Manual 2017 Rev C p/n 2017
33
08
Disassembly and Reassembly
Figure 8-9 – Tapping Bearings Out of End Plates
16. Remove the seals from both end plates with a
punch or dull chisel. The seals will be damaged
during removal and must be replaced. Inspect
all parts for wear or damage.
17. Clean and inspect all parts for burrs, and polish
the seal journals with at least 320-grit emery or
crocus cloth.
REASSEMBLY OF BLOWER
After thoroughly cleaning the seal and bearing
bores of both end plates, apply a thin coat of
sealant on the outside diameter of the new seals
and press them into the end plate using a tool that
will bear on the outer edge of the seal. The spring
side of the seal should be facing you. Apply a thin
coat of grease to the seal lip.
See
Special Tool Drawings on page 44
for
drawings and dimensions of the seal and bearing
pressing tools.
Using the drive end plate as a
¿
xture, support the
plate high enough so the input shaft of the drive
rotor clears the assembly surface (see
Figure
8-10
). Place the rotors in the
¿
xture with the drive
rotor to the left (see
Figure 8-10
and
Figure 8-14
).
Figure 8-10 – Rotors Assembled on Drive End Plate
(Model 4000 with Tri-Lobe Rotors Shown)
Figure 8-11 – Tapping Bearings into End Plates
