|
4 Detail of release hook system
4.1 General
This section 4 is description about the details of the release gear system. Read this section carefully for safe operation.
This release gear system consists of fore and aft hooks, a release handle near steering console, a hydrostatic unit and the associated cables. (See Fig. 4.1)
Releasing operation of the hooks is conducted at release handle near steering console through the control cables terminating at the fore and aft hooks. The interlock system by the hydrostatic unit is provided to prevent the release of the hooks when the boat is not waterborne.
The system also has an on-load release function which is possible to over-ride the interlock by the hydrostatic unit. The on-load release operation may cause fatal casualty and due precautions should be paid for this operation.
Fig. 4.1 Schematic of release gear system
4.2 Fore and aft hooks
4.2.1 Structure and Parts name
Structure and parts names of the fore and aft hooks are shown in Fig. 4.2.1(a) and (b). The hooks are equipped on both of fore and aft of the boat and they are identical except their directions.
Fig. 4.2.1 (a) Appearance of the hook unit
Fig. 4.2.1 (b) Perspective of the hook
4.2.2 Releasing
When the release handle near steering console is pulled, the cam lever pin is turned through the control cable and the lock piece is then made free, and finally the hook is turned and released. (See Fig.4.2.2)
Fig. 4.2.2 Release principle of the hook unit
|
