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PH10A-XXX-XXX (en)Page 8 of 8
TROUBLE SHOOTING
Product discharged from exhaust outlet.
S Check for diaphragm rupture.
S Check tightness of bolt (14).
Air bubbles in product discharge.
S Check connections of suction plumbing.
S Check “O” rings between intake manifold and fluid caps.
S Check tightness of bolt (14).
Pump blows air out main exhaust when stalled on either stroke, a
typical cause of pump malfunction can be attributed to problems
with “O” rings.
S Segments of broken “O” rings canmove aroundor lodge in areas of
the air motor valve section.
S Swollen “O” rings can cause valve parts to stick or seize. Solvents
can ruin the “O” rings.
S Do not use contaminated air supply.
S Do not use light weight oilin air supply, it willwashthe Key-Lube
grease out of the air motor section.
S Do not use air line additives containing solvents.
S Do not spray pump off with solvents, wipe clean only.
S Check “O” rings on (111) spool in major valve.
S Check (103) sleeve and (2) “O” ring on (1) rod.
S Check (168) “O” rings on (167) pilot piston for wear.
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” minimum 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 jointson intake manifolds andsuctionconnections. These
must be airtight.
S Check for sticking or improperly seating check valves.
S If pump cyclesata high rate or runs erratically, check(168) “O”rings
for wear.
DIMENSIONAL DATA
Dimensions shown are for reference only, they are shown in inches and millimeters (mm).
13-5/8”
(346.1 mm)
13/32” Slot (9.9 mm)
6-17/32” (166.1 mm)
Material Outlet
Air Inlet 3/8 - 18 N.P.T.F. - 1
12-9/16”
(318.7 mm)
11-5/8” (295.3 mm)
2”
(50.4 mm)
8” (203.2 mm)
16-1/16” (407.4 mm)
8-3/16” (207.8 mm)
7-17/32”
(190.8 mm)
Material Inlet
Material Inlet Material Outlet
PH10A-A
SS-XXT 1 - 11-1/2 N.P.T.F. - 1 1 - 11-1/2 N.P.T.F. - 1
PH10A-B
SS-XXT Rp 1 (1 - 11 BSP parallel) Rp 1 (1 - 11 BSP parallel)
Figure 5
PN 97999-801