How to check transmission fluid on husqvarna riding mower

This transaxle is designed with an external filter for

ease of maintenance. To ensure constant fluid quality

levels and longer life, an oil filter change interval of

every 200 hours is recommended.

The following procedure is performed with the

transaxles installed in the mower and the mower on

level ground. Apply the pump release valve for each

transaxle and set the parking brake.

1.

Remove the three ¼" filter guard screws and filter

guard. Clean any loose debris from around the

perimeter of the filter. See illustration.

2.

Place an oil drain pan (12" or more diameter and

8 qt. capacity is optimal) beneath the oil filter.

Remove the oil filter from the transaxle.

Drain old oil filters of all free-flowing oil prior

to disposal. Place used oil in appropriate

containers and dispose of it in accordance

with laws in your area.

3.

After the oil has drained, wipe the filter base

surface and apply a film of new oil to the gasket of

the replacement filter.

4.

Install the new filter by hand, turning it three-

quarters to one full turn after the filter gasket

contacts the filter base surface.

5.

Reinstall the filter guard. Torque screws to

65 in/lbs. each.

6.

Repeat steps on the opposite side.

7.

Drain old oil filters of all free flowing oil prior to

disposal. Place used oil in appropriate containers

and dispose of it in accordance with laws in your

area.

8.

Remove the top port plug (see illustration) from

the left side and right side of the transaxles prior

to filling with oil. This will allow the transaxles to

vent during oil fill.

9.

Remove the cap from the transaxles' expansion

tank located on the vehicle frame.

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lUbRICaTION

10.

Fill with 20W50 motor oil until oil just appears

at the bottom of each transaxles' top port

(approximately 2 quarts per transaxle, 4 quarts

total). Install the top port lug into each transaxle

as the oil level reaches the port.

11.

Install and torque the top port plugs to 180 in./lbs.

12.

Continue to fill the transaxles through the

expansion tank until the "Full Cold" line is reached

(this will take approximately 23 additional ounces).

13.

Reinstall the expansion tank cap by hand. Be

careful to not overtighten.

14.

Proceed to the purge procedure.

1.

Filter guard

2.

Transaxle filter

3.

Top port plug

ZT-3400 filter change

3

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8019-010

•

Run the engine warm, manipulate the servo steering, and

then check that there are no leaks around the oil filter seal.

•

Check the oil level in the transmission, top up if necessary.

The oil filter holds 0.3 litres of oil.

Check the oil level in the

transmission

•

Use the oil dipstick to check that there is oil in the

transmission.

•

The oil level should be between the markings on the

dipstick.

•

Refill as required with fully synthetic 10W/50 API SM oil or

better

Checking the engine's oil level.

Check the oil level in the engine when the Rider stands

horizontal with the engine switched off. Do not check the oil

with the engine running.

•

Open the engine cover.

•

Loosen the dipstick, pull it up and wipe it off.

•

Now insert the dipstick again, without tightening it.

•

Pull the dipstick out again and read the oil level.

Maintenance

The oil level should be between the markings on the dipstick.

If the level is approaching the ADD mark, top up the oil to the

FULL mark on the dipstick.

The oil is topped up through the hole the dipstick sits in.

•

Tighten the dipstick correctly before starting the engine.

•

Start and run the engine at idling speed for approx. 30

seconds.

•

Turn off the motor.

•

Wait 30 seconds and check the oil level.

•

If necessary fill so that the oil comes up to the FULL mark

on the dipstick.

The following oil classes are recommended:

•

API class SH or better

Choose an oil with viscosity according to the temperature

ranges in the figure:

Do not mix different types of oil.

Caution when using oils such as 5W-20, 10W-30 and 10W-40

the engine's oil consumption increases. If these oils must be

used, check the oil level frequently.

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English

The hydrostatic transmission in your lawn tractor requires servicing that includes draining the old hydrostatic oil, changing the filter and adding new hydrostatic oil. Hydrostatic transmissions consist of a hydraulic pump and motor that is generally belt-driven from the lawn tractor engine to propel the lawn tractor forward and backward by a foot controlled pedal or hand lever. The hydrostatic transmission oil fill reservoir is generally located under the lawn tractor seat, but some model lawn tractors have two transmission oil fill reservoirs.

1. 1.

   Park the lawn tractor on a flat, level working surface and allow the engine an transmission to fully cool before filling the transmission. Set the lawn tractor park brake to prevent the lawn tractor from shifting or rolling while working.

2. 2.

   Slide an oil-catch drain pan directly under the hydrostatic transmission oil drain plug to catch the old transmission oil. The transmission oil drain plug is generally located on the side of the transmission towards the bottom. Some lawn tractor make and model hydrostatic transmissions may have one or more transmission oil drain plugs, one for the hydrostatic transmission side the other for the differential gear side.

3. 3.

   Clean dirt and debris from around the hydrostatic transmission oil reservoir cap with a clean shop towel to prevent the hydrostatic transmission and the transmission oiling system from contamination. Some hydrostatic transmissions have more than one transmission oil reservoir located under the lawn tractor seat: one that fills the hydrostatic transmission side and the other fills the differential gear side. Both the differential and hydrostatic transmission are connected by an internal cavity.

4. 4.

   Loosen the hydrostatic transmission oil reservoir cap by hand to allow the transmission oil to drain. A loose cap allows air to enter the oiling system, eliminating air vacuum and providing better oil flow drainage.

5. 5.

   Unscrew the hydrostatic transmission oil drain plugs with a socket wrench, and allow the transmission oil to fully drain.

6. 6.

   Screw the transmission oil drain plugs into the transmission. Torque the transmission oil drain plugs with a socket and torque wrench. Refer to your lawn tractor manufacturer's owner operator's manual for specific transmission oil drain plug torque specifications.

7. 7.

   Slide the transmission oil drain pan directly under the hydrostatic transmission oil filter. Some make and model hydrostatic transmissions are equipped with an transmission oil filter to clean the transmission oil, lengthening the transmission oil life.

8. 8.

   Unscrew the hydrostatic transmission oil filter from the transmission oil filter housing with an oil filter wrench. Slide the oil filter wrench onto the oil filter. Turn the oil filter counterclockwise to unscrew the transmission oil filter from the oil filter housing.

9. 9.

   Apply a light coat of clean hydrostatic transmission oil to the new transmission oil filter seal with your finger. Screw the new oil filter onto the oil filter housing by hand. Finish tightening the transmission oil filter with the oil filter wrench. Slide the transmission oil drain pan from under the transmission oil filter.

10. 10.

    Fill the hydrostatic transmission oil filter reservoirs with new hydrostatic transmission oil. Pour the transmission oil into the reservoirs by hand. Fill the oil reservoir to the full line that is embossed on the side of the reservoir tank.

11. 11.

    Screw the transmission oil reservoir fill caps onto the reservoir, and tighten the caps by hand. Start the lawn tractor engine. Check for transmission oil leaks around the transmission oil drain plugs and transmission filter housing. Drive the tractor in forward and reverse several times to check for proper transmission operation.

12. 12.

    Park the lawn tractor an a flat, level surface. Stop the lawn tractor engine and check the hydrostatic transmission oil level. Add additional transmission oil if necessary, bringing the oil level up to the full line on the transmission oil reservoir.

    Things You Will Need

    • Oil catch drain pan

    • Clean shop towel

    • Socket wrench

    • Socket

    • Torque wrench

    • Oil filter wrench

    • Hydrostatic transmission oil

    • Hydrostatic transmission oil filter

    Tip

    Always check the hydrostatic transmission oil level when the engine and transmission are cool. Hydrostatic transmission oil expands with heat and can give a false reading when hot.

What kind of fluid goes in a Husqvarna hydrostatic transmission?

How do you fill a hydrostatic transmission?

Do riding lawn mowers have transmission fluid?