Structural Maintenance
142
Jackshaft Assembly
The RD-II MAX 30 does not have electric
standby capability, therefore, the electric motor is
replaced by a jackshaft. The jackshaft assembly
oil level plug should be removed, and the oil level
checked every 1000 operating hours. Check the
jackshaft during the pre-trip inspection for oil
leakage. If there is any sign of leakage, remove
the jackshaft assembly.
Model 30 truck units are equipped with jackshafts
that have improved venting. This improvement
was made by using a new air vent (P/N 55-6417),
adding an oil sling retainer (P/N 77-2434), and
using fanshaft oil (P/N 203-278). The new air
vent, oil sling retainer, and fanshaft oil reduce the
build-up of pressure inside the jackshaft.
Disassembly
1. Remove jackshaft assembly from the unit and
remove the pulleys.
2. Remove the level and fill plugs and drain oil
reservoir.
3. Remove bearing retainer cap from fill plug
end of the jackshaft assembly.
NOTE: There are shims between the bearing
retainer cap and the housing. These should be
saved for possible reuse during reassembly.
4. Remove the shaft and bearings.
NOTE: The oil sling retainer is pulled out by the
bearing assembly on shaft.
5. Remove the retainer cap from level plug end
of assembly.
6. Use a punch and hammer to remove the seals
and bearing cups from bearing retainer caps.
7. Use a bearing splitter or similar tool to remove
the bearing cones from the shaft.
8. Clean all parts in clean solvent and then
examine the bearing cups and cones for
damage.
1.
Move Angle Down
2.
Move Angle Up
Figure 64: Defrost Damper Adjustment
1
2
AEA924
Incorrect
Incorrect
Correct
1.
Fill Plug and Vent
2.
Oil Level Plug
Figure 65: Jackshaft Assembly
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...