TM 10-4610-215-24
TM 08580A-24/2
WARNING
ELECTRICAL HIGH VOLTAGE
Electricity can cause serious injury or death. Be certain that all
power is removed before performing maintenance on electrical
equipment.
(5) Connect all wires to solenoid.
2-55. CIRCUIT BREAKERS.
a. General. The circuit breakers are used to protect the ROWPU electrical components from too much
current. The unit has six 208 Vat, 15A circuit breakers and three 120 Vat, 15A circuit breakers. This paragraph
describes removal, testing, inspection, and installation of the circuit breakers.
b. Removal. (Figure 2–59)
WARNING
ELECTRICAL HIGH VOLTAGE
Electricity can cause serious injury or death. Be certain that all
power is removed before performing maintenance on electrical
equipment.
(1) Release thirteen snap screws and open junction box assembly cover.
(2) Remove four screws (1) and four flat washers (2) from stand-offs and circuit breaker plate.
CAUTION
Pulling on wires can damage wires and terminals. Take care
when moving circuit breaker panel.
(3) Carefully tilt circuit breaker plate forward to reach wires.
NOTE
Identify and tag all wires before disconnecting them. Remove
wire tags after circuit breaker is installed and checked.
(4) Remove six nuts (3), six flat washers (4), all wire lugs (5), and six more flat washers (4) from 208 Vac
circuit breaker. Remove all wires from circuit breakers (9) on the R.O. and backwash pump circuit breakers, and
remove two plug–in wires (11) from spade lugs (10).
NOTE
Small (120 Vat) circuit breakers have only two nuts, two wire
lugs, and four flat washers.
(5) Tilt circuit breaker plate back upright.
(6) Remove six screws (6), six lockwashers (7), and six flat washers (8) from circuit breaker plate.
NOTE
Small (120 Vat) circuit breakers are mounted on the circuit
breaker plate with only two screws, two lockwashers, and two flat
washers.
(7) Remove circuit breaker (9) from circuit breaker plate.
2-113
