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III-91
After finding a leak, recover all refrigerant from the system
and repair the leak. Check the compressor and replace any
refrigeration oil lost due to leakage. Evacuate and recharge
the system with refrigerant, then check AC operation and
performance.
Air and/or Moisture in the System
Tip:
The sight glass may be clear or show some bubbles. The
air from vents in the cab is only slightly cool. In a cycling
clutch type system with a thermostatic switch, the switch
may not cycle the clutch on and off, so the low pressure
gauge will not fluctuate.
Cause:
Air and/or moisture in the system.
RepairProcedure:
Test for leaks, especially around the compressor shaft seal
area. When the leak is found, recover refrigerant from the
system and repair the leak. Replace the receiver-drier or
accumulator because the desiccant may be saturated with
moisture (there is no way to tell). Check the compressor
and replace any refrigeration oil lost due to leakage. Evacu-
ate and recharge the system with refrigerant, then check AC
operation and performance.
Troubleshooting & Service Procedures
Figure 8-7
Gauge reading, air and/or
moisture in the system.
Summary of Contents for TL150
Page 1: ...TL150 Track Loader BOOK No CT7E901 WORKSHOP MANUAL Serial No 21500004...
Page 4: ...0 4...
Page 5: ...I 1 I GENERAL...
Page 18: ...I 14 GENERAL...
Page 19: ...II 1 II SPECIFICATIONS...
Page 44: ...III 1 III MACHINE CONFIGURATION...
Page 94: ...III 51 MACHINE CONFIGURATION ELECTRICAL SYSTEM ELECTRICAL SYSTEM ELECTRICAL WIRING DIAGRAM...
Page 122: ...III 79...
Page 146: ...MACHINE CONFIGURATION III 103...
Page 147: ...IV 1 IV HYDRAULIC UNITS...
Page 152: ...IV 6 HYDRAULIC UNITS HST PUMP 1 Plug 2 Plug 3 Plug 4 Screw 5 Seal Nut 6 Plug Pump Assembly 4 4...
Page 189: ...IV 43 HYDRAULIC UNITS GEAR PUMP INSPECTION AND ADJUSTMENT IV 36 38 TROUBLESHOOTING IV 39...
Page 230: ...IV 84 HYDRAULIC UNITS PILOT VALVE INSPECTION AND ADJUSTMENT IV 79 TROUBLESHOOTING IV 80...
Page 261: ...IV 115 HYDRAULIC UNITS TRAVEL MOTOR DISASSEMBLY AND ASSEMBLY Special tools...
Page 263: ...IV 117 HYDRAULIC UNITS TRAVEL MOTOR...
Page 282: ...IV 136 HYDRAULIC UNITS TRAVEL MOTOR...
Page 283: ...V 1 V TROUBLESHOOTING...