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RT 209 > 12. Equipment Maintenance > Flashcards

12. Equipment Maintenance Flashcards

1
Q

is maintenance performed on equipment that has broken down and is unusable

A

Breakdown Maintenance

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2
Q

it may be either planned or unplanned

A

Breakdown Maintenance

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3
Q

is a maintenance task performed to identify, isolate, and rectify a fault so that the failed equipment, machine, or system can be restored to an operational condition within the tolerances or limits established for an in-service operations

A

Corrective Maintenance

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4
Q

are designed to help determine the condition of in-service equipment in order to estimate when maintenance should be performed

A

Predictive Maintenance techniques

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5
Q

is maintenance that is regularly performed on a piece of equipment to lessen the likehood of it failing

A

Preventive Maintenance

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6
Q

it is performed while the equipment is still working so that it does not break down unexpectedly

A

Preventive Maintenance

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7
Q

Preventive Maintenance

A
  • Time-based preventive maintenance

* Usage-based preventive maintenance

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8
Q

to insure the proper functioning of the processor, a systemic approach for routine start-up, operation, and shut down of the processor is necessary

A

Processor Start-Up, Operation, and Shutdown

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9
Q

Start-Up Procedure

A
  • Racks, crossovers, squeegee, and other parts are in their proper places
  • Developer, fixer, and wash water should be at proper levels
  • Replenishment chemicals should be adequate
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10
Q

Tank Drain Valves (Start-Up Procedure)

A
  • Close the wash tank drain to fill the tank with proper level of water and then open slightly while increasing the flow rate of water
  • Valves of the developer and fixer tanks should be closed tightly
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11
Q

the main electrical power switch should be turned on to energize the electrical switches on the processor control panel

A

Main Power (Start-Up Procedure)

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12
Q

the processor switches located on the control panel are turned on in the following order:

A

main drive, replenisher pumps, and the blower and heater elements in the dryer

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13
Q

processor needs to be on for 15 to 30 minutes before it reaches its proper temperature

A

Developer Temperature (Start-Up Procedure)

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14
Q

the indicator must be checked periodically for accuracy

A

Developer Temperature (Start-Up Procedure)

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15
Q

the best temperature is the lowest that will still adequately dry the films

A

Dryer Temperature (Start-Up Procedure)

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16
Q

indicator must be checked periodically for accuracy

A

Dryer Temperature

Start-Up Procedure

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17
Q

the processor cover panels should be replaced tightly to insure that no light leaks are present

A

Panel Covers

Start-Up Procedure

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18
Q

check the placement and condition of the safelight

A

Panel Covers

Start-Up Procedure

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19
Q

14 x 17 inch films should be run through the processor as clean-up films to remove deposits left on the rollers and to insure that film transportation system is in good condition

A

Clean-Up Films

Start-Up Procedure

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20
Q

films should be observed as they leave the processor to make sure that they exit in a straight line

A

Dryer Drop Inspection

Start-Up Procedure

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21
Q

films should be checked again for artifacts

A

Dryer Drop Inspection

Start-Up Procedure

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22
Q

after all radiographs have exited, all the switches on the processor, and the main power switch should be turned off

A

Main Power (Shutdown Procedure)

23
Q

must be turned off

A

Water Valves (Shutdown Procedure)

24
Q

the top cover must be opened slightly to prevent build-up of chemical fumes, deposits, and allow air to circulate within the processor

A

Panel Cover (Shutdown Procedure)

25
Q

schedule for major cleaning and inspection must be after _____ or at the end of a _____, whichever occur first

A

5000 films,

30-day period

26
Q

sponge, small brush, clean towels, Scotch Brite, and water

A

Cleaning Materials

27
Q

Personnel must be equipped with plastic aprons, rubber gloves, and goggles to protect from chemical splashes

A

Cleaning Materials

28
Q

Daily Cleaning

A

– crossover assemblies soak in a warm water and Scotch Brite and wet sponge are used to remove deposits

  • entrance rollers and squeegee assemblies are damp wiped and not soak in water
  • feed tray must be damped wiped and treated with antistatic cleaner
29
Q

Weekly Cleaning

A

– complete daily cleaning checklist

  • deep rack should be washed separately with warm water. Attention should be given to the sides including gears, chains and rollers
  • clean other areas such as main drive shaft, rack support plates, and worm gears
30
Q

system cleaner for the developer racks and tanks should have an acid pH level that reacts with the alkaline developer _____ to break down developer deposits

A

pH 10.6

31
Q

for acid fixer a pH of ___ should be used

A

4.1

32
Q

breaks down the hydroquinone that results in the loss of blacks in the radiograph

A

chlorine-based systems cleaner

33
Q

breaks down the hydroquinone and create sludge and dissolve metallic silver

A

sulfamic-based systems cleaner

34
Q

for most parts of radiographic equipment, the preventive maintenance and inspection procedure consists of a detailed examination of the device’s electrical and mechanical condition and safety inspection to insure that the device functions reliably, reproductively, and safely

A

Preventive Maintenance

35
Q

Three levels of Single Preventive Maintenance Procedure

A

Level 1 – thorough inspection and operational test procedure performed yearly
Level 2 – detailed survey of the device’s physical condition and operation integrity. Designed as midyear inspection and performed approximately 6 months after level 1 inspection
Level 3 – functional operation and safety test. It is brief and intended to keep equipment in service

36
Q

Visual Inspection (1)

A

– ceiling brackets, clamps and tie-downs for control and power cabling should be securely attached and strong enough to support the cabling

  • control knobs, mechanical locks and levels should be securely attached to the driven element properly indexed
  • cabling, conductors and accessories should be clean, free of cracks, frays or splices and functional
  • nuts, bolts, screw, and other hardware should be tight and in good condition
  • wheels and rollers should be clean, free of dust and corrosion, properly lubricated and functional
  • electrical connectors should be free of cracks and breaks and should be properly attached to the housing, chassis, cords, or cabling
  • cables, clips, and terminals should be free of dirt, dust, and corrosion and should not be worn or pitted
37
Q

Visual Inspection (1)

A
  • the grounding system should be of an approved type, properly installed, and functional
  • switches, circuit breakers, fuse holders, and indicators should be free of dirt, dust, and corrosion and should not be worn, pitted, scratches, or marred
  • all electrical components should be properly mounted and should operate without overheating
  • circuit breakers and line switches should be accessible
  • interlocks should be properly mounted and functional
38
Q

Performance Testing

A
  • indicators, such as pilot lights, and audible alarms, and meter movements, should operate as specified by the manufacturer’s operating manual
  • appropriate specific responses should occur when controls are placed in specific positions as specified by the manufacturer’s operating manual
  • the ground impedance from controller chassis and tube housing to power connections should not be allowed to exceed 0.1 Ω
39
Q

the unit’s service outlets and electrical distribution should be inspected and tested to insure that

A

Environmental Inspection

40
Q

Environmental Inspection

A
  • Voltage level is within specified limits
  • The receptacles polarity is correct
  • The receptacles are grounded
  • The receptacles have mechanical integrity and are of approved hospital grade
  • Mechanical clearance between the x-ray controls, tube housing, transformer and other instruments, apparatus, and devices should be adequate
41
Q

Radiographic Mechanical Apparatus

A
  • Environmental Inspection

* Mechanical clearance between the tabletop and other instruments, apparatus, and devices should be

42
Q

Environmental Inspection

o The service outlets and electrical distribution used should be inspected and tested to insure that:

A
  • Voltage level is within specified limits
  • Polarity is correct
  • Proper ground is present
43
Q

Bucky Units

• Visual inspection

A

o Mounting brackets, clamps and tie-downs for control and power cabling should be securely attached and strong enough to support cabling
o Mechanical locks and levers should be securely attached and functional
o Cabling, conductors, and accessories should be clean, free of cracks, frays or splices, and functional
o Mechanical hardware (springs, nuts, bolts, screws, and other similar components) should be properly mounted, and functional
o All electrical components should be properly mounted and should operate without overheating

44
Q

Bucky Units

• Performance Testing Factors

A

o Release latches, limit switches, dash pots, and drive elements should move the Bucky assembly in a controlled manner
o Bucky motion should start before initiation of exposure and stop after termination
o Table vibration due to the Bucky movement should not be excessive

45
Q

Radiographic Tables

• Visual Inspection (1)

A

o Brackets, clamps, and tie-downs for control and power cabling should be securely attached and strong enough to support the cabling
o Control knobs, mechanical locks, and levers should be securely attached to the driven element and properly indexed
o Switches, circuit breakers, fuse holders, and indicators should be accessible, free of dirt, dust, and corrosion and should not be worn, pitted, scratched, or marred
o Cabling, conductors and accessories should be clean, free of cracks, frays or splices, and functional
o Gears, chains and rollers should be clean, free of dust and corrosion, properly lubricated, and functional

46
Q

Radiographic Tables

• Visual Inspection (2)

A

o Electrical connectors should be free of cracks and breaks and should be properly attached to the housing
o The grounding system should be of an approved type, properly installed, and functional
o All electrical components should be properly mounted and should operate without overheating
o Interlocks should be properly mounted and functional
o Handholds, footrests, and patient strapping should be clean, free of defects, and functional

47
Q

Radiographic Tables

• Performance Testing

A

o Indicators should operate as specified by the manufacturer’s operating manual
o The table should rotate smoothly through its full arc, with minimum mechanical vibration
o When necessary, the tabletop should move through its degrees of freedom with minimum effort
o Rotation of the table or sliding of the tabletop should not be encumbered by cable drops
o The ground impedance from the radiographic table to power connections should not exceed 0.1 Ω

48
Q

Secondary Radiation Grids

• Visual Inspection

A

o Clamps and holders for the grid frames should be securely attached and strong enough to hold the grid firmly
o Mechanical locks should be securely attached and properly positioned
o Grid surfaces should be clean, free of deposits, and properly identified; the top surface should be indexed

49
Q

Secondary Radiation Grids

• Performance Testing Factors

A

o Minimum grid lines should appear on exposed radiographic film
o No slippage of the radiation in its Bucky holder should be allowed

50
Q

the fluoroscopic screen should be properly mounted, clean, and functional

A

Spot-Film Devices and Fluoroscopic Imaging System

51
Q

the tube-head assembly should be clean, properly filled with oil, and free of leaks

A

Mobile X-ray Systems

52
Q

the tube-head assembly should lock in the stowed position for transport

A

Mobile X-ray Systems

53
Q

cleanliness is of the utmost importance. Dirt, oil, and grease buildup contributes to a large number of whole-body scanner failures

A

Whole-Body Scanners

RT 209 (11 decks)

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