MSD 2922 Fuel Pump Return Kit Installation User Manual
Page 5

INSTALLATION INSTRUCTIONS
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PROPER INSTALLATION OF PUSH-LOCK AN FITTINGS
IN AEROQUIP AQP HOSE
Proper installation of push-lock fittings BEGINS with the first cut of the hose. The hose end must be
cut squarely and cleanly. If these two requirements are not met, the connection is compromised from
the start. See Figure 5 and 6 for additional information on achieving a proper cut.
Figure 5 Correct Clean, Square Cut
NOTE: THERE IS MINIMAL DISTURBANCE
OF THE OUTER JACKET, BRAIDS,
AND INNER LINER. THIS TYPE
OF CUT IS ACHIEVED WITH A
HOSE CUTTER, NEW RAZOR
BLADE, OR EXTREMELY SHARP
(NON-SERRATED) KNIFE. THE
HOSE SHOULD BE SEVERED
COMPLETELY – REQUIRING NO
TEARING OF BRAIDS AND / OR
RUBBER MATERIAL WHEN THE
CUT IS COMPLETE. THE CUT
PLANE IS PERPENDICULAR TO THE
LONGITUDINAL HOSE AXIS.
Figure 6 Incorrect Jagged, Rough Cut
NOTE: THERE IS VISIBLE DAMAGE TO THE
OUTER JACKET, BRAIDS, INNER
LINER, OR ANY COMBINATION
THEREOF. THIS TYPE OF CUT
RESULTS FROM THE USE OF A
DULL KNIFE, SERRATED KNIFE,
“ S A W I N G A C T I O N ” W H I L E
CUTTING, THE USE OF SIDE-
CUTTING PLIERS THAT CRUSH
THE HOSE WHILE CUTTING, OR
ANY TYPE OF CUTTER THAT
UTILIZES SHEARING ACTION.
THE CUT PLANE IS GENERALLY
N O T P E R P E N D I C U L A R T O
LONGITUDINAL HOSE AXIS.
Apply a light coating of fresh motor
oil to the fitting barbs. More is
NOT better – too much oil results
in a slippery mess which makes it
impossible to get a tight grip on the
hose.
To the extent possible, make sure
the push-lok fitting is well anchored
– whether it is in a vise, connected to
another stationary fitting, or against
a hard surface. You WILL NOT get
good results by trying to hold the
fitting in one hand, and the hose in
the other. Likewise, you WILL NOT
get good results if you cannot apply
sufficient force to fully engage the
fitting barbs in one smooth motion.
Having to stop and twist, and then
resume pushing, typically results
in an inferior connection - requiring
that you cut the hose off the fitting
and start again. This means that
you should not try to push the hose
on the fitting when leaning over the
engine while standing on an old
milk crate.