Lathem LX100 - Manual (Page 21)

LX100 User’s Guide
Page 21
3. Insert axle (short axle for thinner doors, longer axle for
thicker doors included) into center turning hub. Make sure
the “dot” is up on the turning hub and holes are vertical
on axle.
4. Insert securing pin downward thru top of turning hole, thru
axle until pin is completely thru.
5. Bend “legs” of pin outward around turning hole to secure.
You may require pliers to do this.