This task covers:
Tool kit, refrigeration SVC
General Safty Instructions
Evaporator access door open
Voltages used can kill. Always disconnect power
cord to air conditioner before performing any
internal maintenance. Shutting unit off at its
control panel does not disconnect unit power.
Remove two grooved pulleys (1) and (2) and bushing (3).
(1) Install two grooved pulleys (1) and (2) and bushing (3).
To allow evaporator fan speed selection, two side-by-side pulleys are provided on the blower
drive shaft and an adjustable sheave pulley is provided on the fan motor. Moving the fan belt from one pulley to the other
provides a gross adjustment. Fine adjustment is obtained by the adjustable pulley.