Bendix Commercial Vehicle Systems EVERSURE SPRING BRAKE - Manual (Page 7)

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9.4 Assemble the service clamp assembly. Ensure
all parts are seated properly and remain centered (See
Figure 5).
9.5 Torque the clamp nuts to 20-30 ft/lbs. Remove the
locking pliers from the service push rod.
9.6 Connect the emergency air hose to the emergency/
parking port (“12”) and reconnect the service air line to
the service port (“11”). Torque fi ttings to no more than 30
ft-lbs (40 Nm).
9.7 Pressurize the service half by putting air into the
service port. Do not exceed 120 psig. Perform the
Leakage Test (4.2).
10.0 UN-CAGING THE BENDIX ® EVERSURE ®
SPRING BRAKE CHAMBER
(APPLY PARK BRAKE)
10.1 Verify that the spring brake has been properly
installed on the spring brake bracket and properly attached
to the slack adjuster.
10.2 Apply air pressure (100-120 psi; 6.6-8.0 bar) to
restrain by air force the power spring.
10.3 Turn the release bolt nut counter clockwise with a
hand wrench. (DO NOT USE HIGH SPEED OR POWER
DRIVEN IMPACT WRENCH)
10.4 Connect a regulated air line to the emergency/
parking brake port (marked “12”) of the chamber (if not
connected previously).
10.5 Continue to turn the release bolt nut until the caging
tool is loose. Remove caging bolt nut and washer.
10.6 Push the release bolt tool in, turn the release bolt
a quarter-turn counter clockwise and remove it from the
pressure plate key hole.
10.7 With hands clear of moving parts, slowly release the
air pressure to the emergency/parking brake port (“12”).
Be sure to exercise caution to prevent pinching of fi ngers.
10.8 Place caging bolt in spring brake tool holder with
T-head down and seated in slot. Install washer and nut up
on exposed threads (this allows the washer to protect the
holder cavity and caging bolt from corrosive elements),
and torque the caging bolt nut to 10-15 lb-ft (14-20 Nm).
10.9 Mount the dust plug /weather seal in the keyhole
located at the rear center of the spring brake chamber.
Check around the edge of the dust plug/weather seal to
be sure it is fi rmly seated.
IMPORTANT: Always re-install the tethered dust plug/
weather seal in the spring brake caging tool key hole.
Failure to do so will result in corrosion and foreign material
ingestion through the key hole which may void the warranty.
Do not use excessive force when installing the dust plug/
weather seal. Extreme force may cause damage and make
it unusable.
Replacement dust plugs can be purchased from your local
Bendix distributor.
WARNING
Check for proper service and emergency operation
after servicing any part of the brake chamber(s). Check
the brake adjustment if the combination spring brake
was removed/installed. (Follow the vehicle manufac-
turer’s instructions to adjust the brakes).
11.0 REMOVAL AND INSTALLATION OF
THE COMBINATION SPRING BRAKE
11.1 SERVICE BRAKE CHAMBER
REPLACEMENT AND CLOCKING
CAUTION: Replace the brake chamber with the same type
and size as originally installed on the vehicle. Replacement
with alternate equipment (without written authorization from
Bendix and the vehicle manufacturer) could compromise
brake performance. Brake chambers can be clocked to
ensure the proper alignment of mounting studs, drain holes
and ports.
WARNING!
Do not mechanically release (cage) the spring if there
is any structural damage to the spring brake chamber.
Caging the spring in such a chamber may cause seri-
ous injury or death. Replace the complete assembly.
11.2 REPLACING THE COMBINATION
SPRING BRAKE
11.2.1 Mechanically release (cage) the old spring
brake chamber by following the original manufacturer’s
instructions (or use Section 8 for Bendix
® brand spring
brakes).
11.2.2 Drain system pressure and then disconnect the
air hoses from the service brake chamber. Be sure to mark
both hoses to ensure proper re-installation.
11.2.3 Remove the cotter and yoke pins, disconnect the
yoke from the slack adjuster, remove the mounting nuts,
washer, and lock washers and remove the combination
spring brake. While removing, use care to prevent the
combination spring brake from falling.
11.2.4 Remove the brake chamber mounting hardware
from the mounting studs.
11.2.5 Remove the service brake chamber from its
mounting bracket.
11.3 CLOCKING (ROTATING) THE
REPLACEMENT BRAKE CHAMBER
See Section 7 for clocking instructions.
INSTALLATION:
11.3.1 Clean and inspect the mounting bracket. Mount
the service brake chamber to the mounting bracket.