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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.  It  is  recommended  that  tractor  be  equipped
with Rollover Protective System (ROPS) and a seat
belt be used. 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
prevent  blades  from  striking  the  ground,  reducing
blade wear and undue strain on the machine. Adjust
as follows:

A. Raise cutter off ground using tractor 3-point lift.

SECURELY BLOCK CUTTER IN POSITION.

WARNING

THE  CUTTER  CAN  FALL  FROM  HYDRAULIC
SYSTEM  FAILURE.  TO  AVOID  SERIOUS
INJURY  OR  DEATH,  SECURELY  SUPPORT
CUTTER BEFORE WORKING UNDERNEATH.

B.Remove pin securing caster stem to caster arm.

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

C.  Place  amount  of  spacers  on  caster  stem  to

give  desired  cutting  height.  With  no  spacers  on  the
bottom, a 1” or slightly lower cutting height is given.

D.  Reinstall  caster  stem  into  caster  arm.  Place

remaining spacers on caster stem above caster arm
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  so
cutter lower links are parallel to ground.

Figure 3-1

DANGER

STAND  CLEAR  OF  ROTATING  CUTTER
BLADES  UNTIL  ALL  MOTION  HAS
STOPPED. TO AVOID ACCIDENTAL FALL
AND  POSSIBLE  INJURY  FROM  CUTTER,
IT  IS  RECOMMENDED  THAT  TRACTOR
BE  EQUIPPED  WITH  ROLLOVER  PRO-
TECTIVE  SYSTEM  AND  THAT  A  SEAT
BELT BE USED FOR ALL OPERATIONS.

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.

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, disengage 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 must be visible from the rear
by approaching vehicles.

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.

Spacers

Caster
Wheel

9

Summary of Contents for AIR TUNNEL FINISHING MOWER ATH 900

Page 1: ...MBLY l OPERATION l MAINTENANCE 04 09 Rev 1 4 00 90789 A AT TH H 9 90 00 0 A Ai ir r T Tu un nn ne el l F Fi in ni is sh hi in ng g M Mo ow we er r O Op pe er ra at to or r s s M Ma an nu ua al l BUSH...

Page 2: ...ler we stock genuine Bush Hog parts which are manufactured with the same precision and skill as our original equipment Our trained service personnel are well informed on methods required to service Bu...

Page 3: ...r Operator s responsibility to read the Operator s Manual to operate lubricate maintain and store the product in accordance with all instructions and safety procedures Failure of the operator to read...

Page 4: ...stallation other than cost approved by Bush Hog duty taxes charges for normal service or adjustment loss of crops or any other loss of income rental of substitute equipment expenses due to loss damage...

Page 5: ...rqued to specifications given in Torque Chart r 6 All decals in place and readable See decal page o 7 Overall condition good i e paint welds o 8 Operators manual has been delivered to owner and he has...

Page 6: ...y passengers 6 Keep the area of operation clear of all persons particularly small children and pets The operator should cease mowing whenever anyone comes within the operating area 7 Clear the work ar...

Page 7: ...not limited to instructions to Keep all guards in place when the machine is in operation Permit no riders on equipment Stop engine disconnect the power source and wait for all machine movement to stop...

Page 8: ...rses or any maintained area where a clean uniform finish is desired Three paral lel uplift blades form a suction during operation to lift the grass before cutting it The four caster wheel arrangement...

Page 9: ...box input shaft Shut down tractor leaving cutter in position of greatest distance SECURELYBLOCK CUTTER IN POSITION F Hold down driveline sections parallel to each other and check for minimum 6 inches...

Page 10: ...e certain driveline shielding is in place and in good condition Figure 2 4 Figure 2 5 MAKE CERTAIN DRIVELINE YOKES ARE SECURELY FASTENED FAILURE TO DO SO MAY RESULT IN SERIOUS INJURY L Raise cutter of...

Page 11: ...stem above caster arm 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 lis...

Page 12: ...ion listen for abnormal sounds which might indicate loose parts damaged bearings or other damage Correct any deficiency before con tinuing operation AFTER EACH USE 1 Clean all debris from machine espe...

Page 13: ...ension by loosening the two 3 8 hex nuts on the spring adjustment rod Figure 4 1C C Remove old belt D Install new belt referring to the diagram below also refer to the decal on the mower deck Be sure...

Page 14: ...s Streaking or Windrowing Possible build up Clean cutter of material under cutter Cutter not level See SECTION III Worn blades Replace blades Belt slipping Adjust belt per paragraph 4 3 Noisy Cutter...

Page 15: ...fety glasses when hammering grinding or drilling metal parts SECTION V DEALER ASSEMBLY CAUTION 13 10 If the assembly calls for welding or cutting be sure that there are no flammable materials close at...

Page 16: ...olt 2 5 8 pivot tube and lock nut Figure 5 5 F Place two long spacers on the caster stems and insert into caster arms Place two long spacers and two short spacers on the caster stem above the caster a...

Page 17: ...can occur to safety decals either through shipment use or reconditioning Bush Hog will upon request provide safety decals for any of our products in the field at no charge Contact your authorized Bus...

Page 18: ...2 UNF 553 749 1241 1682 2013 2728 2 1 16 1 3 8 6 UNC 655 887 1470 1992 2382 3228 2 1 16 1 3 8 12 UNF 746 1011 1672 2266 2712 3675 2 1 4 1 1 2 6 UNC 870 1179 1950 2642 3161 4283 2 1 4 1 1 2 12 UNF 979...

Page 19: ......

Page 20: ...2501 Griffin Ave l l Selma AL 36703 Telephone 334 874 2700 l l www bushhog com...

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