Kubota Z231BR-AU, Operator'S Manual

Page: 63 / 85

3. If not possible, loosen the bolt (1) and pull the
throttle lever cable sheath (2) in the direction of the
arrow until throttle arm (A) contact the choke arm
(B). And then tighten the bolt (1).
10. Replacing engine oil filter
(Z231KH-AU, Z251KH-AU)
WARNING
To avoid serious injury or death:
• Engine oil is a toxic substance. Dispose of used
oil properly. Contact your local authorities for
approved disposal methods or possible
recycling.
WARNING
To avoid serious injury or death:
• Be sure to stop the engine and remove the key
before changing the oil and the oil filter.
• Allow engine to cool down sufficiently; oil can
be hot and may cause burns.
The oil filter must be changed every 100 service hours.
Always use a genuine oil filter.
1. The drain plug is located on the starter side of the
oil pan. Clean the area around the oil drain plug and
the oil fill cap/dipstick.
2. Remove the drain plug and the oil fill cap/dipstick.
3. Allow the oil to drain and then reinstall the drain
plug.
4. Remove the old filter and wipe off the filter adapter
with a clean cloth.
5. Place a new replacement filter in a shallow pan with
the open end up. Pour new oil, of the proper type, in
through the threaded center hole. Stop pouring
when the oil reaches the bottom of the threads.
Allow a minute or 2 for the oil to be absorbed by the
filter material.
6. Apply a thin film of clean oil to the rubber gasket on
the new oil filter.
7. Install the new oil filter to the filter adapter. Hand
tighten the filter clockwise until the rubber gasket
contacts the adapter, then tighten the filter an
additional 3/4 to 1 turn.
8. Fill the engine with the proper oil to the “FULL” or
“F” mark on the dipstick. Always check the oil level
with the dipstick before adding more oil.
9. Reinstall the oil fill cap/dipstick and tighten securely.
10. Start the engine and check for oil leaks. Recheck oil
level before placing the engine into service.
Stop the engine, correct any leaks, and allow a
minute for the oil to drain down, then recheck the
level on the dipstick.
NOTE :
• To prevent extensive engine wear or
damage, always maintain the proper oil level
in the crankcase. Never operate the engine
with the oil level below the “ADD” or “L”
mark or above the “FULL” or “F” mark on
the dipstick.
(1) Engine oil filter (A) “MOUNTING SURFACE”
EVERY 400 HOURS
1. Replacing transaxle oil filter
WARNING
To avoid serious injury or death:
• Park the machine on a firm and level surface.
• Apply the parking brake.
• Be sure to stop the engine and remove the key
before changing or checking the oil.
• Allow transmission case to cool down
sufficiently; oil can be hot and may cause
burns.
1. Apply the bypass valve.
(See Hydrostatic transaxle bypass rods on page
33.)
2. Remove the hex head bolts (4), and filter guard (3).
Clean any loose debris from around the perimeter
of the oil filter (2).
3. Place an oil drain pan (12 in. or more diameter and
8 qt. capacity is optimal) beneath the oil filter.
Remove the oil filter (2) and discard it.
NOTE :
• Always replace the filter when preforming
any internal maintenance to the transaxle.
4. After the oil has drained, inspect all parts for
excessive wear or damage. Replace if necessary.
5. Wipe the filter base surface off and apply a film of
new oil to the gasket of the new replacement filter
(Hydro- Gear part number 52114).
PERIODIC SERVICE EVERY 100 HOURS
60
Z231BR-AU,Z231KH-AU,Z251BR-AU,Z251KH-AU