BEFORE YOU BEGIN
Inspect unit for damage, report any shipping damage to carrier. Check all fasteners, re-tighten as required. Rotate the blower wheel by hand
to ensure free rotation. If rubbing occurs, loosen the set screw(s), re-position the wheel to the shaft center, re-tighten set screws.
600 SERIES UTILITY BLOWERS
600 SERIES_04_08_22
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4
1.
Secure the exhauster to the curb cap or sleepers (supplied by others) through the 3/4” diameter holes provided in the base of the
motor compartment and leg. For proper motor compartment ventilation, if the unit is mounted on a floor or solid surface, provide a
minimum 1” clearance to the motor cabinet bottom. Install spring isolators or duct isolators where required.
2.
Complete all subsequent duct connections.
3.
Rotate the blower wheel by hand. It should not rub against the housing inlet. If rubbing occurs, loosen the set-screws on the
wheel hub and shift the wheel to obtain clearance. Re-tighten all set-screws.
INSTALLATION
DESCRIPTION
• The Delhi 600 series Utility blower comes standard with a top horizontal discharge position that can easily be field rotated to any
of 8 positions.
• The motor and drive compartment is vented with handles, for safety and weather protection.
• Standard heavy duty pillow block ball bearings are included with the unit.
MOTOR, PULLEYS & BELTS
(See Table on next page)
1.
Insert the four motor nuts and bolts up through the bottom of the sliding motor platform to match the bolting configuration of the motor
to be installed. The master hole for smaller motor frames is located at the top left hand corner of the motor platform furthest from the
blower housing. The master hole for 213T, 215T and 254T frame motors is 2” inset from the aforementioned master hole for smaller
frame motors.
2.
Mount the blower sheave on the blower shaft and tighen its set-screw securely on the key of the shaft. (
see Ta
b
le 1
for drive data).
3.
Mount the motor sheave on the motor shaft. Leave some clearance between the pulley and the motor end bell. Tighten the set-screws
on the key of the motor shaft.
4.
With the motor platform in its highest position install the V belt within the sheave grooves. Adjust the sheave on the blower shaft to ensure
proper pulley alignment
(see figure 1)
and secure in place. A straight edge across the face of the driven pulley should be parallel to the
belt once proper alignment has been achieved.
5.
Loosen the four clamping bolts around the motor platform and slide the motor platform within the slottted rails to adjust belt tension.
Ideal belt tension is the lowest tension at which the belt will not slip during start up. A rule of thumb is that 3/4” of deflection mid span
under medium finger pressure (2-3 lbs) for every foot of span is approximately proper belt tension. Tighten the motor platform
clamping bolts once proper belt tension has been achieved.
WARNING
EXCESSIvE bELT TENSION IS ThE MOST fREQUENT CAUSE Of bEARING WEAR AND RESULTING
NOISE. PROPER bELT TENSION IS CRITICAL fOR QUIET EffICIENT OPERATION.
Ideal belt tension is the lowest value under which belt slip will not occur at peak load conditions.
