•Never change the adjusment of the regulator, it is set in the factory. Unsetting this valve would cause

failures.

•Ensure that the user of the machine has already read and understood this

manual and that he is aware of all the safety instructions before any use.

•Always use a chuck and bronze hammer when replacing or intervening

on the pins and bolts at the end of rams, rod … etc in order to avoid the

projection of metal fragments.

•Clear the mowing path from foreign objects, stones, woods, cans, bottle,

pieces of steel, wich can ne thrown by the mower.

•Gasoline is hightly flammable :

•- Refuel outside, never smoke when refuelling

•- Never refuel when the engine is running, stop the engine before refuelling

•- Allowed the engine to cool down before refuelling

•- If gasoline has spilled, do not try to start engine before the spilled gasoline has been wiped.

•- Check that the fuel cap is correrctly installed after refuelling

•

DIFFERENT PARTS OF THE MOWER

Side clutch

lever

Driving clutch

lever

Left

Right

Rear

Throttle

Starter

Blade clutch

locking lever

Fuel tank

Handlebar

adjustment

(L /R)

Blade tension

lever

Air Filter

Fuel Cock

Front

Cutting

height

adjustment

Handlebar

adjustment

UP/DOWN

SAFETY INSTRUCTION STICKERS

Note their location and replace them immediately in case of damage or when missing

Read owner’s manual

Beware of thrown objects

Keep away from the

machine

Unplug the spark plug wire before

perform maintenance, read owner’s

manual

Read owner’s manual to be aware of

the risks

like burns, breathing

intoxication, and fire

No hands or feet under the

mowing deck

SAFETY INSTRUCTION STICKERS (continued)

No hands or feet under

the mowing deck

Do not exceed 15°

slopes

Always wear

protective equipment

against dust, noise

and wear glasses

Beware of rotative belt under the

shield

CONTROLS

DRIVING CLUTCH LEVER

Push the lever(1, Figure 1) down to the handlebar to

make the machine moving. Release the lever, then the

machine stops.

BLADE CLUTCH LEVER

Blade clutch lever makes the engine drive the blade to

mow. Press the lever (2, Figure 1) then pull the lever (3,

Figure 1) to make the blade turning.

Release the lever, then the rotor stops.

WARNING

Never try to start or stop the engine with blade

engaged

THROTTLE LEVER

Push the throttle lever(4, Figure 1) to left to increase engine speed, push the throttle lever to right to

decrease engine speed to idle rpm. Always operate mower at full engine speed.

SIDE CLUTCH LEVERS

The side clutch levers (5, Figure 1) are used to change the direction of the machine. Grip right lever to

turn right and left lever to turn left. To move the machine when engine is cut off, grip the both levers.

DANGER

Do not grip the two levers in slopes when engine is running.

HANDLEBAR ADJUSTMENT LEVERS

Grip the lever(6, Figure1) to move handelbar right and left(except

HR531).

And grip the lever(7, Figure 1) to move handlebar up/dpwn.

SPEED LEVER

This lever (Figure 2) allows to select 3 forward speeds (1, 2, 3), 1 reverse

speed (R) or 3 neutral location (N).

WARNING

Be sure to change speed only when driving clutch is

disengaged and machine is stopped.

CHOKE LEVER (1, FIGURE 3)

Push this lever to X to operate the choke to start engine cold,

when engine has start release it to Y.

IMPORTANT

There is no need to choke when the engine is hot.

Figura 2

Figura 1

Figura 3

FUEL COCK (2, FIGURE 3)

Open fuel cock before using the machine. Close fuel cock when

machine is not in use. Push the lever to Y to open fuel cock and to

X to close cock.

HEIGHT OF CUT CONTROL

Height of cut can be setted by turning the crank-lever (1,Figure 4)

clockwise to increase the height of cut and anti- clockwise to

decrease the height of cut.

WARNING

Always perform this adjustment with engine off and sparking

plug cover unplugged. When cutting low, more power is

needed and more objects are thrown. Cutting low can cause damage to the machine and injuries.

ENGINE ON/OFF SWITCH

This switch is located on the engine(HR531, Figure 5) or on the left

side of the handlebar(HR662/672/812, Figure 6).

It allows to run the engine when positionned on « ON » and stop

the engine when positionned on “OFF”.(Figure 5) Use this switch

to start or stop the engine.

ENGINE :

Refer to engine manual delivered with the machine.

Figura 4

Figura 5(HR531)

Figura 6(HR662/672/812)

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