Microsoft Word - Troubleshooting Flowchart Handbook v6.docx

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OR*LIGHT*


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Description*


#* Text*box* Explanation*or*Comment*


1! Begin:!Troubleshoot!OR!Light! Start!the!diagnostic!process!for!a!work!order!on!an!OR!Light.!


2! Do!all!bulbs!illuminate?!
Provide!the!light!with!power!and!observe!whether!or!not!all!of!the!
bulbs!produce!light.!


3!
Is!voltage!delivered!to!nond
functional!bulbs?!


If!some!of!the!bulbs!do!not!illuminate,!it!could!be!due!to!issues!with!the!
bulb!or!the!power!supply.!Use!a!multimeter!to!check!that!appropriate!
voltage!is!being!delivered!to!the!bulb!housings.!!See!BTA!skills!on!
Electrical!Lighting/Indicators.!


4!
Troubleshoot!bulb!connections!


!


If!bulbs!do!not!illuminate!and!are!not!receiving!power,!then!there!may!
be!something!wrong!with!the!connections!from!the!bulb!housing!to!the!
bulb!itself.!Inspect!the!housing,!clean!any!residue!on!connections!and!
mend!poor!connections.!


5!
Check!continuity!of!power!supply!
wires!to!bulb!housings!


Ensure!that!the!bulb!housings!are!connected!to!the!power!supply.!Use!a!
multimeter!to!check!the!continuity!of!the!wires!running!from!the!power!
supply!to!the!bulbs.!!


6! Troubleshoot!power!supply!
If!the!device!is!connected!to!power!but!does!not!turn!on,!there!is!a!
problem!with!the!power!supply.!This!could!be!a!problem!with!the!
wiring!or!connections!within!the!device.!See!BTA!skills!on!Power!Supply.!


7! Are!bulbs!incandescent?!
Incandescent!light!bulbs!use!a!tungsten!filament!encased!inside!a!glass!
housing.!


8! Are!bulbs!halogen?!
Halogen!bulbs!have!a!tungsten!filament!encased!inside!a!quartz!
housing.!The!housing!is!much!closer!to!the!filament!than!in!
incandescent!light!bulbs.!


9! Are!bulbs!fluorescent?!
Fluorescent!bulbs!have!a!sealed!glass!tube!filled!with!mercury!and!an!
inert!gas.!!


10!
If!bulb!type!is!unknown,!use!only!
the!voltage!capacity!to!determine!
the!replacement!


Reference!BTA!skills:!Unit:!Lighting/Indicators,!Skill:!Fixtures.!


11!
Use!replacement!bulb!from!
manufacturer!if!available!


Acquire!the!bulb!designed!for!the!OR!lamp!unit!by!the!same!
manufacturer!as!the!unit.!Use!this!replacement!bulb!to!replace!any!




114!


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broken!bulbs!in!the!lamp.!


12!
Find!incandescent!bulb!
replacement!


Match!the!voltage!capacity!and!wattage!of!replacement!bulb!to!
original.!


13!
Use!CFL,!LED,!or!halogen!
replacement!bulb!


If!a!CFL!or!LED!bulb!can!be!found!that!matches!the!voltage!of!the!
original!incandescent!bulb,!then!it!may!be!used!to!replace!the!original!
bulb.!


14!
If!using!CFL!or!LED,!match!lumens!
of!replacement!to!original!bulb!


If!using!a!CFL!or!LED!as!a!replacement,!ensure!that!the!lumens!value!of!
the!replacement!bulb!matches!that!of!the!original.!


15! Find!halogen!bulb!replacement!
Match!the!voltage!capacity!and!wattage!of!replacement!bulb!to!
original.!


16! Use!CFL!or!LED!replacement!bulb!
If!a!CFL!or!LED!bulb!can!be!found!that!matches!the!voltage!of!the!
original!incandescent!bulb,!then!it!may!be!used!to!replace!the!original!
bulb.!


17!
Check!ballasts!and!replace!if!
necessary!


Reference!instruction!document.!


18!
Find!fluorescent!bulb!
replacement!


Match!the!voltage!capacity!and!wattage!of!replacement!bulb!to!
original.!


19!
Check!ballasts!and!replace!if!
necessary!


Reference!instruction!document.!


20!
Use!incandescent!bulb!
replacement!


If!an!incandescent!bulb!can!be!found!that!matches!the!voltage!of!the!
original!incandescent!bulb,!then!it!may!be!used!to!replace!the!original!
bulb.!


21!
Match!voltage!capacity!of!
replacement!bulb!to!original!


If!the!bulb!type!of!the!original!is!unknown,!then!the!voltage!capacity!
alone!may!be!used!to!find!a!replacement.!Match!this!value!of!the!
replacement!bulb!to!that!of!the!original.!


22!
If!necessary!retrofit!light!socket!
to!fit!replacement!bulb!


Reference!BTA!skills:!Unit:!Lighting/Indicators,!Skill:!Fixtures.!


23! Go!to:!Begin! Go!back!to!step!1!to!restart!the!troubleshooting!process.!


24!
Do!all!bulb!have!an!IR!filter!in!
front!of!them?!


Check!that!all!of!the!functional!bulbs!have!infrared!filters!between!the!
bulb!and!the!operating!field.!This!filter!usually!looks!like!a!plastic!sheet!




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sitting!in!front!of!the!bulb!in!its!housing.!


25! Do!not!use!bulbs!without!filter!
DO!NOT!use!the!lamp!if!any!illuminating!bulbs!do!not!have!a!filter.!This!
filter!is!necessary!to!ensure!the!safety!of!patients.!


26! Replace!missing!filters!


Insert!infrared!filters!wherever!missing.!These!filters!can!be!taken!from!
bulb!housings!containing!nondfunctional!bulbs!or!from!other!OR!lamp!
units.!!


DO!NOT!handle!filters!with!bare!hands.!


27! Go!to:!
!


28!
Do!all!parts!of!light!and!support!
move!freely?!


Manipulate!the!lamp!to!ensure!that!all!moving!parts!can!be!easily!
adjusted.!


29! Add!grease!to!resistive!parts!
If!any!moving!parts!of!the!lamp!resist!adjustment,!lubricate!these!parts!
using!grease!or!oil.!


30! Loosen!braking!screws!
Locate!the!braking!screws!on!the!lamp!unit.!Loosen!these!screws!to!
allow!for!more!fluid!movement.!


31! Adjust!spring!force!screws!
Locate!and!adjust!the!tightness!of!spring!force!screws!on!the!lamp!unit!
to!change!the!amount!of!tension!in!the!lamp!supports.!


32! Go!to:! !


33!
Does!light!stay!in!place!after!
adjustment?!


Ensure!that!the!lamp!stays!in!place!after!it!has!been!adjusted.!Try!
several!manipulations!of!the!lamp!and!let!lamp!stand!in!each!for!a!few!
minutes.!Observe!any!deviations!from!the!original!adjustment.!


34! Tighten!braking!screws!
If!lamp!moves!after!adjustment,!tighten!the!braking!screws!to!prevent!
this!movement.!


35! Go!to:! !


36! Light!is!functioning!properly! !


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Preventative*Maintenance:*


• Checking!mechanical!functionality!(grease,!tightening,!etc.),!!
o Check!supporting!framework!for!mobility!!
o If!framework!is!high!resistive!to!movement,!grease!resistive!parts!and/or!loosen!braking!screws!




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