Graco 312497F Manual De Usuario

•

Before performing any repair procedures, relieve 
pressure, page 2.

•

Pressure test distribution blocks yearly or every 
8000 hours. Replace seals and divider valves as 
necessary.

Before machine operation is resumed following mainte-
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.

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.

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.

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.