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Machine Guarding > Machine Guarding > Flashcards

Machine Guarding Flashcards

1
Q

where work is performed on the material, such as cutting, shaping, boring, or forming of stock.

A

Point of operation

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2
Q

transmits energy to the part of the machine performing the work

A

Power Transmission Device

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3
Q

Control mechanisms

A

Operation Controls

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4
Q

can include reciprocating, rotating, and transverse moving parts, feed mechanisms, and auxiliary parts of the machine

A

Other moving parts

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5
Q

Key parts of machines

A

Point of Operation
Power Transmission Device
Operation Controls
Other Moving Parts

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6
Q

Hazards to be Guarded

A

In-running nip points
Rotating equipment
Flying chips or sparks
Belts or gears
Parts that impact or shear

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7
Q

In-Running Nip Points

A

Between 2 rotating parts
Between rotating and tangential parts
Between rotating and fixed parts which shear, crush, or abrade

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8
Q

Guarding Principles

A

Prevent contact
Secure guard
Protect from objects
No new hazards
No interference
Allow safe lubrication

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9
Q

Prevent contact between hazardous moving parts and body or clothing

Secure guard: not easily removed

Protect from objects falling into machinery

No new hazards: sharp/rough edges

No interference with job/comfort/speed

Allow safe lubrication: without removing guards if possible

A

Guarding Principles

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10
Q

Guarding Methods

A

Location / distance

Guards:

Fixed
Interlocked
Adjustable
Self-adjusting

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11
Q

is a permanent part of machine
Preferable over other types
(Fixed Guard)

A

Barrier

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12
Q

Stops motion when guard is opened or removed

A

Interlocked Guard

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13
Q

Barrier may be adjusted for variable operations

A

Adjustable Guard

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14
Q

Adjusts according to size/position of material

A

Self-Adjusting Guard

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15
Q

Cables attached to operator’s hands or wrists
Removes hands from point of operation during danger period

A

Pullback Device

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16
Q

Cables attached to fixed point and wrists or hands
Adjustable to let hands travel in predetermined area
May be accompanied by hand-feeding tools

A

Restraint Device

17
Q

Device located around the perimeter of or near the danger area
Operator must be able to reach the cable to stop the machine

A

Safety Tripwire Cable

18
Q

Requires constant pressure on both pads to activate the machine

Hands on controls at safe distance while machine is in dangerous cycle

A

Two-Hand Control

19
Q

Must close fully to protect user before cycle will start

A

Gate

20
Q

Location of hazardous parts that is inaccessible or not a hazard during normal operation

Must maintain safe distance

Training, warning, communication necessary

A

Safeguarding by Location/Distance

21
Q

Protection from flying particles or splashing fluids

Do not protectcompletely frommachine hazards

A

Protective Shields

22
Q

Parts Requiring Guarding

A

Drive belts and shafts – mud pumps and tank area

Pony rods
Rotating parts
Shale shaker
Agitator shafts & couplings
Moving generator parts

Air compressors
Crown sheaves
Kelly bushing – or controls
Rotary chain drive
Air hoist line
Drawworks
Bench grinder wheels

Belts, drive chains, gears and drives on power and hand tools
Traveling blocks
Sheaves
Cathead

23
Q

Safety Responsibilities

A

Management:
Supervisors:
Employees:

24
Q

Ensure all machinery is properly guarded

A

Management

25
Q

Train employees on specific guard rules in their areas

Ensure machine guards remain in place and are functional

Immediately correct machine guard deficiencies

A

Supervisors

26
Q

Do not remove guards unless machine is locked and tagged

Report machine guard problems to supervisors immediately

Do not operate equipment unless guards are in place

A

Employees

27
Q

Operators/affected employees should receive training on

A

Hazards associated with particular machines

How the safeguards provide protection and the hazards for which they are intended

How and why to use the safeguards

How and when safeguards can be removed and by whom

What to do if a safeguard is damaged, missing, or unable to provide adequate protection

28
Q

Risk of being struck between stationary and moving part

A

Reciprocating Parts

29
Q

Continuous straight line motion
Worker struck or caught in pinch or shear point

A

Transverse motion

30
Q

Direct injury from cutting action
Flying chips or sparks
Saws, drills, lathes, mills

A

Cutting action

31
Q

Ram stamps materials
Danger at point of operation

A

Punching action

32
Q

Powered blade that shears materials
Hazard at point of operation

A

Shearing action

33
Q

Power applied to a slide to stamp/shape materials.

Hazard at point of operation.

A

Bending action

Machine Guarding (4 decks)

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