Thermo King Spectrum DE 30-2, Manual, Page: 100 / 140

Structural Maintenance
100
Condenser and Evaporator Fan
Location
When mounting the condenser or evaporator fan
and hub assembly on the fanshaft, the blowers and
inlet orifices must be properly aligned for proper
air flow and to prevent damage to the blower.
Condenser Fan Blower Alignment
1. Loosen the condenser inlet ring (spinning) on
the condenser coil bulkhead.
2. Slide the blower towards the inlet ring until it
contacts the inlet ring. This centers the inlet
ring in the blower orifice.
3. Tighten the inlet ring securely.
4. Slide the blower away from the inlet ring.
5. Pass a gauge wire completely around the
blower orifice to check for uniform clearance.
6. Spin the blower by hand to check for blower
distortion.
7. Position the blower so the edge of the inlet
ring lines up with the alignment mark on the
blower.
8. Torque blower hub bolts to 18 ft-lb (24 N•m).
Evaporator Fan Blower Alignment
1. Loosen the inlet rings on the sides of the
blower housing.
2. Center the blower wheel in the blower housing
with equal overlap on both inlet rings. The
overlap on each ring should be approximately
0.15 in. (3.8 mm).
3. Tighten the hub bolts that hold the blower
wheel on the fanshaft. Torque the blower hub
bolts to 18 ft-lb (24 N•m).
4. Center the inlet rings in the blower orifices.
Tighten the inlet rings securely.
5. Check the radial clearance by passing a wire
completely around the circumference of the
inlet rings and the blower wheel.
6. Position the seal housing on the inner panel so
the seal is centered on the spacer and the
spacer spins freely in the seal.
1. Blower Wheel 3. Alignment Mark
2. Inlet Ring 4. Edge of Inlet Ring
Figure 70: Condenser Blower Alignment
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1
2
3
4
1. Check Clearance with a Wire
2. Blower Housing Sides
3. Inlet Rings
4. Evaporator Blower
5. Radial Clearance
6. Equalize Blower Inlet Overlap
Figure 71: Evaporator Fan Location
AEA720