Graco Reactor E-20 Series User Manual

Repair
312066ZAD 45
Overtemperature Switch
1. Turn main power OFF . Disconnect power
supply.
2. Relieve pressure, page 26.
3. Wait for heaters to cool.
4. Remove heater shroud.
5. Disconnect one leadwire from overtemperature
switch (308), FIG. 7. Test across switch with ohmme-
ter. Resistance must be approximately 0 ohms.
6. If switch fails test, remove wires and screws. Dis-
card failed switch. Apply thermal compound
110009, install new switch in same location on
housing (301), and secure with screws (311).
Reconnect wires.
Heated Hose
Check Hose Power Connectors
1. Turn main power OFF . Disconnect power
supply.
2. Relieve pressure, page 26.
3. Disconnect power wire har ness from terminal block
(TB).
4. Use an ohmmeter to check for continuity between
the two terminals (C, E) on the terminal block.
5. If the hose fails the test, re-test at each length of
hose, including whip hose, until the failure is identi-
fied.
6. Disconnect power wires from power splice connec-
tors (12).
7. Use an ohmmeter to check for continuity between
the two connectors (12) at (z).
8. If the hose fails the test, re-test at each length of
hose, including whip hose, until the failure is identi-
fied.
If wires need replacement, disconnect from tem-
perature control board. See TABLE 5, page 40 and
FIG. 5, page 40.
Refer to the heated hose manual 309572 for hose
replacement parts.
Whip hose must be connected.
For proportioners with a termination box (TB), fol-
low steps3-5.Forproportioners with electrical
splice connectors (12), follow steps 6 - 8.
7%
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&
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12
3
4
z

Graco Reactor E-20 Series Specifications

General

Brand	Graco
Model	Reactor E-20 Series
Category	Paint Sprayer
Language	English