JLG TOUCAN 1010, Руководство по обслуживанию

Страница: 55 / 89

55
Models
Edition 04-2006
Toucan 1010
ELECTRICAL CONTROLS DEVICE 6 6
6.4 Circuits protection
Never replace a faulty protection device by
another one of different characteristics.
6.4.1. façade circuit-breaker
S
YMBOL
:
F
UNCTION
: General protection of the control circuit.
O
PERATION
:
A
MPERAGE
: 7A
L
OCATION
: Emergency control panel.
! CAUTION
[CB1]
Normal position Disconnected position
[RX111]
! CAUTION
6.4.2. Resetable fuses
S
YMBOL
:
F
UNCTION
: protection of specific lines of the control
circuit.
P
RINCIPLE OF OPERATION
: These componants present
a variable resistance depending on the current. This
resistance is almost null for a current equal to the
value noted on the componant (value also notified
on the electrical schematic) and grow suddenly
when approaching the default current representing
twice the noted value. This condition comes with a
great elevation of the temperature of the componant
which help in locating the line in default.
NOTE
The componant does not open the default
line, but limits the current flow.
NOTE
30 seconds after the power has been cut off,
the componant is automatically reset.
The componant temperature under the
influence of a fault current may reach 125°C.