9
Bradley •
215-1595 Rev. E; ECN 17-00-014
9/28/2017
Installation
S93-572, S93-573, S93-574
Bottom View - AST4
5.1 Test the Installation - AST4
Make sure both stop valves are fully open.
The air valve timer is located next to the
tube connector on the air valve body. The
timer is capped with a filter to prevent dirt
build-up on the timer. The air valve timing
can be adjusted from 0–45 seconds.
A
Turn on the water supply to test the unit
and check for leaks .
B
Press the two push buttons several
times to purge air from the lines .
5.1.1 Adjust Air Metering Valve
A
Unscrew the timer cover and use a
screwdriver to tighten or loosen the
timer . Turning the timer clockwise
increases the time; turning the timer
counterclockwise decreases the time .
Be careful not to overtighten as the
timer seat can be damaged .
B
Continue to adjust until the timer is set
at desired length .
C
Replace the timer cover over the timer .
Washer
(142-008)
Nut 5/16-18
(161-036)
Nut 1/4-20
(160-026)
Washer
(142-002BS)
AST4 Ganged Valve
ASSY . (S08-1442TMA)
Timer Assembly
Timer Cover
