McHale HS2000 Round Bale Wrapper
82
14.6 Cut and hold operation, upper ram
Symptom Reason Solution
Ram fails to open No oil feed Turn on oil and check the quick
release coupling (ensure oil
feed is set at 35l/min)
Electrical power supply
fault, e.g. loose connec-
tions, poor battery and/or
charging system
Ensure that a 13V supply is
available and check all electri-
cal connections
Ram opens, but will
not open fully
Insufficient oil pressure
and/or flow
Set oil flow to 35l/min. and
ensure oil pressure is at a
minimum of 170 bar
Ram will not close No oil return Ensure that the “tank return”
line is connected “to tank” and
check quick release coupling.
Check tractor manual for
hydraulic connections on trac-
tor
Return hose not connected
High pressure on return line
Incorrect line connection
No power supply for sole-
noid on CVA00091 (the cut
and hold valve block)
Check connections leading to
the solenoid on the valve block
Film is not being cut
properly
Blade has gone blunt Carefully replace blade
Cut and hold does
not hold plastic film
Dispenser ‘stop position’
sensor is misaligned
Refer to section 10.5. for
sensor adjustment
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