Blade Replacement, Troubleshooting | Bush Hog FTH 600, ATH 720

4-5 BLADE REPLACEMENT

Figure 4-2 Blade Placement

CAUTION

Spindle Assembly

WEAR HEAV

Y WORK GLOVES TO PRO-

TECT HANDS FROM SHARP EDGES.

A. Raise cutter using tractor 3-point lift and

SECURELY BLOCK INTO POSITION.

B. Turn off tractor, set parking brake and remove key.

C. Remove bolt and cup washer securing blade to

spindle. Remove blade.

Blade

D. Install new blade as shown in Figure 4-2 with con-

cave side of cup washer against blade. Be sure that

blades are installed with offset in proper direction. Tighten

Cup Washer

retaining bolt to 76 ft./lbs.

4-6 TROUBLESHOOTING

Retaining Bolt

Troubleshooting procedures are listed in Table 4-1 below. If the problem cannot be solved or replacement parts

are necessary, contact your authorized Bush Hog dealer. Please have ready your machine name, model num-

ber, serial number, purchase date and exact cause or description of problem.

Table 4-1 Troubleshooting

PROBLEM

PROBABLE CAUSE

REMEDY

Uneven Cut

Cutter not level

See SECTION III.

side to side or

front to rear.

Adjust belt per

Belt slipping.

Worn or bent blade(s).

paragraph 4-3.

Replace blade(s).

Streaking or Windrowing

Possible build-up

Clean cutter.

of material under

cutter.

See SECTION III.

Cutter not level.

Worn blades.

Replace blades.

Belt slipping.

Adjust belt per

paragraph 4-3.

Noisy Cutter

Loose components.

Check all bolts for

Low oil in gearbox.

tightness.

Check oil per paragraph 4-2.

Rapid Blade Wear

Blade contacting

Adjust cutting height to

(cutting edge)

ground.

eliminate ground contact.

Cutter Vibrating

Cutter not being

Set tractor throttle for

operated at rated

proper PTO speed.

PTO speed.