A/T Cooler Flushing Instructions
Group: TRANSAXLENumber: 94-40-003
Date: MARCH, 1994
Model: ALL
Subject:
J39463 AUTOMATIC TRANSAXLE COOLER FLUSHER INSTRUCTIONS
This TSB updates 92-40-003 to include all regions and updated procedures.
The J39463 is used to remove contaminants from transaxle coolers and cooler pipes which may be present due to a transaxle malfunction or damage. The flusher will connect to all Hyundai vehicles. It utilizes the flow of tap water combined with Kent-Moore flushing fluid (see below) and shop air to lift and force metal chips or clutch material out of the cooler and lines so it will not be introduced into the replaced or repaired transaxle.
UNIQUE FEATURES:
Regular shop air. as high as 120 PSI, used intermittently throughout the procedure creates a surge of water/cleaner through the system to dislodge foreign materials
OTHER FEATURES:
^ Chrome-plated brass tank.
^ Check valves to protect air and water supply.
^ Discharge hose assembly.
^ On-off valves for air and water flow.
^ One gallon of J35944-20 flushing fluid (enough for approximately six flushing operations).
^ Complete operating instructions.
COOLER FLUSHING FLUID:
The flushing fluid is a concentrated blend of detergents which cut transaxle fluid to lift contaminants, along with silicates to aid in rinsing and protecting soft metals, such as brass and aluminum. Each flushing operation requires 21 ounces of fluid. Flushing fluid is supplied in one gallon plastic bottles (J35944-20) or 6 gallon containers - J35944-CSE
CAUTION:
J35944-20 flushing fluid in its concentrated form can be corrosive to car paint, shop equipment, etc. Please exercise extreme caution when working with this solution.
WARNING!
To prevent injury to face and eyes, always wear safety glasses or a face shield when using the transaxle flusher. Eye and skin contact, flush with water immediately.
NOTE:
Pull trigger to ensure orifice if not clogged and fluid is dispensing properly before proceeding.
NOTE:
The following procedures should be performed before reinstalling the transaxle.
1. Check the tool and hoses for wear or cracks before using. If found, replace before using.
2. Using the measuring cup, fill the tank with 21 ounces (approximately 21
/3 full) of J35944-20 biodegradable flushing fluid. Do not substitute any other fluid. Follow the handling procedure on the fluid container.
3. Secure the filler cap and pressurize the tank with shop air between 80-120 PSI.
NOTE:
Pull trigger to ensure orifice is not clogged and fluid is dispensing properly before proceeding.
NOTE:
The air line should be equipped with a water trap to ensure a dry air system.
4. Hang the tool under the vehicle.
5. Attach the discharge hose of the tank to the return line of the transaxle cooler using a hose damp. (Refer to Fig. A to help identify cooler line hoses).
6. Connect the drain hose to the inlet line of the transaxle cooler using a hose clamp. (See Fig. B)
IMPORTANT:
Securely clamp the opposite end of the drain hose to a bucket or floor drain.
7. With the water and air valves off (See Fig. C), attach the water and air supply to the flusher (use hot water, if available).
8. Turn on the flusher water valve so water will flow through the oil cooler for 10 seconds.
NOTE:
If water does not flow through the oil cooler, it is completely plugged. It cannot be flushed and must be replaced.
9. Depress the trigger to mix the flushing fluid into the water flow. Use the wire clip to hold the trigger down. (See Fig. D)
10. While flushing with the water and flushing fluid for 2 minutes, turn the air valve on for 5 seconds every 15-20 seconds, to create a surging action. (Air pressure 120 PSI maximum)
11. Turn the water valve off, release the trigger, and reverse the hoses to the cooler to flush the opposite direction. Repeat steps 8 through 10.
12. Release the trigger and allow water only to rinse the cooler for one minute.
13. Turn the water valve off and turn off the water supply.
14. Turn the air valve on to dry the system for two minutes or until no moisture is visible leaving the drain hose.
IMPORTANT:
Residual moisture in the oil cooler or pipes can damage the transaxle.
15. Remove the flusher from the cooler line. Attach the drain hose to an oil container.
16. Install the transaxle and leave the drain hose attached to the cooler line.
17. Fill the transaxle with ATF. With the transaxle in park, run the engine for 30 seconds or until approximately 1 quart of ATF is discharged.
18. Remove the drain hose and reconnect the cooler return hose to the transaxle. Refill the transaxle with ATF to the proper level.
TOOL MAINTENANCE:
1. Empty and rinse after each use. Fill the can with water and pressurize the can. Flush the discharge line to ensure that the unit is clean.
2. If the discharge liquid does not foam, the orifice may be blocked.
3. To clean, disconnect the plumbing from the tank at the large coupling nut.
4. Remove the in-line filter from the discharge side and clean if necessary.
5. The fluid orifice is located behind the filter. Clear it with the pick stored in the bottom of the tank or blow with air. Securely re-assemble all parts.
WARRANTY INFORMATION