Bendix Commercial Vehicle Systems EVERSURE SPRING BRAKE - Manual

1
®
WARNING
SPRING BRAKE CHAMBERS CONTAIN A LOADED
COMPRESSION SPRING. PROPERTY DAMAGE,
SERIOUS INJURY OR DEATH MAY OCCUR IF THESE
INSTRUCTIONS ARE NOT FOLLOWED COMPLETELY.
NEVER attempt to remove a spring chamber crimped
band.
Follow all industry safe maintenance practices, including
those listed on page two of these instructions.
1.0 DESCRIPTION
The Bendix ® EverSure ® spring brake is made up of a
conventional brake chamber and an emergency, or parking,
spring mechanism for use on vehicles equipped with cam
foundation brakes. The spring brake actuator provides:
(1) service braking, (2) parking and (3) emergency
braking. The actuator can be piped with various system
arrangements to be automatically, or manually, applied
under emergency braking conditions.
The spring brake is a diaphragm-type actuator which
converts the energy of air pressure into mechanical force.
FIGURE 1 - BENDIX ® EVERSURE ® SPRING BRAKE
Bendix ® EverSure ® Spring Brake with No Touch ™ Technology
SD-02-4525
PARKING/ EMERGENCY
BRAKE HOUSING
NON-SERVICEABLE
NO TOUCH ™ POWER
SPRING
SERVICE
PUSH-ROD
SERVICE RETURN
SPRING
SERVICE
CHAMBER
RELEASE
TOOL T-BOLT
T-BOLT
STORAGE
POCKET
NON-PRESSURE
HOUSING
YOKE
SERVICE
DIAPHRAGM
CLAMP
BAND
NON-SERVICEABLE
PARKING DIAPHRAGM
NON-SERVICEABLE
SECTION SEALED WITH A
CRIMPED BAND
DUST CAP INSTALLED
DUST CAP
REMOVED
RELEASE
TOOL
T CAP
Index
Section Page
1.0 Description . . . . . . . . . . . . . . . . .1, 3
2.0 Safe Maintenance Practices . . . . . . . . . 2
3.0 Preventive Maintenance . . . . . . . . . . . 3
4.0 Operation and Leakage Tests. . . . . . . . . 4
5.0 Operation: General . . . . . . . . . . . . . . 4
6.0 Mechanical Release (Caging) of the
Bendix ® EverSure ® Spring Brake . . . . . . . 4
7.0 Clocking (Rotating) the Bendix Service
Replacement Spring Brake Chamber. . . . . 5
8.0 Mechanical Release (Caging) and Removal
of the Piggyback Spring Brake Chamber to
be Replaced . . . . . . . . . . . . . . . . . 6
9.0 Installing the Bendix ® EverSure ® Piggyback
Spring Brake Chamber . . . . . . . . . . . . 6
10.0 Un-Caging the Bendix ® EverSure ® Spring
Brake Chamber (Apply Park Brake) . . . . . 7
11.0 Removal and Installation of the Combination
Spring Brake . . . . . . . . . . . . . . . . . 7
12.0 Replacing the Service Diaphragm . . . . . . 8
(Piggyback spring brake components
are not serviceable, and are shown
here for informational purposes only.)