User's Manual

Repair
3A1602G 31
Displacement Pump
NOTE: Use drop cloth or rags to protect Reactor E-8p
and surrounding area from spills.
See Before Beginning Repair, page 30. Relieve pres-
sure, page 20.
To remove intake valve only
NOTE: If pump is not generating any pressure, the
intake ball check may be stuck closed with dried mate-
rial.
If the pump is not generating pressure on the down-
stroke, intake ball check may be stuck open.
Either of these conditions can be serviced with the
pump in place.
1. Loosen nut and press the inlet tube down away from
the pump intake valve. Inspect the two o-rings (52)
for damage and replace if necessary. Move the inlet
tube (53) aside.
2. Remove intake valve by hitting ears (E) firmly
right-to-left with a non-sparking hammer. Unscrew
from pump. See manual 313123 for repair and
parts.
To remove entire pump assembly
1. Loosen nut and press the inlet tube down away from
the pump intake valve.
2. Disconnect swivel (32) from pump outlet and loosen
swivel at the fluid manifold. Turn the fluid outlet line
out of the way of the sprayer.
3. Remove pump rod cover (222). Push clip up in back
and push pin (217) out. Loosen locknut (218) by hit-
ting firmly right-to-left with a non-sparking hammer.
Unscrew pump. See manual 311076 for pump repair
and parts.
4. Install pump in reverse order of disassembly, follow-
ing all notes in F
IG. 54. Reconnect fluid inlet (C) and
outlet (D) lines.
5. Tighten fluid outlet fitting (D), then tighten locknut
(218) by hitting firmly with a non-sparking hammer.
6. Set function knob to Slow Recirc . Purge air
and prime. See page 17.
Displacement pump repair and parts infor-
mation is included in manual 311076, which
is supplied with your unit.
FIG. 52: Fluid Inlet Tube
E
52
53
ti17461a
FIG. 53: Fluid Outlet Line
FIG. 54
32
ti17462a
ti17463a
222
217
218
D
C
Flat side faces up.
Tighten by hitting firmly
with non-sparking
hammer.
1
Lubricate threads with
ISO oil or grease.
2
2
2
1
2