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KWT, CAMEL, KOLIBER, KW, LAMA
REAR EXTENSION ARMS
OPERATOR’S MANUAL
8.
DEFECTS AND THEIR REPAIR
In case of a malfunction, immediately stop the machine on a stable grounds, turn off the motor
and wait until the mowing head is fully stopped. Before disconnecting any of the hydraulic hoses, check
whether there is no pressure in the hydraulics and remember to cut-off the oil feed from the tan to the
machine's hydraulics. Hot or pressurized oil leak may cause serious bodily injuries. For the sake of the
operator's safety, the machine must be stopped on even ground. All hydraulic cylinders and moving
elements must be completely locked.
Malfunction
Cause
Recommendations
The machine is not
mowing properly or
leaves strips of uncut
grass
Worn or blunt flail knives
Sharpen the knives or replace
Wrong selection of type of flail knife to
work conditions
Mount correct flail knives
Too low cutterbar rpm
Adjust to adequate rpm on tractor output
540 or 1000 rpm depending on option
Inoperative tractor PTO, no rpm output
Check PTO shaft and repair in service
station
Improperly matched work conditions to machine and driving speed
Pump becomes inoperative or leak on
1-section divider
Check pump operation with use of flow
meter and pressure gauge. If oil feed and
pressure is correct, check the divider, if
necessary replace damaged elements
Damaged disk key on flail shaft-engine
coupling. (Heads with a direct power
transmission from engine on flail shaft)
Replace key
Inoperative hydraulic motor
Replace motor
Locked cutting chamber
Remove material deposits
Problem with arm
control with hydraulic
cylinders, they work
slowly, automatically or
become inoperative
Inoperative hydraulic cylinder, oil leaks
between the chambers
Replace sealing on the cylinder or replace
the cylinder
Defective cylinder control distributor, oil
leaks
Replace damaged elements
Hydraulic pump becomes inoperative
Damaged Joystick or controller for E or
EP control
Damaged wiring system
Repair the system
Control cable not adjusted
Make adjustments
No voltage on tractor
Perform tractor repairs
Loose ground cable.
Attach ground cable to machine frame
correctly
Damaged control system
Replace damaged parts
Closed throttle check valves
Check and adjust valves