TM 10-4610-239-24
TM 08580B-24/3
DISASSEMBLY.
a. Position backwash timer box (1) on workbench and open cover (2).
b. Loosen two setscrews (3) and remove indicator knob (4), nut (5), four screws (6), and plate (7).
c.
Remove locknut (8) and reset switch (9).
d. Remove cable locknut (10) and pull power cable (11) to remove slack from wires (12).
e. Loosen one screw (13) at a timeand remove and tag each wire (12) as it comes free of backwash
timer box (1).
f.
Tag and disconnect 13 wires (14) and cut all wire ties.
g. Loosen setscrews (17) and remove extension adapter (18).
h. Remove two spring-loaded screws (19), cut wire tie (20), tag and disconnect two wires (21), and
remove motor (22).
i.
Remove six screws (23), pull subplate (24) out, remove two nuts (25), microswitch (26), and
subplate (24) .
j.
Remove two screws (27), washers (28), and microswitch (29).
k.
Remove two screws (30) and pull terminal strip (31) with tagged wires (14) away from back wall
of backwash timer box (1).
NOTE
Mark location of cam activating pin on box before removal.
1. Remove cam (32).
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