Flushing
Special Tools
• |
BO-42220
Universal 12V Leak Detection Lamp |
• |
GE-41447
R-134A A/C Tracer Dye Box of 24 |
• |
GE-45268 A/C
Flush Adapter Kit |
For equivalent regional tools, refer to
Special Tools .
Note: Flushing with the ACR
2000 is not intended to remove metal from the A/C system.
Flushing is intended to remove the following:
• |
Contaminated polyalkylene
glycol (PAG) oil |
• |
Desiccant, following a
desiccant bag failure |
• |
Refrigerant
contamination |
Forward Flushing Setup
|
Note: Forward flow
refrigerant flushing is recommended for contaminated refrigerant or
PAG oil.
|
1. |
Install both
GE-45268-9 fitting O-rings onto the
GE-45268-10 adapter . |
2. |
Install the
GE-45268-8 fitting O-ring onto the suction side of
the GE-45268-10 adapter . |
3. |
Install the
GE-45268-7 fitting O-ring onto the discharge side
of the GE-45268-10 adapter . |
Reverse Flushing Setup
|
Note:
• |
Reverse flow
refrigerant flush is recommended for desiccant bag failure. Replace
the condenser/receiver dehydrator assembly when the A/C flush is
complete and perform the following procedure: |
|
1. |
Install both
GE-45268-9 fitting O-rings onto the
GE-45268-10 adapter . |
2. |
Install the
GE-45268-8 fitting O-ring onto the suction side of
the GE-45268-10 adapter . |
3. |
Install the
GE-45268-7 fitting O-ring onto the discharge side
of the GE-45268-10 adapter . |
Flush Procedure
|
Note: Warmer engine
or ambient temperatures decreases refrigerant recovery time during
the A/C flush procedure.
|
3. |
Install the TXV stud onto the
GE-45268-115 adapter . |
5. |
Install the
GE-45268-115 adapter in place of the TXV using an
oversized seal washer. |
6. |
Install the TXV mounting bolts
and tighten to 15 N·m (11 lb in) .
|
8. |
Connect the liquid line and
the suction hose to the GE-45268-115 adapter using
an oversized seal washer. |
9. |
Install the TXV block fitting
nut and tighten to 19 N·m (14 lb in)
. |
|
Note: The filter
inside the GE-45268-1 adapter is serviceable.
Remove and DISCARD check valve from the filter.
|
12. |
Service the filter before each
flush. |
|
Note: Assure that the
suction and discharge ports on G-45268-10 correspond to the suction
and discharge ports on the compressor hose assembly.
|
13. |
Install new sealing washers
onto the A/C compressor and the condenser hose. Refer to
Air Conditioning O-Ring Seal Replacement . Assure that the
suction and discharge ports on the GE-45268-10
adapter correspond to the suction and the discharge ports on the
A/C compressor to the condenser hose. |
14. |
Install the
GE-45268-10 filter adapter to the A/C compressor to
the condenser hose. |
15. |
Connect the
GE-45268-1 filter to the G-45268-7
adapter . |
16. |
Connect the blue hose from the
A/C filling device to the GE-45268 adapter .
|
17. |
Connect the red hose from the
A/C filling device to the GE-45268 adapter .
|
18. |
Disconnect the blue hose from
the A/C filling device to the GE-45268-1 adapter
. |
19. |
Disconnect the
GE-45268-1 adapter from the GE-45268-10
adapter . |
20. |
Remove the
GE-45268-10 adapter from the A/C compressor to the
condenser hose. |
|
Note: Flushing will
remove all PAG oil from the A/C system. The A/C system must be
replenished with the correct amount of PAG oil.
|
21. |
If you will reinstall the
removed A/C compressor, perform the following procedure:
|
|
• |
Drain PAG oil from the A/C
compressor. Rotate compressor input shaft to assist in draining the
PAG oil from compressor. |
|
• |
Add one bottle of the
GE-41447 tracer dye . |
|
Note: Flushing will
remove fluorescent leak detection dye from A/C system.
|
24. |
Remove the TXV block fitting
nut. |
25. |
Disconnect the liquid line and
the suction line from the GE-45268-115 adapter
. |
26. |
Remove the TXV bolts retaining
GE-45268-115 adapter . |
27. |
Remove the
GE-45268-115 adapter . |
28. |
Inspect the TXV for debris.
Clean or replace as needed. |
31. |
Leak test fittings using the
BO-42220 lamp . |
|