BRAKES - AIR
TRUCK SERVICE MANUAL
clamp and boot assembly to non-pressure.
Remove rivets and separate boot and retainer
clamp from non-pressure housing using the following:
1. Carefully center punch rivets in center of
Make certain clamp and boot assembly is firmly
fastened to non-pressure housing and tap rivets
from outside non-pressure housing squarely into
2. Use drill 1/32" smaller than body of rivet
remaining 2 rivet holes with a flat head drift.
(9/64" dia. drill) to drill through head.
Form the rivet head with correct rivet set.
Press out rivets.
Remove bolts and nuts and repeat riveting
Remove old diaphragm boot and retainer
procedure for two remaining holes.
clamp from housing.
Install diaphragm plate push rod through new
REASSEMBLE AIR CHAMBER
boot and press wedge guide all the way onto
end of push rod.
Position the lip of new retainer clamp over lip of
new diaphragm boot and place complete
NOTE: Replace wedge guide if necessary.
assembly into non-pressure housing so that rivet
holes are in alignment.
Install diaphragm over plate and onto
nonpressure housing. Assemble pressure half
Install appropriate size bolts and nuts in two rivet
and clamp ring in reverse manner of
apart and fasten retainer