The 3-point hitch system is used on farming tractors to attach implements like plows and cultivators. It consists of a center link and two lift arms or links that connect to the implement. Category II implements should have their mast holes located 610 mm above the lower pins. The rockshaft position control lever raises and lowers the hitch to adjust the implement height, while the draft control lever controls the hitch position under load. Proper adjustment of the hitch links is needed to level the front-to-back and side-to-side position of the attached implement.

2. 3-Point Hitch system3-Point Hitch system
• The three-point hitch is a device used on
farming tractors. Three point attachment is
the simplest and the only
statically determinate way of joining two
bodies in engineering.

3. 3-Point Hitch Components3-Point Hitch Components
A—Center Link B—Lift Arms C—Lift Links D—Sway (Check) Chains E—Draft
(lower) links

4. Preparing ImplementPreparing Implement
• Category II implements should
have the top hole of the
implement mast located 610
mm (24 in.) above the lower
pins. Drill another hole in top
mast or extend top mast if
necessary.
Category Mast
Height
Width
Between
Lower Pins
Pin Size
Lower Upper
II 610 mm
(24 in.)
824 mm
(32-7/16 in.)
28.7 mm
(1-1/8 in.)
25.5
mm
(1 in.)

5. HITCHESHITCHES
3-point hitch is desired
Always hitch to the drawbar

6. Rockshaft Control LeversRockshaft Control Levers
• The rockshaft position is controlled by
two levers, the rockshaft position
control lever (A) and the rockshaft
draft control lever (B)
• The rockshaft position control lever
(A) raises the hitch when pulled
rearward, and lowers the hitch when
moved forward. See Using Rockshaft
Position Control in this section for
more information.
• The rockshaft draft control lever (B)
controls hitch position relative to draft
loads. See Using Draft Control in this
section for more information.
A—Rockshaft Position
Control Lever
B—Rockshaft Draft
Control Lever

7. Setting Position Control LeverSetting Position Control Lever
StopStop
• NOTE: Position control lever stop is
used when operating depth or height
needs to be repeated.
1. Operate implement for a few minutes
to determine proper depth or height.
2. Loosen lever stop (A), and slide against
position control lever. Lock stop in
position by turning in a clockwise
direction. Rockshaft will now lower to
same position each time control lever is
pushed for
A—Lever Stop

8. Attaching Implements to 3-Point
Hitch
1. Be sure drawbar will not interfere. If necessary, move drawbar
ahead, or remove it. Check for any other potential interference.
• CAUTION: Prevent unexpected movement of rockshaft by
placing draft sensing lever in the forward or OFF position
before attaching implement to hitch.
2. Back tractor up to implement (A) so hitch points align. Place
transmission in neutral (N), stop the engine and engage brakes
BEFORE leaving the tractor seat.

9. Attaching Implements to 3-Point
Hitch
3. Slip draft (lower) links over implement
hitch pins (B), and retain with quick-lock
pins.
• NOTE: Locking pins can be stored on
draft (lower) links (through holes in sway
chain ears) when not in use.
4. To remove center-link from transport
hook, lift center link locking clip (C), and
rotate tab (D) to rear of center link clip.
5. Attach center link to implement top mast.
6. Adjust center link and lift links as
necessary. (See Leveling the Hitch in this
section.

10. Attaching Implements to 3-Point
Hitch
7. Using Rockshaft Position
Control Lever (E), lower and
raise implement slowly and
check for any point of
interference.
E—Rockshaft Position Control
Lever
F—Rockshaft Draft Control
Lever

11. Adjusting Hitch Side Sway
(chain)
Implement side sway
(check chain) should be
adjusted when the
rockshaft is raised for
transport by loosening the
jam nut on the threaded
link (A) and turning the
center rod to increase or
decrease the length of
chain. Tighten jam nut
again when adjusted.
A—Threaded Link

12. Leveling the Hitch
• 1. Lower implement to take
weight off hitch.
• 2. Adjust center link to level
implement front-to-rear.
• Unlatch locking clip (A). Rotate
center link body (B)
• clockwise to lengthen center
link or counterclockwise to
shorten it. Be sure to latch the
locking clip. A—Locking Clip
B—Center Link Body

13. Leveling the Hitch
• 3. Adjust right-hand link to
level implement side-to-side.
Lift locking handle (C) and
turn 1/4 turn to engage slot
(D) onto roll-pin in the center
portion of the lift link.
• Turn crank handle (C)
clockwise to raise draft link.
• Turn crank handle (C)
counterclockwise to lower
draft link.
C—Locking Handle
D—Slot

14. Three-point hitch specificationsThree-point hitch specifications
Category upper link
Hitch pin size
lower
links Hitch
pin size
Lower
hitch
spacing
Tractor
drawbar
power
0 17 mm (5⁄8") 17 mm (5⁄8") 500 mm (20") <15 kW (<20
hp)
1 19 mm (3⁄4") 22.4 mm
(7⁄8")
718 mm (26") 15-35 kW (20-
45 hp)
2 25.5 mm (1") 28.7 mm (1
1⁄8")
870 mm (32") 30-75 kW (40-
100 hp)
3 31.75 mm (1 1⁄4") 37.4 mm (1
7⁄16")
1010 mm
(38")
60-168 kW
(80-225 hp)
4 45mm (1 3⁄4") 51 mm (2") 1220 mm
(46")
135-300 kW
(180-400 hp)