Step 1: Locate u shape tube (part A) and
put it on floor.
Step 2: Locate one side frame (part B),
then connect it on u shape tube (part A)
with bolt (part C), washer (part E) and
lock nut (part D). Don’t tighten the
bolts.
Step 2.1: When assembling, don’t forget
the washer (part E).
Step 3: Locate another side frame (part
B)and assemble on another side of u
shape tube (part A) with bolt (part C),
washer (part E) and lock nut (part D),
then tighten all bolts.