Komatsu PC1250-11, Оригинальное руководство пользователя

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The lock lever is a device to lock the work equipment, swing,
travel, and attachment (if equipped) operations. Be sure to op-
erate the lock lever by the operating portion (g). Do not operate
the lock lever by holding the red bar on the console.
(L) LOCK position
The red bar on the console is lowered, and the machine does
not move even when the control levers or attachment control
pedals (if equipped) are operated.
(F) FREE position
The red bar on the console is raised, and it blocks the passage.
Machine moves according to the operation of levers or attachment control pedals (if equipped).
REMARK
Machine does not move when the lock lever is in LOCK position (L) while the control levers or control pedals
move since the lock lever is of hydraulic lock type.
Automatic lock function of lock lever
k k
WARNING
• The lock lever automatic lock function assists the operator in judgment to reduce damage caused
by accident. It does not stop the work equipment or machine in all situations.
• Even if the lock lever automatic lock function works, the work equipment or machine may not stop
immediately or may stop after moving by a certain distance. Also, the lock lever automatic lock
function may not work in the following cases. Do not rely on it too much.
• When the hydraulic oil temperature is low (When the hydraulic oil temperature caution lamp in-
dicates low temperature)
• When the viscosity of the hydraulic oil used is higher than that of the genuine hydraulic oils
which Komatsu recommends
• Before setting the lock lever to FREE position, make sure that all control levers and pedals are set
to NEUTRAL position. If any of them is out of NEUTRAL position, the work equipment or machine
may move suddenly and cause a serious personal injury or death.
The lock lever automatic lock function prevents the work equip-
ment or machine from operating unexpectedly when the lock
lever is released while the work equipment control lever or trav-
el lever is operated. The lock lever is set in the same state as
when it is locked automatically.
When this function works, the operations of the work equip-
ment, swing, travel, and attachment are locked automatically
and the message shown in the figure is displayed.
While this function is in operation, the machine does not move
even if the control levers or attachment control switches are op-
erated while the lock lever is in FREE position (F).
To cancel the lock, return the operating portion (g) of the lock
lever to LOCK position (L), check that each control lever and
the attachment control switches are in NEUTRAL, and then re-
lease the lock lever again.
EXPLANATION OF COMPONENTS OPERATION
3-98