User's Manual

Repair
332144C 41
Displacement Pump
NOTE: Use dropcloth or rags to protect Reactor and
surrounding area from spills.
1. See Before Beginning Repair, page 39.
2. Relieve pressure, page 23.
3. Close both fluid valves (V).
NOTE: Use dropcloth or rags to protect Reactor and
surrounding area from spills.
4. Open filter drain hex nut (N) on y-strainer.
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.
5. Disconnect fluid inlet (C) and swing it aside.
6. Remove intake valve by hitting ears (E) firmly,
right-to-left, with a non-sparking hammer. Unscrew
from pump. See displacement pump manual for
repair and parts.
Remove Entire Pump Assembly
7. Disconnect fluid inlet (C) and outlet (D) lines. Also
disconnect steel outlet tube (46) from heater inlet.
8. 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.
9. Install pump in reverse order of disassembly, follow-
ing all notes in F
IG . 8. Clean strainer (51). Recon-
nect fluid inlet (C) and outlet (D) lines.
10. Tighten fluid outlet fitting (D), then tighten locknut
(218) by hitting firmly with a non-sparking hammer.
11. Set function knob to Slow Recirc . Purge air and
prime. See Purge Air and Flush Fluid From
Lines, page 18.
V
ti21893a
N
F IG . 8: Displacement Pump
C
D
217
1
Flat side faces up. Tighten by hitting
firmly with non-sparking hammer.
1
Lubricate threads with ISO oil or grease.
2
2
2
2
TI7025a
218
222
51
E
ti21839a