Precautions When Servicing Full-Time 4Wd Vehicles - Toyota Land Cruiser Repair Manual

IN-8 INTRODUCTION — Precautions When Servicing Full-Time 4WD Vehicles
Indicator Light
Center Differential
Lock Switch
Transfer
Select Lever
A/T: P or N Range
M/T: Neutral
PRECAUTIONS WHEN SERVICING
FULL-TIME 4WD VEHICLES
The full-time 4WD Land Cruiser Station Wagon is equipped
with the mechanical lock type center differential system.
When carrying out any kind of servicing or testing on a full-
time 4WD in which the front or rear wheels are made to rotate
(braking test, speedometer test, on-vehicle wheel balancing,
etc.), or when towing the vehicle, be sure to observe the pre-
cautions given below. If incorrect preparations or test proce-
dures are used, the test cannot be successfully carried out,
and may be dangerous as well. Therefore, before beginning
any such servicing or test, be sure to check the following
items:
H
(1) Center differential lock type
N
(2) Center differential mode position (FREE or LOCK)
L
(3) Whether wheels should be touching ground or jacked up
(4) Transmission gear position
(5) Transfer gear position (H or L)
(6) Maximum testing vehicle speed
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(7) Maximum testing time
Also be sure to observe the following cautions:
(1) Never accelerate or decelerate the vehicle suddenly.
(2) Observe the other cautions given for each individual test.
BEFORE BEGINNING TEST
During tests with a brake tester or chassis dynamometer, such
as braking force tests or speedometer tests, if only the front or
rear wheels are to be rotated, it is necessary to set the posi-
tion of the center differential to the FREE position or to the
LOCK position depending on the type of test being performed.
(1) Select the position of the center differential by pushing
(2) After selecting the position, confirm the operation of in-
HINT:
• Move the vehicle backward or forward slightly if the indica-
• When the transfer select lever is put in " L " position, the
• Transfer gear H
H
N
L
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the center differential lock switch with the transfer select
lever to " H " position.
dicator light.
tor light does not operate correctly when the center differ-
ential lock switch is turned ON or OFF.
center differential is put in LOCK condition regardless of the
position of the center differential lock switch.
L gear shifting procedure
Automatic transmission:
When shifting, always put the shift lever of the automatic
transmission in P or N range. In other ranges, the gears of
the transfer clash, and switching cannot occur.
Manual transmission:
When shifting, always put the shift lever of the manual
transmission in neutral.