Steelcase Criterion - Lower Cap Replacement

Page 5 of 6
939504754 Rev C
Lower Cap Replacement
1. Flip the chair to an upside down position.
2. While holding the arm firmly, use a #4 phillips
screwdriver or screw gun to remove the large
screw with black head. Repeat for other side.
When doing both sides, pay close attention to
which is the right and left side.
3. When screw is fully detached, remove arm
being careful to note order in which the washers
come off.
4. Remove assembly screws using a #25 torx
head screw bit with screw gun. Unsnap detents
of lower cap from mounting block.
5. Remove old lower cap.
6. Carefull take new lower cap and tilt slightly to
align tabs with small holes in trigger assembly
and gently push, snapping into place.
7. Carefully snapping detents of new lower cap
into mounting block, remount block with
assembly screws and torque to 80 - 100 inch lbs.
8a. For old style, reassemble arm cap to
mounting block. Torque screw to 100 - 120 inch
lbs.

8b. For new style, reassemble arm cap to
mounting block. Torque screw to 30 - 90 inch lbs.
2
6
4
HOLES
3