Isuzu N-Series. Manual - part 1344

Check the exhaust pipe, muffler,
and suspension connections for
looseness or damage.
Steering gear box, linkage and
boots
With the car stopped and engine
off, check for exccessive free-play
in the steering wheel, check the
linkage for bends or damage.
Check the dust boots and ball
joints for deterioration, cracks, or
damage. Replace any damaged
parts.
Wheel bearing grease
Check the wheel bearings and
grease according to the mainte鄄
nance schedule. For inspection
procedures, see Shop Manual.
PAPER ELEMENT TYPE AIR

CLEANER MAINTENANCE
The air cleaner element should be
cleaned or replaced when the dust
indicator light in the cluster comes
on.
Removal and installation of element

1. Loosen the wing nut 淤 and re鄄
move the cover 于 straight and
withdrow the element 盂.
2. Check the element for contami鄄
nation. The cleaning procedure
varies with the degree of contami鄄

nation.
3. After cleaning, install by revers鄄
ing the removal procedure.

Cleaning of element
Dry dust buildup
Blow clean compressed air evenly
up and down from inside the ele鄄
ment to loosen and remove the
dust.

NOTE:
The inner element should be
replaced when he outer ele鄄
ment is replaced.
Note that the inner element is
not washable.

VEHICLE MAINTENANCE REQUIREMENTS

Checks to make after drying

Check the filter paper for damage,
pinholes and thin portions. If a de鄄
fective portion or broken packing is
evident, replace the element with a
new one.

REMOVAL OF CONDENSATE
FROM WATER SEPARATOR

Check the water separator about
once a week. Remove the con鄄
densate before the float 1 in the
water separator reaches the posi鄄
tion of the red line2.
To remove the condensate pro鄄
ceed as follows:
1. Loosen the plug 3 to discharge
the condensate.
2. After the float has come down,

NOTE:
Do not strike the element or hit
it against other object. Make
sure that the pressure of the
compressed air used for clean鄄
ing does not exceed 2 kgf /cm

tighten the plug.
3. Wipe clean the water separator
and its neighborhood.
4. Check for fuel leaks.
BLEED OF FUEL FILTER

If the engine stops by being used
up fuel, cleaning the fuel system or
changing the fuel filter the engine
does not start through fuel is re鄄
plenished due to be come air into
the fuel system .
Air should be removed from the

fuel system to make it start your
engine.
Bleed air by the following proce鄄
dure.
1. Loosen the air bent cock on the
top of the fuel filter.

2. Turn the priming pump couter鄄
clckwise with pressing down and
then the pump piston is pushed
out by a spring.
3. Operate the priming pump until
the fuel without air bubble flow out.

4. Tighten the air bent cock and fix
the pump piston by turning clock鄄
wise with pressing down.
5. Start the engine and check for
fuel leaks.
CHECK RADIATOR AND RADI鄄
ATOR HOSE

Check the radiator 2, radiator hose
3, etc. for water leaks.
Check for the traces of water leaks
on the g round where the vehicle
has been parked. If there are water

VEHICLE MAINTENANCE REQUIREMENTS

leaks in the cooling system, take
the vehicle to the nearest service
shop for service.
Adjustable Generator freeplay

Slightly loosen the generator at鄄
taching bolts and adjust by moving
the whole generator.

REMOVAL OF CONDENSATE
WATER FROM AIR TANK
Open all drain cocks to remove the
water collected in the air tank.

STEERING WHEEL FREE PLAY

Lightly rock steering wheel at the
center position to check for free
play. If the free play exceeds 15 to

CAUTION:
荫 After adjustment, tighten the
bolts and nuts firmly. Overten鄄
sion will cause damage to the
V-belt and bearing.
荫 Make sure that the V-belt is
not fouled with oil or grease. Oil
or grease will cause the belt to
slip and will shorten its life.
荫 When a V-belt is defective,
make sure that the two V-belts
are replaced as a set.

the pedal up to the first resistance
encountered when the pedal is
depressed with your finger. Adjust
this play to about 6 mm (0.24 in.)
by turning the center belt of the
master cylinder push rod.

After

adjusting, firmly tighten the nut on
the center belt while holding the
belt in position with a corench.
1) Master cylinder play:
Approx. 0.24 in. (6 mm)
2) Master cylinder

3) Play adjusting nut

Bleeding of clutch piping
If there is air in the piping, the
clutch will be hard to disengage.

When the fluid reservoir tank has
been emptied, be sure that the
clutch piping is bled. Have an as鄄
sistant in bleeding the piping and
proceed as follows:
1. Fill the clutch fluid reservoir tank
with brake fluid up to the "MAX"
level. Since the level falls during
the bleeding operation, add brake
fluid to prevent emptying the tank.

NOTE:
If the adjustment cannot be
made to this play specification,
the clutch disc is worn down to
the service limit. Take the vehi鄄
cle to your nearest service facil鄄
ity for correction.

35 mm, have the steering wheel
adjusted by your nearest Autho鄄
rized Dealer.
CHECKING

BRAKE

PEDAL

FREE PLAY

Check the pedal free play by de鄄
pressing the pedal with finger.The
pedal free play is the stroke made
by the pedal moves until you feel a
change in resistance.This is the
brake pedal free play. The freeplay
should be within the limits speci鄄

fied in the illustration below. If it is
not, have it inspected by your JAC
dealer and adjusted or repaired if
necessary.

CLUTCH PEDAL PLAY
The clutch pedal play will de鄄
crease as the disc wears. If it is
not adjusted, the clutch will slip,
making it impossible to operate the
vehicle. When the clutch pedal
play has decreased to less than
8.3 in. (210 mm), adjustment is re鄄

quired.
Check the pedal play by depress鄄
ing the pedal with finger. Depress鄄
ing the pedal will make you feel re鄄
sistance in two stages. The pedal
play is the stroke made by the
pedal until it reaches the second
stage and is 0.24 to 0.31 in. (6 to
8mm) standard. The play in the
first stage is the master cylinder
play. In the second stage, it is the
clutch booster push rod play. The
play is easier to check when the
compressed air pressure is lower.
If it is out of specification, have it
inspected and adjusted or re鄄
paired if necessary.
荫 Adjust the clutch master cylin鄄
der play, which is the movement of

VEHICLE MAINTENANCE REQUIREMENTS

2. Remove the rubber cap from the
air bleeder of the clutch booster,
mount one end of a transparent
vinyl hose, and put the other end
in a bowl containing brake fluid.

3. Depress the clutch pedal sever鄄
al times. After the stroke has set鄄
tled, keep the pedal depressed.

Let the assistant loosen the air

bleeder to discharge the air along
with the brake fluid. Let him tighten
the air bleeder immediately after
air has been discharged.

4. After the air bleeder has been
tightened, release the pedal.
5. Repeat steps 3 and 4 until there
are no more air bubbles in the

brake fluid that runs out from the
air bleeder. As a final step, tighten
the air bleer firmly and install the
rubber cap.
6. Check the fluid level in the fluid
reservoir tank and add brake fluid up
to the "H" level. Depress the clutch
pedal to check for fluid leaks.
CHECKING THE BRAKES

NOTE:
If the brake fluid is discharged
from the air bleeder, the stroke
of the pedal will change. Tight鄄
en the air bleeder immediately
after the pedal has touched the
stopper.

CAUTION:
Because brakes are essential to
the safe operation of the car, it
is suggested that they be
checked and inspected by your
JAC dealer. The brakes should
be checked and inspected for
wear at those intervals speci鄄
fied in the vehicle maintenance
schedule in Section 6-3.

VEHICLE MAINTENANCE REQUIREMENTS

WARNING:
Use caution when handling
brake fluid. It can damage your
vision if it get into your eyes. It
will also damage your vehicles
paint if spilled on it and not re鄄
moved immediately.

Checking the Brake Fluid Level

To Check the Fluid Level (If in鄄
stalled)

The fluid level in the brake fluid

reservoir should be checked peri鄄
odically. The level should be be鄄
tween the "L" and "H" marks on the
side of the reservoir. If the level is
at or below the "L" mark, carefully
add fluid to bring it up to "H". Do
not overfill.
COOLANT LEVEL AND LEAKS
IN COOLING SYSTEM

lamp is illuminated add the

coolant after removing the surge
tank cap at firt.

Check reservoir tank for the
coolant level.The coolant level
should be with in the range 1
shown in the illustration. If the level
is low, add coolant by reference to
"Replacement of coolant".

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