Bush Hog 280 manual Section Preparation for USE, Attaching to Tractor

SECTION II

PREPARATION FOR USE

2-1 ATTACHING TO TRACTOR

WARNING

NEVER STAND BETWEEN TRACTOR AND CUTTER WHILE TRACTOR IS BEING BACKED TO HITCH.

WARNING

ADDITIONAL TRACTOR FRONT BALLAST MAY BE NEEDED FOR STABLE OPERATION AND TRANSPORT OF THE 3-POINT HITCH MOUNTED CUTTER. SEE TRACTOR OPERA- TOR’S MANUAL FOR RECOMMENDED WEIGHTS.

WARNING

DO NOT USE PTO SHAFT ADAPTERS TO CHANGE SIZE OF TRACTOR PTO SHAFT. THE CORRECT DRIVELINE MUST BE USED TO MATCH TRACTOR PTO SHAFT.

A.Attach cutter to tractor 3-point hitch per tractor operator’s manual. Do not attach driveline at this time.

IMPORTANT

Tractor top link pin securing 3-point hitch top link to cutter must conform to dimension shown in Figure 2- 1 to avoid interference with A-frame.

Figure 2-1 Top Link Pin

5-1/2”

3-3/4”

3-3/4”

B. Raise 3-point hitch until front of cutter is approxi- mately 1-2 inches (25-51mm) lower than rear for standard cut or until front of cutter is 1 inch (35mm) higher than rear for extra shredding. Shut down tractor. Securely block cutter in position. For further explanation of cutter adjustment, see paragraph 3-2.

C. Adjust top link of 3-point hitch to position flex link as shown in Figure 2-2.

Figure 2-2 Flex-Link

QUICK HITCH ASSEMBLY

5/8 X 5-1/2” Capscrews

w/ 2-3/8” Bushing

3/4 x 4” Capscrew

1 x 4-1/2” Capscrew w/ 1” Bushing w/ 1-1/4” Bushing

3/4 x 2-1/2” Capscrews

w/ 1” Bushing

Lower Hitch Pin w/ Cat. I & Cat. II Bushings

NOTE

Due to the many variations in tractor / imple- ment hitch points and corresponding differ- ences in distances between tractor PTO shafts and implement input shafts, drivelines may need to be shortened as described in the following steps:

D. Raise and lower cutter to determine position with shortest distance between the tractor PTO shaft and gearbox input shaft. Shut down tractor leaving cutter in position of shortest distance. Securely block cutter in position.

E. Pull driveline apart. Attach outer (female) sec- tion to tractor PTO shaft. Pull on driveline section to be sure that yoke locks into place.

F. Hold driveline sections parallel to each other to determine if too long. Each section should end approximately 3 inches (76mm) short of reaching universal joint shield on opposite section. If too long, measure 3 inches (76mm) back from universal joint shield and mark on opposite section. (Figure 2- 3). Do this for both sections.

G. Raise and lower cutter to determine position with greatest distance between PTO shaft and gear- box input shaft. Shut down tractor leaving cutter in position of greatest distance. Securely block cut- ter in position.

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