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19 

 

C

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. 
1. Remove the crawler cover and bolt. 
2. Loosen locknut (A, Figure 27) in the rear part of the machine. 
3. Turn the tension bolt (B, Figure 27) clockwise to increase the crawler tension and counterclockwise 
to decrease. 
4. The free play of the belt should be between 10 to 20 mm by pushing with hand. 
5. Adjust crawler tension, both side crawler should be the same tension. 
6. After adjusting, fix locknut certainly and crawler cover. 

 

 

 

 


Figure 27

 

Bolt 

Bolt 

Crawler Cover 

Axle Pin 

Figure 26

 

Figure 28

 

10-20mm 

 

Summary of Contents for HRC663

Page 1: ...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 y...

Page 2: ...MODEL SERIAL NUMBER refer to the pictures herein Always mention these information to your dealer in order to obtain the right parts Concerned about constant progress OREC keeps the right to modify the...

Page 3: ...EASUREMENT 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 10 7Hp Transmission Mechanic...

Page 4: ...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 ne...

Page 5: ...hen running on a slope basically work going up or down In case of going across the slope respect the limit angle on slope Steer clear of unsteady embankments holes or rocks They might be dangerous dur...

Page 6: ...er Handlebar adjustment UP DOWN Cutting height adjustment Rotary cover Safety cover Front Driving clutch lever Left Right Rear Throttle Air filter Starter Fuel cock Blade clutch locking lever Fuel tan...

Page 7: ...d or when missing Unplug the spark plug wire before performing maintenance read owner s manual Beware of thrown objects Keep away from the machine Read owner s manual No hands or feet under the mowing...

Page 8: ...RS continued Do not exceed 15 slopes HRC663 Do not exceed 25 slopes HRC673 813 Always wear protective equipment against dust noise and wear glasses Beware of rotative belt under the shield No hands or...

Page 9: ...the throttle lever 5 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 s...

Page 10: ...ated on the left side of the handlebar It allows to run the engine when positioned on ON and stop the engine when positioned on OFF Figure 4 Use this switch to start or stop the engine ENGINE Refer to...

Page 11: ...s scattering from coming at the mower WARNING The covers are the really important parts to protect from thrown objects Do NOT attempt to operate the machine if the covers are in abnormal conditions Ma...

Page 12: ...sons use the machine Check that nobody or no objects stands near the machine when at work They could be hit by the moving parts Nobody must stand on the machine except the driver Never put your hands...

Page 13: ...he mowing path from foreign objects stones woods cans bottles and 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 Relea...

Page 14: ...TART MOWING Transmission oil level Loosen the bolt of the oil gauge 1 Figure 9 if the level is correct the oil level should appear in the gauge Transmission oil replacement Gear Oil SAE90 or API GL 5...

Page 15: ...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 Engine oil replacement BLADE AND BLADE HOLDER CO...

Page 16: ...nts G Figures 16 17 with light oil WIRES GAP Transmission wires If the machine does not stop when the drive clutch lever is released adjust the tension wire as follow unscrew the locking screw A Figur...

Page 17: ...is connected to the blade wire Check if the blade brake works correctly when adjusting blade wire control Direction wires If the wheel is not locked with side clutch lever engaged adjust as follows U...

Page 18: ...ls Stop engine and disconnect sparking cover Unscrew the 2 bolts of the shield to reach the belt Push the belt with a finger on F Figure 23 the belt must move from 3 to 5 mm If the belt does not move...

Page 19: ...rs of use 1 Remove the crawler cover and bolt 2 Loosen locknut A Figure 27 in the rear part of the machine 3 Turn the tension bolt B Figure 27 clockwise to increase the crawler tension and countercloc...

Page 20: ...and nuts are in place and tight Cover cracks deformation corrosion There are no cracks deformation or corrosion Flapper damage defects and loss There are no damage defects or loss Lever Wire Crawler d...

Page 21: ...re slipping Belt tension is too low Adjust belt tension Foreign objects are stuck inside of rotary cover Clean up inside of the cover Some grass is stuck on pulley Clean up pulley Belt is worn out Rep...

Page 22: ...53 9 49 53 9 72 6 82 4 12 44 1 53 9 83 4 93 2 93 2 107 9 93 2 107 9 122 6 137 3 14 63 7 78 5 117 7 132 4 132 4 147 1 147 1 166 7 205 9 225 6 16 88 3 107 9 152 171 6 176 5 196 1 215 8 245 2 313 8 343...

Page 23: ...y assessment 2006 42 EC Annex VIII Measured acoustic power level 101 8 dB A Granted acoustic power level 102 3 dB A Conformity assessment 2000 14 EC Annex V Acoustic pressure level at operator s ears...

Page 24: ...y assessment 2006 42 EC Annex VIII Measured acoustic power level 101 8 dB A Granted acoustic power level 102 3 dB A Conformity assessment 2000 14 EC Annex V Acoustic pressure level at operator s ears...

Page 25: ...y assessment 2006 42 EC Annex VIII Measured acoustic power level 103 85 dB A Granted acoustic power level 105 dB A Conformity assessment 2000 14 EC Annex V Acoustic pressure level at operator s ears 9...

Page 26: ...ected repaired or replaced The part s must be returned with freight prepaid and must be accompanied with a proof of the purchase The part s must be packed with the greatest of care to ensure their pro...

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