P16/54 T-SM47j
4.0 SAFETY WARNINGS
4.1 ‘Service position’
When the four M10 screws (each side) that secure the
trunk sections to the pedestal are removed, to place the
table in the ‘Service position’ as detailed in section 1.9,
always take extreme care (and ensure table is switched
‘off’ before tilting top into or out off the ‘Service position’).
When the M10 screws are removed the table trunk sections
may tilt dramatically unless the sections are fully supported
during screw removal. Always lower the trunk sections into
(and out of) the ‘Service position’ slowly and always return
the table trunk sections to the ‘normal’ position (taking care
not to trap fingers) as soon as possible, replacing the eight
M10 screws securely. Also remove the following before
placing the table into the ‘Service position’:
Head section Leg section
Trunk mattress All accessories
When powering the table in the ‘Service position’ using
tool T2203 (to connect the table top connector blocks)
extreme care should be taken and powering the table in
this position should be limited to essential testing only. It is
preferable to return the table out of the ‘Service position’
before powering the table.
4.2 Lifting
During some of the procedures detailed in this manual it is
necessary to lift heavy assemblies. These are the long and
short trunk assembly, the wrapround assembly and the
telescopic assembly. These all require two people to lift
safely and any procedure that requires these to be removed
from the table should not be attempted if two people are
not available. Other components although not heavy
enough to require two people, should be handled using
the correct lifting techniques to minimise personnel injury.
It is advised that suitable protective footwear is worn when
handling heavy parts.
4.3 M10 trunk screw removal
When removing the four M10 (hexagonal head) screws
that secure the trunk sections to the column, always ensure
that precautions similar to those detailed in 4.1 above are
taken. Remove all accessories, sections and trunk mattress
and support the trunk sections during screw removal.
4.4 Trend and tilt actuator removal
When the Trend and /or tilt actuators are removed the trunk
sections will not be stable. Before removal follow similar
precautions to those detailed in section 4.1. Remove all
accessories, sections and trunk mattress and support the
trunk sections during actuator removal. Replace the
actuator as soon as possible.
4.5 Working with mains voltage
The only time that it may be required to work with mains
voltage applied to the table is whilst testing the battery
charger. During this procedure ensure that normal safe
working procedures are employed for an activity that entails
working with mains voltage, such as:
i Reduce the amount of live work to the minimum
possible.
ii Use common sense and stop working if
approached, distractions can kill.
iii Ensure the area is clear of all unnecessary
personnel or warn people in the area to stay
clear during live work. Also ensure that you are
not entirely alone and that someone could come
to your assistance if you should suffer an electric
shock.
iv Only use the correct equipment, probes and
cables for the work in hand.
v Mains power should be supplied via an RCD
(residual current device).
vi Turn off the mains power whenever possible to
reduce risks.
4.6 Gas springs
When removing or servicing the table head and leg sections
gas springs refer to the warning in section 6.5.1.2. They
do not require lubrication and do not attempt to open them.
Also note the disposal notes provided in 6.5.1.2 (vii).
4.7 Hot parts on PCAs
During service and when covers are removed note that
parts of the PCAs can become hot enough to cause burns.
Beware that touching these assemblies when hot could
result in unexpected body movements.
4.8 Biological contamination
During servicing of the table it is advised that protective
gloves should be warn to avoid biological contamination. It
is preferable that the table be cleaned and disinfected
before service.
4.9 Connection of leads
When connecting test leads to the table during service
ensure that these do not constitute a tripping hazard.
4.10 Leaking batteries
In the unlikely event of a battery leaking in the table base
avoid spreading the contamination (sulphuric acid) and:
i Wear suitable personnel protection (goggles, gloves
etc.) do not smoke and avoid sparks.
ii Use a bonding agent such as sand, or sodium
carbonate to absorb and neutralise the bulk of the
electrolyte. Wash (and rinse well) the contaminated
area with water, taking care not to splash electronics
or any other table base components.
iii Do not flush electrolyte into the sewer system but
dispose of the used bonding agent and all cleaning
materials in accordance with local waste regulations.
In the case of skin contact wash and rinse immediately
with water. If splashed into eyes rinse well with water and
seek medical advice. If acid mist is inhaled, inhale fresh
air and seek medical advice.
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