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Changing Trans Axle Fluid - my machine JD x728 awd has 198 hrs -

should I change the fluid now?

In checking the rear dip stick it has apx 1/4" on it and looks clear.
 

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I just follow the service schedule in the owners manual. If due, it isn't a hard process. No need to do it early though. I don't recall off the top of my head when it is due though.
 

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Changing Trans Axle Fluid - my machine JD x728 awd has 198 hrs -

should I change the fluid now?

In checking the rear dip stick it has apx 1/4" on it and looks clear.
I'm not sure what 1/4" on the dipstick represents. Per the manual:


  • Check oil level on dipstick. Oil level should be between crosshatch marks on dipstick.
Did you change it at 50 hrs per the manual? At 198 hrs you should be coming up on the second transaxle oil/filter change.

Below is the recommended maintenance schedule from the operator's manual:

After First 8 Hours

• Change engine oil and filter.

After First 50 Hours

• Check rear wheel bolt torque.
• Change transaxle oil and filter.
• Check and tighten clamps for cooling and air intake system.
• Check and tighten hardware.

Every 100 Hours or Annually (whichever comes first)

• Change engine oil and filter.

Every 200 Hours or Annually (whichever comes first)

• Check fan belt tension.
• Check and clean battery.
• Lubricate steering spindles, axle pivot, steering cylinder, and engine driveshaft.
• Check the hydraulic full time 4-wheel drive (HFWD) oil level.
• Clean radiator and hydraulic oil cooler screens and cooling fins.
• Check tire pressure.
• Check and tighten clamps for cooling and air intake system.
• Change fuel filter.
• Change air cleaner elements.
• Replace spark plugs.

Every 200 Hours

• Change transaxle oil and filter.
• Check/adjust valve lash.

Every 400 Hours or 24 Months (whichever comes first)

• Change engine coolant.
• Test or replace radiator cap. (See your John Deere Dealer for this service.)


 

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Thanks for responding with the printed info -

I did not get a manual with my tractor - Just bought her a couple weeks ago.
You can access on-line operator's manuals for most JD equipment on their website:

John Deere Ag - New Equipment: Technical Publications - Equipment Search

You can also order hard copy and CDROM versions of the operator's manual and technical manual. The operator's manual will cover basic scheduled maintenance.
 

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Discussion Starter #6
would the manual show pictures and have 'how to ' instructions?

where would the drain plug be?

I do see the filter in front of the trans axle -
 

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would the manual show pictures and have 'how to ' instructions?

where would the drain plug be?

I do see the filter in front of the trans axle -
The manual will list the basic steps. The drain screw is in the rear of the tractor to the right of where the PTO shaft would be if you had the rear PTO option. It is just above the rear hitch plate.

Changing Transaxle Oil and Filter (Except Full Time 4-Wheel Drive (HFWD) System)

1. Park machine safely. (See Parking Safely in the SAFETY Section.)


MX13617
2. Place drain pan under drain plug (A). Remove drain plug and drain oil.
3. Install and tighten drain plug.


MX13618
4. Put drain pan under transaxle filter (B).
5. Turn filter counterclockwise with a filter wrench to remove it.
6. Put a film of clean transmission oil on gasket of new filter.
7. Install filter. Turn filter clockwise until gasket contacts the mounting surface. Tighten 2/3 to 1 turn more.
8. Slide seat fully forward.
IMPORTANT: Avoid damage! Contamination of oil could cause transmission damage or failure. Clean area around dipstick before removing.


9. Remove dipstick. Add John Deere Low Viscosity HY-GARD (J20D) transmission oil through dipstick fill opening:
• 6.6L (7.0 qt.)
10. Install and tighten dipstick.
11. Start engine and check for oil leaks around filter base and drain plug.
12. Return seat to operating position, and drive machine forward and backward a few times.
13. Stop engine. Wait a minimum of three minutes for transaxle to get cold.
14. Check oil level. Add oil as needed.

 

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Also note:

Changing HFWD System Hydraulic Oil and Filter (Transaxle and HFWD Front Axle)

NOTE: On HFWD equipped models, hydraulic fluid is shared between the transaxle and HFWD front axle. Hydraulic fluid should always be changed in both axles when filter is replaced.
1. Park machine safely. (See Parking Safely in the SAFETY Section.)
CAUTION: Avoid injury! Remove wheels safely.• Use a safe lifting device and support machine securely on jack stands.
• Block front and rear of wheel not raised to prevent machine movement.
• Wheel can be heavy or difficult to handle when removing.
2. Remove front wheels and tires.
3. Place drain pans under the transaxle drain plug, the center front axle drain plug, and the drain plug at the bottom of each front axle drive unit (left and right). The system should be drained completely, make sure that containers are of adequate size.


MX13617
4. Remove transaxle drain plug (A) and drain oil.


MX39694
5. Remove center front axle drain plug (B), and drive unit drain plugs (C) and drain oil.
6. Install and tighten all drain plugs when fluid has completely drained.


MX13618
7. Put drain pan under transaxle filter (D).
8. Turn filter counterclockwise with a filter wrench to remove it.
9. Put a film of clean transmission oil on gasket of new filter.
10. Install filter. Turn filter clockwise until gasket contacts the mounting surface. Tighten 2/3 to 1 turn more.
11. Slide seat fully forward.
12. Tilt hood forward.
IMPORTANT: Avoid damage! Contamination of oil could cause transmission damage or failure. Clean area around vent plugs and filler plug before removing.


NOTE: Follow the correct sequence when filling the HFWD system with hydraulic fluid. Fill the front axle first, fill the transaxle last.


MX39695A
13. Remove the filler plug (E) at the right side of the axle, and the vent plugs (F) at the top of each drive unit.
14. Slowly fill the front axle until the hydraulic oil level reaches the vent plug holes at each side. The axle should accept approx. 5.0L (5.3 qt) of hydraulic fluid.
15. Install the vent plugs and filler plug.
IMPORTANT: Avoid damage! Contamination of oil could cause transmission damage or failure. Clean area around dipstick before removing.




MX13616
16. Remove transaxle dipstick (G). Add John Deere Low Viscosity HY-GARD (J20D) transmission oil through dipstick fill opening:
• Approx. 6.8L (7.2 qt) or until fluid is at full level on dipstick.
17. Install and tighten dipstick.
18. Start engine and check for oil leaks around filter base and drain plug.
19. Return seat to operating position, apply brake, and cycle transmission forward and reverse three times to ensure proper circulation.
20. Stop engine. Wait a minimum of three minutes for transaxle to get cold.
21. Check oil level. Add oil as needed.

 

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Discussion Starter #10
Thank you for your reply's Gents!

Did not know its that involved - ( was thinking it was just pull a plug and add thing ):dunno:

for sure its a process to be followed to the letter I see.
 
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