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Refrigeration Service Operations
139
Shaft Seal Change Procedure
Thermo King recommends changing the
compressor shaft seal when there is a major
system interruption, such as component
replacement or total loss of refrigerant charge.
When the shaft seal is changed, Thermo King also
recommends changing the oil and oil filter.
The steps for changing the shaft seal are as
follows:
1. Recover refrigerant. Equalize pressure to
slightly positive.
2. Remove compressor.
3. Remove drive pulley and Woodruff key from
the shaft.
4. Clean shaft seal cover of excess dirt.
5. Remove four Torx head screws from shaft seal
cover.
6. Carefully pry the shaft seal cover out of
compressor body using flats at top and bottom
of shaft seal cover.
7. Remove the old hard ring, lip seal, and o-rings
from the seal cover.
8. Loosen the set screws that secure the bellows
to the shaft. These set screws typically use an
1/8 inch Allen wrench which is provided with
the new seal.
9. Remove the old bellows from the shaft. Use a
small prybar or screwdriver on each side of
the bellows, but do not scratch the shaft when
removing the bellows. Be careful not to lose
the spacer that is on the shaft.
10. Ensure the spacer is properly located on the
shaft flat.
11. Back out the set screws from the new bellows
and apply a small amount of blue Loctite 242
(P/N 203-400) to the set screw threads.
12. Apply clean compressor oil to the o-ring
inside the bellows and place the bellows on
the shaft. Leave the orange protective cap on
the bellows.
CAUTION: Keep the orange protective
cap in position until final assembly.
1.
Clamp Ring
2.
Orange Protective Cap
Figure 163: Cross Section of
Set Screw Type Bellows
1.
Set Screw
2.
Seal Faces
3.
Hard Ring
4.
O-ring
5.
Bellows
Figure 164: Set Screw Type Bellows Seal
2
1
AGA576
1
2
5
4
3
AGA577
Содержание SPECTRUM TS 30 SR NAD
Страница 4: ...4 ...
Страница 10: ...Table of Contents 10 ...
Страница 20: ...Safety Precautions 20 ...
Страница 51: ...Unit Description 51 Figure 19 Front View Figure 20 Back View AJA1350 AJA1500 ...
Страница 52: ...Unit Description 52 1 On Off Switch Figure 21 Side View 1 ...
Страница 60: ...Unit Description 60 ...
Страница 80: ...SPECTRUM TS Operation 80 ...
Страница 90: ...Electrical Maintenance 90 ...
Страница 100: ...Engine Maintenance 100 Figure 130 Early TK 3 95 Fuel and Oil System Components ...
Страница 102: ...Engine Maintenance 102 Figure 131 Late TK 3 95 Fuel and Oil System Components ...
Страница 104: ...Engine Maintenance 104 Figure 132 TK376 Fuel and Oil System Components ...
Страница 136: ...Refrigeration Maintenance 136 ...
Страница 156: ...Hilliard Clutch Maintenance 156 ...
Страница 158: ...Structural Maintenance 158 ...
Страница 168: ...Remote Evaporator Specifications 168 ...
Страница 170: ...Remote Evaporator Maintenance Inspection Schedule 170 ...
Страница 176: ...Remote Evaporator Electrical Maintenance 176 ...
Страница 180: ...Remote Evaporator Refrigeration Service Operations 180 ...
Страница 182: ...Remote Evaporator Structural Maintenance 182 ...
Страница 184: ...Remote Evaporator System Diagnosis 184 ...
Страница 188: ...Wiring and Schematic Diagrams Index 188 ...
Страница 189: ...189 Wiring Diagram Page 1 of 4 ...
Страница 190: ...190 Wiring Diagram Page 2 of 4 ...
Страница 191: ...191 Wiring Diagram Page 3 of 4 ...
Страница 192: ...192 Wiring Diagram Page 4 of 4 ...
Страница 193: ...193 Schematic Diagram Page 1 of 3 ...
Страница 194: ...194 Schematic Diagram Page 2 of 3 ...
Страница 195: ...195 Schematic Diagram Page 3 of 3 ...
Страница 196: ...196 ...