ARO 66610*-*-C series Operator's Manual - Page 10
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Product discharged from exhaust outlet.
y
Check for diaphragm rupture.
y
Check tightness of diaphragm nut.
Air bubbles in product discharge.
y
Check connections of suction plumbing.
y
Check "O" rings between intake manifold and fluid caps.
y
Check tightness of diaphragm nut.
8"
12-1/2"
(318 mm)
6-1/4"
(159 mm)
7-5/16"
Page 10 of 12
TROUBLE SHOOTING
DIMENSIONAL DATA- 6661X0, 1XA, 1X2 and 1XC
(Dimensions shown are for reference only, they are displayed in inches and millimeters (mm)).
1- 11 1/2 NPTF -1 (66610X, 66611X)
1 - 11 BSP (66612X, 66613X)
(203 mm)
11-9/16"
(294 mm)
1-1/4"
(32 mm)
(186 mm)
1- 11 1/2 NPTF -1 (66610X, 66611X)
1 - 11 BSP (66612X, 66613X)
Low output volume, erratic flow, or no flow.
y
Check air supply.
y
Check for plugged outlet hose.
y
Check for kinked (restrictive) outlet material hose.
y
Check for kinked (restrictive) or collapsed inlet
material hose.
y
Check for pump cavitation − suction pipe should be sized
at least as large as the inlet thread diameter of the pump
for proper flow if high viscosity fluids are being pumped.
Suction hose must be a non-collapsing type, capable of
pulling a high vacuum.
y
Check all joints on the inlet manifolds and suction con-
nections. These must be air tight.
y
Inspect the pump for solid objects lodged in the dia-
phragm chamber or the seat area.
8-9/16"
(217.5 mm)
Outlet
Inlet
4"
(102 mm)
13/32" Slot
Figure 6
Air Inlet
1/4 - 18 NPTF -1
6-1/2"
(165 mm)
(10 mm)
66610X-X-C (en)