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Page 8 of 8 PD05P-XXX-XXX (en)
PN 97999-781
TROUBLE SHOOTING
Product discharged from air exhaust.
Check for diaphragm rupture.
Check tightness of (14) bolt.
Air bubbles in product discharge.
Check connections of suction plumbing.
Check “O” rings between intake manifold and uid caps.
Check tightness of (14) bolt.
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 con-
necting rod.
Check (119) “O” rings on (118) piston for wear.
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Low output volume.
Check air supply.
Check for plugged outlet hose.
For the pump to prime itself, it must be mounted in the
vertical position so that the balls will check by gravity.
Check for pump cavitation - suction pipe should be
1/2” minimum or larger if high viscosity uids are being
pumped. Suction hose must be non-collapsible type, ca-
pable of pulling a high vacuum.
Check all joints on the intake manifolds and suction con-
nections. These must be air tight.
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.
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DIMENSIONAL DATA
Dimensions shown are for reference only, they are displayed in inches and millimeters (mm).
Figure 5
H
J
D
GB
C
L
K
AF
E
(Material Inlet)
N
(Material Outlet)
N
(Air Inlet)
M
DIMENSIONS
A - 7-11/16” (195.3 mm)
B - 11-1/32” (280.2 mm)
C - 6-1/8” (155.6 mm)
D - 2” (50.8 mm)
E - 6-7/16” (163.6 mm)
F - 6” (152.4 mm)
G - 11-5/8” (295.3 mm)
H - 4-7/8” (123.8 mm)
J - 5-1/2" (139.7 mm)
K - 5/16” (7.9 mm)
L - 8-1/4” (209.6 mm)
M - 1/4 - 18 P.T.F. SAE short
N - 1/2 - 14 N.P.T.F. - 1