Sunrise Medical S-646 E t u p , a d j u s t m e n t & U s e, ANTI-TIP Caster LOCK-OUT

10 V . S e t - u p , A d j u s t m e n t & U s e

V . S e t - u p , A d j u s t m e n t & U s e 11

F. ANTI-TIP CASTER LOCK-OUT	D
1. The rear anti-tip casters incorporate a lock-out
	B
mechanism to prevent the chair from sagging
rearward when tilting. To adjust the tilt angle
at which they lock-out follow the instructions
below:
a) Adjust the height of the anti-tip lock-out
actuator levers (A).
b) Adjust the cable position (B) at the anti-tip	A
mount and the anti-tip lock-out actuator
	C
lever mount brackets (C).
2. Proper adjustment of the anti-tip lock-out
levers can be verified when three conditions
exist:
a) The anti-tip lock-out levers under the anti-tip
lower links are retracted when the seat frame
is on the forward stops.
b) The anti-tip lock-out levers (A) located at
the front stop pins (D) do not rotate to the
point that they can not be engaged by the
seat frame forward cross tube when the seat
frame is lowered toward the forward stop
pins.
c) When the seat frame is elevated off the anti-
tip lock-out actuator levers (A), the anti-tip
lock-out levers are free to engage the anti-
tip lower links.

e)Fasten the split clamps (F) such that the clamps capture both the towel bar (C) and the swing-arm cross member.

f)Rotate the position of the swing-arm cross member underneath the towel bar and as close to the seat back as possible.

g)Tighten the split clamps (F). Do not fully tighten. Clamps should be tight so that the clamp does not rotate, except with sufficient hand force.

h)Ensure that the lower four links (G) are posi- tioned such that the upper portion of the links are slanted rearward beyond the vertical, as shown in the accompanying figure.

i)Begin tilting the system. If the vent tray binds, or interferes with the battery box, return the tilt to an upright position and rotate the clamps around. Tilt the system once again and observe what happens. You may need to go through sev- eral iterations of clamp position before finding the most appropriate clamp location. You will know when you have achieved the appropriate position when the vent tray articulates just past the vent battery box when tilting and tucks up close to the back rest when fully upright.

NOTE– It is important to keep the angle between the swing-arm (E) and the vent tray platform (D) as small as possible. This will prevent the system from inadvertently binding due to vibration or

Angle should be as small as

possible

Links should be slanted rearward

G. ARTICULATING VENTILATOR TRAY

1.Attach the Vent Tray to the S-646 Frame

a)Slip the vent tray battery cage (A) over the rear frame tube of the S-646 (B).

b)Fasten the battery cage to the frame using the two bolts provided.

2.Attach Vent Tray Swing-Arm to the Towel Bar.

a)Position the Power C.G. Tilt system in the fully upright position.

b)Adjust the towel bar (C) to the desired height.

c)Position the vent tray platform (D) such that it is level with the floor and within 1.5" of the seat back.

d)Adjust the length of the vent tray swing-arm

(E) such that the swing-arm cross member is virtually at the same position as the towel bar.

C

F

A

E

D

BG

impact.

930576 Rev. A 930576 Rev. A