Adjusting The Axle Position - Exmark Vikingtm Hydro 4500-355 Operator's Manual

Maintenance
Cutting Height Adjustment Table (1 inch to 4 1/4 inches (2.5 cm-10.8 cm)) (cont'd.)
Cutting Axle
Height Position
Range (Figure 9)
2 1/8–
3 1/8 inches
(5.4–7.9 cm) C
2 1/4–
3 1/4 inches
(5.7–8.3 cm) C
2 1/2–
3 1/2 inches
(6.4–8.9 cm) C
2 3/8–
3 3/8 inches
(6.0–8.6 cm) D
2 1/2–
3 1/2 inches
(6.4–8.9 cm) D
2 3/4–
3 3/4 inches
(7.0–9.5 cm) D
3–4 inches
(7.6–10.1 cm) D
2 7/8–
3 7/8 inches
(7.3–9.8 cm) E
3 1/8–
4 1/8 inches
(7.9–10.5 cm) E
3 1/4–
4 1/4 inches
(8.3–10.8 cm) E
Important: Always adjust the Number of Spacers below Caster Hub to correspond to the Axle
Position as shown in table to obtain proper "rake" (blades should always be level to the ground
or tipped slightly down at the front).

Adjusting the Axle Position

Desired cutting height range can be obtained by
adjusting the rear axle and placing caster spacers
above or below the caster arm (see Figure 9 and
Figure 10 along with the Cutting Height Adjustment
Chart).
To adjust rear axle:
1. Stop the machine and move the drive levers to
the neutral lock position.
2. Disengage the PTO.
Number Of Spacers
Below Caster
Support Hub
1/2 3/16
inch inch
(1.2 cm) (.48 cm)
2 1/8 inch
2 0 (5.4 cm)
2 1/4 inch
2 1 (5.7 cm)
2 1/2 inch
3 0 (6.4 cm)
2 3/8 inch
2 1 (6.0 cm)
2 1/2 inch
3 0 (6.4 cm)
2 3/4 inch
3 1 (7.0 cm)
4 0 (7.6 cm)
2 7/8 inch
3 1 (7.3 cm)
3 1/8 inch
4 0 (7.9 cm)
3 1/4 inch
4 1 (8.3 cm)
Number of 1/4 inch (.64 cm) Blade Spacers Below Spindle
4 3
2 3/8 inch
(6.0 cm)
2 1/2 inch
(6.4 cm)
2 3/4 inch
(7.0 cm)
2 5/8 inch
(6.7 cm)
2 3/4 inch
(7.0 cm)
3 inch
(7.6 cm)
3 inch 3 1/4 inch
(8.3 cm)
3 1/8 inch
(7.9 cm)
3 3/8 inch
(8.6 cm)
3 1/2 inch
(8.9 cm)
3. Raise the rear of the machine up onto jack stands
and remove the drive wheels.
28
2 1
2 5/8 inch 2 7/8 inch
(6.7 cm) (7.3 cm)
2 3/4 inch 3 inch
(7.0 cm) (7.6 cm)
3 inch 3 1/4 inch
(7.6 cm) (8.3 cm)
2 7/8 inch 3 1/8 inch
(7.3 cm) (7.9 cm)
3 inch 3 1/4 inch
(7.6 cm) (8.3 cm)
3 1/4 inch 3 1/2 inch
(8.3 cm) (8.9 cm)
3 1/2 inch 3 3/4 inch
(8.9 cm) (9.5 cm)
3 3/8 inch 3 5/8 inch
(8.6 cm) (9.2 cm)
3 5/8 inch 3 7/8 inch
(9.2 cm) (9.8 cm)
3 3/4 inch 4 inch
(9.5 cm) (10.1 cm)
0
3 1/8 inch
(7.9 cm)
3 1/4 inch
(8.3 cm)
3 1/2 inch
(8.9 cm)
3 3/8 inch
(8.6 cm)
3 1/2 inch
(8.9 cm)
3 3/4 inch
(9.5 cm)
4 inch
(10.1 cm)
3 7/8 inch
(9.8 cm)
4 1/8 inch
(10.5 cm)
4 1/4 inch
(10.8 cm)