Structural Maintenance
144
Fanshaft Assembly
The unit is equipped with a one-piece fanshaft
assembly that contains tapered roller bearings in a
sealed oil reservoir. This assembly does not
require any maintenance. There is a level plug and
a fill plug, but they are not normally utilized
except after removal and repair of the fanshaft
assembly. The condenser end oil seal and the
evaporator end oil seal should be checked during
the pre-trip inspection for oil leakage. If there is
any sign of leakage, the fanshaft assembly should
be removed and repaired.
NOTE: The fanshaft assembly requires a special
lubricant, TK P/N 203-278.
Disassembly
1. Remove the fanshaft assembly from the unit.
Remove both oil plugs and drain the oil from
the housing.
Figure 67: Removing Bearing Retainer Bolts
2. After draining the oil from the housing,
remove the four retaining bolts from the
bearing retainer cap.
3. To remove the shaft from the assembly, tap the
opposite end of the shaft with a soft hammer.
After the shaft has been removed, clean all
parts in clean solvent.
Figure 68: Removing Shaft
4. Using a punch, remove the oil seal from the
evaporator end of the assembly. With the seal
removed, clean the housing in solvent.
Figure 69: Removing Oil Seal
5. Check the condition of the vent. If it is loose
or damaged, it must be repaired or replaced.
6. After all the parts are cleaned, inspect the
bearings and bearing races for wear or
damage.
7. To replace the bearings, first remove the roll
pin that is in the center of the shaft.
Summary of Contents for 914970
Page 3: ...3...
Page 10: ...Table of Contents 10...
Page 40: ...Operating Instructions 40...
Page 82: ...Electronic Controls 82...
Page 92: ...Electrical Maintenance 92...
Page 124: ...Refrigeration Maintenance 124...
Page 140: ...Hilliard Clutch Maintenance 140...
Page 160: ...Refrigeration Diagrams 160...
Page 163: ...Index 163 W wiring 85 wiring diagrams 165...
Page 164: ...Index 164...
Page 166: ...Wiring and Schematic Diagrams Index 166...
Page 167: ...167 Cab Control RD Wiring Diagram...
Page 168: ...168 RD w o Thermostat Cab Control Schematic...
Page 169: ...169 RD Cab Box Wiring Diagram...
Page 170: ...170 RD Cab Control w Thermostat Schematic Diagram...
Page 171: ...171 RD 50 STD 3 Phase Wiring Diagram Page 1 of 2...
Page 172: ...172 RD 50 STD 3 Phase Wiring Diagram Page 2 of 2...
Page 173: ...173 RD 50 STD 3 Phase Schematic Diagram Page 1 of 2...
Page 174: ...174 RD 50 STD 3 Phase Schematic Diagram Page 2 of 2...
Page 175: ...175 RD 30 STD Wiring Diagram Page 1 of 2...
Page 176: ...176 RD 30 STD Wiring Diagram Page 2 of 2...
Page 177: ...177 RD 30 STD Schematic Diagram Page 1 of 2...
Page 178: ...178 RD 30 STD Schematic Diagram Page 2 of 2...
Page 179: ...179 RD 30 C S Wiring Diagram Page 1 of 2...
Page 180: ...180 RD 30 C S Wiring Diagram Page 2 of 2...
Page 181: ...181 RD w CYCLE SENTRY Schematic Diagram Page 1 of 2...
Page 182: ...182 RD w CYCLE SENTRY Schematic Diagram Page 2 of 2...
Page 183: ...183 RD 50 C S 3 Phase Wiring Diagram Page 1 of 2...
Page 184: ...184 RD 50 C S 3 Phase Wiring Diagram Page 2 of 2...
Page 185: ...185 RD w CYCLE SENTRY Schematic Diagram Page 1 of 2...
Page 186: ...186 RD w CYCLE SENTRY Schematic Diagram Page 2 of 2...