Chap 11 Flashcards
What is the purpose of aircraft lubrication?
The lubrication of an aircraft is essential to reduce friction, wear, and the risk of component failure. It must be carried out regularly and according to prescribed schedules.
How can lubricating oils be identified?
The colour of lubricating oil does not indicate its grade or viscosity. Oils should be clear and bright when in good condition and taken from clean, clearly marked containers.
What are the basic types of lubricants used in aircraft?
The basic types of lubricants are oil, grease, and pre-packing.
How is lubricating oil typically applied?
Lubricating oil is commonly applied to lubricating points using an oil can, with some points having oilways to direct oil flow.
What is the method for applying grease in aircraft lubrication?
Grease is usually applied with a hand-operated grease gun, using special nipples fitted to grease ways for pressurized application.
What is pre-packing in aircraft lubrication?
Pre-packing involves lubricating and sealing bearings during manufacture, providing sufficient lubricant for their entire working life without further servicing.
Why might grease be used instead of oil as a lubricant?
Grease may be used for its high adhesive qualities, making it more effective in situations where preventing leakage is difficult.
What is a characteristic of grease compared to oil?
Grease has a high melting point and the ability to exclude moisture and dirt.
Under what conditions does grease consume at a slower rate than oil?
Under certain conditions grease is consumed at a slower rate than oil.
What are the cleanliness advantages of grease?
Grease is cleaner and less likely to splash.
How does the system complexity of grease compare to oil?
Compared with oil, grease requires a less complicated system, with fewer and cheaper components.
What are the properties of grease regarding anti-seize?
Grease has good anti-seize properties.
What is the stability characteristic of grease?
Grease has good stability (long storage with no deterioration).
What lubrication advantage does a single application of grease provide?
In some circumstances a single application of grease may provide all the lubrication that a bearing may need during its useful life.
What must be done with contaminated oil?
Oil that is known to be contaminated, or suspected to be contaminated, must not be used as a lubricant for aircraft or aero engines.
How can contamination of oils be avoided?
Contamination can be avoided by: a. Segregation of stocks. b. Careful handling c. Clearly marked containers.
What is the purpose of lubricating grease?
The object of a lubricating grease is to provide a protective film between moving surfaces which otherwise rub together.
What happens if grease becomes contaminated?
If a grease becomes contaminated by solvents, water, or gritty solids, it cannot perform the function of lubrication properly.
How can contamination of grease be detected?
Contamination is not easy to detect because the only means of testing, at the workface, may be feel or sight.
What precautions should be taken to reduce grease contamination?
Contamination can be avoided by using only clean appliances and by keeping the main grease containers sealed except when removing grease.
Identify
a).Grease gun
b). Basic oil can
c).Risbridger
d). Can fluid Mk2
A).Grease Gun
Identify
a).Can fluid Mk2
b). Basic oil can
c).Grease gun
d).Risbridger
b).Basic Oil can
Identify
a).Basic Oil can
b).Can fluid Mk2
c).Risbridger
d).Grease gun
c).Risbridger
Identify
a). Risbridger
b).Basic Oil can
c).Grease gun
d).Can fluid Mk2
d).Can fluid Mk2
What types of equipment are used to replenish aircraft components?
Various types of equipment and tools are used, differing by speed of delivery and type of lubricant.
KLP 13.28.01
What is a Grease Gun?
A Grease Gun is a tool marked with its contents, used to apply grease or oil. It consists of a light alloy head, air release valve, grease discharge tube, and a container.
Refer to Fig 28 for details.
What are the key components of a Grease Gun?
Key components include: air release valve, grease container, high pressure piston, and operating lever.
What are the steps to use a Grease Gun for lubrication tasks?
- Identify the lubricant type. 2. Verify the correct grease is in the gun. 3. Choose and attach the correct extension and coupling. 4. Prime the extension. 5. Clean and connect to lubricating nipples. 6. Inject lubricant. 7. Clean surplus lubricant.
How do you fill a Grease Gun?
- Unscrew the air release valve. 2. Release the bayonet catch and withdraw the chain and plunger. 3. Fill the container with grease. 4. Reassemble and prime the gun. 5. Tighten the air release valve.
KLP 13.28.02
What are the components of an Oil Can?
An Oil Can typically consists of an oil reservoir, a single acting pump, and an application spout.
Refer to Fig 29 for details.
What types of equipment are used to replenish aircraft components?
Various types of equipment and tools are used, differing by speed of delivery and type of lubricant.
KLP 13.28.01
What is a Grease Gun?
A Grease Gun is a tool marked with its contents, used to apply grease or oil. It consists of a light alloy head, air release valve, grease discharge tube, and a container.
Refer to Fig 28 for details.
What are the key components of a Grease Gun?
Key components include: air release valve, grease container, high pressure piston, and operating lever.
What are the steps to use a Grease Gun for lubrication tasks?
- Identify the lubricant type. 2. Verify the correct grease is in the gun. 3. Choose and attach the correct extension and coupling. 4. Prime the extension. 5. Clean and connect to lubricating nipples. 6. Inject lubricant. 7. Clean surplus lubricant.
How do you fill a Grease Gun?
- Unscrew the air release valve. 2. Release the bayonet catch and withdraw the chain and plunger. 3. Fill the container with grease. 4. Reassemble and prime the gun. 5. Tighten the air release valve.
KLP 13.28.02
What are the components of an Oil Can?
An Oil Can typically consists of an oil reservoir, a single acting pump, and an application spout.
Refer to Fig 29 for details.
What are Risbridger fluid replenishment guns used for?
They are used for dispensing engine oils, hydraulic fluids, windscreen washes/de-icing fluids, and other fluids directly from standard size containers during first line servicing of aircraft and other equipment.
What is the basic structure of a Risbridger fluid replenishment gun?
The basic gun consists of a hand-operated, piston action pump and includes a central three-way valve body, a pump cylinder, an internal piston rod assembly, a can nut assembly with attached stack pipe, a spiked opener, a stirrup handle, a stack pipe protective cover, and identification labels.
What is the purpose of the spiked opener in the Risbridger gun?
The spiked opener is used to pierce the seals of new fluid container cans.
What types of fluid containers can the Risbridger gun screw onto?
The gun can screw directly onto either a one gallon (imperial) or a five-litre fluid container.
What should you check before using the gun?
Ensure that the gun is of the correct type, that the oil or fluid identification labels are firmly secured to the handle and stack pipe cover tube with identical specifications, that the gun is clean, that covers are fitted and secure on the spiked opener and stack pipe, and that the locking pin is fitted in the cylinder to prevent movement of the piston rod.
What is Can Fluid MK2 used for?
The pressurised fluid replenishing can, Mk 2, is used for the replenishment of aircraft hydraulic and de-icing systems, and engine oil reservoirs.
How is the Can Fluid MK2 designed for use?
The equipment may be mounted on a trolley, transported and operated by one person, and is capable of dispensing small quantities of fluid.
What components does the Can Fluid MK2 consist of?
The can consists of a container, a hand pump mounted in a frame, a delivery gun, filter, and hoses.
What should you check before using the gun?
Ensure that the gun is of the correct type, that the oil or fluid identification labels are firmly secured to the handle and stack pipe cover tube with identical specifications, that the gun is clean, that covers are fitted and secure on the spiked opener and stack pipe, and that the locking pin is fitted in the cylinder to prevent movement of the piston rod.
What is Can Fluid MK2 used for?
The pressurised fluid replenishing can, Mk 2, is used for the replenishment of aircraft hydraulic and de-icing systems, and engine oil reservoirs.
How is the Can Fluid MK2 designed for use?
The equipment may be mounted on a trolley, transported and operated by one person, and is capable of dispensing small quantities of fluid.
What components does the Can Fluid MK2 consist of?
The can consists of a container, a hand pump mounted in a frame, a delivery gun, filter, and hoses.
