
MG-2/AST4 Installation
10 1/10/2018 Bradley • 215-1325 Rev. U; ECN 17-08-026
Components Assembly
To access air valve:
Remove access panel by removing (5) screws and finishing washers using a 5/32" Allen socket wrench.
To remove sprayhead:
Remove (3) bolts located underside of bowl neck. Carefully remove sprayhead from bowl.
To access aerator and pushbutton assembly:
Remove (2) screws and washers from the access plate assembly using a 1/8" Allen socket wrench. The access plate assembly
is located underneath the sprayhead at (2) places. The assembly will drop down to access the lens, housing flow control, tube
connector and pushbutton assembly.
To remove/reassemble pushbutton assembly:
Remove one screw (P/N 160-165) from the pushbutton bracket. Hold the housing with the piston and spring together while
removing the remaining screw (P/N 160-165).
After the pushbutton housing is removed, remove the nut (P/N 110-115) and then the bracket (P/N 140-743) from the pushbutton
assembly. Remove the spacer (P/N 182-115) and pushbutton assembly (P/N S08-340) from the sprayhead.
To reassemble the pushbutton assembly, first insert the pushbutton into the hole in the sprayhead housing as shown below. Slide
the spacer onto the back of the pushbutton (inside the sprayhead housing) as shown. Attach the bracket (P/N 140-743) to the
pushbutton and secure into place with the nut (P/N 110-115). Insert the spring and piston into the housing. While holding the
assembly together, insert one screw (P/N 160-165) into the housing.
Insert the screw with housing into the bracket on the pushbutton assembly. After the first screw is inserted, rotate the housing so
that the piston is facing the front of the unit. Insert the second screw (P/N 160-165) into the bracket and secure the housing in
place.
Pushbutton
Assembly
(S08-340)
Duckbill
(198-010)
Nut
(110-115)
Spacer
(182-115)
Piston
(119-227A)
U-Cap
(125-099)
Screw (2)
(160-165)
Pushbutton
Housing
(118-279)
1/8" Tube
Connector
(169-890)
Spring
(135-065)
When removing screws, the housing assembly will drop down. If the housing, piston and spring are not held
together, the piston will pop out of the housing.
For ease of insertion, hold the pushbutton housing so the piston is facing the rear of the unit.