SUZUKI GRAND VITARA 1987 Service User Guide

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O-5. METRIC INFORMATION
METRIC FASTENERS
Most of the fasteners used for this vehicle are
metric. When replacing any fasteners, it is most
important that replacement fasteners be the
correct diameter, thread pitch and strength.
FASTENER STRENGTH IDENTIFICATION
Most commonly used metric fastener strength
property classes are 4T, 7T and radial line with
the class identification embossed on the head of
each bolt. Some metric nuts will be marked with
punch mark strength identification on the nut
face. Fig. O-10 shows the different strength
markings.
When replacing metric fasteners, be careful to
use bolts and nuts of the same strength or
greater than the original fasteners (the same
number marking or higher). It is likewise impor-
tant to select replacement fasteners of the
correct size. Correct replacement bolts and
nuts are available through the parts department.
NUT STRENGTH
IDENTIFICATION
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METRIC BOLTS - IDENTIFICATION CLASS NUMBERS OR MARKS CORRESPOND TO
BOLT STRENGTH - INCREASING NUMBERS REPRESENT INCREASING STRENGTH.
Fig. O- 10 Bolt Strength Markings
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STANDARD TIGHTENING TORQUE
Each fastener should be tightened to the torque specified in each section of this manual. If no description
or specification is provided, refer to the following tightening torque chart for the applicable torque for
each fastener. When a fastener of greater strength than the original one is used, however, use the torque
specified for the original fastener.
NOTE:
l For the flanged bolt and nut, add 10% to the tightening torque given in the below chart
l The below chart is applicable only where the fastened parts are made of steel or light alloy.
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SECTION 1
PERIODIC MAINTENANCE SERVICE
CONTENTS
1-1. MAINTENANCE SCHEDULE..................................
1-2.ENGINE AND EMISSION CONTROL...........................1-5
1-3.CHASSIS AND BODY......................................1-17
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MAINTENANCE RECOMMENDED UNDER SEVERE DRIVING CONDITIONS
If the car is usually used under the conditions corresponding to any severe condition code given below, it
is recommended that applicable maintenance operation be performed at the particular interval as given in
the below chart.
Severe condition code
A -Towing a trailer
B- Repeated short trips
C - Driving on rough and/or muddy roads
D - Driving on dusty roads
E- Driving in extremely cold weather and/or
salted roads
F- Repeated short trips in extremely cold weather
Severe
Condition CodeMaintenanceMaintenance
OperationMaintenance Interval
A--DEFEngine oil and oil filter_ REvery 3 750 miles
(6 000 km) or 3 months
ABC- E-Exhaust pipes and mountingsIEvery 7 500 miles
(12 000 km) or 6 months
IEvery 3 750 miles
D(6 000 km) or 3 months--- --Air cleaner filter element * 1
REvery 15 000 miles
(24 000 km) or 12 months
----E-Choke system (Carburetor shafts)I&LEvery 7 500 miles
(12 000 km) or 6 months
----E-Distributor cap and Ignition wiring “2IEvery 15 000 miles
(24 000 km) or 12 months
ABCD--Brake discs and pads (Front)IEvery 7 500 miles
Brake drums and shoes (Rear)( 12 000 km) or 6 months
ABC---Propeller shaftsI&LEvery 7 500 miles
(12 000 km) or 6 months
Every 15 000 miles
A-C---Transmission, transfer and differential(24 000 km) or 12 months
oilRAfter first replacement at
7 500 miles (12 000 km)
CEvery 15 000 miles-- ---’ Leaf springsI(24 000 km) or 12 months
C-- ---Bolts and nuts on chassisTEvery 7 500 miles
(12 000 km) or 6 months
CSteering wheel free play, gear box oil-- ---and linkageIEvery 3 750 miles
(6 000 km) or 3 months
--C-E-Steering knuckle oil sealsREvery 15 000 miles
(24 000 km) or 12 months
MOTES:
I- inspect and correct or replace if necessary
R - Replace or change
T - Tighten to the specified torque
L - Lubricate
* 1Inspect more frequently if the vehicle is used under dusty conditions.
*2In areas where road salt is used, inspect and clean the distributor cap and ignition wiring more
frequently.
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