Instruction manual

PROFICIENCY IN SURVIVAL CRAFT AND RESCUE BOATS OTHER THAN
FAST RESCUE BOATS
5 16
1. Function properly throughout an air temperature range of -
30˚C to +65˚C;
2. Function properly throughout a seawater temperature range of
-1˚C to +30 ˚C;
3. Automatically release the liferaft at a depth of not more than 4
metres;
4. Not release prematurely when seas wash over the unit;
5. Be capable of releasing a liferaft when the stowage is:
- horizontal
- tilted 45˚ and 100˚ with the hydrostatic release unit at
the upper side;
- tilted 45˚ and 100˚ with the hydrostatic release unit at
the lower side;
- vertical.
d) Marking
A hydrostatic release unit shall be marked permanently on its exterior with a
means of identifying its type, serial number, depth at which it will release, and in
addition if of a type which:
1) Requires annual servicing with its date of manufacture and a
small plate permanently attached to the unit for recording the date of servicing;
2) Is disposable, with the date at which it must be replaced.
Markings must be done solely by a manufacturer or an authorised service
station. The expiry date is 2 years from month of installation onboard. The
release unit is labelled with a marking for year and month. Use a knife and
carefully scratch away the appropriate square for month and year of expiry two
years ahead. A hydrostatic release unit, which is not properly marked with its
date of expiry, is not approved.
e) Instructions and Information
Instructions and information shall be provided in English in a clear and
concise form and shall include the following:
1) General description of the unit;
2) Installation instructions;
3) Any on board maintenance requirements;
4) Servicing requirement
5.5.4 Weak link
a) Construction and Materials
A weak link used in the float free arrangements shall:
1) Be made from a material which is corrosion resistant and not
affected by seawater, oil or detergent;