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ME 4120-243-14/4-13
Setscrew, 1/4-28 x 1/4
Collar
Screw, cap, hex-hd, 1/4—28 x 1
Washer, lock, spr, 1/4 in.
Washer, flat, 5/8 OD
Motor
Washer, flat, 5/8 OD
Bushing
Mounting plate
Figure 4-13. Condenser fan motor and mounting plate, exploded
view.
4-39.
Fan Motor Thermal Protector
Replacement
a. General. Organizational repair of motors is
limited to testing and replacement of defective
thermal protectors. Thermal protectors for single
phase motors are imbedded in motor windings and
cannot be removed for repair. Instructions con-
tained in this paragraph cover replacement of three
phase motor thermal protectors.
b. Removal. Refer to figure 4-14 and partially
remove thermal protector housing from motor by
removing two screws and washers. Tag and
disconnect electrical leads. Remove thermal
protector. Remove other protector in the same
manner.
Figure 4-14. Motor thermal protector housing.
c. Testing. Check for continuity between ter-
minals. Replace protector if open.
d. Installation. Install thermal protector in
housing and connect leads. Install thermal
protector housing on motor and secure with screws
and washers previously removed.
4-40. Installation
a. Evaporator Fan Motor. Install evaporator fan
motor as follows:
( 1 ) Set motor on fan and motor base with
motor shaft in fan and motor shaft (fig. 4-11).
Install four cap screws and lock washers through
underside of base to secure motor. Tighten setscrew
in fan and motor shaft.
( 2 ) Install fan and motor assembly on resilient
mounts and install four screws and lock washers
(fig. 4-11).
(3) Install brackets above fan. Install tem-
perature selector switch bulb in clamps. Secure
clamps to fan with screws and lock washers.
(4) Refer to paragraph 4-25 and install
evaporator drain piping.
(5) Connect motor electrical connector.
(6) Refer to paragraph 4-18 and install
evaporator air inlet louver.
b. Condenser Fan Motor. Assemble motor on
mounting plate and install motor and mounting
plate as follows:
4-23
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