TM 5-3895-373-34
2.50
REPAIR TOW POINT FLOW CONTROL VALVE - Continued.
D.
ASSEMBLE.
NOTE
Use bench vise, as required, to
support tow point flow valve during
assembly.
1.
INSTALL PREFORMED PACKINGS AND
PACKING RETAINERS ON SLEEVE.
CAUTION
New seals and packings are distorted
during installation. Use care during
installation to prevent damage to
seals, preformed packings, and seal
grooves. Bypass leakage can result
from poor installation.
a.
Lubricate preformed packings (20, 23, 25, and
26) and packing retainers (21, 22, 24, and 27)
with petrolatum.
b.
Install packing retainer (27) and preformed
packings (26 and 25) on sleeve (14).
c.
Install packing retainer (24), preformed packing
(23),packing
retainers
(22
and
21),
and
preformed packing (20) on sleeve (14).
2.
ASSEMBLE FLOW ADJUSTMENT ASSEMBLY.
a.
Lubricate all preformed packings and packing
retainers with petrolatum.
b.
Install preformed packing (19) and packing
retainer (18) on stem (15).
CAUTION
Be careful not to damage preformed
packing when sliding over threads.
Sharp edges of thread can cut or
damage
preformed
packing.
Damaged
preformed
packing
will
cause
leakage
and
affect
performance.
c.
Install preformed packing (17) onto plug (16).
d.
Install stem (15) into plug (16).
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