C O N N E C T W I T H C O N F I D E N C E
™
6
ASSEMBLY INSTRUCTIONS:
Install the rear bracket onto the drive unit using the bracket screw
assemblies from the previous step. The handle of the rear bracket
should be to the top of the drive unit. Tighten the screws securely to
125-150 in lbs.
6
5
Place the impeller key (12902A) in the slot located inside the impeller
snout. The impeller (12771A/12772/13772) is now ready to be slid
onto the drive unit shaft. Be sure to align key with the keyway of the
drive unit shaft.
7
Secure the impeller to the drive unit shaft with the impeller bolt
gasket (12774VA) and impeller bolt (12765A). Tighten the impeller
bolt until snug (31-55 in lbs).
8
Install the O-ring segment (12754) onto the rear bracket as shown.
9
10
Install volute (12702A/13702) onto rear bracket using the three volute
screws (12900/12725).Tighten the 3 screws to 8-12 in lbs. Install
check valve (12705) onto the snout of the volute. Drive unit should
be turned over a few times to check for clearance between the two.
A small amount of drag between impeller and volute is ok, however,
if the drive unit will not turn over because of the lack of clearance, a
bracket shim may have to be used.
Verify impeller hex nut (12775A) is located at the bottom of impeller
snout (should be installed). A very light press fit may be required to
install nut into cavity. Install the ceramic seal half into hub of impeller
by using an arbor press or similar tool. Outside diameter of rubber
boot may be sparingly coated with silicone to ease installation.
