Repair
Install Pump
Note
Steps 1–5 apply to pump B. To reconnect
pump A, proceed to step 6.
1. Ensure locknut (G) is screwed on pump with
flat side up. Screw pump into bearing housing
(M) until pin holes align. Push pin (F) in. Pull
retaining wire clip (E) down. See Fig. 4 for view
and assembly notes.
2. Continue screwing pump into housing until fluid
outlet (D) is aligned with steel tube and top
threads are +/- 1/16 in. (2 mm) of bearing face
(N).
3. Tighten locknut (G) by hitting firmly with a
non-sparking hammer.
4. Reconnect fluid inlet (C) and outlet (D).
5. Go to step 13.
Note
Steps 6–12 apply to pump A only.
6. Ensure star-shaped locknut (G) is screwed on
pump with flat side up. Carefully twist and extend
displacement rod 2 in. (51 mm) above wet-cup.
Fig
ure 3
7. Start threading pump into bearing housing (M).
When pin holes align, insert pin. Pull retaining
wire clip down.
8. Continue threading pump into bearing housing
(M) until top threads are +/- 1/16 in. (2 mm) of
bearing face (N). Ensure that barbed fittings at
wet-cupflushportsare accessible.
9. Connect component A outlet tube loosely at
pump and at heater. Line up tube, then tighten
fittings securely.
10. Tighten star-shaped locknut (G) by hitting firmly
with a non-sparking hammer.
11. Apply thin film of TSL to barbed fittings. Using
two hands, support tubes (T) while pushing
straight onto barbed fittings. Secure each tube
with a wire tie between two barbs.
Note
Do not let tubes kink or buckle.
12. Reconnect fluid inlet (C).
13. Purge air and prime the system. See Reactor
operation manual.
Repair D
rive Housing
Removal
1. Press to stop the pumps.
2. Turn off heat zones.
3. Flush pump.
4. Press
to park the pumps in the down position.
5. Press
to deactivate the system.
6. Turn main power switch off.
333024N 59
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