Bumper Wheels On Emma Bed Ends; Accumulator Backup - Invacare SB 755 Service Manual

Invacare® SB® 755
1. Dismount the side rail(s) and lifting pole (bed head
end).
2. Extend the bed in the foot end
a. Loosen the screws A on the bed end attachments.
b. Pull out the bed end attachments B 5 or 10 cm,
and re-tighten both screws A.
c. Loosen the screws C on the mattress bow D and
pull it out to match the extension. Make sure there
is at least 2,5 cm between the mattress bow and
the bed end.
3. Extend the bed in the head end
a. Loosen the screws A on the side tube of the
mattress support frame.
b. Pull out the cross tube B 5 or 10 cm, and re-tighten
both screws A.
4. Replace the mattress or put in a fitting mattress piece.
5. Mount the side rail(s) and lifting pole (bed head end).
Loose mattress pieces should always be fitted in
the foot end of the bed.
3.12 Bumper wheels on Emma bed
ends
Bumper wheels can not be mounted onto other
bed ends.
The bumper wheels can be mounted in two different ways.
See illustrations.
1. Mount the bushing in the bumper wheel
2. Fasten the bumper wheel with a screw into the bed
end.
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3.13 Accumulator backup

(only for non-washable version of the bed)
Beds equipped with a accumulator has an additional box
A next to the control unit B. The backup ensures that the
bed can be adjusted during a power failure or transport.
A
IMPORTANT!
Low accumulator capacity
– When the accumulator only has capacity left
for one more lifting cycle, the control box
will make an audible sound, when using the
hand control.
Mounting the backup battery
1. Install the box, on the bed´s base frame, next to the
control unit B.
2. Connect the cable to the control unit.
Charging the batteries
WARNING!
Risk of explosion
Old or faulty accumulators may generate an
explosive gas mixture during charging.
– The accumulator box is provided with vents
to ensure adequate ventilation of the box.
Do not block or cover the vents, as this may
result in pressure built-up and the risk of
explosion.
1. Connect the control unit to the mains.
• The control unit must be connected to the
mains for 24 hours prior to first use.
• Accumulators must be charged, at least, every
6 months for maintenance purposes.
Preventive maintenance
Frequent, sudden discharges reduce the backup's
life.
We recommend the accumulator be tested at least once
a year.
Accumulators are not damaged by continuous connection
to the mains.
Exchanging the accumulators
IMPORTANT!
Accumulator back-up
– Old accumulators must be returned to
Invacare or recycled as car batteries
• Accumulators have to be exchanged after 4 years.
Depending on how the back up is used the exchange
may have to take place earlier.
B
1577126-H