Thermal Dynamics PAK Master 150XL, Руководство по обслуживанию

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REPLACEMENT PROCEDURES 5-8 Manual 0-2728
C. Pilot Resistor (R1 & R2) Replacement
NOTE
This unit has two Pilot Resistors. The replacement
instructions are the same for both.
1. Remove the Right Side Panel per Section 5.04-A.
2. Remove all wiring connections to the Pilot/Out-
put PC Board Assembly, noting the location of
each.
3. Remove two nuts securing Pilot Resistor to Pilot
Panel.
4. Remove Pilot Resistor from studs.
5. Install replacement Resistor by reversing the
above procedure.
D. Pilot Inductor (L3) Replacement
1. Remove the Right Side Panel per Section 5.04-A.
2. Remove all wire connections to the Pilot Induc-
tor, noting the location of each.
3. Remove four nuts securing Pilot Inductor to the
Pilot Panel and remove Pilot Inductor from unit.
4. Install replacement Pilot Inductor by reversing the
above steps.
E. Capacitive Discharge (CD) PC Board
Assembly Replacement
1. Remove the Right Side Panel per Section 5.04-A.
NOTES
Before removing any connection, mark each wire
with the connection designation. When reassem-
bling this makes sure the wires go to the proper
terminals.
Note the routing of wires and make sure the wires
are put back in the same place when reassembling
the unit.
2. Disconnect all the wiring connections to the CD
PC Board Assembly.
3. Remove the four screws and washers securing the
PC Board to the standoffs.
4. Install the replacement CD PC Board Assembly
by reversing the above procedure.
F. Coolant Filter Replacement
1. Remove Right Side Panel per Section 5.04-A.
2. Remove the two coolant hose connections to the
Filter Assembly.
NOTE
Some residual coolant may drain from the In-Line
Filter. It is recommended that a bucket, rag or tow-
els be placed below the hose prior to removing.
3. Remove the two elbow fittings on each side of the
Coolant Filter Assembly and remove the damaged
Coolant Filter Assembly from the bracket.
4. Clean the old thread sealer from the threads of
the elbow fittings.
5. Apply a thin coating of liquid teflon thread sealer
to the threads of the elbow fittings.
6. Place the replacement Coolant Filter Assembly in
the bracket with the arrow pointing to the left and
reinstall the two elbow fittings.
7. Reconnect the two coolant hoses to the Coolant
Filter Assembly making sure that the hose to the
Pump Assembly is on the output of the Coolant
Filter Assembly).
8. Install Right Side Panel.
G. Coolant Reservoir Replacement
CAUTION
Handle and dispose of the used coolant per recom-
mended procedures.
NOTE
The Coolant Reservoir is removed by removing the
rear panel.
1. Remove the Left and Right Side Panels per Sec-
tion 5.04-A.
2. Drain the coolant from the Coolant Reservoir as
follows:
a. Disconnect the Coolant Supply Hose input
connection at the Coolant Filter Assembly. The
hose goes from the Coolant Filter Assembly
to the bottom of the reservoir.
b. Place the end of the hose into a container to
catch the coolant as it flows from the reser-
voir.
NOTE
Do Not run the pump as the coolant will gravity
feed from the reservoir.