ZHP EG 4.13, ZHP EG 4.15, ZHP EG 4.19, ZHP EG 4.20, ZHP EG 4.22, ZHP EG 4.24, ZHP EG 4.25, ZHP EG 4.26

Common issues

• On-load release hook corrosion or misadjustment preventing reliable release or correct reset
• Engine starting failure from battery or fuel system neglect between drills
• Hull gelcoat/laminate damage from UV exposure and impact during launches
• Seat belt/restraint degradation from UV and weathering
• Skid or ramp friction surface wear affecting launch trajectory
• Painter/manual release gear malfunction

Inspection checklist

• Visual hull inspection for cracks, delamination or impact damage
• Function test of the on-load release hook per maker/LSA Code procedure
• Engine start and running check
• Battery condition and charging system check
• Check fuel system for water or contamination
• Check seating, restraints and harnesses for wear or damage
• Check painter and manual release gear
• Check ramp/skid condition and cradle chocks/securing

Service intervals

Typical intervals for this design class, not the manufacturer’s figures for your model. The manufacturer’s manual is binding.

Critical spares

• On-load release hook spring/pin set
• Engine starting battery
• Fuel filter elements
• Painter release line
• Hatch seal/gasket set

Safety

• The on-load release hook must only be tested per the LSA Code procedure - never loaded beyond what that procedure permits
• Free-fall launch generates significant deceleration loads - restraint use and briefed brace position are essential
• Verify the release hook reset indicator before boarding - a hook that has not reset correctly can release prematurely during hoisting/recovery
• The ramp/skid area is a fall and crush hazard during launch and recovery drills - restrict access while operating

Class survey

Freefall lifeboats fall under SOLAS III and the LSA Code, certified here under MED certificate MERB000068A. Note: Zollern GmbH & Co. KG is primarily known for marine deck machinery, gearing and lifeboat launching/release systems - where this record concerns a complete free-fall lifeboat hull rather than its release/launching gear, confirm the actual hull manufacturer against the vessel's LSA equipment register. Class/flag typically require the 5-yearly on-load release gear overhaul and load test, annual thorough examination, and records of weekly/monthly drills.

Estimated lifetime: Lifeboats are commonly given a design/service life in the order of 20-25 years by the manufacturer, subject to condition-based extension after survey - hull and release-gear condition, not running hours, govern actual serviceability.