Aosom A91-169, Assembly & Instruction Manual, Page: 11 / 31

A s s e m b l y S t e p 6
A). With the help of an assistant, insert the two pegs on the sides of the Backrest Cushion Post (#18) into the two
side holes located on the inside of both Backrest Supporting Tubes (#10). While simultaneously holding these three
pieces together, align and slide the two holes on the bottom of the Backrest Supporting Tubes (#10) onto each side
of the “welded rod” on Main Frame (#04). Secure by inserting one Hex Bolt (#45) through one Washer (#55)
followed by one additional Washer (#55) and one Nylon Nut (#53). Please DO NOT OVER-TIGHTEN.
B). Insert the Arm Curl Frame (#14) into the Front Upright (#05) and secure it in place with one Knob Bolt (#38) as
illustrated below.
C). Insert the Pop-Pin (#43) into the hole on back of Main Frame (#04) for now. This Pop-Pin (#43) will allow you to
adjust seating positions for versatile workouts.
Assembly Instructions
Hardware Required
WASHER
#55. Washer (M10) [2 Pieces]
#45. Hex Bolt (M10x140 mm)
[1 Piece]
NUT
#53. Nylon Nut (M10) [1 Pieces]
OTHERS
#38. Knob Bolt
(M10x60 mm) [1 Piece]
#43. Pop-Pin (10x105 mm)
[1 Piece]
BOLT
LOCK PIN
The
is used to place the
backrest into the
position quickly.
Pop-pin (#43)
Remove the
Pop-pin
(#43) for all other
positions and insert it
into the hole on the
Main Frame (#04)
when it is not in use.
C
KNOB BOLT
The
Knob Bolt (#38)
is used to adjust the height
of the Arm curl pad post. Simply unscrew the
Knob bolt (#38) , reposition the height of the
Arm Curl Frame (#14)
and then tighten the
Knob
Bolt (#38).
A
B
“Welded Rod”
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