Demag Speedhoist Manual Contents

Based on the visual command chart, What is the designation of symbol A9?

• Speed; normal run

• Lift fork carrier

• Left-turn movement, limited

• Adjust prongs; increase distance.

____________ Maintenance could lead to safety issues or damage.

• Insufficient

• inappropriate

• retainer

• Increased

After operation of the D-SH hoist, before commencing any maintenance work, first allow motor to :

• Cool down

• Lower by means of rope

• Allow motor to deenergize

• Start tear down

If a D-SH 160 crane is lifting at 4000 rpm, what is the lifting speed per minute:

• 58 meters per minute

• 29 meters per minute

• 35 meters per minute

• 70 meters per minute

_______ or ________ loads or pulling free fixed loads is prohibited

What color is the button for emergency stop on the crane controls:

• yellow

• red

• yellow with arrows up

• black with arrows down

Symbols are very important in Safety, what is the meaning of this symbol  in the operation of an overhead crane:

• warning

• danger

• caution

• all of them

Leaking oils and lubricants are hazards due to the increased risk of slipping, We can use sawdust as a absorbent:

• False

• True

We can handle suspended loads above people if the load is 50% less than the total lifting capacity. 

• true

• false

It is not necessary to inspect the crane safety switches if you are going to use the crane after a senior coworker:

• true

• false