Sunrise Medical Series 550 - Manual (Page 14)

OPERATION
VOYAGER 420 - 550 – 800 (rev 3) 14
To lower the patient more quickly, use a
power drill with a 4mm Allen key bit.
5. Once the patient is lowered safely into a
chair or bed, call a certified technician to
have lift serviced.
6.5 Emergency Brake
•
The emergency brake is
made of a metal bar
fixed to the drum.
•
In case of a chain, gear or motor breakage,
the centrifugal force created would block the
bar against the frame.
6.6 Frame with mechanical
clips
•
Supporting structure is
welded and reinforced with
metal clips.
6.7 Battery Information
DO NOT DROP THE LIFT. A
DROPPED LIFT MAY HAVE
INTERNAL DAMAGE THAT IS NOT
VISIBLE. IT MAY LOSE ITS
ABILITY TO RECHARGE.
Due to internal damage caused when the
battery is dropped, the battery may indicate
that it is fully charged, when in fact it
cannot hold a full charge. A green light
indicated on the lift may not accurately
reflect a full charge on a damaged battery.
NEVER attempt to use a battery that
appears to be damaged or dented.
DO NOT store the battery near a heat
source. Heat will damage it.
• 24 Vdc, 7 Ah rechargeable battery.
• Provides up to 150 transfers with load of 75
kg (165 pounds).
Life cycle (number of charging cycles) of the
battery is largely dependent on the depth of
discharge in each cycle. The more the battery is
drained, the shorter its life span. The life of the
battery is also related to such factors as varying
temperatures and rest periods between charge
and discharge.
Graph 1: Number of recharges vs. Depth of
discharge
Graph 1 illustrates the relationship between
discharging depth and expected battery life.
If you drain the battery until it beeps every time,
you can expect the battery to fully charge only
600 times.
To prolong battery life, return the
lift to the charger WHENEVER
THE LIFT IS NOT IN USE.
The battery will not overcharge.
BHM uses sealed lead-acid batteries.
Contrary to nickel-cadmium, BHM batteries
do not have any memory effect. Therefore,
batteries should not be completely drained
before recharge.
Graph 2: Number of lifts vs. Lift load
The graph above (Graph 2) illustrates the
relationship between the load lifted and the
number of lifts that can be done with one
recharged battery.
Do not drain the battery
excessively. This will dramatically
reduce the battery life span.
If the low battery buzzer sounds and red
light flashes, be sure to recharge the
battery as soon as possible.
6.8 Charging the battery
DO NOT operate the charger unit
with a damaged cord or if the unit
has been dropped or damaged.
DO NOT forcibly bend the power cord or
place a heavy object on it. This will
damage the cord and may cause fire or
electrical shock.
DO NOT pour liquid on or near the charger.