Volvo Penta TAMD61A, Руководство по ремонту

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8
Safety information
Safety rules for fluorocarbon
rubber
Fluorocarbon rubber is a common material in seal
rings for shafts, and in O-rings, for example.
When fluorocarbon rubber is subjected to high temper-
atures (above 300°C), hydrofluoric acid can be
formed, which is highly corrosive. Skin contact can
give severe chemical burns. Splashes in your eyes
can give severe chemical burns. If you breathe in the
fumes, your lungs can be permanently damaged.
WARNING! Be very careful when working on en-
gines which have been exposed to high
temperatures, e.g. overheating during a seizure
or fire. Seals must never be cut with an oxy-
acetylene torch, or be burned up afterwards in
an uncontrolled manner.
l
Always use gloves made of chloroprene rubber
(gloves for handling chemicals) and protective
goggles.
l
Handle the removed seal in the same way as cor-
rosive acid. All residue, including ash, can be
highly corrosive. Never use compressed air to
blow anything clean.
l
Put the remains in a plastic box which is sealed
and provided with a warning label. Wash the
gloves under running water before removing them.
The following seals are probably made from fluorocar-
bon rubber:
Seal rings for the crankshaft, camshaft, intermediate
shafts.
O-rings irrespective of where they are installed. O-
rings for cylinder liner sealing are almost always made
from fluorocarbon rubber.
Note that seals which have not been subjected to
high temperature can be handled normally.