McLaren P1 GTR, Owner'S Handbook Manual

Page: 41 / 84

MAINTAINING YOUR McLAREN
EMERGENCY SYSTEMS
3.3
EMERGENCY SYSTEMS
Fire Suppression System
NOTE: Due to the nature of the vehicle's
usage some of the systems are lifed, this
needs to be monitored using the
McLaren Diagnostic System (MDS). All
component Km life is listed in the
McLaren Diagnostic System (MDS).
Power pack testing and maintenance
The fire suppression system power pack is
located behind the centre console.
Before every track event the fire suppression
system must be tested.
On top of the power pack is a three position
switch. This provides checking facilities for
the battery and wiring. If the switch is pulled
against its spring towards the amber LED, the
LED will illuminate if there is sufficient current
in the battery. If the amber LED does not
illuminate, or immediately goes out, it should
be replaced. The battery should be of the
manganese/alkaline long life type only, type
PP3.
With the switch in the centre (‘system
isolated’) position, and the centre position
only, the wiring of the circuit can be checked.
With the extinguisher connected, press one of
the activation buttons and the green LED
should illuminate, If it does not there is a
break in the circuit. If the green LED lights
before the switch is pressed, there is a short in
the circuit and the system is permanently
‘live’. If this occurs do not put the switch into
the ‘system armed’ position, or the system will
discharge.
If for any reason the green LED does not
illuminate when the system is tested, contact
the system supplier or McLaren Special
Operations.
To arm the system place the switch in to the
‘system armed’ position. The red LED will
illuminate to indicate the system is armed.
To prolong battery life and prevent accidental
activation, it is recommended that the power
pack switch be in the ‘system isolated’
position and the plug disconnected when the
vehicle is not being used. Expiry
The fire suppression system has a limited
effective life. The suppression system cylinder
label contains the expiry date and must be
serviced on or before the date indicated.