Freelander Service Procedures
GENERAL INFORMATION
03-30
Remedial actions
If an accident involving R134a should occur, conduct
the following remedial actions:
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If liquid R134a enters the eye, do not rub it.
Gently run large quantities of eye wash over
affected eye to raise the temperature. If an eye
wash is not available, cool clean water may be
used to flush the eye. After rinsing, cover the
eye with a clean pad and seek immediate
medical attention.
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If liquid R134a is splashed onto the skin, run
large quantities of water over the affected area
to raise the temperature. Implement the same
action if the skin comes in contact with
discharging cylinders. Wrap the contaminated
body parts in blankets (or similar materials) and
seek immediate medical attention.
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If the debilitating effects of inhalation of R134a
vapour is suspected, seek fresh air. If the
affected person is unconscious, move them
away from the contaminated area to fresh air
and apply artificial respiration and/or oxygen
and seek immediate medical attention.
Service precautions
Observe the following precautions when handling
components used in the air conditioning system:
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Air conditioning units must not be lifted by their
hoses, pipes or capillary lines.
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Hoses and lines must not be subjected to any
twist or stress - the efficiency of the system will
be impaired by kinks or restrictions. Ensure that
hoses are correctly positioned before tightening
couplings, and ensure that all clips and supports
are utilised.
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Flexible hoses should not be positioned close to
the exhaust manifold (less than 100mm) unless
protected by heat shielding.
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Completed assemblies must be checked for
refrigeration lines touching metal panels. Any
direct contact of components and panels may
transmit noise and so must be eliminated.
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The appropriate torque wrench must be used
when tightening refrigerant connections to the
stipulated value. An additional spanner must be
used to hold the union to prevent twisting of the
pipe when tightening connections.
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Before connecting any hose or pipe, ensure that
refrigerant oil is applied to the seat of the new
'O' ring seals, BUT NOT to the threads of the
connection.
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All protective plugs must remain in place to seal
the component until immediately prior to
connection.
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Ensure components are at room temperature
before uncapping, to prevent condensation of
moisture from the air that enters it.
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Components must not remain uncapped for
longer than 15 minutes. In the event of a delay,
the caps must be fitted.
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When disconnecting, immediately cap all air
conditioning pipes to prevent ingress of dirt and
moisture into the system.
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The modulator (receiver/drier) contains
desiccant which absorbs moisture. It must be
positively sealed at all times. A modulator that
has been left uncapped must not be used, fit a
new unit.
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The modulator should be the last component
connected to the system to ensure optimum
dehydration and maximum moisture protection
of the system.
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Whenever the refrigerant system is opened, the
modulator must be renewed immediately before
evacuating and recharging the system.
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Use alcohol and a clean lint-free cloth to clean
dirty connections.
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Ensure that all new parts fitted are marked for
use with R134a.
