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Overhaul of APPLETON API 2C rated Telescopic Offshore Crane

 

The Appleton Telescopic Service Crane on board of a US Navy Supply Ship experienced hydraulic leakage from the luffing cylinder and from the telescopic boom cylinder. A team of ALATAS Specialists were sent on board to dismantle the telescopic boom and extract the telescopic cylinder, as well as to dismantle and remove the luffing cylinder from the crane.

Both cylinders where then air freighted to our specialized ALATAS Hydraulic Workshop in Singapore for a complete overhaul. Besides new cylinder seal sets, the cylinder barrels were honed and the cylinder rods re-chromed.

The repaired cylinders, along with new hydraulic hoses and fittings where air freighted back on board and re-installed by a ALATAS Riding Squad.
Besides the cylinder overhaul, the crane also was refurbished with a new main control valve, function tested and overload tested.

 

 

Connection of telescopic hoses
Installation of pin to telescopic housing and lock
Pushing the boom into the crane boom
Installing the boom to crane
       
Adjustment of telescopic height
Alignment of telescopic boom to crane boom
Telescopic installation
Cleaning of telescopic pin housing
       
Installation of pin to top cylinder
Lifting of cylinder to crane boom
Chain blocks hanging at jib for cylinder installation
Checking of jib cylinder and telescopic cylinder at top of container
       
       
Jib boom view before at rest
Luff cylinder moving down by chain blocks
Telescopic cylinder removal
Extension boom removing in progress
       
   
Port Crane
Preparations for Load Test
   
   
       
 
 
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