Grand S370N, Owner'S Manual

Page: 95 / 108

SERVICE AND MAINTENANCE
95 Silver Line S370N, S420N Owner’s Manual
AIRTIGHTNESS OF THE INFLATABLE TUBE
The tube is considered to be airtight if it retains the recommended inflation pressure for
8 hours.
 As the inflatable tube is a primary safety feature - check the airtightness of your boat
regularly. Inspect the condition of all inflatable components and remember that some
natural release of pressure (see the information below) can occur. Make sure that:
 There are no material cracks, holes and leaks.
 All inflation valves and seams are intact.
 ISO 6185 standard permits up to 20% loss of pressure in any compartment within 24
hours.
 If you discover a significant reduction in pressure add some air using the foot pump
supplied.
Never use high-pressure equipment to inflate your boat;
Changes in ambient temperature have a significant influence on air pressure within the
tube. A variation of 1°C results in a variation in pressure of about +/- 4 mb (0,06 psi).