42
Brush Cutter 4500 Hydro
6. Troubleshooting
W
Observe safety instructions! Have all serious malfunctions on the machine or engine repaired by your
agria workshop. They have the proper tools. Improper repairs can only add to the damage.
Problem
Possible cause
Remedy
Page
Spark plug connector not
connected
Connect spark plug connector
26
CHOKE is not operated
Set choke lever to position CHOKE
26
Engine shut-off switch is set to „0“
Set engine shut-off switch to „I“
26
Safety circuit is not set to start
position
Set safety circuit to star t position
26
Mulching drive not switched off
Switch off mulching drive
26
Driving speed not in position
neutral
Set driving speed to „0“ neutral
26
Park brakes not applied
Set both steering levers to "park brake" and
lock
26
Fuel tank empty or poor fuel
Fill fresh fuel
25
Fuel line clogged
Clean fuel line
BM
Defective spark plug
Clean, adjust or exchange spark plug
BM
Engine too much fuel („flooded
engine“)
Dry and clean spark plug and start at full
throttle
BM
Engine-off-line defective
Check line and connections
F
Petrol engine
does not start
Inleaked air due to loose caburetor
and suction line
Tighten attachment bolts
F
Engine running in CHOKE range
Set CHOKE to operating position
26
Loose ignition cable
Fit connector tightly on ignition cable,
fix ignition cable retaining device,
fit connector tightly on spark plug
F
Clogged fuel line or poor fuel
Clean fuel line, fill fresh fuel
25
Vent opening in fuel tank cap
clogged
Exchange fuel tank cap
Water or dirt in fuel system
Drain fuel and fill fresh fuel
25
Air filter clogged
Clean air filter or exchange
BM
Misfirings in
petrol engine
Carburetor misadjusted
Re-adjust carburetor
BM
Low engine oil level
Refill oil immediately
30
Impaired cooling
Clean cooling fan screen,
clean internal cooling fins
31
Air filter clogged
Clean air filter or exchange
BM
Excessive
tempeature in
petrol engine
Carburetor misadjusted
Re-adjust carburetor
BM
Short firing intervals
Asjust spark plug
BM
Misfirings in
petrol engine
at high speeds
Incorrect idle mixture
Adjust carburetor
BM
Firing interval too long,
defective spark plug
Adjust or replace spark plug
BM
Carburetor misadjusted
Re-adjust carburetor
BM
Petrol engine
frequently
stalls in idle
Air filter clogged
Clean air filter or exchange
BM