1
Assembly of the base tube and main frame
1. Attach the Upper Support Frame (2) to the Base Tube (1), secured with bolt (23- 2pcs), washer (28-
2pcs) and nylon nut (30-2pcs).
2. Insert the Upper Support Frame (2) into the Adjustable Bottom Frame(3), Locked with Adjustment
Foam Tube(6) and Knob(19).
3. Insert the Foam Tube(7) into the hole of Adjustable Bottom Frame(3),then put the Foam (14-4pcs)
onto the both side of Foam Tube (7) and Adjustment Foam Tube (6).
4.
(28-2pcs) ,nylon nut (31-1pc) and Short Pin(21-1pc).
5. Attach the Back Support Frame (5) to the Base Tube (1), secured with bolt (23- 2pcs), washer (28-
2pcs) and nylon nut (30-2pcs).
6.
(28-2pcs) ,nylon nut (31-1pc) and Short Pin(21-1pc).
EN
EN
A
SSEMBLY
18