Table of Contents
Advertisement
BRAKES
5-49
SQUARE SECTIONED O-RING
VALVE RETURN SPRING
VALVE PLUNGER
\
without contacting the studs. See Fig. 5-85.
Fig. 5-78 Diaphragm and Plates
6. The center section of the gauge has two levels. The
piston rod should always contact the longer section (lower
level) of the gauge. The piston rod should never contact the
shorter section (higher level) of the gauge. Move gauge from
side to side to check piston rod height.
7. Any variation beyond these two limits must be
compensated for by obtaining the service adjustable piston
rod and adjusting the self-locking screw to meet the gaging
specifications.
8. Wipe a thin film of silicone lubricant on the I.D. of
the front housing seal and position seal in the depression in
the housing.
DISASSEMBLY OF DELCO MORAINE
POWER BRAKE UNIT
F and X Series
On the X Series cars only, the single diaphragin booster
can be separated with the booster on the car.
1. Scribe a line across front and rear housing to facilitate
reassebmly.
2. Install Tool J 22805-01 at front housing. Insert a 22"
long
x
1-1/4" square channel tube in end of tool.
3. Using a 14" crescent wrench or equivalent, twist the
square channel tube counterclockwise enough to separate
front housing from rear housing.
4. Remove front housing & power position return spring.
Advertisement
Table of Contents
