Propeller Owner’s Manual
147
MAINTENANCE PRACTICES
61-00-47
Page 6-11
Rev. 16 May/20
CAUTION 4:
OVER LUBRICATING AN ALUMINUM HUB
PROPELLER CAN CAUSE THE GREASE
TO ENTER THE HUB CAVITY, LEADING
TO EXCESSIVE VIBRATION AND/OR
SLUGGISH OPERATION. THE PROPELLER
MUST THEN BE DISASSEMBLED TO
REMOVE THIS GREASE.
(8)
Pump a maximum of 1 fl. oz. (30 ml) of grease into the
lubrication fitting, or until grease emerges from the hole
where the lubrication fitting or hole plug was removed -
whichever occurs first.
NOTE: It may be necessary to use a right angle
coupler such as TE559 or equivalent, on the
grease gun to access the lubrication fittings.
Refer to Figure 6-3.
(a) For all tractor or pusher propellers with clockwise
(standard) rotation when viewed from BEHIND the
aircraft, the lubrication fitting is in the ENGINE-SIDE
hub half.
(b) For all tractor or pusher propellers with counter-
clockwise (backward) rotation when viewed from
BEHIND the aircraft, the lubrication fitting that is in
the CYLINDER-SIDE hub half.
Right Angle Coupler for Grease Gun
Figure 6-3
TPI-MB-0358
