TCH.1C-27J-2-29JG
2-19.1
) (Cont'd)
2.Loose nut (2) very slowly to prevent injuries to
personnel and wait for complete nitrogen discharge.
3.Cut the lock wire (4) and remove the charging valve
(1) by loosening nut (2) and removing preformed
packing (5). Discard removed preformed packing.
2-19.2
)
NOTE
Lubricate all packings and preformed
packings with hydraulic fluid
1.Install charging valve (1) by tightening nut (2) and
using new preformed packing (5) (LCM NO. 00031).
Torque tighten (AGE NO. 00054) to 102 in lb thru 111
in lb (1.2 mKg thru 1.3 mKg).
2.Install new locking wire (4).
3.Perform nitrogen pre-charge. CHARGING THE
PRESSURE ACCUMULATORS (refer to manual
).
4.Set up the hydraulic test stand (AGE NO. 00262) as
follows: delivery pressure 3000 psi (210 Kg/cm
²
).
5.Annul the hydraulic pressure in the No.1 (No.2)
hydraulic system and check after 5 minutes that the
pressure gauges indicate 1450 psi (100 Kg/cm
²
).
6.Replace the protective cap (3) on the charging valve
(1) and tighten nut (2). Torque tighten (AGE NO.
00054) nut to 15.5 in lb thru 26 in lb (0.2 mKg thru 0.3
mKg).
FOLLOW ON MAINTENANCE:
1.Close the access panels 414D and 414J (424D and
424J).
2.Remove maintenance platform (AGE NO. 00074).
3.Connect external electrical power (refer to manual
29-10-25
2-129