welds. Repair broken welds or replace if damaged.
(3) Inspect the float for damage. Replace if necessary.
(4) Inspect the support bracket inside the water tank for secureness of mounting. Reinforce with a tack
weld if the bracket is loose.
(5) Inspect the upper and lower arms for straightness or thread damage. Replace if necessary.
(6) Inspect the packing nut, pin, elbow and pointer for damage. Replace if necessary.
(7) Use new packing when reassembling the gage.
d. Reassembly and Installation.
(1) Insert the upper arm (4) in the collar (5) from inside the water tank.
(2) Install the elbow (1) on the threaded end of the upper arm (4).
(3) Screw the float on the lower arm (2) and screw the lower arm with float attached into the elbow (1).
(4) Position new packing (7) on the upper arm and secure with packing nut (8).
(5) Position the pointer (10) on the upper arm (4) so that the pointer is on the empty mark and secure
in this position with a pin (9).
(6) Check to see that the float moves without binding. If movement appears to be binding or loose;
tighten or loosen the packing nut (8) accordingly.
(7) Fill the water tank.
102. Water Discharge Pressure Gage
a. Removal.
(1) Unscrew water discharge pressure gage (31, fig. 33) from nipple (29) connecting water discharge
pressure gage to discharge elbow (25).
(2) Unscrew elbow (28) from discharge elbow (25).
b. Installation.
(1) Using an approved thread sealer, dope all pipe threads. Screw elbow (28) into discharge elbow
(25).
(2) Screw water discharge pressure gage onto nipple (28) connecting water discharge pressure gage to
discharge line.
103. Signal Gongs
a. Removal.
(1) Disconnect signal gong pull cords from signal gong (4, fig. 2).
(2) Remove four screws and nuts securing signal gongs to bracket and remove signal gongs.
b. Disassembly.
(1) Remove the acorn nut securing bell to the bracket and remove the bell.
(2) Detach the spring from the bracket and the gong arm and remove the spring.
(3) Detach spring from bracket and gong arm and remove the spring.
c. Cleaning, Inspection, and Repair.
(1) Clean all parts with an approved cleaning solvent.
(2) Check the bell for cracks and replace if necessary.
(3) Check the gong arm and lever for freedom of movement of the pivot points and replace the
complete assembly if it is defective.
(4) Check the tension of the springs and replace where necessary.
(5) Replace frayed or otherwise defective cables.
d. Reassembly.
(1) Install spring on the bracket and the gong arm.
(2) Install spring on bracket and gong arm.
(3) Position the bell on the bracket and secure with acorn nut.
e. Installation.
(1) Position gongs on brackets and secure with four screws and nuts.
(2) Connect pull cords.
AGO 6871A
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