TPS-200
Lit. No. 11814, Rev. 00
7
October 1, 2017
6. Install the O-ring segment and O-ring -375. Lightly
coat with silicon grease to secure.
7. Reinstall the volute onto the rear bracket using
the three volute screws. Reinstall the check valve
onto the snout of the volute. The drive unit should
be turned over a few times to check for clearance
between the impeller and volute. A small amount
of drag between the impeller and volute will cause
no problem; however, if the drive unit will not turn
over because of the lack of clearance, a shim may
have to be used.
4. Install the ceramic seal half into the impeller
rubber
fi
rst, with the ceramic surface facing
out. The seal half is pressed into the hub of the
impeller by using an arbor press or similar tool
that will provide a uniform press
fi
t. The outside
diameter of the rubber boot may be sparingly
coated with silicone grease to ease installation.
Be absolutely sure that the ceramic seal half
is bottomed out and installed squarely. If the
installation is not square, seal wobble will occur,
leading to premature seal failure. Care must be
used when handling the seal to not scratch the
seal surface.
5. Install the impeller key shaft and impeller onto the
engine drive shaft. Secure the impeller to the drive
unit shaft with the impeller bolt gasket and the
5/16" x 1-1/8" hex
fl
ange cap screw. Tighten the
cap screw until snug.
Impeller
Bolt
Gasket
Impeller
Impeller
Key
5/16" x 1-1/8" Hex
Flange Cap Screw
O-Ring
Segment
O-Ring
-375
Volute
Rear Bracket
Volute
Screws
Check
Valve
