PROBLEM
POSSIBLE CAUSE
SOLUTION
The splitting cylinder starts the splitting
operation, but returns too quickly or
returns after another function is activated.
The splitting valve fails to remain in the
position due to insufficient mains power.
Check tractor output voltage. If you power the
control mechanism with another power supply
by converting 220 V to 12 V, check the power
supply output. The current can rise to 16 A. DC
current from this power supply must be as “linear”
as possible without oscillations. A transformer
alone does not provide enough power and must
include a capacitor of sufficient capacity. Do
not use a cable with a small wire diameter or
excessively long cable due to high voltage drops
in the DC current.
The splitting cylinder moves completely
forward, but fails to return automatically.
The splitting cylinder can be returned
manually by pressing the red button on the
main control handle.
The end position inductive switch failed to
trigger a signal to return the splitting cylinder.
The position of the switch must be set to detect
the end position of the cylinder. The switch is
located under the machine cover next to the
splitting cylinder.
The splitting cylinder is losing power,
switching from high to low speed
may take longer, the machine cannot
reach maximum pressure. The machine
sometimes operates faultlessly and
sometimes with errors.
Potential leakage inside the splitting cylinder
due to a loosen piston. Potential cracks inside
the internal piston rod.
Cylinder repair is required.
Increased pressure (above 50 bars) on the
splitting gauge when idling. The hydraulic
oil can heat up faster.
The splitting cylinder cannot fully return
to the home position due to the excessive
accumulation of sawdust and wood particles
behind the cylinder. This is also indicated by
increased pressure when idling.
Lift the splitting cylinder cover and clean the
wood residues. Afterwards regularly clean the
area under the machine.
The height of the splitting wedge cannot
be set.
The splitting wedge may have disengaged
from the lifting mechanism.
Reinstall the splitting wedge inside the lifting
mechanism.
The drive belt is torn.
The speed of the PTO shaft is too low and the
chain is worn out and is not tensioned.
Replace the belt and use proper settings during
operation.
The belt is not tensioned sufficiently.
Replace the belt.
The chainsaw was blocked during sawing,
because the wood was not sufficiently fixed.
Replace the belt.
The gear bearing is blocked.
Replace the damaged bearings (service).
The saw bar does not move, but the log
holder and the chainsaw are operating.
A foreign body got jammed inside the throttle
between the hydraulic cylinder and hydraulic
block thus blocking the oil intake.
Remove the foreign body by unscrewing the
coupling, which holds the saw gauge. Here, a
throttle is located inside a small block, where the
foreign body is most likely located.
Sawing has slowed down.
The chain has worn out.
Install a sharp chain. The force used by the saw
bar to push the wood is always the same whereas,
the cutting speed depends on the chainsaw
quality and wood resistance when sawing.
The saw bar is overheating.
Insufficient lubrication increases friction and
subsequently causes overheating.
Use dedicated chainsaw lubrication oil, increase
lubrication pump flow, check oil level in the
lubrication oil reservoir, ensure uninterrupted oil
flow to the groove of the saw bar.
The PTO shaft speed is too high
– more than 430 min¯¹.
Set the PTO shaft speed to 420 min¯¹.
The saw bar is pulled in one direction
cutting sideways, overheating is also
possible.
The saw bar is bent. This was most likely
caused by wood movements during sawing.
Replace the saw bar.
A few cutting teeth on the chain are damaged.
Re-sharpen or replace the chain. Check the saw
bar as well.
The chain damaged the surface of the
chainsaw holder. The chain created an edge
on the surface of the holder where now the
saw bar rests. The saw bar is therefore placed
laterally according to the direction of cutting.
Grind off the edge.
The chainsaw clutch is slipping.
The clutch plates are worn out.
Replace the plates.
The oil is leaking on the slide surfaces.
Identify the source of the oil and degrease the
slide surfaces.
29
More demanding procedures must only be performed by a qualified service.
Summary of Contents for RCA 480 JOY
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