Bush Hog RFM 60 Manuel de l'opérateur télécharger pdf (Page 12)

SECTION III

OPERATING INSTRUCTIONS

3-1 GENERAL SAFETY

Only qualified people familiar with this operator’s

manual and tractor operator’s manual should oper-

ate this machine. Operator should wear hard hat,

safety glasses and safety shoes. The operator

should read, understand and practice all safety mes-

sages shown on the caution, warning and danger

decals affixed to the cutter to avoid serious injury or

death. Use ROPS (Rollover Protective Structures)

and seat belt equipped tractors for mowing opera-

tions. Before beginning operation, clear work area of

any objects that may be picked up and thrown.

Check for ditches, stumps, holes or other obstacles

that could upset tractor or damage cutter. Always

lower cutter to ground and allow blades to come to a

complete stop, set parking brake and turn off tractor

engine before leaving tractor operator’s seat.

3-2 CUTTING HEIGHT ADJUSTMENT

The cutter should be operated at the highest position

that will give desired cutting results. This will help pre-

vent blades from striking the ground, reducing blade

wear and undue strain on the machine. Cutting too

much material will leave excess clippings on the lawn

surface. The more frequently the lawn is mowed, the

better the effect will be. Adjust as follows:

A. Raise cutter off ground using tractor 3-point

lift. SECURELY BLOCK CUTTER IN POSITION.

B. Remove pin securing caster wheel to bracket.

(Figure 3-1) Remove caster wheel from arm.

C. Place amount of spacers on caster wheel to

give desired cutting height. With no spacers on the

bottom, a 1-1/2” or slightly lower cutting height is

given.

D. Reinstall caster wheel into caster arm. Place

remaining spacers on caster wheel and install pin to

retain.

E. Repeat operation for all caster wheels. Make

certain all wheels are adjusted to the same height.

3-3 OPERATION

A. Perform BEFORE EACH USE maintenance

list in paragraph 4-1.

B. Start tractor. Lower cutter until it is supported

by caster wheels. Position tractor lower lift arms as

shown in Figure 2-6, page 9. This will allow cutter

to”float” during operation.

WARNING

THE CUTTER CAN FALL FROM

HYDRAULIC SYSTEM FAILURE. TO

AVOID SERIOUS INJURY OR DEATH,

SECURELY SUPPORT CUTTER BEFORE

WORKING UNDERNEATH

C. With tractor at idle speed, engage PTO drive.

Advance throttle to 540 PTO rpm.

D. Place tractor in low gear and begin cutting.

Tractor forward speed should be controlled by gear

selection, not engine speed. For maximum cutting

efficiency, forward speed should allow cutter to

maintain a constant maximum blade speed.

Cutting height should not put undue strain on tractor

and implement drivetrain. If tractor engine or cutter

stalls, do not slip tractor clutch to allow engine to

retain speed as this will exert undue strain on the

implement drivetrain. When stalling occurs, disen-

gage PTO drive, move to a cut area, set tractor

throttle to idle, then re-engage PTO drive.

Always cut up and down the face of slopes, never

across.

Check belt tension after first 8 hours. Adjust per-

paragraph 4-3 if needed.

3-4 TRANSPORTING

Turn off PTO drive and fully raise tractor 3-point lift

before transporting. When implement is transported

on road or highway, day or night, use tractor flashing

warning lights unless prohibited by law. A slow mov-

ing vehicle (SMV) sign on the tractor must be visible

from the rear by approaching vehicles.

STAND CLEAR OF ROTATING CUTTER

BLADES UNTIL ALL MOTION HAS STOPPED.

TO AVOID ACCIDENTAL FALL AND POSSIBLE

INJURY FROM CUTTER, USE ROPS

(ROLLOVER PROTECTION STRUCTURES) AND

SEAT BELT EQUIPPED TRACTORS FOR ALL

MOWING OPERATIONS.

DANGER

STAY CLEAR OF ROTATING DRIVELINE. DO

NOT OPERATE WITHOUT DRIVELINE SHIELDS

IN PLACE AND IN GOOD CONDITION. FAILURE

TO HEED THESE WARNINGS MAY RESULT IN

PERSONAL INJURY OR DEATH.

DANGER

Spacers

Caster

Wheel

Figure 3-1

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 18 19 20

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Bush Hog RFM 60 Manuel de l'opérateur Page 12

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