Sears 661.62442 Motor Pulley Adjustment Figure, Coolers Must be Adjusted, Startup Inspection

IINSTALLATION

MOTOR PULLEY ADJUSTMENT (Figure 13)

NOTE: ALL DUCT CONNECTED

COOLERS MUST BE ADJUSTED

Long or small air ducts have excessive air resistance which decreases air output and motor amperage, You may compensate for this by adjusting the motor pulley. Use-a clamptype ammeter to check the motor amperage

1o Check amperage at the white lead in the wiring box,,

2If the amperage is less than the motor nameplate amperage, loosen the pulley pitch adjustment screw, turn the pulley _ turn clockwise, tighten the screw and recheck the amperes Repeat as necessary to bring the amperage to the name- plate rating°

PITCH ADJUSTMENT

SCREW

3.If the amperage is too high, turn the pulley coun- IMPORTANT

ter -	clockwise	as required.	NOTE:	When	checking amperage with			theammeter;
4 Adjust	the belt	tension as required	(See page	all louvers must be tn place in the cooler;
13).				otherwise		incorrect	setting	of the drive
				pulley	will	occur

STARTUP INSPECTION

Before starting the cooler, make sure al! installations and adjustments are correct. Be sure that:

Cooler is level and duct is sealed

e Cabinet is securely fastened to the mount

o Cooler is grounded Electrical connections are secure

o Blower wheel does not rub against housing.

o Water supply is turned on

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STARTUP CHECK LIST

To check out the installation follow this startup procedure Set the control to each position and check

operation per the following chart, Be sure to open windows or vents_,

OPERATION WITH SEARS SWITCH 32-6251

	(Five	Position)
		Blower	Pad
Switch		Motor	Motor_
Off		Off	Off
Low Veftt		Low	Off
High	Vent	High	Off
Low	Cool	Low	On
High	Cool	High	On

•Water line is connected securely and fittings and crossover tube grommets do not leak

e Float is adjusted for proper water level

o Pulley alignment is OK Belt tension is OK (See page 13)

o Pads are correctly installed (See page 13)

=Blower and both pad motors are plugged into receptacles

o All louver clips are snapped tight