TM 5-3805-262-20
4-2. FUEL SYSTEM MAINTENANCE
a. F u e l L i n e s. This task covers replacement of fuel lines located between elec-
tric fuel pump and fuel tank and fuel injection pump and fuel tank.
TOOLS: No. 1 Common Organizational Maintenance Tool Kit
Fixed open end wrench set
Automotive Mechanic’s Tool Kit
S l i p j o i n t p l i e rs
MATERIALS/PARTS: Clean cloths (Appendix C, item 1)
Cleaning solvent P-D-680 (Appendix C, item 2)
Detergent (Appendix C, item 3)
NOTE
PRELIMINARY PROCEDURE: Engine side panels removed (page 9-14).
REMOVAL (SHEET 1 OF 2)
Dry cleaning solvent P-D-680 used to clean parts is toxic and flammable.
W e a r p r o t e c t i v e g o g g l e s a n d g l o v e s a n d u s e o n l y i n a w e l l v e n t i l a t ed
a r e a . A v o i d c o n t a c t w i t h s k i n ,
e y e s a n d c l o t h e s a n d d o n ’ t b r e a t h e
v a p o r s .
D O not use near open flame or excessive heat and don’t smoke
w h e n u s i n g i t . F a i l u r e t o d o s o c o u l d c a u s e s e r i o u s i n j u r y . I f y ou
b e c o m e d i z z y w h i l e u s i n g c l e a n i n g s o l v e n t , g e t f r e s h a i r a n d m e d i c al
a t t e n t i o n i m m e d i a t e l y . I f c o n t a c t w i t h s k i n o r c l o t h e s i s m a d e , f l u sh
w i t h l a r g e a m o u n t s o f w a t e r.
If contact with eyes is made, wash eyes
with water and get medical aid immediately.
(1) Using clean cloths moistened with cleaning solvent P-D-680 clean fuel
return hose (1) and fuel supply hose (2) fittings at fuel injection pump
and fuel tank .
Diesel fuel is highly combustible. Do not smoke or allow open flames or
s p a r k s i n t o t h e a r e a . D e a t h o r s e v e r e i n j u r y m a y r e s u l t i f p e r s o n n el
f a i l t o o b s e r v e t h i s p r e c a u t i o n . I f y o u a r e b u r n e d , o b t a i n m e d i c a l a id
immediately.
(2) At fuel injection pump, tag, disconnect, and cap fuel return hose (1) and
fuel supply hose (2).
( 3 ) T a g f u e l r e t u r n h o s e ( 1 ) a t f u e l t a n k .
(4) Using pliers, expand clamp (3) while disconnecting fuel return hose (l);
remove clamp (3) from hose.
4-10
