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GENERAL
7
1.2 RECOMMENDATIONS
REPAIRS AND REPLACEMENT
The following precaution and practices should be
followed in order to reduce risk and conduct efficient
and correct repair.
1. Go through the precaution and general infor-
mation section given for that particular system or
repair in this Workshop Manual.
2. Only
TATA ARIA GENUINE SPARE PARTS
should be used. Similar parts of other models
should not be used, unless they have the same
part number.
3. Do not use standard tools where special tools are
recommended.
4. Whenever any hose is disconnected attach a tag
to identify it.
5. Plug the ports, plugs and other openings of ag-
gregates like FIP, TMC, etc. when remove from
the vehicle.
6. When an assembly is dismantled, all reusable
parts should be arranged in the sequence of its
assembly in a clean enameled tray, in order to fa-
cilitate the assembly.
7. Do not use jack to lift the vehicle for any jobs to
be carried out beneath the vehicle, always use
lifts.
8. Disconnect the battery before conducting any
repairs.
OIL SEALS
NOTE
Ensure that the seal is free from pits, scores, corro-
sion and general damage prior to fitting replacement
seal.
1. Always replace oil seals when rebuilding an as-
sembly.
2. Carefully examine seal before fitting to ensure
that it is clean and undamaged.
3. Coat the sealing lips with clean grease; pack
dust excluder seals with grease.
4. Ensure that seal spring, if provided, is correctly
fitted.
5. Place lip of seal towards fluid to be sealed and
slide into position on shaft, using a fitting sleeve
(5)
when possible to protect sealing lip from
damage by sharp corners, threads or splines. If
the fitting sleeve is not available, use plastic tube
or tape to prevent damage to sealing lip.
6. Grease outside diameter of seal, place on the
housing and press into position, using great care
and if possible a ’bell piece’
(6)
to ensure that
seal is not tilted. In some cases it may be prefer-
able to fit seal to housing before fitting to shaft.
Never let weight of unsupported shaft rest in seal.
7. If correct service tool is not available, use a suita-
ble drift approximately 0.4 mm
(0.015 in)
smaller
than outside diameter of seal. Use a hammer
VERY GENTLY on drift if a press is not suitable.
8. Press or drift seal in to depth of housing if hous-
ing is shouldered or flush with face of housing
where no shoulder is provided. Ensure that the
seal does not enter the housing in a tilted posi-
tion.
NOTE
Most cases of failure or leakage of oil seals are due
to careless fitting, and resulting damage to both
seals and sealing surfaces. Care in fitting is essential
if good results are to be obtained.
Never use a seal
which has been improperly stored or handled,
such as hung on a hook or nail.