Wacker Neuson BPU 3050A, Руководство оператора

Страница: 12 / 30

T00855GB
10
DESCRIPTION
Description of function
The vibration required for compaction is produced by the exciter (5) which is firmly joinded to the lower mass
(4). This exciter (5) is designed as a central vibrator with aligned vibrations. Such a principle permits the direc-
tion of vibration to be changed by turning the eccentric weights (13). In this way an infinitely variable transition
between vibration in forward motion, at standstill and in reverse motion is possible.
This process is hydraulically controlled with the operating control handle (7) on the centre pole head (8).
Forwards On the spot Reverse
The drive engine (1) is anchored to the upper mass (3) and drives the exciter (5). The torque is transmitted by
means of a friction connection through the centrifugal clutch (9) and the exciter V-belt (10).
The centrifugal clutch (9) interrupts the power transmission to the exciter (5) at low engine turning speed, thus
allowing for a perfect idling speed of the drive engine (1). The turning speed of the engine (1) can be infinitely
adjusted by way of the throttle lever (6).
The upper (3) and lower (4) masses are connected to each other by 4 vibration-damping shock mounts (11).
This damping system prevents the very high frequencies from being transmitted to the upper mass (3). As a
result the functionability of the drive engine (1) is retained in spite of the high compaction performance.
he drive engine (1) works according to the 4-stroke principle, is started by way of a recoil starter, sucks in com-
bustion air over a dry air filter (12) and is air-cooled
.
To facilitate the starting procedure the drive engine (1) has an decompression mechanism.