Engine Maintenance
96
NOTE: If the condenser fan does not slide
on the fan shaft with light tapping, remove
the small access panel located on the
condenser coil header above the expansion
tank. Thread a 1/4-20 x 1 in. diameter bolt
into the end of the fan shaft. Tighten the bolt
and washer down on the condenser fan hub
to loosen the blower wheel. Drive the blower
wheel back to provide 1/2 in. (13 mm)
clearance between the blower wheel and
condenser fan inlet ring.
6. Lift the belt up over the condenser blower
wheel and remove it from the unit.
Installation
1. Slip the belt over the condenser blower wheel
and place it in the condenser fan pulley.
2. Drive the condenser blower wheel out toward
the condenser fan inlet ring using a soft
hammer.
3. Position the blower wheel so the edge of the
inlet ring lines up with the alignment mark on
the blower wheel.
4. Check the radial clearance between the blower
wheel and inlet ring with a gauge wire. Check
around the entire circumference to the inlet
ring and blower wheel (see “Condenser and
Evaporator Fan Location” in the Structural
Maintenance chapter).
5. Torque the blower hub clamping bolts to
18 ft-lb (24 N•m).
6. Seat the upper belt in the blower wheel pulley
groove.
7. Push inward on the idler adjusting arm and
slip the belt into the idler pulley groove.
8. Pull the idler adjusting arm forward and install
the lower fan belt.
Model 50 Belt Adjustments
Alternator Belt Adjustment
The alternator belt tension should read 29 on the
belt tension gauge.
1. Loosen the alternator pivot bolt and the
adjusting arm bolt.
2. Move the alternator on the adjusting arm slot
to adjust the belt to 29 on the belt tension
gauge.
3. Tighten the adjusting arm bolt and alternator
pivot bolt.
Compressor Belt Adjustment
The compressor drive belts should read 79 on the
belt tension gauge.
1. Loosen the back-up hex nut on the belt
tensioner compression spring adjustment
screw.
1.
Blower Wheel
2.
Inlet Ring
3.
Alignment Mark
4.
Edge of Inlet Ring
Figure 87: Condenser Blower Alignment
4
3
2
1
AEA749
Содержание SB-210
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Страница 12: ...List of Figures 12 ...
Страница 31: ...Unit Description 31 Unit Photos Figure 6 Front View AJA1617 ...
Страница 32: ...Unit Description 32 1 Defrost Damper 2 X430L Compressor 3 TK 486 Engine Figure 7 Back View 2 3 1 AJA1930 ...
Страница 36: ...Unit Description 36 ...
Страница 49: ...Operating Instructions 49 Figure 32 Viewing Sensors Screen Sequence ...
Страница 54: ...Operating Instructions 54 Figure 40 Datalogger Screen Sequence ...
Страница 101: ...Engine Maintenance 101 ...
Страница 102: ...Engine Maintenance 102 ...
Страница 140: ...Electric Standby Diagnosis 140 ...
Страница 150: ...Index 150 ...
Страница 152: ...Wiring Diagram Index 152 ...
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