ARO 66605 series Manual del usuario - Página 8
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Product discharged from air exhaust.
S
Check for diaphragm rupture.
S
Check tightness of (6) diaphragm nut.
Air Bubbles in Product Discharge.
S
Check connections of suction plumbing.
S
Check band clamps on intake manifold.
S
Check O" rings between intake manifold and fluid caps.
S
Check tightness of diaphragm nut.
Pump blows air out main exhaust when stalled on either stroke.
S
Check U" cups on (111) spool in major valve.
S
Check (141) valve plate and (140) insert for wear.
S
Check (103) sleeve and (2) O" ring on diaphragm connecting rod.
S
Check (119) O" rings on (118) piston for wear.
6 7/16"
(164 mm)
6"
(152 mm)
11 11/32"
(288 mm)
4 13/16"
(122 mm)
5 1/2"
(140 mm)
PAGE 8 OF 8
TROUBLE SHOOTING
DIMENSIONAL DATA
Dimensions shown are for reference only, they are shown in inches and millimeters (mm).
1/2 14 N.P.T.
10 1/16"
(255 mm)
2 1/32"
(51 mm)
Low output volume.
S
Check air supply.
S
Check for plugged outlet hose.
S
For the pump to prime itself, it must be mounted in the vertical posi
tion so that the balls will check by gravity.
S
Check for pump cavitation - suction pipe should be 1/2" min. or
larger if high viscosity fluids are being pumped. Suction hose must
be non collapsible type, capable of pulling a high vacuum.
S
Check all joints on intake manifolds and suction connections.
These must be airtight.
S
Check for sticking or improperly seating check valves.
S
If pump cycles at a high rate or runs erratically, check (119) piston
O" rings for wear.
5 3/16"
(132 mm)
8 5/32"
(207 mm)
5/16" Slot
(8 mm)
6 5/32"
(156 mm)
8 15/32"
(215 mm)
Single Piece Manifold
Material Outlet
1/2 14 N.P.T.
Air Inlet
1/4 18 N.P.T.
Material Inlet
1/2 14 N.P.T.
NOTE: LOOSENING THESE
FASTENERS WILL ALLOW
INLET / OUTLET TO ROTATE.
PN 97999 99
66605X X