Rear Equipment Mechanical Quick Coupling Device - Komatsu WB93S-5 F50003 Operation & Maintenance Manual

REAR EQUIPMENT MECHANICAL QUICK COUPLING DEVICE

6.12 REAR EQUIPMENT
MECHANICAL QUICK COUPLING
DEVICE
The work equipment coupling and uncoupling operations
q
must be carried out on a firm and level surface.
The method described is valid for any rear equipment
q
whose operation does not require the use of pressurized
oil.
Before starting work, make sure that the coupling pins are
q
completely engaged in the equipment seats.
The mechanical quick coupling device (1) of the rear equipment
has been developed by Komatsu to facilitate the coupling and
uncopuling of the various pieces of equipment.
It is a practical and user-friendly device and therefore it
considerably reduces the time required to change the equipment.
The quick coupling device (1) also allows various type of
equipment to be easily connected to the machine, for example:
special buckets, drills, hydraulic hammers or other equipment,
provided that it is authorized by Komatsu. If necessary, the bucket
can be attached to the quick coupling (1) even in reversed
position, as shown in Fig. A.
For the assembly or disassembly of the quick coupling device (1)
on/from the backhoe arm, keep to the indications given in
paragraph "3.13.4.1 CHANGING THE BACKHOE BUCKET".
The quick coupling device (1) features (like for a simple digging
bucket) two different positions for the coupling to the backhoe,
which can be selected according to the operation to be performed
and to the equipment to be used:
Pos.1: Normal digging position
q
Pos.2: Indicated for operations on vertical walls, ensures the
q
maximum swing and the maximum digging height along walls.
IMPORTANT
The slot (C) serves for the insertion of the release lever and
q
must always be positioned on the outside of the machine,
as shown in Fig. B.
For any further information, see "6.12.1 EQUIPMENT
COUPLING AND RELEASE PROCEDURE".
280
WARNING
Pos.1
Pos.2
A
1
B
1
RWA38560
RWAB0520
C
1
RWAB0510