Figure 9-19. Pre-Oiler and Pickler
This type of grease gun is cylindrical, holds 14 ounces
of lubricant, and requires two hands to operate. The
lubricant is spring-primed and is delivered at 6,000 psig.
Hand-operated, mini-lube. This type
of grease gun has a gun-shaped dispensing handle,
holds 5 pounds of lubricant, and is operated with one
hand. A7 1/2 foot long hose allows the unit to sit on the
ground while using the dispensing handle.
Principles of operation. Lubricant in the
container portion, under spring-primed pressure, is
allowed to fill a chamber as the lever or handle is
moved in the fill direction. Moving the lever or handle in
the dispense direction forces the lubricant through a
hose or tube and out through the coupler. Acheckball
prevents the lubricant from returning to the container
Safety practices and procedures. The
following special precautions should be observed when
using a grease gun:
· Be sure the grease gun contains clean grease of
the correct grade and type specified for the job.
· Keep the coupler clean to avoid contamination
and introduction of abrasive substances.
Operating procedures. Consult the
applicable aircraft maintenance manual for exceptions
procedures pertain to the operation of the grease gun:
Check the grease gun for the proper