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4a. Master Divider Valve Equipped With Performance
Indicator
With the manual pump connected to the master
divider valve as outlined in step 3 of Locate and
Repair Blockages, on page 14, raise the pressure to
2000 psi (14 MPa, 138 bar). The indicator ports signal
the location of the blockage. An indicator in the up
position means that pressure is in that outgoing line
and signals the blockage is in the area being served
from this outlet (F
. 12).
IG
If no indicator pins are protruding, the blockage is in
the master divider valve.
HAND PUMP
INDICATOR PIN UP
MASTER
DIVIDER
VALVE
SECONDARY
DIVIDER
VALVE
F
. 12
IG
4b. Master Divider Valve Equipped Without Performance
Indicator
1) With the manual pump connected to the master
divider valve as outlined in step 3 of Locate
and Repair Blockages, on page 14, raise the
pressure to 2000 psi (14 MPA, 138 bar).
2) Remove each indicator port plug one at a time,
and attempt to operate the manual pump once
each plug is removed. Do not exceed 2000 psi
(14 MPa, 138 bar)
3) If the pressure drops and the master cycles
freely after an indicator port plug is removed,
then the blockage is downstream in the area
being served from that outlet. See step 3 of
Locate and Repair Blockages, on page 14.
312497ZAB
NOTE:
•
If all indicator port plugs are removed, the master
will not cycle. The blockage is in this divider valve.
•
When the indicator port plug of a blocked area is
removed, a small amount of trapped lubricant
usually surges out of this outlet as the inlet pressure
on the divider valve drops.
•
If testing (step 4) indicates a blockage in the master
divider valve, this divider valve must be
disassembled and cleaned. See step 7 of Locate
and Repair Blockages, on page 16.
HAND PUMP
LUBE
OUTLETS
TI11103
F
. 13
IG
5. If, during step 4, a blockage is indicated
downstream of the master divider valve, install a
manual pump in the indicator port of the master
divider valve that is common to the blocked area.
(See F
a. Proceed to the downstream secondary divider
b. Slowly operate the manual pump. If the lubricant
MASTER
DIVIDER
VALVE
SECONDARY
DIVIDER
VALVE
. 13).
IG
valve and remove all indicator port plugs.
is discharged freely through each of the
indicator ports of this divider valve, the blockage
is not in the supply line or the divider valve. Go
to step 6.
Repair
SYSTEM PUMP
LUBE
OUTLETS
INDICATOR
PORT
PLUGS
REMOVED
TI11104
15
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