User's Manual
231   
Grip the handle, and pull it outward (further to the right), while maintaining a firm grip on it. This will unlock 
the accessory housing mechanism, by creating a space in the slot at the end of the Multiplanar Accessory 
Housing Joint. While holding the handle in this position, gently twist it in any direction. This will keep the 
handle in an unlocked position while you insert an accessory. 
Select the accessory to be attached. On the end of the accessory there is a flattened side and a slightly 
rounded side. 
Insert the accessory into the opening at the top of the Multiplanar Accessory Housing Joint, with the flat 
side of the accessory facing to the right (the side with the handle). 
Grip the handle on the right-hand side of the Multiplanar Accessory Housing Joint and turn until a clicking 
sound is heard. This indicates that the handle has locked into the accessory. Now turn the handle in a 
clockwise direction, until it firmly secures the accessory into the Multiplanar Accessory Housing Joint 
mechanism. 
Grip the accessory and shake it back and forth. The accessory should be firmly inserted, and not be 
loose in any way.
Removing an accessory from the Multiplanar Accessory Housing Joint 
Locate the top handle on the right side of the Multiplanar Accessory Housing Joint. 
Give the handle an approximately ΒΌ turn in a counterclockwise direction. 
Grip the handle, and pull it outward (further to the right), while maintaining a firm grip on it, then turn it 
gently in any direction. This will unlock the accessory from the housing mechanism as well as maintain 
the space in the slot at the end of the Multiplanar Accessory Housing Joint. 
Grip and pull the accessory until it separates from the Multiplanar Accessory Housing Joint mechanism. 
ER Shelves 
The ER system comes with two shelves to be used during a variety of functional tests. Each of the two 
shelves has a different attachment mechanism. 
One of the shelves has an end that is similar to the end of all other accessories. It is therefore referred to 
as the Accessory Shelf. This shelf is used as an accessory during functional tests and attaches directly 
Prior to performing any testing on clients, ensure that the Multiplanar Accessory Housing Joint 
is securely attached to the upper or lower accessory arm, and that any attachment used is 
firml
y
 secured to the accessor
y
 housin
g
 mechanism.










