Scheduled Preventive Maintenance Programs

1
Scheduled Preventive Maintenance Programs

• ASM 902A

2
Maintenance

• Scheduled Maintenance
• A planned servicing of equipment and vehicles to
  maximize efficiency.
• Unscheduled Maintenance
• Work resulting from breakdowns such as component
  failures and surprise failures.

3
Scheduled Maintenance

• Preventive Maintenance Inspection (PMI)
• Scheduled Component Repair
• Operator Inspection
• Breakdown
• 60 PMI
• 30 Operator Inspection
• 10 Component Repair

4
Unscheduled Maintenance

• Most Costly
• Loss of work time
• Parts
• Labor
• Can not be eliminated

5
Preventive Maintenance Inspection

• Systematic approach to inspecting a vehicle or
  piece of equipment at planned intervals.
• Intervals of
• Time
• Mileage
• Hours
• Gallons of fuel

6
Preventive Maintenance Inspection

• First, manufacturers recommended intervals
  should be considered
• Second, operating environment should be studied.
• Continuous service
• Dirty operating conditions
• Extensive temperature ranges

7
Preventive Maintenance Inspection

• Third, past experience in your service and
  operating program
• Review input and discard extremes

8
Preventive Maintenance Inspection

• Examples of potential premature failure
• Grease fittings that wont take grease
• Lines that are chaffed or worn
• Exposed electric lines
• Leaking fluids
• Broken or worn parts
• Discolored parts
• Also test components for unseen signs

9
Preventive Maintenance Objective

• Maximum Availability
• Maximize equipment availability
• Minimize downtime
• Use technicians efficiently
• Minimize Cost
• Improved equipment reliability
• Breakdown prevention
• Reduce interrupted or postponed assignments

10
Scope of Preventive Maintenance

• Servicing
• PM-A
• PM-B
• PM-C
• PM-D
• Inspection
• Detection
• Correction

11
Servicing

• Based on routine
• Time
• Mileage
• Fuel usage
• Hours
• Four General Categories based on mileage or time
  between servicing and the nature of the
  maintenance.

12
PM-A

• Frequent, Minor service work
• Lube jobs
• Tire inflation
• Vehicle inspections
• Short service intervals

13
PM-B

• Less frequent, more complex
• Oil and Filter changes
• Engine adjustments
• Longer service intervals

14
PM-C

• Minor and Major Testing
• Replace Brakes
• Fuel filters
• Emission testing
• Drive line adjustments

15
PM-D

• Major Planned vehicle component overhauls
• Water pump
• Starter
• Alternator
• Rebuilding or replacing engines
• Least frequent

16
Inspection

• Preformed routinely by operators and mechanic
• Pre-printed Check Sheet
• Daily review of operators reports
• Visual inspection of
• Tires, steering, suspension, drive systems
• Coolant, exhaust, fuel systems
• Lights and other electrical system parts
• Leaks, both liquid and air

17
Inspection

• Visual Inspection (cont.)
• Body damage, accumulated and new
• Brakes
• Instruments and gauges
• Safety devices
• Emergency equipment
• Wheels, rims
• Test Drives

18
Detection

• All defects should be noted
• Detect imminent failures
• Multiple clutch adjustments

19
Correction

• Repairs should be made as soon as possible to
  prevent excessive damage.
• Schedule repairs when possible
• To allow for substitutions to be made
• To allow for parts to be ordered
• To allow proper time to complete repairs

20
Planning a PM Program

• Involve
• Operator
• Crew Leader
• Mechanic
• Shop Supervisor
• Equipment and Maintenance Managers
• Executive Management

21
PMI Program Extremes

• Follow, to the letter, manufacturers
  recommendations and replacing key parts and
  components on a predetermined schedule.
• Performing routine service and replacing critical
  parts only when inspection shows that failure is
  imminent.

22
Cost of Options
23
PM Checklists

• PMI tasks which are to be performed
• Frequency of PMI tasks
• Personnel performing PMI
• Lubricants and materials to be used

24
Factors to Consider

• Climate
• Terrain
• Equipment Use
• Facilities
• Support Personnel
• Past Experience
• Vendor Availability

25
(No Transcript)