Hudson Sales & Engineering 5000 Series installation manual Blade Installation, SET Pitch and Track

THRUST RETAINER (optional equipment)

Install proper load bolt (not provided) into top of fan shaft and tighten (See Figure 1). 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.

	EYE BOLT
		THRUST RETAINER
JAM NUT		CHANNEL W/ NUT

HUB SPOOL
BOLT
	HUB PLATE
CUSTOMER
PROVIDED
BOLT	HUB SPOOL
FAN SHAFT

Figure 1

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 2). The thick lead- ing edge will be to your left and thin trailing edge will be to your right as you stand at end of blade.

Figure 2

Install clamp bolts through hub plates and blade clamp, putting bolt heads on top, lock washers and nuts on bottom. Tighten lightly (See Figure 3).

Figure 3

SET PITCH AND TRACK

Use Hudson EXACT-A-PITCH®digital protractor (See Figure 4) or a bubble protractor to set blade pitch. Mount protractor on a flat bar as a base and place it approximately 1” from tip of blade. Note pitch on protractor. Rotate fan 360˚, noting high and low pitch readings. Locate place where pitch reading is at mid-point between high and low readings, and set pitch at that point.

Figure 4

Installation Manual 5000 Page 3 of 8 August 2000