S E C T I O N I l l . M A I N T E N A N C E
2 - 5 . G E N E R A L .
O F H Y D R A U L I C L I N E S A N D F I T T I N G S
a. This section contains instructions on repair of hydraulic lines and fittings. Repair of hydraulic
lines and fittings consists of replacement of preformed packings, tube fitting locknuts, Iockwashers,
and defective sleeve spacers and washers. Pages 2-19 and 2-20 show exploded views of typical
hydraulic lines and fittings used on the vehicle and give procedures for disas-sembly and reassembly
of fittings. For complete inspection procedures, refer to b. and c. below. Refer to TM 9-2350-238-
24P-1 for ordering of authorized parts. Ensure hydraulic pressure is relieved before performing any
disassembly of hydraulic lines and fittings.
b. Inspect all unions, nipples, tees, reducers, plugs, elbows, and parts on which end fittings are
used for thread damage, fractures, corrosion, distortion, slivers, restrictions, sealing surface
scratches, and mutilation. Hex corners shall not be rounded.
Inspect tube assemblies for kinks, fractures, cracks, thread damage, restrictions, corrosion,
and mutilation. Tube ends shall be squared, deburred inside and out, unprimed, and unpainted from
sleeve flange to tube end. Tubes, 1/4 to 3/8 in. (6.35 to 9.53 mm) in diameter, shall show no
deformation of sleeves as a result of over application of torque. Repair is by replacement of
authorized parts (TM 9-2350-238-24P-1) which do not meet inspection criteria.
R E A S S E M B L Y
2 - 6 . T U B E E L B O W T O T U B E F I T T I N G .
D I S A S S E M B LY
Remove tube fitting locknut (1), sleeve spacer
(2), tube elbow (3), tube fitting locknut (4), flat
w a s h e r ( 5 ) , a n d p r e f o r m e d p a c k i n g ( 6 ) .
Install new preformed packing (6), flat washer
(5), new tube fitting locknut (4), tube elbow (3),
sleeve spacer (2), and new tube fitting locknut
( l ) .
2 - 7 . T U B E T E E T O T U B E F I T T I N G .
D I S A S S E M B L Y
1 R e m o v e t u b e f i t t i n g l o c k n u t ( 1 ) , f l a t w a s h er
(2), and preformed packing (3).
2 D i s c o n n e c t t u b e a s s e m b l i e s f r o m t u b e t ee
(4) and remove tube tee.
2 - 19