Step 2: Attach the backrest pan to the seat pan and the back-frame posts.
Seat pan to backrest pan: Use an attachment bracket , four M6 hex head cap screws 10-mm
long , and four M6 washers .
Backrest pan to back-frame posts: Use four M6 hex head cap screws 10-mm long and four M6 washers to
attach the “L” brackets to the backrest pan. Use two M6 hex head cap screws
10-mm long, two M6 washers,and two M6 nuts with ange to attach the “L”
brackets to the “U” brackets. Use two M6 hex head cap screws 35-mm long ,
two M8 washers , and two M6 nuts with ange to attach the “U” brackets to the
back-frame posts.
Step 3: Attach backrest cushion and the lateral sup-
ports (4) to the backrest pan. Use eight M6 Philips
head pan screws 10-mm long to attach the
pads to the lateral support attachments. Use eight
M6 hex head cap screws 10-mm long and
eight M6 washers to attach the lateral support
attachments to the backrest pan.
Step 5: Attach the chest harness to the backrest
pan. Use four M6 hex head cap screws 10-mm long,
eight M6 washers, and four M6 nylon lock nuts.
Step 6: Attach the pelvis strap to the seat pan. Use
two M6 hex head cap screws 10-mm long, four M6
washers, and two M6 nylon lock nuts. Attach the
seat cushion.
Step 4: Attach the headrest to the backrest pan.
Use three M6 hex head cap screws 30-mm long
and three M6 washers to attach the ball
mounting bracket to the ball mounting tube. Use two
M6 hex head caps screws 10-mm long and
two M6 washers to attach the headrest attachment
mount to the backrest pan. Use two M6 knobs
to secure the horizontal and vertical headrest tubes.
Insert a square plastic cap into the squared end
of the ball mounting tube.
