AdvenChair Field Guide
Page 2
There are three types of adjustable connectors used in the AdvenChair (Figure 2):
1.
Detent Pins
: Detent pins go through holes to pin parts in place at the desired position.
Press the button on top to release the pin so it can be inserted or removed.
2.
Ratchet Handles
: Ratchet handles are used to tighten bolts which hold parts in the desired
position. Pulling the ratchet handle straight out releases the ratchet so the handle can be
turned without tightening or loosening the bolt. When the ratchet handle is released, the
bolt is engaged and turning the ratchet handle will tighten or loosen the bolt. The ratchet
handles should be hand tight. Never loosen the ratchet handle more than one full turn.
NOTE: Do not loosen the ratchet handle more than one full turn. If loosened too far, the
handle will come off and the internal spring and bolt will come out.
3.
Spring Plungers
: Spring plungers lock two pieces of sheet metal in position by holding a pin
that goes through a hole in both pieces of sheet metal. To retract the pin, pull the spring
plunger straight out and turn it 90 degrees. To insert the pin, turn the spring plunger back
90 degrees and release it. The pieces may then need to be adjusted so the two holes line
up and the pin can go through both of them.
Figure 2. Detent pin, ratchet handle, and spring plunger.
