Special Features:

Gold seal chamber/spring. Combination long stroke size 3030. Fully threaded push rod. Orange alert stroke indicator. Piloting diaphragm. Piloting shield, epoxy powder coated spring and housing, zinc plated spring chamber-permantly attached for safety. 0 degree service clamp angle, 90 degree port angle, available stroke 3.00 inch, length of piggyback center body 9.5 inches, 7.2 inches dinsion at spring housing, 6.3 inches dimension at rolled seal, 10.2 inches dimension at service clamp head, 7.8 inches dimension at service diaphragm, 10.00 inch face of the studhousing to the tip of the service push rod, weight each 8.9 kg. Gold seal chamber/sprin brake replaces 3030054 and ma15473 stud spacing 4.75 inches. Stud type 5/8 inches x 11 unc grade 5 stud length: 1.500 inches push rod thread5/8 x 18 unf air port threads 3/8 x 18 nptf

Properties:

A mechanical device employing a flexible dished diaphragm to convert air pressure into physical force to actuate the brake shoes of a vehicle. see also actuator, safety; actuator, spring brake; and rotochamber.