38
Operation disturbance
Cause of operation distur-
bance
Solution
The user interface displays alarm
for high pressure in a lubrication
channel. The pressure at the pres-
sure control unit is above the set
pressure low limit value when
pressurization starts.
The lubricant has stiffened in the
piping because of the operating
conditions (e.g. cold, heat).
The control valve at the hydrau-
lic part does not operate.
Set the maximum pressurization
time longer or change the lubricant
for an appropriate lubricant. Reset
the alarm.
Check that the set values for high
and low limit pressure are correct.
Contact Oy SKF Ab when neces-
sary.
Check the pressure of the pressure
air.
Check the operation of the sole-
noid valves MV1 and MV2.
Warning
Before solving the following operation disturbances, turn off the power at the
control and pumping center. Turn off the pressure air supply by lifting up the shut-off valve but-
ton (
→
Figure 10, pos. e). Before opening the grease filter, remove pressure from the system
by opening the venting screw in the filter plug.(
→
Figure 11, pos. 11). If the system is under
pressure when the components are being disconnected or opened, the components or lubri-
cant might be flung in the air causing injury to people or damage to the environment.
Operation disturbance
Cause of operation distur-
bance
Solution
The pump starts but the pressure
does not rise.
The grease filter has clogged.
There is air in the suction piping
of the pump.
There are impurities in the suc-
tion head of the pump.
Clean or replace the grease filter
cartridge.
Remove air from the pump by
opening the venting screw .(
→
Fig-
ure 5, pos. 11) of the grease filter
or the pressure connection (P) of
the pump. Make sure that only
grease is coming out of the venting
screw or pressure connection (not
air).
Contact Oy SKF Ab.
The user interface displays alarm
for high pressure in a lubrication
channel. The pressure at the
pressure control unit is above the
set pressure low limit value when
pressurization starts.
The control valve at the hydrau-
lic part does not operate.
Replace control cartridge CHV-100
when necessary.