37- 1- 613 Page 51
FIGURE 7- 31
32. Installation of timing pin and bushing for all models
(see FIGURE 7 - 33).
a.
Install timing pin number 8504125 in the 3/8
”
tapped hole in the gear hub. Turn the pin into
the hub until the threaded end of the pin is
flush with the back of the gear hub.
b.
Place bushing number 8504126 in the 1/2
”
diameter hole in the gear over the tapered
end of the timing pin. If the tapered hole in
the bushing does not line up with the tapered
pin, insert a screwdriver through the bushing
and turn the pin counterclockwise until the
bushing drops down over the pin.
c. Install number 8-32 x 5/8
” long socket head
cap screw (48) and flat washer (47) in the end
of the pin and draw up tight.
To remove the bushing from the gear,
first loosen and remove four (4)
socket head cap screws, then remove
No. 8- 32 screw and flat washer.
Install a 1/2”- 12 NC nut on the
threaded portion of the bushing,
tighten the nut until the bushing is
loose and can be lifted from the gear.
When timing is completed, remove the indicator, button
bracket and gear hub retainer plate. Install the hub
retainer plate (11) with the pilot in the hub bore with
three Nylok type screws (41). Install the gasket (20)
and carrier cover plate (13). Clean both carrier
breathers (29). Referring to
“Lubrication,” page 14, fill
the carriers with proper oil. Cover all openings to
prevent dirt from entering the blower during trans-
portation and installation. If the blower is to be stored,
refer to
“Storage” in the Maintenance Section.
