HYDRAULIC OIL RESERVOIR REPAIR (Sheet 5 of 6)
Using plugs from radiator repair tool kit, seal all remaining reservoir openings except one.
Install pressurizing fitting from radiator repair tool kit into final opening.
Install hose from low-pressure compressed air facility to pressurizing fitting in reservoir.
Using compressed air, slowly pressurize reservoir to a pressure of 3 psig.
There shall be no air leakage permissible from the pressurized reservoir. Any leakage will be
detected by escaping air causing bubbles to form in a soapy solution applied to each weld and
joint, and by loss of air pressure as indicated by the low-pressure compressed air facility pressure
gage. If leakage occurs at filler cover, use a piece of 2 or 3 mil polyethylene sheet between cover
Check all welds and joints for air leaks by applying solution of detergent (Item 11, Appendix B) and water on each
weld and joint.
Check low-pressure compressed air facility pressure gage for any loss in pressure.
Relieve pressure in reservoir and disconnect air hose from pressurizing fitting.
Using hot water, thoroughly rinse outside of reservoir. Allow to dry.
Go on to Sheet 6