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 (6) Clogged air filter. Clean or replace element (par.10/).
(7) A i r i n h y d r a u l i c s y s t e m ( M 2 7 0 A 1 ) . B l e e d h y d r a u l i c
s y s t e m (par. 66b).
(8) L e a k s i n h y d r a u l i c s y s t e m ( M 2 7 0 A 1 ) . L o c a t e l e a k .
T i g h t e n connections or replace broken lines.
(9) G r e a s e o n b r a k e l i n i n g . R e p l a c e b r a k e s h o e ( p a r .
57a and d (M269 and M270) and TM 9-1827C
(M270A1) and check and replace oil seal, if damaged
or worn (par. 53a(3)).
(10) Worn Brake lining. Adjust brakes (par. 56).
(11) W o r n - o u t b r a k e l i n i n g . Replace brake shoes (par. 57a
a n d d (M269 and M270) and TM 9-1827C (M270A1)).
Make serviceability
(12) D e f e c t i v e b r a k e a i r c h a m b e r .
tests (pars. 62a and 63a).
(13) Defective brake wheel cylinder ( M 2 7 0 A 1 ) . I n s p e c t
b r a k e wheel cylinders (TM 9-1827C).
(14) Defective or ineffective hydraulic master cylinder
( M 2 7 0 A 1 ) . M a k e brake air chamber push rod travel
R e p l a c e defective master cylinder
test (par. 62b).
and d).
(15) D e f e c t i v e b r a k e c a m s h a f t f o l l o w e r r o l l e r ( M 2 7 0 a n d
M269) .
N o t i f y ordnance maintenance personnel.
d. Slow Brake Application or Slow Release.
(1) L o w a i r p r e s s u r e . C h e c k a i r p r e s s u r e g a g e o n t o w -
i n g vehicle. Make leakage tests (pars. 60a, 61a, 62a
6 3 a , and 65).
Check for restriction in air lines.
L o o k for bent or dented air
(2) R e s t r i c t i o n i n a i r l i n e s .
lines.
(3) Clogged air filter. Clean or replace element (par. 10f).
(4) Defective emergency relay valve. M a k e
serviceability
tests (par. 60 b).
(5) Weak or broken brake shoe tension spring. R e p l a c e
spring (par. 57a and d (M269 and M270) and TM
9-1827C (M270A1)).
(6) A i r i n h y d r a u l i c s y s t e m ( M 2 7 0 A 1 ) .
Bleed
hydraulic
system (par. 66 b).
(7) Defective brake air chamber. Make serviceability tests
(8) D e f e c t i v e b r a k e w h e e l c y l i n d e r s ( M 2 7 0 A 1 ) . I n s p e c t
b r a k e wheel cylinders and replace if necessary (TM
9-1827C).
(9) D e f e c t i v e o r i n e f f e c t i v e h y d r a u l i c m a s t e r c y l i n d e r
TACO 1321B
75
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