Brush Cutter 4500 Hydro
43
6. Troubleshooting
Problem
Possible cause
Remedy
Page
Petrol engine
does not run
smoothly
Speed control linkages clogged or
jammed
Clean speed control linkages
31
Defective engine-stop-line
Check line and connection
F
Petrol engine
does not stop
when set to
stop
Earth missing
Check ground contact
F
Air filter clogged
Clean air filter or exchange
BM
Loose cylinder head or damaged
gasket
Tighten cylinder head, exchange gasket
F
Petrol engine
output too low
Poor compression
Have engine checked
F
V-belt tension defective
Check V-belt tensioning device
F
No wheel drive
V-belt defective
Change V-belt
35
Drive speed not
regular
Hydraulic operation defective
Check and adjust cables and operating
elements
F
Blockage in the steering operation
by foreign bodies
Remove blockage on the steering handles
and operating elements in the steering bar
F
33
Steering brake misadjusted
Readjust
F
33
Steering brake
has no effect
Bowden cables defective
Change bowden cables
F
V-belt tension defective
Check V-belt tensioning device
F
V-belt defective
Change V-belt
35
Mulching drive misadjusted
Readjust
F
No mulching
drive
Bowden cables defective
Change bowden cables
Loosened attachment bolts
Tighten attachment bolts
38
Excessive
vibration
Knives damaged or unevenly worn Replace knives
F
37
Mulching output
suddenly
declines
Dull knives
Change knives or re-sharpen them
Remove any burr with a hand grinding stone
BM = see operating instructions engine
F =
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Service
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