Claas K5D00100, Repair Manual

Page: 210 / 252

BOOM 4.1
DESCRIPTION AND OPERATION
Description
The machine has a two section telescopic boom.
Each section consists of a box section with the inner
section moving inside the outer section.
When operating the control valve
using the manual controls, take care
that you keep clear of any moving
components.
The boom is controlled using the ‘Solo’ control handle
located in the cab. The boom can also be controlled
manually from the control valve located at the rear of
the boom, using the manual operating modules.
The inner section can be extended to any position
from fully retracted to fully extended. The boom
position is limited, depending on the weight being
carried, boom angle and boom extension.
To prevent an overload, the machine is fitted with a
forward stability indicator, located in the cab. The
forward stability indicator gives a progressive
indication of load on the rear axle to warn the
operator when the machine is nearing its safe
working load.
To ensure the inner section operates smoothly, non-
metallic wear pads are fitted between the inner and
outer sections, at the front of the outer boom and the
rear of the inner boom. Two wear pads are also fitted
at intervals along the outer boom.
The boom operations consist of:
- lift/lower
- extend/retract
- carriage crowd back/tip forward.
The carriage is fitted to the front of the inner boom
section and carries the attachments. The
attachments are secured to the carriage by a locking
mechanism, which is either manually or hydraulically
operated.
A pair of cassette trays are fitted inside the inner
boom to house the hydraulic pipes for the crowd
cylinder and the 1st auxiliary services.