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Structural Maintenance (Rev. 04/03)
94
DEFROST DAMPER
Check the damper during scheduled maintenance inspec-
tions for shaft wear, end play and sealing against air flow.
Position the damper so that the air flow is stopped top and
bottom with the solenoid plunger bottomed.
1.
If the damper does not close completely:
a.
Energize damper solenoid by placing a jumper
wire from 12 Vdc to No. 29 wire in the evaporator
harness.
b.
If damper blade closes, proceed to step 2. If not,
proceed to step 1.c.
c.
Remove the jumper wire, loosen the evaporator
outlet adjustment angle and move so when ener-
gized, the damper will close.
d.
Retighten the adjustment angle and repeat steps a.
and b.
Defrost Damper Adjustment
2.
If the damper blade does not seal evenly along full
width of blade:
a.
Loosen the damper bearing blocks.
b.
Manually close the damper so the blade makes
contact at the top and bottom of the funnel, the full
width of the blade.
c.
Retighten damper bearing blocks.
d.
Lube bearing block and shaft with low temperature
grease TK No. 203-386.
Summary of Contents for 088669
Page 4: ......
Page 8: ......
Page 12: ...Safety Precautions Rev 04 03 iv PUB126...
Page 13: ...Safety Precautions Rev 04 03 v aea105...
Page 14: ......
Page 28: ...Unit Description Rev 04 03 14 Rear View Curbside RD II SR Evaporator aea105...
Page 32: ...Unit Description Rev 04 03 18 Power Receptacle Box RD II SR 50 aea102...
Page 76: ...Refrigeration Maintenance Rev 04 03 62...
Page 77: ...Refrigeration Maintenance Rev 04 03 63...
Page 81: ...Refrigeration Maintenance Rev 04 03 67...
Page 103: ...89 Hilliard Clutch Maintenance Clutch Assembly...
Page 106: ...Hilliard Clutch Maintenance Rev 04 03 92 12 Install retaining ring Clutch Torque Values...
Page 125: ...111 Cool Cycle RD II SR with TherMax Heating...
Page 126: ...112 Condenser Cycle RD II SR with TherMax Heating...
Page 127: ...113 Heat and Defrost Cycle RD II SR with TherMax Heating...
Page 129: ...115...
Page 130: ...116...
Page 131: ...117...
Page 132: ...118...
Page 133: ...119...
Page 134: ...120...
Page 135: ...121...
Page 136: ...122...