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CAT PM Maintenance Guide

A-B-C-D Preventive Maintenance System for Expert Technicians

Expert Technician Level
Comprehensive procedures & specifications

A-B-C-D Maintenance Classification

Simplified hour-based preventive maintenance system designed for maximum efficiency and equipment longevity. Each level builds upon the previous, ensuring comprehensive coverage.

A
Level A - Basic Service
Every 250 Engine Hours
2-4
Hours Labor
15
Core Tasks
$150
Avg Parts
Essential fluid changes, filter replacements, and basic inspections. Includes engine oil, fuel filters, and lubrication points.
B
Level B - Standard Service
Every 500 Engine Hours
4-6
Hours Labor
25
Core Tasks
$400
Avg Parts
Comprehensive service including hydraulic filters, transmission service, coolant system, and detailed inspections. Critical fluid sampling.
C
Level C - Major Service
Every 1000 Engine Hours
8-12
Hours Labor
35
Core Tasks
$1200
Avg Parts
Extensive maintenance including air system service, drive train inspection, electrical system checks, and component rebuilds.
D
Level D - Overhaul Service
Every 2000+ Engine Hours
16-40
Hours Labor
50+
Core Tasks
$5000
Avg Parts
Major overhaul procedures including engine rebuild consideration, transmission overhaul, hydraulic system rebuild, and structural inspections.

Select Equipment Type

Choose your CAT equipment to access model-specific maintenance procedures and parts specifications

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Excavators
320, 330, 336, 349, 374, 390 Series
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Wheel Loaders
950, 962, 966, 972, 980, 990 Series
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Dozers
D6, D7, D8, D9, D10, D11 Series
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Articulated Trucks
725, 730, 735, 740, 745 Series
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Motor Graders
120, 140, 160, 24M Series
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Specialized Equipment
Compactors, Pavers, Telehandlers