Tata Sumo Victa Owner's Manual & Service Book - Tata Motors ...

WHEELS AND TYRES
Jack location at front
Wheels and tyres
Always use only recommended size wheel rims and tyres.
Use of rims and tyres not recommended by us may have
adverse effect on vehicle safety and further more could
infringe on motor vehicle regulations.
Wheel change
When changing wheels use the jack provided with the
vehicle.
Jack should be placed below chassis long member behind
front wheel for changing front tyres and before rear wheel as
shown.
Wheel alignment
If uneven tyre wear is noticed, get the vehicle examined and
VEHICLE MAINTENANCE
Jack location at rear
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attended by Tata Motors authorised workshop. Periodically
check and maintain correct tyre pressure to obtain longer
tyre life.
Recommended tyre pressures :
( with cold tyres )
For LT 215/75 R15 106 Q Tyres
At Unladen Laden
At rated GVW
Front 35 psi 35 psi
(2.4 bar) (2.4 bar)
Rear 35 psi 50 psi
(2.4 bar) (3.4 bar)
Tightening wheel nuts
VEHICLE MAINTENANCE
Check tyres for damage from time to time and remove any
foreign bodies (nails/stones, metal chips etc.) embedded in
treads.
While fitting wheels on the vehicle make sure that wheel
bolts are free from dust, scratches, dirt, dents, etc.
Do not oil wheel bolts and nuts. Wipe off any adhering
oil on bolts/nuts
Tightening torque of wheel nuts :12-15 mkg. Retighten
wheel nuts after 100 km of every wheel change.
New tyres do not give maximum grip straightway and
should therefore be run-in at moderate speed for the
first 100 km. This will help to make the tyres last long.
To avoid damage to tyres and wheels, drive slowly over speed
breakers / bumps / rough roads.
Wheel balancing
Wheels of your vehicle are balanced. The same should be
maintained when repairing a tyre or tube and replacing the
tyre or rim.
Repairing a tyre / tube
Mark suitably the tyre position (If original colour dot mark is
not visible) with respect to valve stem hole to ensure that
tyre is refitted in original location. Ensure that the balancing
weights are not disturbed during removal of tyres. Check the
balance weight prior to removal of tyre, if found loose, mark
its location on the rim and refit properly.
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WHEELS AND TYRES
Replacing a tyre / rim.
When the tyre or rim is changed the wheel should be
properly balanced on a machine after inflating to the
specified value as per the following norms.
1. Permissible imbalance for tyre with rim = 250 gm-cm
max.
2. Permissible balance weight for tyre with rim = 140 gm
max.
3. Relocate the tyre if the weight required to balance is
more than 140 gm.
4. Balance weights are available from 10 gm to 90 gm in
steps of 10 gm and from 80 to 140 gm in steps of 20 gm.
5. Do not use more than one balance weight on side.