• Do not connect a damaged power cord to the
product.
• Do not touch the power cord if it becomes damaged
during operation of the product. Disconnect the
power cord from the power outlet.
• Keep the power cord away from water, oil, sharp
edges and moving parts.
• Keep the product away from rain and wet conditions.
The risk of electrical shock increases if water goes
into the product.
• Use a power supply with RCD (residual-current
device) protection if you operate the product in a
moist environment. An RCD decreases the risk of
electrical shock.
Safety instructions for maintenance
WARNING Read the warning instructions
that follow before you use the product.
• If the maintenance is not done correctly and
regularly, the risk of injury and damage to the
product increases.
• Use personal protective equipment. Refer to
Personal protective equipment on page 6
.
• Stop the engine and make sure that all parts of the
product are cool before you do the maintenance.
• Clean the product to remove dangerous material
before you do the maintenance.
• Disconnect the spark plug cap before you do the
maintenance.
• The exhaust fumes from the engine are hot and can
contain sparks. Do not operate the product in indoor
areas or near flammable material.
• Do not change the product. Modifications that are
not approved by the manufacturer, can cause
serious injury or death.
• Always use original accessories and spare parts.
Accessories and spare parts that are not approved
by the manufacturer, can cause serious injury or
death.
• Replace damaged, worn or broken parts.
• Only do the maintenance as given in this operator's
manual. Let an approved service center do all other
servicing.
• Remove all tools from the product before you start
the engine after maintenance. Loose tools or tools
attached to rotating parts can eject and cause injury.
• After maintenance, do a check of the vibration level
in the product. If it is not correct, speak to an
approved service center.
• Let an approved service center do servicing on the
product regularly.
Assembly
Introduction
WARNING Read and understand the safety
chapter before you assemble the product.
CAUTION Vibrations in the product can
cause the truss screed sections to become
loose. This causes damage to the shaft and
the bearings. Tighten the fasteners again
after some minutes of operation.
To install the BT 90 EI and BT 90 GI
truss screed sections
Install the shortest truss screed sections first, then install
the longer truss screed sections.
1. Put the truss screed sections on level ground.
2. Remove the nuts (A) from the screws (B).
C
D
A
A
B
E
B
3. Move the nuts (C) near the center of the bolt (D).
4. Make sure that the rubber cross at the coupling (E)
is in good condition.
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