Graco 312497F Manual De Usuario
Repair
312497F
7
Repair
General Repair Instructions
•
Before performing any repair procedures, relieve
pressure, page 2.
pressure, page 2.
•
Pressure test distribution blocks yearly or every
8000 hours. Replace seals and divider valves as
necessary.
8000 hours. Replace seals and divider valves as
necessary.
Purging Air From the System
Before machine operation is resumed following mainte-
nance or repair, manual system air purging must be per-
formed.
nance or repair, manual system air purging must be per-
formed.
There are several air purging procedures available
depending upon the maintenance or repair procedure.
depending upon the maintenance or repair procedure.
NOTE: Use only clean oil filtered to the SAE -recom-
mended cleanliness level of ISO 18/14 (ISO Standard
4406) when prefilling a system. The manufacturers of
the machine tool and its component bearings should be
consulted to ensure that the ISO 18/14 cleanliness level
is adequate.
mended cleanliness level of ISO 18/14 (ISO Standard
4406) when prefilling a system. The manufacturers of
the machine tool and its component bearings should be
consulted to ensure that the ISO 18/14 cleanliness level
is adequate.
Page
Section
Air purging after:
8
1
Replacing line between a secondary divider valve and lube point.
9
2
Replacing a line between the master divider valve and a secondary
divider valve.
divider valve.
3
Replacing a line between pump and master divider valve.
11
4
Adding or replacing any component in a master divider valve assembly.
5
Adding or replacing any component in module in a secondary divider
valve assembly.
valve assembly.