RFI.docx

Q&A Q1. Is there an explosion proof requirement for the entire cart or just the power connection plug?

A1 Yes, we required the explosion proof plug for safety and OSHA standards 3-wire, 4-pole .875 - 1.375 BHP6485D.

Q2. If so, what is the Class and Division of explosion proof requirement?

A2. Plug must cover Cl. I, Div. 1 and 2, Groups B, C, DCl. II, Div. 1 and 2, Groups F, G Cl. III.

Q3. Is there a system schematic showing the connection interface from the pump to the connection points?

A3. Yes, a schematic is required for maintenance.

Q4. Is the KHC-1004 the only connection interface required for connection to Army aircraft?

A4. No, but it needs to the right connection to hook up to army aircraft.

Q5. Is there a duty cycle requirement for this system? (we are assuming that there is no fluid cooling required but want to make sure) A5. There is no requirement for fluid cooling, but cart must be equipped with a device to prevent overheating.

Q6. Is there a filtration or fluid cleanliness level requirement for the hydraulic oil?

A6. Yes, monthly samples are completed and sent to a lab. This requires the hydraulic fluid to be free of debris and water. This is why each unit should have a filter for output hoses and a dessicant filter to keep the moisture out of the holding tank.

Q7. Are there any corrosion resistance requirements? (ie: stainless steel construction, epoxy paint, etc.)

A7. Yes, tank must be made of stainless or some kind of material that can’t be broken down by milspec 5606 or 83282 fluid.

Q8. Are there any specific military specifications that apply to the contract?

A8. Unit must meet all requirements to supply hydraulic power to all helicopters in Army aviation