2.
Determine which patients need oxygen and ob-tain an oxygen hose and mask from the medical cabinet.

3.
Attach the patients oxygen hose to the patient and to the corresponding oxygen regulator on the side medical control panel.

4.
Select the desired oxygen rate on the regulator.

5.
Make sure unused oxygen regulators are turned to OFF.

4.12.14 Electrical Power. A frequency converter located over the left fuel cell and in the aft transition sec-tion provides 115 VAC 60 Hz power. Electrical outlets for 115 VAC are provided at the bottom of the medical door-post panels. A 28 VDC outlet is provided at the top of each doorpost panel.
4.12.15 Litter Lift System Operation.

To prevent injury to patient or damage to equipment, do not press the litter plat-form switches on the overhead control panel and the side control panel at the same time. This could cause sudden and unpredictable motion of the platform when releasing the switches on the over-head control panel.
The litter lift system is designed with limit switches that assist in preventing mechanical damage. The litter lift for the upper platform contains a limit switch that prevents the platform from going higher than the mechanical limits of the lift columns. This switch stops the plat-form about three inches from the fold down seats attached to the ceiling. This switch does not prevent the patient from being raised high enough to cause injury.
The litter lift for the upper platform has no limit switch to stop its downward mo-tion. The operator must release the con-trol switch to stop the platform before it comes in contact with the lower platform or the patient on that platform.
The litter lift for the lower platform con-tains a limit switch that prevents the plat-form from coming in contact with he .oor. This switch stops the platform about three inches from the .oor. This switch does not prevent the platform from going low enough to cause injury to the patient on the bottom of the litter platform. The litter lift for the lower platform has no limit switch to stop its upward motion. The operator must be release the control switch to stop the platform before it or the patient on that platform comes in con-tact with the upper platform.

Due to mechanical limits, the platform must not be tilted, from its horizontal po-sition, more that 17 degrees (seven inches difference between vertical position of the forward and aft litter lift pins).
When operating the litter lift system the LITTER LIFTS switches on the overhead control panel have prior-ity over the switches on the side control panel. The controls and functions are as follows:

250 150 100 50 0 350 LITERS B O S Q T Y O X Y F L O W 25 30 20 15 10 5 LPM BOS OBOGS PWR ON BIT FAULT AB0724 SA Figure 4-28. OBOGS Panel CONTROLS/  FUNCTION 
INDICATORS 
UPPER 
PLATFORM 
FWD  UP  Moves the forward end of the upper 
DOWN  litter platform up or down. 
AFT  UP  Moves the aft end of the upper 
DOWN  litter platform up or down. 
LOWER 
PLATFORM 
FWD  UP  Moves the forward end of the lower 
DOWN  litter platform up or down. Upper 
platform must be positioned to the 
.ight position prior to moving the 
lower  platform.  For  loading 
ambulatory  patients,  the  lower 
platform  must  be  in  the  .oor 
position before moving the upper 
litter platform. 
AFT  UP  Moves the  aft  end of the lower 
DOWN  litter platform up or down. Upper 
platform must be positioned to the 
.ight position prior to moving the 
　
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