SHOP MANUAL MT26/31 - 12.2004SHOP MANUAL MT26/31 - 12.2004
GENERAL
CH 0 PAGE 8 CH 0 PAGE 9
GENERAL
SHOP MANUAL MT26/31 - 12.2004SHOP MANUAL MT26/31 - 12.2004
GENERAL
CH 0 PAGE 8 CH 0 PAGE 9
GENERAL
Coolant is used in the engine cooling system.
Risks
The cooling system is pressurized when hot.
Coolant that leaks or bursts out may cause scalding. Coolant
consists of water and corrosion inhibitor, and if necessary, anti-
freeze. The anti-freeze may consist of ethylene glycol.
Ethylene glycol and corrosion inhibitor are injurious and danger-
ous to consume. Splashes in the eyes are dangerous and, in
contact with the skin, such substances can penetrate and cause
dermatitis. Coolant may also consist of other mixtures that may
imply other risks.
Protective measures
If possible, avoid working with coolant lines and containers when
coolant is still hot. Remove the filler cap carefully to release the
pressure. Hot steam and coolant may burst out.If there is a risk
of splashing you must use rubber gloves and protective goggles.
Change clothes if coolant has splashed on them. Contact with
the skin may be dangerous.
Use special equipment for draining and filling e.g.a. cart with
container and pump. It is not permitted to dump coolant in sewer
systems or on the ground.
Protection against coolant
• Preferably wait until coolant has become cold
• Remove filler cap carefully
• Use rubber gloves and protective goggles
• Use special equipment for draining and filling
Refrigerants are used in various thermal equipment e.g. the air
conditioning.
Risks
Refrigeration equipment operates under pressure. A refrigerant
that is leaking may cause frost-bite.
A refrigerant that is leaking and exposed to heat e.g. by a weld-
ing flame or cigarette, evaporates and is very dangerous to
breath.
Protective measures
Always use special equipment when draining or filling refrigera-
tion equipment. This reduces the risk of leakage. Do not loosen
connections on refrigeration equipment without first draining the
system or reducing the pressure. Avoid welding and smoking
when carrying out work that implies a risk of leakage.
Leaking refrigerant is not noticed as the gas is practically odour-
less. The gas is heavier than air and therefore a portable air
evacuator at floor level is suitable.
Protection against refrigerant
• Use special equipment for draining and filling
• Drain system before loosening connections
• Avoid smoking and naked flame
• Use portable air ventilator
0.2.5 Coolant
0.2.6 Refrigerant
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