LifeSpan SM-420 User Manual page 11

STEP 5
1. Loosen the guide wire and use the guide wire to pass the wiring head through the armrest
adjustment assembly (10), as shown in Figure A.
2. Loosen the L-shaped adjustable handle at the front by turning anti-clockwise and pulling up handle
as shown on image. Then install the armrest adjusting assembly (10) onto the main frame (5) of the
machine. Lock the L-shaped adjustable handle after adjusting to the desired height.
3. Loosen the L-shaped adjustable handle then install the seat cushion adjusting pipe assembly (4) on
the main frame (5) of the machine according to the direction shown in the figure. Lock the L-shaped
adjustable handle after adjusting to the desired height.
4. Install the seat cushion front and rear adjustment support group (2) to the seat cushion adjustment
pipe assembly (4) and lock it with the seat cushion adjustment knob.
5. Install the seat cushion (1) on the front and back adjustment support group (2) of the seat cushion.
After adjusting the seat angle, secure it by tightening the nut on both sides at the same time (left nut
anti-clockwise, right nut clockwise).
TOOLS
A
10
B
1
2
3
4
5
ASSEMBLY INSTRUCTIONS | 11