Hitachi ZAXIS 135US-5B Operator's Manual page 228

Auto-Idle ON/OFF
Note that auto-idle function can be turned ON or OFF by
using auto-idle selector (3) only when the key switch is in
ON position.
Always check if the auto-idle function is turned ON or OFF
with auto-idle indicator (1).
Auto-Idle Indicator (1) ON
Auto-Idle Indicator (1) OFF
 When auto-idle selector (3) is turned OFF with auto-idle
indicator (1) ON, indicator (1) will go OFF and the auto-idle
system is deactivated.
 Even if the engine is stopped by turning the key switch
with auto-idle selector (3) in the A/I ON position [indicator
(1) ON], the auto-idle system is not deactivated. When the
engine is restarted, the auto-idle system remains activated,
allowing auto-idle indicator (1) to flash for 5 seconds and
stay ON later.
OPERATING THE MACHINE
: Auto-Idle Function ON
: Auto-Idle Function OFF
1
5-8
MDAA-01-314EN
3
MDCD-01-026