Graco 312497F Manual De Usuario

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Repair 
8
312497F
Section 1: Purging Air from Secondary Divider Valve Lube-to-Lube Point Lines
Steps 1-6, refer to F
1.
Install the line from the secondary divider valve to 
the lube point, but do not completely tighten the 
connection at the lube point.
2.
Remove the performance indicator port plug or the 
performance indicator from the working valve sec-
tion on the secondary divider valve assembly corre-
sponding to the outlet port and the line connected to 
the lube point.
3.
Attach a hand pump filled with clean, filtered lubri-
cant to the port on the secondary divider valve that 
was opened in Step 2.
4.
Operate the hand pump until air-free lubricant is 
observed flowing from the line at the lubrication 
point.
5.
Tighten the fitting at the lubrication point while lubri-
cant is still flowing.
6.
Remove the hand pump and reinstall the perfor-
mance indicator or indicator port plug removed in 
Step 2.
NOTE: If check valves were not installed at the lubrica-
tion point, lubricant may continually drain out of the line 
when the secondary port is open. Therefore, when 
check valves are not used, the method for bleeding this 
line is to tighten the line at both ends and repeatedly 
cycle the secondary divider valve via hand pump opera-
tion until lubricant, free of air, flows from the lubrication 
point
F
IG
. 6
TI11098
MASTER
HAND PUMP
BLEED HOSE
REMOVE INDICATOR
OR PORT PLUG
SECONDARY
LUBE POINT
HERE