Volvo MD5A, Руководство по ремонту

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21. Remove the steel wire which holds the filter. Remove
and clean the wire gauze thoroughly. Afterwards remove the
six screws which hold the cover in position. Discard the
gasket.
Overhauling the sea-water pump
23.
The sea-water pump is a round flange type pump which
means that it can be fitted in a position best suited to the
coolant water hoses. The new pump is fitted with an 0-ring
which forms a seal against the engine.
22. Remove the gearwheel from the housing. Remove the
split pin for the reduction valve. Remove washer 1, spring 2
and piston 3. Clean and replace damaged parts. Assemble
the lubricating oil pump in the reverse order. Note! Fit a new
gasket 4 between the housing and the cover. Fix the wire
mesh 5 in position with the steel wire 6 and finally lay the key
in position and tighten the gearwheel 7.
24. Remove the cover (6 screws). Change the impeller with
the help of two screwdrivers or something similar. Note!
Protect the edges of the pump housing. See the figure. Prise
out the impeller with the screwdrivers so far that the screw
becomes visible.
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