Maintenance Management Flashcards
(101 cards)
Questions
Answers
1.1.1 What are the various actions associated with vehicle maintenance. (p. 8)
- inspection
- lubrication
- adjustment
- cleaning
- testing
- replacing components that have failed or are on the verge of failure
1.1.2 Define preventive maintenance (p. 8)
- Care and servicing by personnel for the purpose of maintaining equipment and facilities in satisfactory operating condition by providing for systematic inspection, detection, and correction of incipient failures either before they occur or before they develop into major defects.
- Maintenance, including tests, measurements, adjustments, and parts replacement, performed specifically to prevent faults from occurring
1.1.3 Define demand or breakdown maintenance. (p. 8)
Maintenance that is unscheduled
1.1.4 Define motor vehicle maintenance, (p. 9)
On a scheduled, periodic basis, which is called preventive maintenance (PM),
or
On an unscheduled basis, which is referred to as demand, or breakdown maintenance
inspection, lubrication, adjustment, cleaning, testing, and replacing components that have failed or are on the verge of failure
1.1.5 What impact does lack of maintenance have on the vehicles? (p. 9)
- The life-span of the vehicles will be reduced, requiring their replacement or that of their more costly systems/ components at a date earlier than should be expected
1.1.6 What impact does lack of maintenance have on the drivers? (p. 9)
1 Employees using the vehicles will be greatly inconvenienced,
2 Their productivity will drop
3. A work backlog will invariably develop and the vehicle maintenance personnel may be blamed
1.1.7 What impact does lack of maintenance have on the vehicle maintenance department? (p. 9)
The workload of the maintenance department will be characterized by extreme peaks and valleys, requiring overtime or temporary help to reduce the peaks.
During the valley periods, portions of the maintenance workforce will be idle.
1.1.8 What impact does lack of maintenance have on budget forecasting? (p. 9)
Fleet managers will be unable to forecast maintenance budget, not only from a personnel aspect, but from an outlay of cash of parts and supplies
1.1.9 What impact does a thorough maintenance program have on vehicle remarketing?
Those with accurate, proven PM records may sell for more than those without
1.2.1 What are the two major components of a PM program?(p. 10)
- checklist of maintenance actions that need to be performed periodically
- interval or frequency with which these actions are performed
1.2.2 List six principal sources for determining maintenance actions. (p. 13)
- Manufacturer’s list of recommended maintenance actions.
- In operator’s manual or in the service manual.- the frequency with which they should be performed are given for “normal” service.
- Our past experiences comprise the second source for developing our checklist,
- We may very well wish to modify the manufacturer’s recommended actions by adding to the list, or changing it in some way. For example, vehicles used for inter state highway, long distance driving will require a different set of criticism than vehicles used only in local areas.
- The operating environment of our vehicles is also essential.
- If our equipment is to be operated in a very dusty climate, we may wish to remove and replace air filters and change oil more frequently.
- Records of unscheduled maintenance should be examined.
- Hopefully, we’ve been maintaining records to which we can refer that an tell us which operating systems have been giving us trouble so that these systems can be included in the checklist. Our records should consist of two parts:
a. Individual Vehicle Records
b. Vehicle Class Records
- Hopefully, we’ve been maintaining records to which we can refer that an tell us which operating systems have been giving us trouble so that these systems can be included in the checklist. Our records should consist of two parts:
- There must also be a way to distinguish an unscheduled repair from an emergency repair.
- One easy way is to make all emergency repair entries in red ink. This is important because the listing of emergency repairs to trouble-prone systems constitutes the fifth source of information for developing our checklist.
6 Even a fleet comprised mostly of light duty vehicles may have a significant number of vehicles where mileage standards are not reflective of use.
- For instance, police vehicles, taxis, facility maintenance vehicles and shuttle buses are examples of light duty vehicles that do not have original equipment manufacturer’s hour meters but accumulate a high number of idle hours.
1.2.3 What are two primary factors for determining service intervals? (p. 12)
Mileage and Idle or not
1.2.4 When would fuel consumption be the preferred factor for determining PM interval? (p. 14)
Vehicles that incur significant or regular idle time, but are not equipped with hour meters (most light duty vehicles)
1.2.5 Why would fuel consumption be important to PM scheduling? (p.14)
Fuel transactions for all fleet vehicles are metered by the dispenser and should be uploaded to fleet management software that tracks cumulative fuel consumption.
The software can trigger scheduling a PM at a preset number of gallons or liters consumed
1.2.6 How does a good PM program impact warranty recovery? (p. 12)
- It is important to establish a service pattern that meets all of the manufacturers’ requirements to protect the vehicle’s warranty and incorporate checks for potential problem areas in the fleet.
- Failure to follow manufacturer guidelines may result in loss of warranty and/or loss of goodwill warranty policy adjustments beyond standard warranty parameters
1.2.7 What is the objective of predictive maintenance? (p. 15)
Maximize vehicle availability and minimize total fleet maintenance cost
1.2.8 What financial impact does maintaining to severe service levels vs. normal levels have p 14
Severe Levels cost more
1.2.9 What regulatory agency requires an annual inspection for commercial vehicles?
Federal Motor Carrier Regulations (FMCSR)
1.3.1 Identify three benefits of properly maintained tires. (p. 77)
• Improve fuel economy;
• Extend tire life;
• Provide better vehicle handling;
• Help to prevent avoidable breakdowns and collisions; and
• Reduce exhaust emissions that contribute to environmental, health and climate change problems.
1.3.2 What tire condition increases rolling resistance, reduces tread life, and increases fuel consumption? (p. 78)
Underinflation
1.3.3 What tire condition results in reduced grip on the road, harsh ride, handling issues and increased wear on the tires? (p. 79)
Overinflation
1.3.4 Where on a vehicle is the tire information label usually located? (p. 80)
tire information label, which is usually attached to the edge of the driver’s door, the door post, the glove box or the fuel door
1.3.5 Where are the tread wear indicators located? (p. 81)
(1.5 mm or 2/32 of an inch in depth)