
OPERATION
43
DIFFERENTIAL LOCK OPERATION
FIG. 5-17:
Differential lock pedal (2) should only be
depressed when required as steering ability is greatly
reduced. To engage the differential lock, depress the
clutch pedal and allow all rear wheel movement to stop.
Depress the lock pedal and slowly engage the clutch. To
disengage the differential lock, depress the clutch pedal.
The Differential Lock pedal should normally return to the
“off” position.
IMPORTANT: Depress the main clutch pedal and stop
the tractor before engaging the differen-
tial lock.
CAUTION: When the differential lock is en-
gaged, steering ability of the tractor will be
greatly reduced. Disengage before attempt-
ing a turn. Do not use during transport.
Dif-lock pedal is located at left side for HST-
type, and right side for mechanical type.
FOUR-WHEEL DRIVE
FIG. 5-18 :
The four-wheel drive shift lever 1 engages
and disengages the drive for the front axle. With the le-
ver down, the front axle (4WD) is engaged and power is
available to both front and rear axles. With the lever up,
the front axle is disengaged.
NOTE: Illuminate the monitor lamp on the meter panel
when 4WD control lever is pushed down.
IMPORTANT: Depress main clutch pedal and stop
tractor before engaging or disengaging
four-wheel drive. Do not use 4-WD on
hard surfaces. Rapid wear of the front
tyres and possible drive line damage
could occur if 4-WD is operated for pro-
longed periods on hard surfaces.
FIG. 5-19:
When the front axle drive is engaged, the
ground speed of the front tyres will vary from that of rear
tyres. This is to assist steering when four-wheel drive
is selected. For this reason, the front axle must be dis-
engaged when the tractor is transported or operated on
a hard, dry surface. Failure to do so will result in rapid
wear of the front drive tyres and possible driveline dam-
age.
IMPORTANT: Always disengage front drive axle when
operating in conditions with minimal
wheel slippage (DRY OR HARD SUR-
FACES).
If tire replacement is necessary, identical
replacements must be installed to main-
tain correct front/rear axle ratio.
2
FIG. 5-17
2
2
4
1
FIG. 5-18
FIG. 5-19