Atlas Copco Dynapac F1800C, Operation & Maintenance Manual

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F 90.18 5
Bleed central lubrication system
Bleeding the lubrication system is nec-
essary if the central lubrication system
has been operated with an empty lubri-
cant tank.
- Disconnect the main lubrication line
(A) at the distributor (B).
- Start up the central lubrication sys-
tem with the filled lubricant tank (C).
- Allow the pump to run until lubricant
emerges from the previously discon-
nected main line (A).
- Reconnect the main line (A) to the
distributor.
- Disconnect all distribution lines (D)
from the distributor.
- Reconnect all distribution lines as soon as lubricant has emerged.
- Check all connections and lines for leaks.
Check pressure limiting valve
m
If lubricant emerges at the pressure lim-
iting valve (A), this indicates a malfunc-
tion in the system.
The consumers are no longer adequate-
ly supplied with lubricant.
- Disconnect all distribution lines (B)
leading from the distributor (C) to the
consumers in succession.
- If lubricant emerges from one of the
disconnected distribution lines (B)
under pressure, search in this lubri-
cation circuit for the cause of the
blockage which has triggered the
pressure limiting valve.
- After rectifying the malfunction and
reconnecting all lines, again check
the pressure limiting valve (A) for lu-
bricant emergence.
- Check all connections and lines
for leaks.
A
B
C
D
D
A
C
B
B