LIFTING GEAR
Cranes- pedestal- floating/heavy lift- HIAB/knuckle type- boat davits
Derricks- single- union purchase
Hoists- electric- air- chain
Types of Lifting Gear
Cranes Basic Components
Pedestal Crane
Reefer
General Cargo
Bulk Carriers
Pedestal crane
STANDARD FEATURES:
1. Level luffing jib
Limit Switches:
Limit switches are designed to shut the crane down whenit exceeds safe working parameters.
• Max. hook height• Max. jib elevation• Min. jib elevation• Ship out of trim• Dancing roller arrangement
Limit By-Pass
SWL Markings
Pedestal Crane
Pedestal with grab
Floating & Heavy Lift
HIAB & knuckle crane
Boat Davits
SWL markings for Cranes
SWL details must be marked:
on an external part of the the cranes structure, or
on derrick crane, or
on a plate near the heel of the derrick
and
in the driver’s cabin within easy view of driver
12T 30m / 20T 10m
SWL Outreach
Derrick/crane boom
Derricks
Union Purchase
Union Purchase
HOISTS
Chain
Electric
Air
Chain hoist:• High tensile lifting chain• Auto brake when power off• Max. and Min. hook height• SWL marked on hook and unit
Electric wire rope hoist: • Similar to chain hoist• Grooved drum with sliding rope guide
Chain Block:• Manual operated• SWL marked on unit• High tensile lifting chain
Inspect all equipment for defects.
Determine weight of load and position of the c of g
Decide method of slinging and lifting the load.
Ensure load is free to be lifted
Clear communications/ signals
Apply the load gradually to avoid exceeding the S.W.L.
Check the load's balance .
When lowering, stop a short distance above the landing site
NEVER leave controls unattended with a load suspended
Check lifting equipment before returning to stowage.
Procedure for Moving Loads
Stay clear of loaded boom
Heavy weights should never be allowed to drop
Avoid swinging loads. Shift loads under hook.
Do not exceed SWL
All motion with heavy lifts should be slow
Procedure for Moving Loads
SIGNALS: UNION PURCHASE
SIGNALS: CRANE