Isuzu N-Series. Service manual — part 36
0B-22 MAINTENANCE AND LUBRICATION
Maintenance Schedule under Severe Driving Conditions
Severe driving conditions
A : Repeated short trips
B : Driving on rough roads
C : Driving on dusty roads
D : Driving in extremely cold weather and/or on salted roads
Item
Interval
Condition
A
B
C
D
A+D
Engine oil
Change every 5,000 km (3,000 miles)
❍
❍
Engine oil filter
Replace every 5,000 km (3,000 miles)
❍
❍
Air cleaner element
Replace every 20,000 km (12,000 miles)
❍
Exhaust pipes and mountings for
looseness or damage
Inspect every 10,000 km (6,000 miles)
❍
❍
❍
Manual transmission oil and dif-
ferential gear oil
Change every 20,000 km (12,000 miles)
❍
[SA] Smoother clutch fluid
Change every 20,000 km (12,000 miles)
❍
Universal joints and sliding
sleeve grease
Lubricate every 10,000 km (6,000 miles)
❍
Kingpins
Lubricate every 5,000 km (3,000 miles)
❍
❍
Steering system for looseness or
damage
Inspect every 5,000 km (3,000 miles)
❍
Brake linings and drums for wear Inspect every 5,000 km (3,000 miles)
❍
❍
❍
Disc brake pads and discs for
wear
Inspect every 5,000 km (3,000 miles)
❍
❍
❍
MAINTENANCE AND LUBRICATION 0B-23
For Europe
When performing the checks on the following items, regular inspection items should also be checked.
Abbreviations
I :Inspect, clean and correct or replace as necessary
A : Adjust
R : Replace or change
T : Tighten to specified torque
L : Lubricate
[V] : Variation (optional on some models).
[OPT] : Optional equipment.
[SA] : For Smoother model only.
*Marks: Under severe driving conditions, more frequent maintenance is required. Refer to “Maintenance schedule un-
der severe driving conditions”.
Maintenance Schedule: 4JH1-TC Engine Model (Engine Oil that Meets or Exceeds ACEA B3 Speci-
fication)
SERVICE INTERVAL:
(Use odometer
reading or months
Whichever comes
first)
× 1,000
km
20
40
60
80
100
120
× 1,000
mile
12
24
36
48
60
72
ENGINE
*Engine oil
R
R
R
R
R
R
Or every 9 months
*Engine oil filter
R
R
R
R
R
R
Or every 9 months
Fuel filter
R
R
R
R
R
R
Or every 18 months
*Air cleaner element
I
I
R
I
I
R
Or every 36 months
Idling speed and acceleration
—
I
—
I
—
I
Or every 18 months
Valve clearances
—
—
A
—
—
A
Or every 36 months
Fuel tank cap and fuel pipes for
loose connections or damage
—
—
I
—
—
I
Or every 36 months
Drive belt tension and damage
I
I
I
I
I
I
Or every 9 months
Radiator coolant
—
—
R
—
—
R
Or every 36 months
*Exhaust pipes and mountings
for looseness or damage
—
I
—
I
—
I
Or every 18 months
Cooling system for water leak-
age
—
I
—
I
—
I
Or every 18 months
Engine operation condition
I
I
I
I
I
I
Or every 9 months
CLUTCH
Clutch fluid
I
I
R
I
I
R
Or every 24 months
Clutch pedal travel and free play
I
I
I
I
I
I
Or every 6 months
TRANSMISSION
*Manual transmission oil
I
I
R
I
I
R
Or every 24 months
Gear control mechanism for
looseness
—
—
I
—
—
I
Or every 24 months
Gear control cables
—
A
—
A
—
A
Or every 12 months
PROPELLER SHAFT
*Universal joints and sliding
sleeve grease
L
L
L
L
L
L
Or every 12 months
0B-24 MAINTENANCE AND LUBRICATION
Loose connections
I
I
I
I
I
I
Or every 6 months
Splines for excessive wear
—
—
I
—
—
I
Or every 24 months
Bearings and related parts for
looseness
—
—
I
—
—
I
Or every 24 months
Center bearing
L
L
L
L
L
L
Or every 12 months
REAR AXLE
*Differential gear oil
I
I
R
I
I
R
Or every 24 months
FRONT AXLE
*Kingpins
L
L
L
L
L
L
Or every 9 months
STEERING
Power steering system oil leak-
age
I
I
I
I
I
I
Or every 9 months
Power steering system for
looseness or damage
I
I
I
I
I
I
Or every 9 months
Power steering fluid
—
—
R
—
—
R
Or every 36 months
Power steering hoses
—
—
—
—
—
R
Or every 72 months
Fitting of knuckles and front axle
for looseness
I
I
I
I
I
I
Or every 9 months
Steering mechanism for loose-
ness or damage
—
—
I
—
—
I
Or every 36 months
Ball joints for damage (Indepen-
dent suspension model only)
I
I
I
I
I
I
Or every 9 months
Ball joints for excessive play
(Independent suspension model
only)
I
I
I
I
I
I
Or every 9 months
Relay lever shaft for excessive
play (Independent suspension
model only)
I
I
I
I
I
I
Or every 9 months
Steering wheel play
I
I
I
I
I
I
Or every 9 months
Steering function
I
I
I
I
I
I
Or every 9 months
Wheel alignment
—
—
I
—
—
I
Or every 36 months
SERVICE BRAKES
Brake fluid
I
I
R
I
I
R
Or every 36 months
Brake system for fluid leakage
I
I
I
I
I
I
Or every 9 months
*Brake linings and drums for
wear
I
I
I
I
I
I
Or every 9 months
*Disc brake pads and discs for
wear
I
I
I
I
I
I
Or every 9 months
Brake pedal travel and free play
I
I
I
I
I
I
Or every 9 months
Pipes and hoses for loose con-
nections or damage
I
I
I
I
I
I
Or every 9 months
PARKING BRAKE
SERVICE INTERVAL:
(Use odometer
reading or months
Whichever comes
first)
× 1,000
km
20
40
60
80
100
120
× 1,000
mile
12
24
36
48
60
72
MAINTENANCE AND LUBRICATION 0B-25
(I): Inspect and correct or replace as necessary (A): Adjust (R): Replace or change (T): Tighten to specified torque
(L): Lubricate
Parking brake cables
I
I
I
I
I
I
Or every 9 months
Parking brake function
I
I
I
I
I
I
Or every 9 months
Parking brake lever travel
I
I
I
I
I
I
Or every 9 months
Linings for wear
—
—
I
—
—
I
Or every 36 months
Drum for wear or damage
—
—
I
—
—
I
Or every 36 months
Ratchet for wear or damage
—
—
I
—
—
I
Or every 36 months
SUSPENSION
Spring leaves for damage
I
I
I
I
I
I
Or every 9 months
Torsion bar spring (Independent
suspension model only)
I
I
I
I
I
I
Or every 9 months
Ball joint boots for damage
(Independent suspension model
only)
I
I
I
I
I
I
Or every 9 months
Ball joints for excessive play
(Independent suspension model
only)
—
—
I
—
—
I
Or every 36 months
Mounts for looseness or dam-
age
I
I
I
I
I
I
Or every 9 months
Shock absorbers for oil leakage
I
I
I
I
I
I
Or every 9 months
Shock absorbers mount for
looseness
I
I
I
I
I
I
Or every 9 months
Upper links (Independent sus-
pension model only)
L
L
L
L
L
L
Or every 9 months
WHEELS
Wheel pins and nuts
—
T
—
T
—
T
Or every 18 months
Wheel discs for damage
—
I
—
I
—
I
Or every 18 months
Hub bearings grease
—
—
R
—
—
R
Or every 36 months
Tire pressures and damage
I
I
I
I
I
I
Or every 9 months
ELECTRICAL EQUIPMENT
Specific gravity of battery elec-
trolyte
I
I
I
I
I
I
Or every 9 months
OTHERS
Lights, horn, windshield, wiper
and washers
I
I
I
I
I
I
Or every 9 months
Bolts and nuts on chassis and
body
—
—
I
—
—
I
Or every 36 months
SERVICE INTERVAL:
(Use odometer
reading or months
Whichever comes
first)
× 1,000
km
20
40
60
80
100
120
× 1,000
mile
12
24
36
48
60
72
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