Arjo Opera Operating And Product Care Instructions page 11

Product Description/Function
System Failure Lower Override (see Fig. 5): This
can be used in the event of main control failure. If
the control handset or dual switch panel fail to
operate the lift, with a patient still supported by the
sling or stretcher, a provision for lowering has been
made using the "System Failure Lower Override
switch" located to the right of the controls console.
A green and white identification label is positioned
near the switch for quick and easy recognition. If
pressure is released from the switch during use,
lowering will stop.
Warning: The Lower Override switch
will only engage while the green reset
button is in. Only use this switch in an
emergency.
lowering.
System Failure Wind Down Facility (see Figs. 6
& 7): If the electrical power fails due to battery
power loss or another electrical malfunction, the jib
can be lowered. To do this, first remove the
battery pack. Then use a coin or screwdriver to
slacken and remove the screw that retains the mast
top cover. Slightly lift the rear side of the top cover
Screwdriver/Coin
A
Top
Cover
approximately 3/16 inch and slide the cover
forward. Then lift it off the mast. Identify and
remove the hexagonal wrench located inside the
mast. Use the wrench to slacken the shaft lockscrew
located at the top front of the mast (see Fig. 7c) and
turn it three full turns anti-clockwise. Identify the
hexagonal hole in the shaft center inside the mast
(see Fig. 7d) and use the wrench to turn the shaft
clockwise and lower the patient.
• Note: One full clockwise rotation of the
shaft lowers the mast jib by 3/8 inch.
Do not use it for normal
B
Wrench
Fig. 6
C
Shaft
lockscrew
Warning: If the mast is in a high position
and the wind-down facility has to be used,
always ensure that suitable and safe
measures are taken to gain access to the top
cover.
Hold the hexagonal wrench securely in the shaft.
Do not release hand contact with the wrench as this
could result in loss of control during the lowering
procedure.
Once the patient has been lowered and removed
from the lift, ensure that the components are re-
assembled by reversing the above procedure.
• Note: To enable the shaft lockscrew to be
tightened by three full turns, the shaft
may have to be rotated slightly to make
alignment possible. To achieve this,
identify the alignment mark on the top of
the shaft and then rotate the shaft until
the mark aligns with the axis of the
lockscrew.
If the system failure lower override switch or wind
down facility has to be operated, do not use the lift
and contact the ARJO Service Department.
System Cut-Out Switch (see Fig. 5): If the lift
functions fail to operate when the buttons on the
control handset or dual switch panel are pressed.
Check that the "green" reset button is pressed in
and that the battery pack is fully charged. If the lift
still fails to operate, check the system cut-out
switch, located to the right of the controls console
above the lower override switch. If the cut-out has
engaged, the switch will protrude from its mount.
Press the switch in to reset it.
11
D
Shaft
Fig. 7