III-87
Before adding refrigerant to the system you should study the sight glass while the
engine is running and the air conditioner is on. Even if you found a leak during the
system inspection and corrected it, you have no way of knowing how much refriger-
ant has leaked. You will not be able to tell how much refrigerant is in there, but you
can see if bubbles are present.
Then check the gauges for unusually high or low readings, or a lack of pressure.
Following this procedure, and using your knowledge and experience, decide if it
is safe and makes sense to add refrigerant in order to make your full performance
inspection.
You are now ready to add refrigerant to the system. For your safety and to
prevent system damage use the following procedure.
1.
Turn on the engine and set the idle at 1200 to 1500 RPM and then turn
on the air conditioner.
Do not open the high pressure hand valve on the manifold
gauge set. The compressor could pump refrigerant into the
container and cause it to BURST. Be sure to keep the refriger-
ant container upright to prevent liquid refrigerant from enter-
ing the compressor.
2.
Open the refrigerant dispensing valve on the container and then the
low pressure hand valve on the manifold. This allows refrigerant to
enter the system as a gas on the low pressure or suction side of the
compressor. The compressor will pull refrigerant into the system.
Troubleshooting & Service Procedures
Figure 8-4
In this illustration we have
noted how refrigerant is
added to the air conditioner.
CAUTION
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...