Remove fuel pump drive bolt (24), key
washer (25), disc (26), and spacer
(27) from shaft of rotor (6). Discard
Remove four fillister head screws (28)
securing end plates (22 and 23) to
blower housing (29).
Place flanges of gear and bearing
pullers (with center backed out) flat
against face of rear end plate (22).
Bolts must be threaded all the way
into tapped holes of end plate to
provide maximum anchorage for
pullers and to eliminate possible
damage to end plate.
Aline holes in puller flanges with
tapped holes in end plate (22).
Secure pullers to end plate with six
1/4-24 x 11/4-inch bolts.
Turn two pullers uniformly and
remove rear end plate (22) from
blower housing (29) and shafts of
rotors (6 and 7). Remove pullers and
rag from rotors.
To avoid damage to rotors, handle
them with care. Do not force rotors
out of housing and pull out slowly
To remove front end plate (23), repeat
steps (12) thru (14).
Remove rotors (6 and 7) from blower
Support outer face of rear end plate
(22) on two wood blocks. Place long
end of oil seal installer through oil
seal ring collar (30) or lip-type seal
(31). Tap two rear roller bearings (32)
and two collars or seals from end
plate. If unit has oil seals, discard