Leveling Front Mower; Weight Transfer - Jacobsen R-311T Maintenance Manual

3 ADJUSTMENTS

3.15 LEVELING FRONT MOWER _________________________________________________

1. Before leveling the front deck, the mower tires, and
caster wheels must be properly inflated. The cutting
height is directly related to the radius of the tire.
2. Set the cutting height of the front mower to 5-1/2 in.
(140 mm).
3. Rotate all blades so that one end of the blade (A) is
pointing forward.
4. Fully lower front deck. Measure from the ground to
point (A) and from the ground to point (B). Point (B)
must be 1/8 in. (3 mm) higher than point (A).
5. Add or remove shims (C) as required between
bumper pad (D) and lift arm (E).
6. Once the front mower has been properly leveled,
the cutting height may be readjusted without
changing the shims. It may be necessary to re-level
the deck if there is a change to the tires.

3.16 WEIGHT TRANSFER _______________________________________________________

1. Adjusting weight transfer knob affects lowering time
of the lift arms and also affects ground pressure at
each tire.
2. Loosen thin knob (J), and adjust large knob (K) to
increase or decrease cutting unit weight. Knob
adjusts all three mowers simultaneously.
a. Increasing cutting unit weight allows mowers to
follow contours of ground better and reduces
mower ground pressure.
b. Decreasing cutting unit weight increases mower
weight, which increases traction on slopes.
c. Once desired ground pressure has been
obtained, tighten thin knob (J).
NOTICE
If cutting unit weight is set too low, wing cutting units
will not lower to the ground from transport position.
16
A
B
E
J
K
A
A
B
B
Figure 3N
D
C
Figure 3O
INCREASE
DECREASE
Figure 3P