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35 Cards in this Set
- Front
- Back
What is the rated capacity of the EHPS? |
32 GPM at 3000 PSI and 22GPM at 5000 PSI |
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What is the input power of the EHPS? |
440-460 VAC, 3 phase 60 Hz |
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What type of motor is used on the EHPS? |
75 horse power, 440/460 VAC, 3 phase, 60 Hz induction type electric motor. |
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What drive the main hydraulic pump? |
The electric motor |
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What are the two ways to sample fluid on the EHPS? |
The manual sampling port and shutoff valve located on the left side of the unit and by using the supply and return quick disconnects on the control panel using the PODS hookup. |
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What is the hydraulic fluid temp warning? |
165 +/- 7 Fahrenheit |
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How many microns is the high pressure filter rated at? |
3 microns absolute |
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What is the range of the high system pressure gauge? |
0-6000 PSI |
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What is the range of the low pressure compound gauge? |
30 in mercury Hg, and 0-300 PSI |
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What is the range of the flow meter? |
.50 to 70 GPM |
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At what temperature does the hydraulic oil pressure shutdown at? |
185 Fahrenheit |
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At what temperature does the thermal relief valve come on? |
180 plus or minus 10 PSI |
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When does the boost pressure switch close? |
When pressure drops below 10 plus or minus 2 PSI |
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When does high pressure switch close? |
When pressure drops below 1000 +/- 50 PSI |
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What type of fluid heat exchanger is used on the EHPS? |
Oil to air type, fan cooled |
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What type of supply port is used on the EHPS? |
12 pin quick disconnect |
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What type of return port is used on the EHPS? |
20 pin quick disconnect |
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Why is the electric system reduced to 24 VDC? |
For instrumentation and controls |
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What is the rated capacity of the high pressure relief valve? |
5500 +/- 50 PSI |
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What is the rated capacity the system pressure relief valve? |
3400 +/- 50 PSI |
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What is the rated pressure of the boost relief valve? |
150 +/- 10 PSI |
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What is the rated capacity of the flushing manifold relief valve? |
1000 +/- 100 PSI |
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What are the two basic modes of operation on the EHPS? |
Open loop and closed loop. |
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Which mode of operation would you set the reservoir valve to test stand position? |
Open loop |
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Which mode of operation would you set the reservoir valve to aircraft position? |
Closed loop |
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What is the capacity of the hydraulic reservoir? |
25 to 28 gallons |
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What component maintains the normal operating temperature range of the EHPS? |
Heat exchangers |
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What components protects the EHPS from excessive pressure buildup due to thermal expansion of the fluid? |
Thermal relief valve |
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What component will shutdown the whole entire unit if excessive temperature is reached? |
The max temp switch |
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What type of temperature gauge is used on the EHPS? |
Dial indicating |
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Fault condition that require attention but are not critical to continued operation are identified by what color light? |
Amber |
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Fault conditions that are critical in nature are identified by what color light? |
Red |
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What is the relief valve setting of the boost pump? |
140 PSI |
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What is the high temperature shutdown? |
185 +/- 7 Fahrenheit |
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How many microns is the boost system filter rated at? |
10 microns nominal |