Multiquip HAL 300 - Manual (Page 11)

Bullfloat HAL 150 & 300 — PARTS & OPERATION MANUAL — REV. #1 (05/27/99) — PAGE 11
HAL 150 AND 300 — WHAT IS A BULLFLOAT
What is a Bullfloat?
A Bullfloat is an apparatus with a vibrating alloy blade that
smooths and compacts the top layer of freshly poured
concrete, without the need for guiding rails.
Before the Bullfloat is brought into action, the concrete should
be distributed and compacted by means of a vibrator.
The vibrator is used in combination with a laser, in order to
adjust and control the height of the concrete floor.
The Bullfloat consists of an operating handle, an electrical or
gas-engine vibrating-unit and an aluminium blade, available
in 5 lengths: 1m, 1.5m, 2m, 2.5m, and 3m.
The switch is located on the operating handle with which the
electrical vibrating-unit is switched ‘ON’ and ‘OFF’. The gas-
engine vibrating-unit is operated by means of a gas throttle
also located on the operating handle.
Operation
The drive-unit of the Bullfloat is started by turning the knob of
the electric-speed-regulator to the ‘ON’ position (electrical), or
by pulling the recoil-starter of the gas-engine.
An excentric part is set in motion by the drive-shaft of the motor.
This rotating motion sets the aluminium blade in vibration. The
vibrating motion of the blade smooths and compacts the
surface of the concrete.