8 Troubleshooting
EN Concrete troweling BEG 90
18
8 Troubleshooting
Only suitably knowledgeable, qualified profes
sional technicians may perform repairs on the
machine.
8.1 Malfunctions and causes
Malfunction
Cause
Rectification
The machine does not start
No fuel
Refill fuel (min. 86 octane)
Wrong fuel
Replace fuel with the correct one
Spark plug defect
Replace spark plug
Dead man's switch defective /
not pressed
Replace / press dead man's switch
Petrol filter clogged
Clean petrol filter
Carburettor dirty
Clean carburettor
Motor switch on motor not switched
on
Set motor switch to "ON" position
Not enough motor oil
Refill/change motor oil
Uneven running of the
machine
Petrol filter dirty / insufficient fuel
Clean petrol filter/ refill fuel
Air filter dirty
Clean air filter
Choke betätigt
Choke öffnen
Spark plug defect
Replace spark plug
Carburettor dirty
Clean carburettor
Working tools defect
Replace working tools
Not enough motor oil
Refill/change motor oil
8.2 Malfunctions and causes with V-belts
Malfunction
Cause
Rectification
Ribbed belt breaking after
a short period of time
Belt not properly installed
Use suitable installation techniques
Ingress of foreign bodies / chemicals Check belt guard, replace if ne
cessary
Gearbox [6, Fig. A] blocked
Check for lubrication
Cuts and splits in the ribs
Belt slip
Check belt tension
Severe belt vibration
Too low belt tension
Tighten / replace belt
Excessive wear of ribs
Belt that gets caught on protruding
parts
Remove protruding parts
Belt too warm
Centrifugal clutch does not release
Replace clutch springs or
increase motor speed
Summary of Contents for BEG 90
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