Special Tools
• | GE 41447 R-134A A/C Tracer Dye Box of 24
|
• | BO 42220 Universal 12V Leak Detection Lamp
|
• | 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.
Note: Inspect and lubricate
GE 45268 adapter kit
fitting O-rings. Refer to
O-Ring Replacement.
- Install both
GE 45268-9 fitting O-ring
onto
GE 45268-10 adapter
.
- Install
GE 45268-8 fitting O-ring
onto suction side of
GE 45268-10 adapter
.
- Install
GE 45268-7 fitting O-ring
onto discharge side of
GE 45268-10 adapter
.
Reverse Flushing Setup
Note: Reverse flow refrigerant flush is recommended for desiccant bag failure. Replace condenser/receiver dehydrator assembly when A/C flush is complete and perform the following procedure:
Note: Inspect and lubricate
GE 45268 adapter kit
fitting O-rings. Refer to
O-Ring Replacement.
- Install both
GE 45268-9 fitting O-ring
onto
GE 45268-10 adapter
.
- Install
GE 45268-8 fitting O-ring
onto suction side of
GE 45268-10 adapter
.
- Install
GE 45268-7 fitting O-ring
onto discharge side of
GE 45268-10 adapter
.
Flush Procedure
Note: Warmer engine or ambient temperatures decreases refrigerant recovery time during the A/C flush procedure.
- Recover the refrigerant. Refer to
Refrigerant Recovery and Recharging.
- Remove the thermal expansion valve (TXV). Refer to
Air Conditioning Evaporator Thermal Expansion Valve Replacement.
- Install the TXV stud onto
GE 45268-115 adapter
.
- Install new sealing washers onto evaporator core. Refer to
O-Ring Replacement.
- Install
GE 45268-115 adapter
in place of the TXV.
Caution: Refer to Fastener Caution in the Preface section.
- Install the TXV mounting bolts and tighten to
XX N·m(XX lb in).
- Install new washers onto liquid line and suction hose. Refer to
Sealing Washer Replacement.
- Connect liquid line and suction hose to
GE 45268-115 adapter
.
- Install the TXV block fitting nut and tighten to
XX N·m(XX lb in).
- Remove the A/C compressor. Refer to
Air Conditioning Compressor Replacement.
- Remove the A/C refrigerant filter (1). Refer to
Air Conditioning (AC) Refrigerant Filter Replacement.
Note: The filter inside
GE 45628-1 adapter
is serviceable. Remove and discard check valve from the filter.
- Service the filter before each flush.
Note: Assure that suction and discharge ports on J 45268-10 correspond to suction and discharge ports on compressor hose assembly.
- Install new sealing washers onto A/C compressor and condenser hose. Refer to
Sealing Washer Replacement. Assure that suction and discharge ports on
GE 45268-10 adapter
correspond to suction and discharge ports on A/C compressor to condenser hose.
- Install
GE 45268-10 filter adapter
to the A/C compressor to condenser hose.
- Connect
GE 45268-1 filter
to
J 45268-7 adapter
.
- Connect blue hose from A/C filling device to
GE 45268 adapter
.
- Connect red hose from A/C filling device to
GE 45268 adapter
.
- Disconnect blue hose from A/C filling device to
GE 45268-1 adapter
.
- Disconnect
GE 45628-1 adapter
from
GE 45268-10 adapter
.
- Remove
GE 45268-10 adapter
from the A/C compressor to 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.
- 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
GE 41447 tracer dye
. |
Note: Flushing will remove fluorescent leak detection dye from A/C system.
- Install the A/C compressor. Refer to
Air Conditioning Compressor Replacement.
- Install new A/C refrigerant filter. Refer to
Air Conditioning (AC) Refrigerant Filter Replacement.
- Remove the TXV block fitting nut.
- Disconnect liquid line and suction line from
GE 45628-115 adapter
.
- Remove the TXV bolts retaining
GE 45628-115 adapter
.
- Remove
GE 45628-115 adapter
.
- Inspect the TXV for debris. Clean or replace as needed.
- Install the TXV. Refer to
Air Conditioning Evaporator Thermal Expansion Valve Replacement.
- Evacuate and recharge the A/C system. Refer to
Refrigerant Recovery and Recharging.
- Leak test fittings using
BO 42220 lamp
.