Xylem GK GV (8203, 8203X) - Manual (Page 47)

a) Fit the pump housing.
b) Fit and tighten the lubricated screws.
Tightening torque: 57 Nm (42 ft-lbs).
6. Adjust the impeller:
a) Measure the distance (C) between the lower edge of the impeller and the pump
housing.
The correct distance (C) is 0.2-0.8 mm (0.0079-0.032 in.).
C
WS001503A
b) Remove the pump housing.
c) Remove the impeller.
If applicable, use the rod.
d) Combine the adjustment washers so the total thickness X corresponds to X=A-B-C.
= A - B - C
e) Tighten the impeller screw.
If applicable, use the rod.
Tightening torque: 80 Nm (59 ft-lbs)
f) Fit the pump housing.
g) Fit and tighten the lubricated screws.
Tightening torque: 57 Nm (42 ft-lbs).
Maintenance
GK, GV (8203, 8203X) Installation, Operation, and Maintenance Manual 45