Haldex S-ABA, Руководство по обслуживанию

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Brake Adjuster Identification
Control Disc
Coil Spring
Wormshaft
Heat
Treated
Housing
Worm Wheel
Clutch Wheel
Regulator Gear
Adjustment Hex
One-Way
Clutch
The Part No.
P/N40920002
would be
our adjuster
part number
409-20002.
The Haldex S-ABA automatic brake adjuster is a clearance sensing brake adjuster
that maintains a nominal distance or clearance between lining and drum.
When the Adjuster is
Installed:
With the brake in the released
position, the control arm is
fixed to the anchor bracket.
The adjustment hex is rotat-
ed until the shoes contact the
brake drum and then backed
off 1/2 turn. When the brake is
applied on the first application,
the endless rack rotates to the
correct position and sets itself.
When the Brake Applies:
When the brake is applied, the
adjustment regulator rotates
through the normal clearance
angle and the shoes contact
the drum. The torque increases
and the wormshaft is moved
axially, causing the coil spring
to be compressed and the
clutch wheel to disengage.
The adjustment components
are free to rotate as the brake
continues to apply.
Part Number:
409-20_ _ _ = S-ABA Brake Adjuster
Serial Number:
First 3 digits = Day of year built
Last 2 digits = Year of build
1
When the Brake Releases:
When the brake is released, the torque decreases
returning the wormshaft to the clutch wheel and
re-engaging the teeth. The adjustment regulator rotates
through the normal clearance angle and the brake is
released. If lining wear has taken place the adjustment
regulator advances the clutch wheel reducing the excess
clearance during the release stroke.
S-ABA Identification
S-ABA Operation
Part Number
40920002
Serial Number
26802