4.7 Bottle Jacks and Manual Backup Pumps

Describe the operation of a bottle jack using this diagram. Discuss pumping action, force multiplication, meter out flow control, and pressure relief.

jack

 

Comment on inspection and troubleshooting procedures for “broken” bottle jacks.

 

Describe the regular and override operation of this fail safe braking system making use of a manual backup pump.

pump2

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