Husqvarna 250 PS Workshop Manual page 42

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42
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Heat the pump around the shaft and gently tap the shaft
with a copper or lead mallet. If the shaft with its bearing
and sealing ring does not come out then apply more
heat.
Assembly
Heat the pump and gently tap the pump shaft in. Place
the key in the pump shaft. Fit the cog, pump cogs and O
ring, then bolt on the cover. Fit the pump in the tank.
Bar and shaft
Removal
Remove the cover from the chain drive cog. Loosen the
tensioning bolts and remove the chain tensioner, bar and
chain.
Do not lose the O ring that sits under the chain
tensioner.