Plastec Adjustable Dampers - Manual (Page 11)

PL ASTEC VENTILATION, INC.
Installation, Operation & Maintenance Manual
REASSEMBLY INSTRUCTIONS
PLASTEC PSS SERIES STAINLESS STEEL UTILITY BLOWERS
Before beginning these instructions, place this fan on a bench or table top that can
support its weight.
1) Stand the motor on end, so that the shaft is pointing vertically.
2) Set the motor plate onto the C-face and align bolt holes. If motor plate does not fit
flush on the C-face, use a small hammer or dead blow mallet to seat the plate onto the
rabbet. You should not need much force to seat the plate. Secure the motor plate with
four bolts, lock washers and washers. Apply the teflon gasket between the motor plate
and housing.
3) Check the fit of the impeller bushing on the motor shaft. If it slides on easily, then push
it onto the shaft and tap to seat it on the shaft. If it is a tight fit, lubricate the inside of
the bushing with 3-in-1 oil or a similar product. Set the impeller on top of the shaft so
it sits level. Use a driving rod and mallet, on bushing only, to drive the impeller onto the
shaft until it is even with the end of the motor shaft. Do not hit with excessive force or
the bearings may be damaged.
4) Secure the impeller on the shaft with supplied locking screws (2).
5) Cover the bushing with the hub cap gasket and hub cap. Lock in place with two screws
supplied.
6) Select the orientation of the fan housing. There are eight possible orientations.
Remember, if the fan is being installed in a weather hood, the motor will be upside down.
Use eight Hex head screws to secure the motor assembly to the fan housing. Inspect
visually and test electrically before installing the fan. Ensure the teflon gasket is in place.
(See Illustrations)
– 10 –
NOTE: Any new assembly parts or mounting hardware sourced
must be 316 Stainless Steel
July 2012