Operating Instructions; Finishing Operation - Altrad PRO 900 Manuel De L'opérateur

Using The Trowel
Guiding the trowel on the slab is very simple. Get into operator's position behind the centre of handle with good footing and apply the
throttle slowly until desired speed is obtained.
- Push handle down and machine will move to the right.
- Lift handle up and machine will move to the left.
- Slightly twist to the right and the machine will move forward.
- Slightly twist to the left and the machine will move backward.
- Holding the handle in neutral position the machine will remain stationary.
Preparation Of Concrete Surface
Use of a mechanical or air vibrating screeding machine to strike the concrete surface to level will provide good compaction to the
slab and produce an ideal surface for fi nishing. It should be remembered fl oating/fi nishing machines will not repair or correct a poorly
screeded slab.
Floating Operation
Before starting the fl oating operation be sure that the fl oating blades are correctly mounted on the fi nishing blades. Be aware that
with the blades turning clockwise, the fl oats should be positioned the same way. The slab will be ready to work for the fi rst fl oating
operation when the heel of your shoes leave a print of 2-3mm on the surface of the slab. On all other fl oating operations the blades
should be almost fl at. After the fl oated slab has set and your footprint is slightly visible, it is ready to start the fi nishing operation. The
timing of all these operations is dependent on weather conditions. On average the machine will take about 10 minutes to fl oat 100m 2 .
After each operation the engine should be stopped.
Never park the machine with the engine running, especially during the fl oating operation when the concrete is relatively soft.
Considering the machine is heavy, should it be left running on the soft concrete in the same spot, this will cause damage to the
fi nished fl oor tolerances.
CAUTION

Finishing Operation

After the fl oating operation the fi rst thing to do is to remove the fl oats from the fi nishing blades and clean the blades, spider plate and
protection ring of cement/concrete paste collected during the fl oating operation. Increase the blade pitch up to 10mm for the fi rst
fi nishing operation and then continue to increase the pitch on the following fi nishing operations.
Continue the fi nishing passes until you obtain the desired fi nished fl oor surface. The time required between each fi nishing pass is
dependent on the weather conditions, cement and water content of the concrete. If some areas of the concrete set harden too fast
you may apply a small amount of water with a brush to aid achieving a fi nish. Be careful when running the trowel on areas where
water has been applied because the machine will tend to skate away. Be sure to maintain control at all times.
Pitch Adjustment
The pitch control knob is in easy reach of the operator. The pitch adjustment has an unlimited pitch variation and this can be
undertaken whenever it is necessary.
During fi nishing the setting up/hardening may vary from area to area across the fl oor, so the pitch adjustment can be changed to suit
accurately, when required, while the machine is in operation.
Spider Plate
By experience we know the major problem on the trowel arm is lack of lubrication. During mounting we undertake the greasing
and sealing the Lightweight Trowel Arms on the Spider Plate, Greasing to be carried out on a weekly basis using the grease point
provided. If an arm becomes jammed, this is probably due to the arm being bent and will require replacement.
Machine Cleaning
Clean the machine after it has been used to prevent the collection of hardened cement.
Hard concrete/cement paste is very difficult to remove.
Changing Blades
Be sure spark plug is disconnected before changing the blades.
Make certain the machine is on a fl at surface; adjust pitch control so that the blades are fl at on the surface.
CAUTION
Remove bolts and lock washers on each trowel arm and remove the blades.
Before installing new blades, clean all concrete/cement from bottom and sides of the trowel; be sure trowelling edge of the blade is
behind trowel arm.
Install bolts and lock washers on each trowel arm and fasten them.
Liability
Belle Group declines any liability for possible damages to persons and / or things, which might arise from improper or wrong use of
the machine or nonobservance of the operating instructions contained in this manual.

Operating Instructions

Never lift the machine by the guard ring.
Lift from the lifting point provided.
Be careful when changing old blades for new. Due to the way the blades wear, the old blades become
very shrpe like a knife blade. As a safety precaution, wear heavy duty gloves during this operation to
prevent the hands being cut.
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GB