134 S650 Operation & Maintenance Manual
SEAT BAR RESTRAINT SYSTEM
Description
The Seat Bar Restraint System has a pivoting seat bar
with armrests.
The operator controls the use of the seat bar. The seat
bar in the down position helps to keep the operator in the
seat.
Models with Standard Controls
have hydraulic valve
spool interlocks for the lift and tilt functions. The spool
interlocks require the operator to lower the seat bar in
order to operate the foot pedal controls.
When the seat bar is down, the engine is running, the
PRESS TO OPERATE LOADER button is activated, and
the brake is released, the lift, tilt, and traction drive
functions can
be operated.
When the seat bar is up, the lift and tilt control pedals are
locked when returned to the NEUTRAL position.
Models with Advanced Control System (ACS)
have
mechanical interlocks for the handles and pedals. The
interlocks for the handles and pedals require the operator
to lower the seat bar in order to operate the selected
controls.
When the seat bar is down, the engine is running, the
PRESS TO OPERATE LOADER button is activated, and
the brake is released, the lift, tilt, and traction drive
functions can
be operated.
When the seat bar is up, the handles and pedals are
locked when returned to the NEUTRAL position.
Models with Advanced Hand Controls (AHC)
have
mechanical interlocks for the handles. The interlocks for
the handles require the operator to lower the seat bar in
order to operate the controls.
When the seat bar is down, the engine is running, the
PRESS TO OPERATE LOADER button is activated, and
the brake is released, the lift, tilt, and traction drive
functions can
be operated.
When the seat bar is up, the handles are locked when
returned to the NEUTRAL position.
Models with Selectable Joystick Controls (SJC)
have
electrical deactivation of lift and tilt functions. Activation of
functions require the operator to lower the seat bar.
When the seat bar is down, the engine is running, the
PRESS TO OPERATE LOADER button is activated, and
the brake is released, the lift, tilt, and traction drive
functions can
be operated.
When the seat bar is up, the lift and tilt functions are
deactivated even though the joysticks do not
mechanically lock.
Inspecting
Sit in the seat and fasten the seat belt. Engage the
parking brake. Pull the seat bar all the way down. Start
the engine. Press the PRESS TO OPERATE LOADER
button.
Operate the hydraulic controls to check that both the lift
and tilt functions operate correctly. Raise the lift arms
until the attachment is about 600 mm (2 ft) off the ground.
Raise the seat bar. Move the hydraulic controls. Pedals
and handles (if equipped) must be firmly locked in the
NEUTRAL position (except joysticks). There must be no
motion of the lift arms or tilt (attachment) when the
controls are moved.
Lower the seat bar, press the PRESS TO OPERATE
LOADER button and lower the lift arms. Operate the lift
control. While the lift arms are going up, raise the seat
bar. The lift arms must stop.
Lower the seat bar, press the PRESS TO OPERATE
LOADER button, lower the lift arms and put the
attachment flat on the ground. Stop the engine. Raise the
seat bar. Operate the foot pedals and handles (if
equipped) to be sure they are firmly locked in the
NEUTRAL position (except joysticks).
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