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Maintenance
4-2. Bleed assembly
Turn the adjusting screw
anticlockwise to dismantle
the bleed assembly.
●
Be careful not to loose
the valve(33), seal
ring(32) and spring(31).
Replace the gasket with
new one at each disman-
tlement. Pay attention to
a mounting direction of
the spacer(35).
4-3. Diaphragm
■
Disassembly of dia-
phragm
1) Remove the suction
hose, discharge hose and
bleed hose.
2) Remove the pump head
with a hex. wrench.
3) Turn the diaphragm
to remove it from the
plunger (pump shaft).
Warning
Pay attention not to lose the diaphragm spacer and to apply
correct number of the diaphragm spacer. 0 to several pieces
of the diaphragm spacers are put between the retainer and
plunger to adjust a position of diaphragm. The number of the
spacers mounted depends on a pump model. Some models do
not have spacer.
Adjusting screw
30
31
35
33
32
29
Pump head
