ARO PF20R-X-B Manuale dell'operatore - Pagina 8

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ARO PF20R-X-B Manuale dell'operatore
Product discharged from exhaust outlet.
Check for diaphragm rupture.
S
Check tightness of (14) diaphragm screw.
S
Air bubbles in product discharge.
Check connections of suction plumbing.
S
Check gaskets between intake manifold and inlet side fluid caps.
S
Check tightness of (14) diaphragm screw.
S
Motor blows air or stalls.
Check (176) check valve for damage or wear.
S
Check for restrictions in valve / exhaust.
S
2 - 11-1/2 N.P.T.F. - 1
(PF20X-AXX-SXX-B)
Rp 2 (2 - 11 BSP parallel)
(PF20X-BXX-SXX-B)
B
M
D
A -- 23-9/32" (591.3 mm)
B -- 24-3/4" (628.7 mm)
C -- 10-1/16" (255.6 mm)
D -- see below
l Side Discharge Ports are not available on PX20X-XSX-X-B Models.
PF20X-XCX-SXX-B
PF20X-XSX-SXX-B
Figure 4
Page 8 of 8
TROUBLE SHOOTING

DIMENSIONAL DATA

(Dimensions shown are for reference only, they are displayed in inches and millimeters (mm).
l
P
Inlet
Outlet
K
C
A
E -- 21-11/32" (541.9 mm)
F -- 12" (304.8 mm)
G -- 26-1/4" (666.8 mm)
H -- 9-1/16" (230.2 mm)
"D"
1-7/8" (47.6 mm)
2-1/2" (63.5 mm)
Low output volume, erratic flow, or no flow.
Check air supply.
S
Check for plugged outlet hose.
S
Check for kinked (restrictive) outlet material hose.
S
Check for kinked (restrictive) or collapsed inlet material hose.
S
Check for pump cavitation - suction pipe should be sized at least as
S
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-col-
lapsing type, capable of pulling a high vacuum.
Check all joints on the inlet manifolds and suction connections.
S
These must be air tight.
Inspect the pump for solid objects logged in the diaphragm chamber
S
or the seat area.
Air Inlet 3/4 - 14 N.P.T.
G
Exhaust port 1-1/2 - 11-1/2 N.P.S.M.
DIMENSIONS
J -- 10-1/16" (255.6 mm)
K -- 9/16" (14.3 mm)
L -- see below
M -- see below
"L"
2" (50.8 mm)
12-19/32" (319.9 mm)
2-3/32" (53.0 mm)
13-1/4" (336.6 mm)
E
N
F
L
Dotted lines show optional
H
67263 muffler assembly.
J
N -- 16-3/16" (410.8 mm)
P -- see below
"M"
"P"
9-7/8" (250.7 mm)
--------------
PN 97999-1113
PF20R-X-B
(en)