Important Technical Information; Belt Tension - TATA Motors Nano Owner's Manual & Service Book

IMPORTANT TECHNICAL INFORMATION

BELT TENSION :

Check the conditions of belts on the
engine. Examine the edge of the belt
for cracks or fraying.
Check the tension of the belt by
pushing on it with your thumb for
Alternator belt and AC compressor
belt at location indicated. It should
be 5 to 6 mm.
If the belt tension is not proper, get
it attended at the nearest authorised
service outlet.
Correct tension of the belt is very
critical from belt life and belt noise
point of view. It is recommended that
belt tension should be measured with
1. Alternator Belt
2. AC Compressor Belt
78
clavis gauge
recommended values as given below
Alternator Belt
Frequency should be checked in
middle of lower span of belt.
New belt to be re-tensioned to 150 ~
155 Hz (125 ~ 130 Hz for used belt)
on vehicle after running for 15 min.
AC compressor belt
Frequency should be checked in
middle of lower span of belt.
New belt to be re-tensioned to 180 ~
185 Hz (150 ~ 155 Hz for used belt)
on vehicle after running for 15 min.
BELT TENSION
to ensure