Kubota LA463 Operator's Manual page 31

To avoid serious personal injury or death:
A The following engagement points are critical.
1) The lock pins of the quick attach coupler
have to protrude into and through the pin
slots of the attachment on both sides.
It is critical that the pins are in good
condition and without visible signs of wear
or damage and that the operator align the
loader quick attach coupler with the
attachment to allow the pins to go through
the pin slots.
2) Both handles have to be pushed down until
the handles contact the ear plates near the
points where the pin bolt goes through the
handle (A).
3) Do not operate the tractor or attachment
unless all of the above conditions are met.
(1) Handle
(2) Ear plate
(3) Pin slot
(4) Lock pin
(A) The handle contacts the ear
plate at the points.
OPERATING THE LOADER
6. Visually verify when pushing the quick attach coupler
handles into locked position that the latch pins rotate
completely and are located underneath the stop of the
quick attach coupler.
(1) Latch pins
(2) Quick attach coupler stopper
7. When attaching different attachments visually inspect
for broken or damaged pins. If broken or damaged
pins are found, replace before using. Use of broken
pins may result in attachment detachment or
deformation, causing loss of performance, personal
injury or death.
8. You are now ready to use the attached attachment. All
compatible attachments attach and detach using the
same method.
To avoid personal injury or machine damage:
A Never operate or transport attachments which are
not attached completely.
A Always replace damaged hardware immediately.
19