Komatsu WB93R-5, Руководство по эксплуатации и техническому обслуживанию

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SAFETY LOCKS
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3.1 SAFETY LOCKS
DANGER
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If it is necessary to carry out any maintenance operation or to stop the machine with lifted loader arm,
always engage the mechanical safety retainer and lock the control lever.
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When travelling on roads, always engage the mechanical lock, lock the control lever in order to keep the
front bucket in a stable position and use the front bucket swing lock and the teeth guard.
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When travelling on roads or when the backhoe is not going to be used, always connect the boom to the
safety lock, fold the arm and the bucket completely and lock both the swing and the control lever.
On machines equipped with backhoe servo controls, the movements are inhibited by the servo control
locking button (see "3.3.2 pos. 12 - SERVO CONTROL LOCKING BUTTON").
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Non-compliance with these rules may cause serious damage in case of accidental lowering or rotation
of the equipment.
3.1.1 FRONT LOADER LOCKS
The loader arm is provided with two safety locks that have two
distinct essential functions:
a) SAFETY LOCK (1) for the position of the arm when the
machine is subjected to maintenance on the propeller unit
and inspection of the hydraulic system equipment and of
the auxiliary equipment housed in the engine compart-
ment and in any case to the inspections and maintenance
operations that must be carried out with lifted arm (A).
b) SAFETY LOCK (2) for the position of the arm when the
machine is travelling on roads (B).
It is important to remember that in work conditions the safety
lock (1) must be positioned against the arm (C) and secured in
that position by means of the safety pin (3), while the safety
lock (2) must be stored in the tool box positioned in the opera-
tor's cab, inside the right access platform.
IMPORTANT
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The safety locks (1-2) must always adhere to the rods of
the hydraulic cylinders, on whose eyes they are applied.
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The safety locks must be positioned definitively by
bringing the contact surfaces against each other with a
slow and continuous movement, in such a way as not to
damage the cylinder head surfaces.
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When the safety locks are in their definitive position, se-
cure them with the safety pins (3).
RKAB5880
A
1
3
RKA13800
3
2
B
RKAB5890
C
1
3
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