Power Unit Assembly; Insert Valve; Solenoid Valve "C"/Four-Way Valve; Crossover Relief Valve - Disassembled - Dodge D150 1990 Service Manual

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ACCESSORIES 1 - 15
BASE
P
O-RING
f | RETAINER
SPRING
BALL
INSERT
VALVE
O-RING
RB532
Fig. 11 Insert Valve—Exploded View
BRASS NUT
COIL
O-RINGS
SNAP RING
O-RINGS
O-RING
NOTE: NYLON WASHERS
AND O-RINGS SHOULD
TAPER DOWN TO VALVE SHAPE
FROM VALVE DOWN.
LOCK NUT
VALVE CARTRIDGE
SPRING
PLUNGER
VALVE
NYLON WASHER
NYLON WASHER
NYLON WASHER
RB533
Fig. 12 Solenoid Valve "C"/Four-Way
Valve—Exploded View
(25) Disassemble t h e four-way valve (Fig. 12). Dis-
card the O - r i n g seals (Fig. 12).
(26) Test solenoid valve " B " and " C " coils for elec-
t r i c a l c o n t i n u i t y . T h e n o r m a l coil D C resistance i s
3.7 ohms.
(27) Remove t h e p i l o t "check" valve p l u g , t h e
spring a n d t h e b a l l from t h e bottom of t h e valve
block.
(28) Inspect t h e s p r i n g for damage and t h e b a l l
seat for nicks.
(29) Remove t h e acorn n u t for access t o t h e cross-
over valve components (Fig. 9).
(30) Remove t h e crossover valve components (Fig.
13). Inspect for e x t e r n a l damage. Discard the O - r i n g
seals.
(31) W i t h a l l t h e components removed from t h e
block, clean t h e block w i t h compressed a i r to remove
a l l foreign m a t e r i a l .
POWER UNIT ASSEMBLY
Before assembly, ensure t h a t a l l components are
thoroughly clean a n d free o f a l l foreign m a t e r i a l . Use
replacement gaskets and seals d u r i n g assembly. Pe-
t r o l e u m j e l l y (or a n equivalent l u b r i c a n t ) m a y be
used as a n a i d i n positioning and i n s t a l l i n g t h e r u b -
ber O-ring seals.
ALLEN
HEAD
SCREW
BALL
PILOT CHECK
SPRING
PRESSURE PLUG
GUIDE
SPACER
" * > N ^ f > WASHER
O-RING v.
O-RING
CAGE
O-RING
POPPET
* SPRING
DISC
* ADJUSTMENT SCREW
ACORN NUT
RB534
Fig. 13 Crossover Relief Valve—Disassembled
(1) I n s t a l l t h e crossover valve components i n t h e
valve block w i t h replacement O-ring seals (Fig. 13)
(2) I n s t a l l t h e b a l l , spring and pressure p l u g w i t h a
replacement O - r i n g seal i n t h e bottom of the valve
block (Fig. 13)
(3) Assemble solenoid valve " C " (four-way valve)
w i t h replacement O - r i n g seals a n d n y l o n r e t a i n e r
rings (Fig. 12).
(4) I n s t a l l solenoid valve " C " (four-way valve) w i t h
Tool J-25399 (Fig. 9).