Man D 2866 LE 401, Repair Manual

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2
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Raw water pump
50
Changing impeller
Fig. 1
Remove cover (8 mm).
Fig. 2
The impeller can be removed only together with
the cam.
Note:
The impeller will be destroyed if it is forcibly
pulled out without the cam.
To do this, remove the cap screw in the pump
housing between the suction and the compression
neck using a screwdriver.
Fig. 3
Pull out impeller together with the cam using a pair
of pliers.
Exchange worn or damaged impeller together with
the wearing parts (repair kit) (observe the direction
of rotation).
Coat new impeller slightly with Vaseline before as-
sembling it.
When assembling, secure cap screw with
Loctite 648.
Fit cover with new seal.
Operating the impeller while it is dry entails irrepa-
rable damage. Fill pump with water before com-
missioning it and check it for leaks.
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