ENAR EBRO Serie Manual De Operación página 59

6.5 ADJUSTING THE IMPELLER CLEARANCE
Task
Remember
WATER PUMP
If it is necessary to replace the impeller or the volute insert, be sure clearance between
impeller and insert is adjusted correctly. The impeller (a) should be as close to the insert
as possible without rubbing against it.
•
Remove the spark plug so that engine will not start.
•
Check the clearance between the impeller and insert by slowly pulling the starter
rope to turn the impeller.
If the starter rope is difficult to pull, or rubbing is heard from inside the pump, the impeller
and insert are too close to each other. Remove a shim from behind insert and check
again for rubbing. Continue removing shims until the impeller turns easily.
Note: It is important not to remove too many shims or the clearance between the impeller
and insert will become too wide and the pump performance will be reduced.
As the impeller wears down, additional shims may be required to maintain the clearance
between the impeller and insert..
EBRO 3D
EBRO 2C /3C
EBRO 2C, EBRO 3C, EBRO 3D
en
EBRO 25