User's Manual

Repair
30 3A1602G
Repair
Before Beginning Repair
1. Flush if possible, see page 22. If not possible, clean
all parts with solvent immediately after removal, to
prevent isocyanate from crystallizing due to mois-
ture in the atmosphere.
2. Set function knob to Stop/Park
.
3. Shut off power.
4. Relieve pressure, page 20.
Recirculation/Spray Valves
1. See Before Beginning Repair, page 30. Relieve
pressure, page 20.
2. Clean and inspect all parts for damage. Ensure that
the seat (503a) and gasket (503b) are positioned
inside each valve cartridge (503).
3. Apply PTFE pipe sealant to all tapered pipe threads
before reassembling.
4. Reassemble in reverse order, following all notes in
F
IG. 51.
Repairing this equipment requires access to parts
which may cause electric shock or other serious
injury if work is not performed properly. Have a
qualified electrician connect power and ground to
main power switch terminals, see page 11. Be sure to
shut off all power to the equipment before repairing.
FIG. 49
FIG. 50
+
-
TI17127b
I
O
I
O
O
TI17135a
FIG. 51: Recirculation/Spray Valves
Torque to 250 in-lb (28 N•m).
1
Use blue threadlocker on valve cartridge threads into
manifold.
2
Apply lubricant to mating surfaces.
3
TI17460a
505
504
503
501
502
509
510
507
506
511
508
503a
503b
1 2
4
4
515
3
3
3
3
Part of item 503.
4