Adjusting Rear Wheel Tread-Hydraulic Adjust 2006-3073 mm (79-121 In.) Wheel Spacing (If Equipped)

causym CAUTION: Do not modify machine to achieve a tread setting of less than 2006 mm (79 in.). Machine will be unstable and can tip, causing serious injury or death to you or others.

NOTE: Rear wheel tread setting is infinitely adjustable between 2006-3073 mm (79-121 in.). Refer to chart for row spacing-to-tread setting recommendations.

1. Find the specific row spacings of the field in the chart. Read across to the recommended wheel tread.

Row Spacing Wheel tread
mm (in.) mm (in.)
508 (20) 2006 (79)
559 (22) 2362 (93)
609 (24) 2362 (93)
762 (30) 3073 (121)
914 (36) 2006 (79)
965 (38) 2006 (79)
965 (38) (Skip Row) 2718 (107)
1016 (40) 2006 (79)
1067 (42) 2006 (79)
1219 (48) 2362 (93)
1524 (60) 3073 (121)
1626 (64) (Skip Row) 2718 (107)

 

AG,OUO1011,282 -19-27APR99-1/8

2. Loosen lift arm crossbrace hardware (A).


A-Crossbrace Hardware

N42191NA

AG,OUO1011,282 -19-27APR99-2/8

3. Using wrench N203235 (provided), loosen cap screws (B) with jam nuts (A) so frame rides on rollers (C).


A-Jam Nuts
B-Cap Screws
C-Rollers

N42190QN

AG,OUO1011,282 -19-27APR99-3/8

4. When extending axles out, move tie bolts (E) to holes that most closely agree with desired tread width. When retracting axles, move tie bolts to inner position after adjustment is made. Leave tie bolts snug during adjustment.


A-Holes for 3073 mm (121 in.)
B-Holes for 2717 mm (107 in.)
C-Holes for 2362 mm (93 in.)
D-Holes for 2006 mm (79 in.)
E-Tie Bolts

N44232A

AG,OUO1011,282 -19-27APR99-4/8

NOTE: Visual indicators (A) at the rear of each step show rear tread width. Observe indicators while making tread width adjustments.

5. Start engine and drive forward 2-5 Km/h (1-3 mph).

IMPORTANT: DO NOT attempt to adjust both axles at the same time or exceed 2-5 Km/h (1-3 mph). Operate one switch until axle is completely extended/retracted and then adjust axle on opposite side.


A-Visual Indicators

N45615

AG,OUO1011,282 -19-27APR99-5/8

6. While moving forward, depress one wheel adjustment switch (A), until tread indicator shows desired width and drop axle contacts tie bolts; and then second switch to adjust opposite side axle.

7. Stop machine and shut off engine.


A-Switch

N42190PW

AG,OUO1011,282 -19-27APR99-6/8

8. Tighten cap screws (B) to specification, to lift frame from rollers (C). Tighten jam nuts (A).

Specification

Cap Screws -Torque 339 N·m (250 lb-ft)


A-Jam Nuts
B-Cap Screws
C-Rollers

N42190QN

AG,OUO1011,282 -19-27APR99-7/8

9. Tighten lift arm crossbrace hardware (A).

10. Tighten tie bolts to specification.

Specification

Tie Bolts -Torque 271 N·m (200 lb-ft)


A-Crossbrace Hardware

N42191NA

AG,OUO1011,282 -19-27APR99-8/8