EDILGRAPPA PR16 - Troubleshooting the Hydraulic Components

PR16-32
24
FAULT
POSSIBLE REASON
POSSIBLE REMEDY
PERFORMED BY
ELECTROMAGNETIC
DISTURBANCES IN
LINE
Fault in anti-
disturbance filter
Replace
R
Manifold worn
Replace
R
Brushes worn
Replace
R
4.03 TROUBLESHOOTING THE HYDRAULIC COMPONENTS
FAULT
POSSIBLE REASON
POSSIBLE REMEDY
PERFORMED
BY
OUTWARD
STROKE DOES
NOT BEGIN
Return spring broken (if present)
Replace
O
Max. pressure valve dirty
Consult the Maker
/
Double-acting valve broken
Repair
M
Oil tank empty
Fill
O
MOTOR DOES
NOT STOP
Switch contacts stuck
Replace
M
OUTWARD
STROKE
INCOMPLETE
No oil
Top up
O
OUTWARD
STROKE
DISCONTINUOUS
Air bubbles in the hydraulic
circuit
Vent
O
Max. pressure valve open due to
built-up dirt
Consult the Maker
/
Pump faulty or dirty
Replace
M
Piston gasket faulty
Replace
M
Pump O-ring
Replace
M
RETURN STROKE
INCOMPLETE
Dirt between piston rod and tool
Move the piston to its end-
of-stroke position and clean
O
Return spring broken (if present)
Replace
O
NO FORCE
Oil hydraulic pump faulty
Replace
M
Dirt on oil hydraulic pump valve
Replace
M
Max. pressure valve open
Replace
M
Piston gasket worn
Replace
M
Pump O-ring broken
Replace
M
OIL LEAKS FROM
TANK COVER
Membrane faulty
Replace
O