OREC HR531 Instruction Manual
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OREC HR531 Instruction Manual

Grassland walk behind flail mower
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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

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Summary of Contents for OREC HR531

  • Page 1 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.

  • Page 2: Introduction

    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 :..................

  • Page 3: Table Of Contents

    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...

  • Page 4: Check List

    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.
  • Page 5 • 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. •...

  • Page 6: Different Parts Of The Mower

    DIFFERENT PARTS OF THE MOWER Rear Right Blade clutch Blade tension locking lever lever Throttle Handlebar Side clutch adjustment lever (L /R) Handlebar Driving clutch adjustment lever UP/DOWN Fuel tank Cutting height adjustment Starter Air Filter Fuel Cock Left Front...

  • Page 7: Safety Instruction Stickers

    SAFETY INSTRUCTION STICKERS Note their location and replace them immediately in case of damage or when missing Read owner’s manual Keep away from the Beware of thrown objects 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...
  • Page 8 SAFETY INSTRUCTION STICKERS (continued) No hands or feet under the mowing deck Beware of rotative belt under the Always wear shield Do not exceed 15° protective equipment slopes against dust, noise and wear glasses...

  • Page 9: Controls

    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).
  • Page 10 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...

  • Page 11: Operation

    OPERATION CAUTION Check the tightening of bolts, refering to the tightening torque chart The safety is one of our main worries when designing and manufacturing this machine. Negligence in the use of the machine spoils our efforts. The prevention strictly depends on the care and on the skill of the user when applying and maintaining the machine.
  • Page 12 CAUTION Clear the mowing path from foreign objects, stones, woods, cans, bottles, pieces of steel, which can be thrown by the mower. They can cause injury to the operator or the bystanders. HOW TO STOP THE MACHINE •Release drive clutch lever and blade clutch lever. •Push the throttle lever to “LO”.

  • Page 13: Maintenance Operations To Be Carried Out By The User

    MAINTENANCE OPERATIONS TO BE CARRIED OUT BY THE USER DANGER BEFORE performing any maintenance operation on the machine, stop the engine, and remove the spark wire from the sparking plug. If maintenance operation is not realized, damages can occur to the machine and personnal injuries to the user and/or spectators.
  • Page 14 Check the level that must be between the two marks. Engine oil : SAE 10W30 or API SL class  Engine oil quantity : 0.6L(HR531), 1.1L (HR662/672/812)  Remove oil drain plug(2, Figure13) in case of changing oil. Engine oil replacement First : 20 hours Later : each 100 hours or every year whichever comes first.
  • Page 15  CAUTION Use only original genuine OREC parts. Other parts may be dangerous for your health and for the bystanders and the machine. If some flails are missing, big vibrations will occur. If you feel such vibrations on the handlebar, check the rotor and the flails.
  • Page 16 Blade brake is connected with the blade wire. Check if the blade brake works correctly when adjusting blade wire control. Direction wires : If the wheel is not free(HR531/662/) or not locked(HR672/812) with side clutch lever engaged, adjut as follows: •Uscrew locking nut (E, Figures 18,19).
  • Page 17 BELTS ADJUSTMENT: WARNING A loosened belt may slip and get worn quickly, a too tightened belt may wear out bearings. Check for belt condition, cracks and wear. Replace if necesary.  Belt from engine to counter shaft Switch off the engine, disconnect the spark plug wire and ...
  • Page 18 AINTENANCE CHART Accidents or troubles can be caused if you do not inspect and maintain the machine. Inspect and maintain as below in order to keep the machine work good and safe. * For engine, refer to engine manual. Frequency : D / Daily M / Monthly Y / Yearly FREQUENC...

  • Page 19: Breakdowns And Solutions

    BREAKDOWNS AND SOLUTIONS you face with the problems below, refer to “solution” and take the appropriate action. * For engine, refer to engine manual. PROBLEM POSSIBLE CAUSE SOLUTION Grass is wet. Wait until grass sets dry. Grass is tall. Mow with higher cutting height first. Cut grass is not Cutting height is too low.

  • Page 20: Tightening Torques (Nm)

    TIGHTENING TORQUES (Nm) Mark on the screw head Diameter screw(mm) Or without mark 0.3~0.5 0.8~1.0 2.5~3.4 5.4~6.4 6.4~7.4 6.4~7.4 8.8~9.8 4.9~6.9 9.8~11.8 11.8~13.7 11.8~13.7 14.7~16.7 11.8~16.7 24.5~29.4 29.4~34.3 34.3~36.2 36.3~41.2 20.6~29.4 39.2~44.1 49~53.9 49~53.9 72.6~82.4 44.1~53.9 83.4~93.2 93.2~107.9 93.2~107.9 122.6~137.3 63.7~78.5 117.7~132.4 132.4~147.1...

  • Page 21: Ec Conformity Declaration

    Signed : Haruhiko Imamura Function : Managing director MEASUREMENT OF VIBRATIONS walk behind grassland Mower Mark : OREC Type : Engine : GX200 ---HR531 Accelerometer Position HR531 100mm from external side of handlebar(Left side) 3,12 m/s 100mm from external side of handlebar(Right side)

  • Page 22: Ec Conformity Declaration

    EC CONFORMITY DECLARATION Business name and full address of the manufacturer : OREC CO., LTD 548-22 HIYOSHI HIROKAWA-MACHI YAME-GUN FUKUOKA JAPAN S.A.T. sarl - Force 7 – ZA – 38110 ROCHETOIRIN France owner of the technical documents Designation : walk behind grassland Mower...

  • Page 23: Ec Conformity Declaration

    EC CONFORMITY DECLARATION Business name and full address of the manufacturer : OREC CO., LTD 548-22 HIYOSHI HIROKAWA-MACHI YAME-GUN FUKUOKA JAPAN S.A.T. sarl - Force 7 – ZA – 38110 ROCHETOIRIN France owner of the technical documents Designation : walk behind grassland Mower...

  • Page 24: Ec Conformity Declaration

    EC CONFORMITY DECLARATION Business name and full address of the manufacturer : OREC CO., LTD 548-22 HIYOSHI HIROKAWA-MACHI YAME-GUN FUKUOKA JAPAN S.A.T. sarl - Force 7 – ZA – 38110 ROCHETOIRIN France owner of the technical documents Designation : walk behind grassland Mower...

  • Page 25: Limited Warranty

    OREC. 2° Each part concerned by a guarantee claim must be returned to OREC’s in order to be inspected, repaired or replaced. The part(s) must be returned with freight prepaid and must be accompanied with a proof of the purchase.

This manual is also suitable for:

Hr662Hr672Hr812

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