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11. MAINTENANCE & SERVICING
11.4 BATTERY REPLACEMENT
CAUTION: The battery is of sealed lead-acid type and should be disposed of safely to prevent environmental
damage.
The life of the battery will depend on the use that it has had. As a guide, it should be replaced every four years.
11.5 M9 TRANSFER USER MAINTENANCE CHECKLIST
WARNING: To protect yourself when inspecting or servicing keep body and limbs well clear of any moving
mechanical componentry. Never place your body and limbs beneath any type of bed, stretcher or
shower trolley deck when operating any of the functions.
WARNING: Unplug the stretcher from mains supply before inspecting the power supply cord and other cables.
Carry out the following maintenance checks annually:
a) Visual check
Visually inspect all components for mechanical damage including:
•
Deformed or cracked components.
•
Deformed or cracked welded connections.
•
Deformed, cracked or loose bolted connections.
•
Pivoting connections with loose fasteners that should be tight.
•
Bent, cracked or damaged actuators (including body clevis, piston clevis, piston, piston sleeve and plastic
housing).
b) Electric controls
•
Check that all of the buttons on the handset work correctly.
•
Check that the lock out feature is functional on all handset button functions.
c) Electrical system
•
Unplug the stretcher from the mains supply. Check all electric cables for cracks, cuts or damage from
crushing.
•
Unplug the stretcher from the mains supply. Check that the potential equalisation terminal (POAG terminal)
is functional by measuring the resistance between the earth pin on the 3 pin plug and the potential
equalisation terminal. Check the resistance between the earth pin on the 3 pin plug and any other earth
cable on the stretcher (green and yellow cable). Check that the backrest and legraise earth cables lead to a 3
pin plug earth. The resistance in all instances must be less than 0.20Ω.
•
Unplug the stretcher from the mains supply. Press any control button to check that the battery will power the
stretcher adjustments. It may be necessary to plug the power cord into the mains supply for up to one hour
prior to this test to ensure the battery is charged.
•
Adjust the backrest, legraise, deck height and deck tilt. Check that there are no abnormal noises during each
functions full range of movement.
d) Backrest quick-release mechanism
•
Adjust the backrest fully up. Move the CPR lever to the emergency position. Check that the backrest lowers
when force is applied to it. Check that the CPR lever automatically returns to the normal position when it is
released.
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M9 Transfer Instructions For Use (M999-190, Version 1, 2022-04)
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