AKYAPAK AHS - Page 85

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: 85/94
AKYAPAK-AHS-UserManual-2019.03.11
FAULT
DETECTION
REMEDY
Upper roll does not move
down
Upper roll valve is not
powered.
Check it.
Check the upper roll valve
relay and fuse.
Check it.
Button may be faulty.
Check it.
Hydraulic cylinder leaks.
Check it.
Check speed setting valves in
the lifting cylinder.
Check it.
Cover does not close
Check the upper roll down
switch.
Check it.
Check the cover valve relay
and fuse.
Check it.
Button may be faulty
Check it.
Hydraulic cylinder leaks.
Check it.
Cover closing pressure may
be low.
Check it.
Noise from reducers
Reducer oil may be lacking.
Check it.
Noise from pump.
Very cold oil
Heat the oil
Adding thick oil
Replace the oil
Vapour in the reservoir
Check it.
Ventilation is not provided in
the reservoir
Replace the oil filler cover.
Air ingress from the seal on
the pump shaft
Check it.
Air ingress from the intake
pipe
Check it.
Offsets in motor-pump
connection
Check it.
Pump may be faulty.
Check it.
Elevator does not move up
and down
Elevator valve is not
powered.
Check it.
Check the elevator valve
relay and fuse.
Check it.
Button may be faulty.
Check it.
Hydraulic cylinder leaks.
Check it.