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III-95
3. If the low side gauge shows a drop again, the valve is
not stuck. Clean the surfaces of the evaporator outlet
and the capillary coil or bulb. Make sure the coil or bulb
is securely fastened to the evaporator outlet and covered
with insulation material. Operate the system and check
performance.
Repair Procedure:
If the test did not result in proper operation of the expansion
valve, the valve is defective and must be replaced. Recover
all refrigerant from the system and replace the expansion
valve and the receiver-drier. Evacuate and recharge the
system with refrigerant, then check AC operation and per-
formance.
System High Pressure Side Restriction
Tip:
Air from vents in the cab is only slightly cool. Look for
sweat or frost on high side hoses and tubing, and frost ap-
pearing right after the point of restriction. The hose or line
may be cool to the touch near the restriction.
Cause:
There could be a kink in a line, or other restriction in the
high side of the system.
Troubleshooting & Service Procedures
Figure 8-11
Gauge reading, system high
pressure side restriction.
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...