Strautmann EK 1107 - Hydraulic problems; Machine fails to build up high pressure

Remedying Faults in PP 1207–Klöckner Möller
Remedying faults PP 1207
page 38 –April 2005
7. Hydraulic problems
Problem Reason Remedy
7.1 Machine does not
build up high pressure
A. Valve sticking, pressure
control valve faulty or
misaligned and pump faulty
Actuate valve manually,
check pressure control
valve, check pump and
replace if necessary
7.2 Machine running very
slowly and does high
pressure in the normal
range
A. Pressure sequence valve
and low-pressure pump both
faulty
Test DFV [pressure
sequence valve] and
replace if necessary
Test pump and replace if
necessary
7.3 Machine does
pressure vibrations while
moving down
A. Pressure sequence valve
faulty
Test valve and replace if
necessary
7.4 Weight of bale too
high or too low
A. Wrong pressure presets Check and adjust
pressures.
7.5 Machine “gags" during
pressing process
A. Pressure sequence valve
wrongly set or faulty
Adjust magnetic switch
and test, replace if
necessary
7.6 Motor reverses while
being switched off
A. Non-return valves faulty Replace valves
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