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INSTRUCTION MANUAL
HRC663/673/813
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 : June 2020
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Table of Contents
Related Manuals for OREC HRC663
Summary of Contents for OREC HRC663
- 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.
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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 .........................23 EC CONFORMITY DECLARATION .........................24 MEASUREMENT OF VIBRATIONS .........................24 EC CONFORMITY DECLARATION .........................25 MEASUREMENT OF VIBRATIONS .........................25 LIMITED WARRANTY ............................26 NOTES ................................26 SPECIFICATIONS Model HRC663 HRC673 HRC813 Engine HONDA GX270 HONDA GX270 HONDA GX340 Engine power(HP) 8.45Hp 8.45Hp... -
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 responsibility. • 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: Safety Rules
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. -
Page 6: Different Parts Of The Mower
DIFFERENT PARTS OF THE MOWER Right Blade clutch Rear Throttle locking lever Blade tension Driving clutch lever lever Handlebar adjustment (L /R) Handlebar adjustment Side clutch UP/DOWN lever Cutting Fuel tank height adjustment Safety cover Starter Air filter Rotary cover Fuel cock Left Front... -
Page 7: Safety Instruction Stickers
SAFETY INSTRUCTION STICKERS Note their location and replace them immediately in case of damaged or when missing Keep away from the Read owner’s manual Beware of thrown objects Unplug the spark plug machine wire before performing maintenance, read owner’s manual No hands or feet under the mowing deck Read owner’s manual to be aware of the risks such as... - Page 8 SAFETY INSTRUCTION STICKERS (continued) No hands or feet under Beware of rotative belt under the the mowing deck Always wear shield Do not exceed 15° protective equipment slopes (HRC663) against dust, noise and wear glasses Do not exceed 25° slopes (HRC673, 813)
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Page 9: Controls
CONTROLS DRIVING CLUTCH LEVER Push the lever (1, Figure 1) down to the handlebar to make the machine move. Release the lever, then the machine stops. BLADE CLUTCH LEVER Blade clutch lever makes the engine drive the blade to mow. Push the lever (2, Figure 1) then pull up the lever (3, Figure 1) to make the blade spin. - Page 10 FUEL COCK (2, FIGURE 2) 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 adjusted by turning the crank-lever (1, Figure 3) clockwise to increase the height of cut and anti- clockwise to lower the height of cut.
- Page 11 ROTARY COVER (1, FIGURE 6) The blade spins at a high speed inside the cover. This cover prevents cut grass and foreign objects from scattering. FRONT COVER (2, FIGURE 6) This opens and closes automatically depending on the quantity of grass.
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Page 12: Operation
DRIVING ON SLOPE Driving on a slope is very dangerous. For your safety, never work on a more than 15°(HRC663) / 25° (HRC673 / 813) slope. Also, be careful even when you work on a slope of less than the limited degree. - Page 13 MOWING •Start the engine •Adjust the height of cut as needed. WARNING Do not forget that it is better to mow grass regularly. Remember that the machine gets deteriorated rapidly in the hot and dry weather. When cutting height is low, the blade may hit the ground and get damaged.
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Page 14: 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, the machine can get damaged easily and cause personal injuries to the user and/or bystanders. - Page 15 Check the level. That must be between the two marks. • Engine oil : SAE 10W30 or API SL class • Engine oil quantity : 1.10L (HRC663) 1.28L (HRC673/813) Remove oil drain plug (2, Figure 13) in case of changing oil.
- Page 16 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. Vibrations may loosen the bolts and nuts and may crack the steel of the machine.
- Page 17 Blade wire : • If the blade does not stop when the blade lever is released, adjust the tension wire as follow : unscrew the locking screw (A, Figure 19) and unscrew the nut (B, Figure 19). Try the machine again. Perform the adjustment again if needed.
- Page 18 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 necessary. Belt from engine to counter shaft 3-4mm • Stop engine and disconnect sparking cover, clutch the blade. •...
- Page 19 RAWLER ADJUSTMENT WARNING Crawlers tend to be stretched at first and gradually get suited for the sprocket. When the tension of crawler is not adjusted correctly, the crawlers might be taken off, or the life time can be shortened. Adjust crawler tension as follows. Check crawler tension every 50 hours of use.
- Page 20 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 FREQUENCY...
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Page 21: 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 22: 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 23: Ec Conformity Declaration
Signed : Haruhiko Imamura Function : Managing director MEASUREMENT OF VIBRATIONS walk behind grassland Mower Mark : OREC Type : Engine : GX270 ---HRC663 Accelerometer Position HRC663 100mm from external side of handlebar(Left side) 3,64 m/s 100mm from external side of handlebar(Right side) -
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: 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 26: 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.