TM 55-4920-394-13&P
f.
Install new filter elements in reverse order of removal.
g.
Bleed test stand system as described in Chapter 3, Section IV before operating high pressure
pump.
3-26. Removal And Installation Of High Pressure Filter Elements. (Refer to Fig. 3-7). Remove and install
high pressure filter elements in accordance with the following instructions:
a.
Exhaust all test stand system pressure.
b.
Remove bleeder plug (1), crack drain plug (1) and allow filter to drain.
c.
Unscrew filter bowl (3).
d.
Remove filter element (4) and replace with a new element.
NOTE
This element is a throwaway type. No attempt should be made to clean it.
e.
Reinstall filter bowl, tighten drain plug and bleeder plug. Reset differential switch (10) by pressing
reset button with a blunt instrument punch or pencil and proceed with normal operation of test
stand.
3-27. Removal And Installation Of Structural Housing .
(Refer to
fig. 1-1). Remove and install housing as
follows:
a.
Attach suitable lifting device to four lifting eyes on top of housing.
b.
Release latches securing housing to structure.
c.
Lift housing while carefully guiding to prevent it from damaging functional components during
removal.
d.
Install housing in the reverse order of removal.
3-28. Hydraulic Reservoir Inspection Required Every 60 Days. Do not operate test stand for one hour or
more prior to inspection of the hydraulic reservoir.
a.
Remove the reservoir drain cap and drain out approximately one gallon fluid. This will remove
water and or other contaminates collected in the reservoir sump. If the fluid still shows visible
evidence of contamination after draining a minimum of one gallon of fluid, flush the system, dran
i
and clean the reservoir.
b.
Refill with hydraulic oil conforming to Military Specification MIL-H-5606 or MIL-H-82382.
3-12