Disassembly Of Mattress Support - Invacare SB 755 Service Manual

Invacare® SB® 755
6.
a. Take the hand control.
b. From the upright position (resting on the bed end
attachments); tip the section in over the control box.
c. Use the hand control to raise the bed until the square
plastic guides on the shear arms connect with the
guideways on the mattress support frame.
Bed width 85, 90
and 105 cm:
the arrow B on the base
frame, and the welding
point A on shear arms
crossbar, must be in line.
7.
a. Lift up the lower section of the mattress support up
to a horizontal position and hold it there.
b. Lift the upper part of the mattress support slightly
and fit the inserts in the openings of the side tubes.
c. Let the inserts rest in the openings.
8. Move over to the bed head end.
9.
Lift the upper half of the mattress support and push it
completely in over the inserts.
8
Bed width 120 cm:
the welding point
on the base frame D, and
the welding point C on the
shear arms crossbar,
must be in line.
10. Lock the mattress support in the middle:
Bed width 85 and 90:
Push down the seat
section.
11. Connect all plugs from the section motors in the
control box.
12. Attach the locking cam over the plugs.
NOTICE!
After assembly of the mattress support, check that:
— All plugs (motors and hand controls) a re
correctly connected to the control box
according to the printed symbols.
— Both sections of the mattress support a re
completely pushed together and the seat
section completely down (locked).
— Bed ends are correctly attached and that t he
mattress support is attached to the shear a rms
(snap lock engaged).
3.5.3 Disassembly of mattress support
Before disassembly of the bed:
Ensure that the castors in the head end of the bed
l
are pointing towards the center of the bed.
Use the hand control to adjust it to the correct
l
ergonomic height:
Bed width 85, 9 0
and 10 cm:
t he arrow B on the base
frame and the welding
point A on the shear arms
crossbar, must be in line.
1. Lock the brakes.
2. Dismount the accessories (bed ends, side rails, lifting p ole
etc.). Leave the bed end attachments in place.
Bed width 105 and 120:
Tighten the finger-screws,
under the side tubes on
each side of the mattress
support.
Bed width 120 c m:
the welding point
o n the base frame D and
the welding point C on t he
shear arms crossbar,
m ust be in line.
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