Cruise Control Switch; Mow Speed; Weight Transfer - Jacobsen R-311T Parts & Maintenance Manual

3 ADJUSTMENTS
3.6

CRUISE CONTROL SWITCH_________________________________________________

If the cruise control does not disengage when brake pedal is
depressed, cruise control switch must be adjusted.
1. Loosen hardware (F).
2. Adjust switch (G) so contacts are closed with the brake
disengaged and open as soon as the brake pedal is
pressed.
3. Tighten hardware to secure switch and recheck switch
operation.
3.7

MOW SPEED _____________________________________________________________

Cutting quality is better at speeds well below the transport
speed of the mower. An initial mow speed of seven to eight
mph is set at the factory and should be satisfactory for most
cutting conditions. Local turf conditions however may
respond better to a different speed.
To set mow speed, loosen jam nut (R), and adjust stop
screw up to reduce speed, down to increase speed. Tighten
nut to hold adjustment in place.
3.8

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.
en-12
H
J
K
F
G
Figure 3E
Figure 3F
INCREASE
DECREASE
Figure 3G