AKYAPAK AHS - Page 83

A: Akçalar Sanayi Bölgesi Sanayi Cad.
No: 8/A 16225 Akçalar BURSA / TURKEY
T: +90 224 280 75 00
F: +90 224 280 75 01
E: info@akyapak.com.tr
W: akyapak.com.tr
Page: 83/94
AKYAPAK-AHS-UserManual-2019.03.11
FAULT
DETECTION
REMEDY
Side rolls move, but rolls do
not rotate.
Is power supplied to return
valve?
Check it.
Return valve relay may be
faulty.
Check it.
Return valve fuse may be
blown.
Check it.
Button may be faulty
Check it.
Pressure safety valve may be
faulty.
Check it.
Pump pressure line may be
removed.
Check it.
Primary pump may be faulty.
Check it.
Check the breaking valves.
If the idle rotation which shall
be 60-70 bar increase up to
130 bar
Hydraulic motor may be
faulty
Check it.
Reducer may be faulty
Check it.
Slider may be broken.
Check it.
One of the rolls does not
move up and down Conical
movement is available
Side roll valve is not
powered.
Check it.
Check the side roll valve
relay and fuse.
Check it.
Button may be faulty
Button shall be checked.
Displays may be set
incorrectly.
Check it.
Side rolls slip down
Counterbalances may be
faulty.
Check it.
Check the return filter
If the contamination indicator
is red, replace the filter
element.
Side rolls move more slowly
than normal.
Pump may be faulty.
Check it.
Pressure adjustment valve
may be faulty.
Check it.
Side cones do not open.
Side rolls are not moved
upwards adequately.
Check it.
Cone valve is not powered.
Check it.
Check the cone valve relay
and fuse.
Check it.
Button may be faulty
Check it.
Cylinder seals may be
Check it.