c) Make sure bolt is in the locked or engaged position by pulling
the bolt o
d) Remove back cover of the lock.
e) Securely fasten lock to mounting plate by installing the four
lock-attaching screws and tightening.
f) Fasten dial ring to door using screws and tighten tube nut (if
present on lock) and align with hole through door).
Insert dial into dial ring and hold snug.
h) Carefully thread the dial spindle onto the drive cam until snug.
Do not force dial.
i) Measure the excess spindle length, unscrew, remove, and
carefully cut off excess, leaving 1/16 inch (2 mm) above drive cam. Remove
j) Rethread the dial spindle onto the drive cam until snug and back
off until the keyways in the spindle and drive cam line up.
k) Insert the spline key. Drive the spline key in carefully. If
the spline key becomes loose, the lock will not function properly. Make
certain that the spline key is tight.
1) Attach the back cover using the cover mounting screws.
is now ready to have the new combination set.
Maintenance Recommendations. Periodic servicing will extend the
life of the lock and is essential for maintaining proper security. Each time
the combination is changed, inspect the lock for wear, metal filings, drilled
holes, cracks, or any other visual signs of attempts to defeat the lock by
forced entry techniques. The inspection process should include removal of the
back cover of the lock, and visual examination of each wheel part as well as
the cam and lever assembly to make sure nothing is worn or damaged. If
lubrication is required, use molybdenum-disulfide (powder). NEVER use oil- or
petroleum-based lubricants on combination locks.
Each time the back cover is removed, the combination should be
reset. Remember to check the combination at least three times before locking
Any other maintenance other than changing the combination and
inspecting the lock should be referred to a qualified locksmith.