UniCarriers FRSB14-8 Operation & Maintenance Manual page 68

INTERLOCK INTERLOCK
The interlock is a safety device that cuts off the The interlock is a safety device that cuts off the
power to the drive and load handling circuits when power to the drive and load handling circuits when
the operator leaves the operator's seat during the operator leaves the operator's seat during
operation. This device helps prevent an accident operation. This device helps prevent an accident
from happening if the operator is not in the correct from happening if the operator is not in the correct
driving position or if the controls are moved driving position or if the controls are moved
unintentionally when no one is in the operator's unintentionally when no one is in the operator's
seat. seat.
The truck won't travel and the load handling system The truck won't travel and the load handling system
won't operate if the operator is not in the operator's won't operate if the operator is not in the operator's
seat. The operator's presence in the operator's seat seat. The operator's presence in the operator's seat
is detected by an interlock switch under the seat. is detected by an interlock switch under the seat.
WARNING WARNING
Do not leave the operator's seat while Do not leave the operator's seat while
• •
the forks are lowering. If the interlock is the forks are lowering. If the interlock is
activated while the forks are lowering, they activated while the forks are lowering, they
will stop suddenly and the load may shift will stop suddenly and the load may shift
or fall off the forks. or fall off the forks.
D o n o t r e s t a n y t h i n g h e a v y i n t h e D o n o t r e s t a n y t h i n g h e a v y i n t h e
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operator's seat; otherwise the interlock operator's seat; otherwise the interlock
may fail to operate as it should. may fail to operate as it should.
Do not modify Do not modify
• •
the operator's seat. The interlock switch is the operator's seat. The interlock switch is
designed to turn on when the operator sits designed to turn on when the operator sits
there. there.
Seat yourself squarely Seat yourself squarely
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seat when operating the truck. seat when operating the truck.
An offset position while driving may cause An offset position while driving may cause
the interlock to be activated. the interlock to be activated.
If the interlock is If the interlock is
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is going up a ramp and the truck stops, do is going up a ramp and the truck stops, do
not operate the reach lever, because the not operate the reach lever, because the
mast could move unexpectedly due to its mast could move unexpectedly due to its
own weight. own weight.
If the interlock is activated If the interlock is activated
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an optional load handling attachment, an optional load handling attachment,
do not operate the attachment lever. The do not operate the attachment lever. The
attachment might move unexpectedly due attachment might move unexpectedly due
to its own weight. to its own weight.
INSTRUMENTS AND CONTROLS INSTRUMENTS AND CONTROLS
the interlock switch under the interlock switch under
in the in the operator's operator's
activated while the truck activated while the truck
on a truck with on a truck with
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INTERLOCK OPERATION AND HOW TO INTERLOCK OPERATION AND HOW TO
RELEASE THE INTERLOCK RELEASE THE INTERLOCK
When the key When the key switch is in switch is in
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Interlock operation Interlock operation
The forks won't go down when the lift lever is The forks won't go down when the lift lever is
○ ○
placed in the "down" position. placed in the "down" position.
How to release the interlock How to release the interlock
Sit in the operator's seat and turn the key Sit in the operator's seat and turn the key
○ ○
switch to the "ON" position. switch to the "ON" position.
When the key When the key switch is switch is t
• •
position to the "ON" position when you are position to the "ON" position when you are
not in the operator's seat: not in the operator's seat:
Interlock operation Interlock operation
The load handling system won't operate when The load handling system won't operate when
○ ○
the load handling levers are operated. the load handling levers are operated.
The neutral status indicator light will blink, the The neutral status indicator light will blink, the
○ ○
interlock indicator light will come on, and error interlock indicator light will come on, and error
code "106" will be displayed on the instrument code "106" will be displayed on the instrument
panel. panel.
How to release the interlock How to release the interlock
Turn the key switch to the "OFF" position. Sit Turn the key switch to the "OFF" position. Sit
○ ○
in the operator's seat and then turn the key in the operator's seat and then turn the key
switch to the "ON" position. switch to the "ON" position.
All All of of the the signals signals
light, interlock indicator light and the error code light, interlock indicator light and the error code
– will go out. – will go out.
If you leave the If you leave the op
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switch in the "ON" position switch in the "ON" position
Interlock operation Interlock operation
○ ○ The interlock indicator light comes on and the The interlock indicator light comes on and the
error code "105" is displayed on the instrument error code "105" is displayed on the instrument
panel. panel.
The load handling system remains operative The load handling system remains operative
○ ○
for 3 seconds after the operator leaves the for 3 seconds after the operator leaves the
operator's seat. If more than 3 seconds operator's seat. If more than 3 seconds
passes, the load handling levers will become passes, the load handling levers will become
inoperative from outside the operator's seat. inoperative from outside the operator's seat.
How to release the interlock How to release the interlock
Sit in the operator's seat properly, and you will Sit in the operator's seat properly, and you will
○ ○
be able to actuate the load handling system. be able to actuate the load handling system.
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the "OFF" the "OFF" p position: osition:
turned from urned from the "OFF" the "OFF"
– – the the neutral neutral status status indicator indicator
operator's seat with the key erator's seat with the key