Installation Manual 5000MM
Page 3 of 9
May 2019
SEAL DISC HARDWARE INSTALLATION
*Seal disc mounting hardware must be installed BEFORE in-
stalling blades and blade clamps, due to limited access to seal
disc bolt holes.
Install seal disc spacer as shown in Figures 1 and 2. Install
3/8”
bolts on the top hub plate with the threaded portion
pointing upwards. Place spacer on bolt, then flat washer, and
then tighten
3/8”
NC nut to recommended standard of 15 ft
-
lb (lubricated) or 20 ft
-
lb (dry).
Figure 1
Figure 2
THRUST RETAINER
(optional equipment)
Install proper load bolt (not provided) into top of fan shaft and
tighten (See Figure 3). Install thrust retainer channel on top
hub plate using existing hub spool cap screws. Torque cap
screws to 60
-
65 ft
-
lb. Install thrust retainer eyebolt and jam
nut. Hand tighten eyebolt. Tighten jam nut securely against top
of thrust retainer channel.
Figure 3
BLADE INSTALLATION
Remove blade clamp bolts, nuts, lock washers, and blade clamp
halves from hub. Assemble blade clamp halves over groove in
blade neck, and install into hub (See Figure 4). The thick leading
edge will be to your left and thin trailing edge will be to your
right as you stand at end of blade.
Figure 4