PN 97999Ć99
66605XĆX
Page 8 of 8
TROUBLE SHOOTING
Product discharged from air exhaust.
Check for diaphragm rupture.
Check tightness of (6) diaphragm nut.
Air Bubbles in Product Discharge.
Check connections of suction plumbing.
Check band clamps on intake manifold.
Check O" rings between intake manifold and fluid caps.
Check tightness of diaphragm nut.
Pump blows air out main exhaust when stalled on either stroke.
Check U" cups on (111) spool in major valve.
Check (141) valve plate and (140) insert for wear.
Check (103) sleeve and (2) O" ring on diaphragm connecting rod.
Check (119) O" rings on (118) piston for wear.
Low output volume.
Check air supply.
Check for plugged outlet hose.
For the pump to prime itself, it must be mounted in the vertical posiĆ
tion so that the balls will check by gravity.
Check for pump cavitation - suction pipe should be 1/2" min. or largĆ
er if high viscosity fluids are being pumped. Suction hose must be
nonĆcollapsible type, capable of pulling a high vacuum.
Check all joints on intake manifolds and suction connections. These
must be airtight.
Check for sticking or improperly seating check valves.
If pump cycles at a high rate or runs erratically, check (119) piston
O" rings for wear.
DIMENSIONAL DATA
Dimensions shown are for reference only, they are shown in inches and millimeters (mm).
4Ć13/16"
(122 mm)
5Ć3/16"
(132 mm)
11Ć11/32"
(288 mm)
10Ć1/16"
(255 mm)
5/16" Slot
(8 mm)
8Ć5/32"
(207 mm)
6"
(152 mm)
5Ć1/2"
(140 mm)
8Ć15/32"
(215 mm)
Single Piece Manifold
2Ć1/32"
(51 mm)
6Ć5/32"
(156 mm)
1/2 Ć 14 N.P.T.
Material Outlet
1/2 Ć 14 N.P.T.
Air Inlet
1/4 Ć 18 N.P.T.
Material Inlet
1/2 Ć 14 N.P.T.
NOTE: LOOSENING THESE
FASTENERS WILL ALLOW
INLET / OUTLET TO ROTATE.
6Ć7/16"
(164 mm)
Figure 4
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