focus on training section: unit 3 diesel fuel injection training … · 2015-10-29 · section...
TRANSCRIPT
SECTION OVERVIEW
Page 1
Rev. 9/15
Focus on Training Section: Unit 3
Diesel Fuel Injection Training Program
Model Type: All Pump Types
Section: Unit 3 Fuel and Filtration
1. Title Page Unit learning objectives Understand the properties of common types of
fuels Understand the principals of filtration Be able to make recommendations regarding
fuel storage and filtration Notes:
2. Typical Fuel System Be able to note the components of a typical fuel system Fuel Tank Pre-Filter or Primary Filter Lift Pump Final Filter or Secondary Filter Fuel Injection Pump Notes:
3. Fuel Tank Understand the importance of fuel quality Be able to explain the purpose of the tank filter Note filler cap problems Notes:
SECTION OVERVIEW
Page 2
Rev. 9/15
Focus on Training Section: Unit 3
Diesel Fuel Injection Training Program
Model Type: All Pump Types
Section: Unit 3 Fuel and Filtration
4. Water in Tank Contamina-tion
Algae formation at interface between water and fuel Notes:
5. Fuels Know the fuels to be covered and be able to note usage
6. Typical Fuel Properties Fuel properties Notes:
SECTION OVERVIEW
Page 3
Rev. 9/15
Focus on Training Section: Unit 3
Diesel Fuel Injection Training Program
Model Type: All Pump Types
Section: Unit 3 Fuel and Filtration
7. Heat Content A measure of a fuel’s heating ability expressed in BTU’s or Calories
BTU: A British Thermal Unit is the amount of heat required to raise the temperature of one pound of water by 1 degree F
Calorie: The amount of heat required to raise the temperature of one gram of water by one degree C. Expressed as kilogram/calories. 3.968 kg/c = 1 BTU
Notes:
8. Heat Content Heat content of various fuels Notes:
9. Flash Point The temperature at which a fuel’s vapors will ignite (flash) when exposed to a flame Notes:
SECTION OVERVIEW
Page 4
Rev. 9/15
Focus on Training Section: Unit 3
Diesel Fuel Injection Training Program
Model Type: All Pump Types
Section: Unit 3 Fuel and Filtration
10. Flash Point Flash points of the various types of fuel Notes:
11. Spontaneous Ignition Tem-perature
The temperature at which a fuel will ignite and burn in an engine under conditions conductive to ignition without the presence of a flame or spark Notes:
12. Spontaneous Ignition Temperature
Spontaneous ignition points of the various fuels Notes:
SECTION OVERVIEW
Page 5
Rev. 9/15
Focus on Training Section: Unit 3
Diesel Fuel Injection Training Program
Model Type: All Pump Types
Section: Unit 3 Fuel and Filtration
13. Fuel Viscosity A measure of a fluid’s resistance to flow at a given temperature. Describe the effect on lubrication, leakage and flow Notes:
14. Kerosene Be able to describe temperature effect and note steepness of curve. Note actual viscosity at operating temperature Notes:
15. Diesel Fuel #2 Be able to describe temperature effect and note actual viscosity at operating temperature Notes:
SECTION OVERVIEW
Page 6
Rev. 9/15
Focus on Training Section: Unit 3
Diesel Fuel Injection Training Program
Model Type: All Pump Types
Section: Unit 3 Fuel and Filtration
16. Cloud Point The temperature level of a paraffin based fuel at which the wax crystallizes and precipitates out of the fuel Notes:
17. Cloud Point Cloud point of the various fuels Note that the cloud point is a function of paraffin
content Gasoline and JP4 are napthene based fuels Notes:
18. Pour Point The temperature at which a liquid thickens to the point where it will not readily flow Notes:
SECTION OVERVIEW
Page 7
Rev. 9/15
Focus on Training Section: Unit 3
Diesel Fuel Injection Training Program
Model Type: All Pump Types
Section: Unit 3 Fuel and Filtration
19. Pour Point Pour point of the various fuels Note that the pour point is generally 10 degrees
below its cloud point Notes:
20. Fuel Weight Measured in pounds per gallon or in specific gravity (density) of the fluid
Specific Gravity is a measure of a liquid’s weight in comparison to water, which is given a value of 1.0
Note the change in weight and heat content at different temperatures. As the fuel warms up the volume increases, thus lowering the Specific Gravity (density)
Notes:
21. Octane / Cetane Octane: A method of rating a gasoline’s resistance to ignition. The higher the Octane rating, the lower the tendency to detonate (knock). Converse relationship to a Cetane rating
Cetane: A method of rating a diesel fuel’s susceptibility to ignition. The lower the Cetane rating, the more difficult it is to ignite. Converse relationship to an Octane rating
Notes:
SECTION OVERVIEW
Page 8
Rev. 9/15
Focus on Training Section: Unit 3
Diesel Fuel Injection Training Program
Model Type: All Pump Types
Section: Unit 3 Fuel and Filtration
22. Octane / Cetane Octane / Cetane ratings of the various fuels Notes:
23. Pre-Filter / Water Separation
Understand the reason for the location and the normal micron size Notes:
24. Water in Fuel Know the causes and sources of water contamination
SECTION OVERVIEW
Page 9
Rev. 9/15
Focus on Training Section: Unit 3
Diesel Fuel Injection Training Program
Model Type: All Pump Types
Section: Unit 3 Fuel and Filtration
25. Fuel Quality Issues Be able to identify visual differences between clean, water contaminated and oxidized / dirty fuel
Be able to describe the differences between dissolved, emulsified and free water
26. Water Contaminated Pump
Understand the cause and effect of water contamination Notes:
27. Water Damaged Compo-nents
Note water damage in 24 hours Notes:
SECTION OVERVIEW
Page 10
Rev. 9/15
Focus on Training Section: Unit 3
Diesel Fuel Injection Training Program
Model Type: All Pump Types
Section: Unit 3 Fuel and Filtration
28. Water Contaminated Pump
This pump operated for 1500 hours on a durability test with 2% water added to the diesel fuel. Upon initial inspection, there is very little evidence of any water contamination or damage Notes:
29. Regulating Pistons Upon closer inspection we can see the damage that water can cause. The piston on the right operated with #2 diesel fuel, the piston on the left operated with diesel fuel with 2% water added
Note the galling and discoloration on the piston run with water. This type of galling may lead to the piston sticking
Notes:
30. Transfer Pump Blades Transfer pump blades run with 2% water. Scuffing and wear to the ends and sides of the blades is apparent Notes:
SECTION OVERVIEW
Page 11
Rev. 9/15
Focus on Training Section: Unit 3
Diesel Fuel Injection Training Program
Model Type: All Pump Types
Section: Unit 3 Fuel and Filtration
31. Metering Valve Pitting and corrosion cause by the presence of water. This valve may eventually stick in its bore causing stalling Notes:
32. Leaf Springs The leaf spring on the right is in good condition while the one on the left failed due to fretting corrosion Notes:
33. Lift Pump Location Be able to describe the position in the system and explain the benefits of a controlled supply pressure and the effect on the system Notes:
SECTION OVERVIEW
Page 12
Rev. 9/15
Focus on Training Section: Unit 3
Diesel Fuel Injection Training Program
Model Type: All Pump Types
Section: Unit 3 Fuel and Filtration
34. Fuel Heater Location Understand why the heater is positioned immediately prior to the filter Notes:
35. Fuel Heater Location A side load heater is used when a hand primer or an electric boost pump is installed Notes:
36. Waxed Filter Be able to describe the waxing process and the effect of temperature changes Notes:
SECTION OVERVIEW
Page 13
Rev. 9/15
Focus on Training Section: Unit 3
Diesel Fuel Injection Training Program
Model Type: All Pump Types
Section: Unit 3 Fuel and Filtration
37. Fuel Heater Location Understand why the heater is positioned immediately prior to the filter Notes:
38. Fuel Filter Be able to explain the importance of a final filter. Note it’s position in relation to the injection pump Notes:
39. Worn Rotor Note the effects of contaminates on pump components Notes:
SECTION OVERVIEW
Page 14
Rev. 9/15
Focus on Training Section: Unit 3
Diesel Fuel Injection Training Program
Model Type: All Pump Types
Section: Unit 3 Fuel and Filtration
44. Micron Size Be able to describe filter ratings Note that 10 microns used to be the critical size 2 to 5 micron rated filters have become the norm
for today’s injection equipment Notes:
SECTION OVERVIEW
Page 15
Rev. 9/15
Focus on Training Section: Unit 3
Diesel Fuel Injection Training Program
Model Type: All Pump Types
Section: Unit 3 Fuel and Filtration
46. Basic Diesel Fuel Filtration What you and your customers need to know about fuels, proper fuel handling and filtration for protection of their fuel injection equipment Notes:
47. Terminology Understand Primary Filters Secondary Filters Notes:
48. Terminology Understand Water Separators Coalescers Sediment Bowl Notes:
SECTION OVERVIEW
Page 16
Rev. 9/15
Focus on Training Section: Unit 3
Diesel Fuel Injection Training Program
Model Type: All Pump Types
Section: Unit 3 Fuel and Filtration
49. Filter Sizing and Capacity Understand Fuel Flow vs. Fuel Consumption Porting and line size determines fuel flow
capacity Notes:
50. Filter Sizing and Capacity Understand Increases in filter media quantity increases filter
life Use of a pre-filter increases final filter life What are the effects on pump/engine
performance when run with a choked filter Notes:
51. Recommendations Recommendations to be passed on to the equipment owner/operator Notes:
SECTION OVERVIEW
Page 17
Rev. 9/15
Focus on Training Section: Unit 3
Diesel Fuel Injection Training Program
Model Type: All Pump Types
Section: Unit 3 Fuel and Filtration
52. Recommendations Recommendations to be passed on to the equipment owner/operator Notes:
53. Recommendations in Fuel Handling and Storage
Recommendations to be passed on to the equipment owner/operator Notes:
54. Chemical Improvement of Fuel Quality
Understand Cetane Waxing/choking Lubricity Fuel Stability Corrosion Protection Recommendations to be passed on to the equipment owner/operator Notes:
SECTION OVERVIEW
Page 18
Rev. 9/15
Focus on Training Section: Unit 3
Diesel Fuel Injection Training Program
Model Type: All Pump Types
Section: Unit 3 Fuel and Filtration
55. Ultra Low Sulfur Diesel Fuel
Introduced to the US market in October, 2007 Sulfur content reduced to 15 PPM max. Notes:
56. Fuel Lubricity Lubricity describes the ability of a fluid to minimize friction between, and damage to, surfaces in relative motion under loaded conditions Notes:
57. Low Lubricity Diesel Fuel
Parts condition is the only true measure of a fuel’s lubricity (Reference S.L. 288) Notes:
SECTION OVERVIEW
Page 19
Rev. 9/15
Focus on Training Section: Unit 3
Diesel Fuel Injection Training Program
Model Type: All Pump Types
Section: Unit 3 Fuel and Filtration
61. Taking Care of Your Customers
Take care of your customers with good sound advice and recommendations Notes: