Claas K5D00100, Руководство по ремонту, Страница: 211 / 252

4.2 BOOM
OPERATION
The ‘Solo’ handle in the cab operates all boom
services.
The carriage crowd cylinder is hydraulically
connected to the compensator cylinder. Oil is
transferred between the crowd and compensator
cylinders during the lifting/lowering of the boom to
make sure the carriage stays at the same angle to
the ground throughout the arc of the lift. This works
independently of the crowd function, which allows
the carriage to be rolled forwards or backwards.
The extension cylinder is fitted inside the inner
boom. The forward end is secured to the inner boom
and the rear end is secured to the outer boom.
When the boom is operated, the hydraulic hoses for
the front auxiliary services and the crowd cylinder
are withdrawn from the cassette to allow the boom to
extend.
The front auxiliary services are connected to a
manifold on the left side of the inner boom drop-
down link and are connected, by flexible pipes to the
carriage.
A Joystick/Boom control isolator switch, in the cab,
gives the following facilities:
- To prevent operation of the carriage locking
pins when attachments are fitted to the
carriage
- To prevent all boom and auxiliary hydraulic
functions
- To prevent the carriage tilt function.