Operation; Troubleshooting Guide - Belle Group BGP Manuel De L'opérateur

RECOMMENDATIONS FOR USE OF CONCRETE VIBRATOR
1. Choose the right size of poker for: the size of the job, the spacing of
reinforcement, slump of the concrete and the mix design.
2. It is recommended to have an additional concrete vibrator available.
3. Pour the concrete evenly, into the form work, in 300-500 mm thick layers. Do
not use the poker vibrator to spread the concrete.
4. Vibrate the concrete systematically. Make 300-500 mm vertical insertions at
intervals of 8-10 times the tube diameter. Where possible, push the poker
vibrator about 150 mm into the previous layer of the concrete, this will help
obtain the best bonding between the two layers.
The concrete has been thoroughly vibrated when the surface around the
poker is shiny and no large air bubbles rise to the surface of the concrete.
This normally takes 10-20 seconds at each location of the poker.
5. Withdraw the poker slowly so that the concrete can fl ow into the void left by
the poker.
6. Do not push or force the vibrator against the reinforcement. Keep a distance of 70 mm minimum from the walls.
7. Always remove the poker vertically, so the concrete fi lls the empty space again. Do not switch off until the poker is withdrawn
completely. The speed of removal is approximately 8 cm per second. When the vibrator is almost out, extract quickly to avoid
shaking the surface.
8. After use, it is important that the vibrator is fi lled with 60ml of oil and run for 30 seconds before storage.
Do not keep the concrete vibrator out of the concrete for long periods. If you have stopped vibrating the
CAUTION
concrete, turn the poker off.
Problem
Poker not vibrating
In line lubricator not
working

Troubleshooting Guide

Cause
Tufnol Vane Damaged
Rotor Damaged
Blockage in air hose
Lubricator empty
Oiler damaged / Broken

Operation

Remedy
Replace
Replace
Remove blockage or replace air hose
Refi ll lubricator with correct grade oil
Repair / replace as necessary.
7
GB
GB