Wash. Admin. Code § 204-76-99004

Current through Register Vol. 24-24, December 15, 2024

Section 204-76-99004 - Relationship of push rod and slack adjuster angle to brake force

The following diagram shows the relationship of push rod and slack adjuster angle to brake force:

RESULT

EVEN TORQUE (BRAKE INPUT)

BETWEEN BRAKE ADJUSTMENTS

*LAST HALF OF CAM	*FIRST HALF OF CAM ROTATION*
ROTATION*	BRAKE CHAMBER EFFICIENCY IS
LEVERAGE INCREASING	MAXIMUM AND LEVERAGE IS
TO THE MAXIMUM AND	MINIMUM AT BEGINNING OF
BRAKE CHAMBER EFFI-	STROKE. LEVERAGE INCREASES
CIENCY DECREASING	WITH THE INCREASED MOVE-
WITH LENGTH OF	MENT.
STROKE.

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POINT OF GREATEST LEVERAGE MOVEMENT PAST THIS POINT RESULTS IN LESS LEVERAGE, REDUCED INPUT AND LOWER BRAKE EFFICIENCY.

*FIRST HALF OF RATED TRAVEL* BRAKE CHAMBER IS AT THE MAXIMUM EFFICIENCY.

Wash. Admin. Code § 204-76-99004

Amended by WSR 14-03-018, filed 1/7/14, effective 2/7/2014

Statutory Authority: RCW 46.37.005. 80-10-006 (Order 80-07-01), § 204-76-99004, filed 7/25/80.