Appendix D: CONVERTING THE D-5 AND D-6 HYDRAULIC TEST STANDS FROM MIL-H-5606 TO MIL-H-83282 HYDRAULIC FLUID

TB 55-1500-334-25

APPENDIX D

CONVERTING THE D-5 AND D-6 HYDRAULIC TEST STANDS

FROM MIL-H-5606 TO MIL-H-83282 HYDRAULIC FLUID

D-1. Open main reservoir drain valve, and drain all

MIL-H-5606 hydraulic fluid. Close drain valve.

D-9. Start the test stand, and set the volume control for

five gallons per minute. Operate the test stand for ten

Fill reservoir with six gallons of MIL-H-83282 hydraulic

minutes. During this period, switch the flow control

fluid.

valve back and forth between the 1/2 inch and 3/4 inch

outlets at one minute intervals.

D-2. Open reservoir shut-off valve.

D-10. Open the bypass valve. Close the 1/2 inch and

3/4 inch flow control valves. Operate the stand for one

D-3. Open high pressure gage shut-off valve.

minute.

D-4. Close bypass valve.

D-11. Close the bypass valve for 10 seconds to force

oil past the relief valve. Re-open the bypass valve.

D-5. Remove quick disconnect fitting for one inch return

hose from stand, and allow all fluid in the line to drain.

D-12. Shut down the stand.

Install the quick disconnect fitting.

D-13. Drain the reservoir and refill with six gallons of

D-6. Open the 1/2 inch and 3/4 inch flow control valves.

MIL-H-83282.

D-7. Connect the 1/2 inch and 3/4 inch hoses to their

D-14. Repeat steps D-2 thru D-12.

respective quick disconnect fittings on the test stand.

Remove the quick disconnect fittings from the free end

of the hose assemblies and insert the free ends into the

D-15. Drain reservoir and refill with MIL-H83282.

fill neck of the reservoir.

D-8. Drain all fluid from the low and high pressure

filters.

D-1/(D-2 blank)