Heated Hose - Graco Reactor H-VR Repair And Parts Manual

Repair
Overtemperature Switch
1. Turn main power OFF
supply.
2. Relieve pressure, page 28.
3. Wait for heaters to cool.
4. Remove heater shroud.
5. Disconnect one leadwire from overtemperature
switch (408), F . 10. Test across switch with ohm-
IG
meter. 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 (401), and secure with screws (411).
Reconnect wires.
NOTE: If wires need replacement, disconnect from
temperature control board. See T
and F . 9, page 36.
IG

Heated Hose

NOTE: Refer to the heated hose manual 309572 for
hose replacement parts.
Check Hose Connectors
1. Turn main power OFF
supply.
2. Relieve pressure, page 28.
NOTE: Whip hose must be connected.
3. Disconnect hose connector (D) at Reactor, F
4. Using an ohmmeter, check between the two termi-
nals of the connector (D). There should be continu-
ity.
40
. Disconnect power
6, page 36
ABLE
. Disconnect power
. 11.
IG
5. If hose fails test, retest at each length of hose,
including whip hose, until failure is isolated.
Check FTS Cables
1. Turn main power OFF
supply.
2. Relieve pressure, page 28.
3. Disconnect FTS cable (F) at Reactor, F
F
F . 11. Heated Hose
IG
4. Test with ohmmeter between pins of cable connec-
tor.
Pins
1 to 2 approximately 35 ohms per 50 ft (15.2 m) of
hose, plus approximately 10 ohms for FTS
1 to 3
5. If cable fails test, retest at FTS, page 40.
. Disconnect power
. 11.
IG
D
ti9878a
Result
infinity
313540L