b) Open the door or container as outlined in paragraph 126.96.36.199.
c) With the door or container open, throw the locking bolt(s) to
the locked position. If the unit has a bolt interlock, it will be necessary
to depress the interlock plunger before the bolt(s) can be thrown to a locked
d) With the locking bolt in the locked position, turn the dial at
least four revolutions in one direction.
e) Add 10 to each number of the old combination. Proceed to open
the lock as directed in paragraph 188.8.131.52, steps a) through c). Do not
execute step d). For example, if the old combination is 20-71-31, adding 10
will yield 30-81-41. The dial is stopped and held in place after the last
number, 41, is dialed.
f) Insert the change key
into the keyhole in the back of the lock
(refer to Figures 30 and 31). The
key is fully inserted when the bend in the
key reaches the cover plate. Turn
the key in the direction indicated on the
back of the lock until it will not
turn any farther. Do not force the key.
On some units, it may be necessary to remove a
cover or door panel to expose the back of the
g) Add 10 to each number of the new combination.
h) Turn the dial LEFT, stopping when the first number of the new
combination plus IO aligns with the index the fourth time.
i) Turn the dial RIGHT, stopping when the second number plus 10
aligns the third time.
j) Turn the dial LEFT, stopping when the third number plus 10 is
aligned the second time. Hold the dial in this position.
k) Turn the change key in the direction opposite to the arrow on
the lock and remove the key.
1) Work the new combination at least three times with the door or
container open to verify that the combination is properly set and the lock is
operating smoothly. If the new combination fails to operate, call for a