TM9-4120-401-14
4-45.
H E A T E R ELEMENTS (HR1-HR6). - continued
(10) Slip mounting bracket (3) and heating elements (1) assembly out of unit.
(11) Remove nut (22), look washer (23), flat washer (24), insulating washer (25) and heating element (1).
(12) Carefully install new heating element (1) into mounting bracket (3) and secure with insulating washer
(25), flat washer (24), lock washer (23), and nut (22).
(13) Slip mounting bracket (3) and heating elements (1) assembly into unit.
(14) Secure mounting bracket (3) with four sets of screws (19), lock washers (20), and flat washers (21).
(15) Install heater support (2) onto heater elements (1) and secure with two sets of screws (16), lock
washers (17), and flat washers (18).
(16) Pass wire leads through mounting bracket (3).
(17) Secure wire leads with clamp (15), stand off (14), sorew (11 ), bck washer (1 2), and flat washer (1 3).
(18) Connect wire leads to frost switch (10) using tags and wiring diagram (figure 4-6). Remove tags.
(19) Connect wire leads to heater relay (9) using tags and wiring diagram (figure 4-6). Remove tags.
(20) Secure wire leads with tiedown straps as neoessary.
(21 ) Connect terminal post (5) to unit using screw (6), lock washer (7), and flat washer (8).
(22) Connect wire leads to terminal pest (5) using tags and wiring diagram (figure 4-6). Remove tags.
(23) Install channel gasket (4) between mounting bracket (3) and unit.
NOTE
FOLLOW-ON MAINTENANCE:
4-112