MAINTENANCE

Exercise 1

Read and translate the text into Estonian

FUEL SYSTEM MAINTENANCE

In a vapour hazard area (this includes areas for refuelling/defuelling):

* ensure adequate ventilation

* display appropriate warning signs in prominent positions

* exclude from the area any potential source of sparks or ignition (engine or electrically powered ground equipment, power tools, electrical vacuum cleaners.)

* do not non-approved battery-operated equipment, matches and cigarette lighters, nylon clothing and zips, nailed or metal studded footwear, etc.

* before refuelling/defuelling, check that the aircraft is parked in an approved fuel area or in the open air.

Exercise 6

Look at the groups of verbs below. Which word has a different meaning?

a flow block run pour

b damage destroy break dismantle

c inspect check review split

d correct repair fix install

e refit remove rebuild reassemble

f overhaul finish close shut down

g link connect strip splice

Now check your answers.

COMPREHENSION

There are two types of mistakes that are made by maintenance personnel:

A They do things they shouldn`t do.

B They fail to do something.

Exercise 9

Here are 15 maintenance errors which could cause equipment failure. Decide whether they are Category A or Category B.

a wrong kind of hydraulic fluid put into brake system.

b insufficient lubrication of motor shaft.

c equipment cover panel not refastened

d 5-amp capacity cable put into 10- amp circuit

e screw hammered into position

f tools left in work area

g connectors not securely done up

h oil-based grease used on rubber components

i maintenance record documents not completed

j spanner used instead of torque wrench

k spare solder left on PCB repair

l reassembly instructions ignored

m live cable cut with insulated side-cutters

n no warning tags on unfinished repair

o bolt refitted without locking washer

Check your answers here.

Exercise 11

Listen to the manager. What is he talking about? (track)

1. a particular maintenance procedure

2. maintenance documentation style

3. reading skills for engineers

Check your answer here.

Exercise 12

What is wrong with the way the notes are written according to the maintenance manager?

1. THE APPLIANCE SHOULD INITIALLY BE ISOLATED FROM THE MAIN SUPPLY OF ELECTRICITY IN ORDER TO OBVIATE THE RISK OF DANGEROUS ELECTRIC SHOCK HAPPENING.

2. DISMOUNT UNIT FROM WALL SO AS TO FACILITATE SERVICING PROCEDURE OF UNIT.

3.YOU SHOULD CAREFULLY REMOVE THE FOUR SCREWS FASTENING THE COVER OF THE UNIT AND LIFT THE COVER TO REVEAL THE APPLIANCE. YOU MUST REMOVE THE FAN.

4. EMPLOYING A BRUSH, BLOWER OR ANY OTHER TYPE OF SUITABLE CLEANING DEVICE OR MATERIAL, ANY ACCUMULATIONS OF DIRT, DUST FLUFF OR FOREIGN OBJECTS SHOULD BE REMOVED, WHILST BEING VERY CAREFUL AT THE SAME TIME TO ENSURE THAT ANY DAMAGE TO INTERNAL CONNECTIONS, SAFETY CUT-OUTS, THERMOSTATS OR OTHER INTERNAL COMPONENTS WITHIN THE HEATING APPLIANCE IS AVOIDED.

5. APPLY A FEW DROPS OF A36 LIGHT MACHINE OIL TO THE BEARINGS AT EACH END OF THE MOTOR, MAKING SURE THAT YOU DON`T CONTAMINATE OTHER AREAS OR COMPONENTS WITH LUBRICANT.

6. THE COVER OF THE APPLIANCE MUST NOW BE REPLACED BACK ON THE BASE AND THEN RESECURED WITH THE FOUR FIXING SCREWS. YOU MAY NOW REMOUNT THE APPLIANCE IN ITS POSITION ON THE WALL.

Check your answer here.