Four-Wheel Drive; Mechanical Transmission - Shibaura ST318 Operator's Manual

FOUR-WHEEL DRIVE

The shift lever for the four-wheel drive is located
on the right-hand of the seat, Figure 18.
Full upward, the lever disengages the four-wheel
drive(OFF). Full downward, it engages the four-
wheel drive(ON).
Figure18 - Four - Wheel Drive Lever
To engage the four-wheel drive, depress the clutch
pedal fully and move the four-wheel drive lever full
downward. To disengage, move the lever full up-
ward.
IMPORTANT ： ： ： ： The front wheel drive should be
used when additional traction is required while op-
erating in loose soil, wet, slippery conditions or on
slopes.
For normal operation on firm soil, level hard sur-
faces and roading the unit at high speeds, front
wheel drive should be disengaged to maximize tire
and line life and fuel economy.
MECHANICAL TRANSMISSION MODELS
(9x3 TRANSMISSION)
TRANSMISSION GEARSHIFT LEVERS
The transmission main shift lever ① and range
selector lever ②, are shown in Figure 19.
CONTROLS, INSTRUMENTS AND OPERATIONS
A diagram showing the shift pattern is on the bezel
around the gearshift lever.
Three forward and one reverse speeds are pro-
vided for each of the two ranges. This provides a
total of 6 forward and 2 reverse speeds.
With a nine speed transmission the range lever
provides three ranges. This provides a total of 9
forward and 3 reverse speeds.
Ground speeds for the various gear ratios can be
found on page 56.
IMPORTANT： ： ： ： Do not attempt change gears while
the tractor is moving. The mechanical transmission
is not synchronized. The clutch pedal must be de-
pressed and tractor motion stopped to change gear
ratios with the main shift lever or the range shift
lever.
Figure 19 - Transmission Controls
SPEED RANGE
1 L
2
3
4 H
5
6
1
R L
2
R H
MAIN
1
2
3
1
2
3
R
R
17