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III-68
Inspection and Maintenance-
without gauges
• Discussion of Inspection & Maintenance Survey Results
• Visual Inspection - System Off
• Electrical System Inspection
• Performance Inspection - Engine Running
• Heater System Inspection
• Preventive Maintenance Worksheet
• Chapter Review
Discussion of Inspection & Maintenance Survey Results
There are three reasons for regular inspection and maintenance procedures:
1.
They save money in the long run by reducing down time and often
prevent more costly repairs.
2.
They help to insure driver comfort and safety.
3.
They add to your store of knowledge about these systems and main-
tain your level of efficiency.
About half of all heavy duty vehicles have air conditioners. Surveys of AC system
owners find that over 30% of the systems are serviced every six months or less, and
another 62% are serviced at least once a year.
The survey also covered how often the different components required maintenance.
Figure 7.1 below shows survey finding percentages. Failure of any of the AC compo-
nents listed in the survey could cause a system to malfunction or stop cooling.
INSPECTION & MAINTENANCE SURVEY
Note:
The above survey results may not apply to your situation. Actual
operating conditions for the vehicles you service will determine
or influence maintenance frequency and requirements.
The following inspection procedures should take about 15 to 20 minutes, longer if
corrective steps, part replacement or adding refrigerant is necessary. There is a “Pre-
ventive Maintenance Worksheet” you may use at the end of this chapter, Figure 7-9
Click on any of these sub-
ject headings to go directly
to the page
Figure 7-1
This chart shows mainte-
nance frequency, lists key
parts and how often they
require maintenance.
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...