ARO PE03P A0S Series Manuale dell'operatore - Pagina 10

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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 "O" rings between intake manifold and fluid caps.

Check tightness of (6) 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 (169) "U" cup on (167) pilot piston.

Air Inlet 1/4 - 18 P.T.F. SAE Short

9/32" Slot

(7.1 mm)

5-9/16"

(141.3 mm)

7-29/32"

(200.2 mm)

Pump Model

PE03P-AXS-XXX-A0S

PE03P-BXS-XXX-A0S

Page 10 of 12

TROUBLE SHOOTING

DIMENSIONAL DATA

Dimensions shown are for reference only, they are shown in inches and millimeters (mm).

4-13/32"

(111.5 mm)

3/4"

(19.1 mm)

4-7/32"

(106.9 mm)

2-25/32"

(70.6 mm)

"A" Material Inlet

3/8 - 18 N.P.T.F. - 1

Rp 3/8 (3/8 - 19 BSP, parallel)

Low output volume.

Check air supply.

Check for plugged outlet hose.

For the pump to prime itself, it must be mounted in the vertical posi-

tion so that the balls will check by gravity.

Check for pump cavitation - suction pipe should be sized at least as

large as the inlet thread diameter of the pump for proper flow if high

viscosity fluids are being pumped. Suction hose must be non-col-

lapsible type, capable of pulling a high vacuum.

Check all joints on intake manifolds and suction connections. These

must be airtight.

Inspect the pump for solid objects lodged in the diaphragm chamber

or the seat area.

"B"

9-1/4"

(234.7 mm)

8-15/32"

(214.7 mm)

1-1/4"

(31.8 mm)

3/8"

(9.5 mm)

"A"

"B" Material Outlet

3/8 - 18 N.P.T.F. - 1

Rp 3/8 (3/8 - 19 BSP, parallel)

Exhaust Port 1/2 - 14 N.P.T.F. - 1

5-5/32"

(130.6 mm)

4-7/8"

(123.9 mm)

1-3/32"

(27.8 mm)

(101.6 mm)

4-3/4"

(120.7 mm)

Figure 9

PE03P-X-X-A0S (en)