16:30. Description and check of work of a control system of the speed (tempostat)
The control system of speed (темпостат or a cruise control) supports car speed by means of the vacuum servomotor located in a motive compartment which a cable connects to draft of the throttle valve. The system consists of the servomotor, the switch of coupling, the switch of a pedal of a brake, control switches, the relay and vacuum hoses.
In connection with complexity of a control system of speed its repair should be provided to dealer office of service. However the house mechanic can make simple checks of conducting and vacuum connections on existence of small damages which can be easily eliminated. Treat such checks:
- Survey of activated switches of a control system of speed regarding damage of wires and weakening of contacts.
- Check of safety locks of system
- The control system of speed uses vacuum therefore it is critical that all vacuum switches, hoses and connections worked reliably. Check hoses in a motive compartment for weakening of connections, existence of cracks or obvious leak of vacuum.