Repair Primary Heater; Switch - Graco Reactor 2 H-30 Repair Parts

Repair
Repair Primary Primary Heater Heater
Repair Repair Primary Heater
Replace Replace Heater Replace Heater Heater Element Element Element
1. Follow Before Beginning Repair, page
2. Wait for heaters to cool.
3. Remove heater cover.
4. Disconnect heater element wires from heater
wire connector inside the electrical enclosure.
See Electrical Schematics, page
an ohmmeter.
Total
System System System Total Total
Heater Heater Heater
Wattage
Wattage Wattage
H-30 10 kW
H-30, 15 kW
H-40,
H-XP2
H-40, 20 kW
H-50,
H-XP3
5. If the RTD is on the heater element, remove
the RTD (512) to avoid damage. See
Replace RTD, page
6. Use a wrench to remove the heater element
(508). Inspect element. It should be relatively
smooth and shiny. Replace element if there is a
crusted, burnt ash-like material adhered to the
element, or if the sheath shows pitting marks.
7. Install the new heater element (508), holding the
mixer (510) so it does not block the RTD port.
Torque to 120 ft-lb (163 N•m).
8. Install the RTD (512), if removed earlier. See
Replace RTD, page
9. Reconnect the wires inside the electrical
enclosure.
Line Line Line Voltage Voltage Voltage
The heater outputs its rated wattage at 230 VAC.
Low line voltage will reduce power available and the
heater will not perform at full capacity.
60
50.
102. Test with
Element
Element Element Ohms Ohms per Ohms
element element element
2,550 18–21
2,550 18–21
2,550 18–21
61.
61.
Repair Heater Heater Overtemperature
Repair Repair Heater

Switch

Switch Switch
1. Perform Shutdown, page
2. Wait for heaters to cool.
3. Remove heater cover (#10).
4. Disconnect overtemperature switches (509) from
cable (88). Test across spade terminals with
ohmmeter.
a. If the resistance is not approximately 0 ohms,
the overtemperature switch (509) needs to
be replaced. Go to step 5.
b. If the resistance is approximately 0 ohms,
inspect cable (88) to ensure it is not cut or
open. Reconnect the overtemperature switch
(509) and cable (88). Disconnect cable from
the TCM. Test from pin 1 to 3 and 1 to 4. If
the resistance is not approximately 0, and
per per
switches are 0, replace cable in place or
original cable.
5. If the switch fails the test, remove the screws.
Discard the failed switch. Apply a thin layer of
thermal compound 110009 and install a new
switch (509) in the same location on housing
(501). Secure with screws (513) and reconnect
cables (88).
Overtemperature
Overtemperature
48.
334946H