SERVICE section 5.3
ENGINE OIL CHANGE PROCEDURE
Onan:
25 hours initial;
50 hours thereafter.
Kubota:
35 hours initial;
100 hours thereafter.
1. Run engine until engine is warm for complete
draining.
2. Remove oil drain plug (Onan).
Open drain cock (Kubota).
3. Remove oil filter and wipe filter base clean.
4. Lube filter gasket with oil and install new filter.
Tighten 1/2 turn after seal contacts base. Do
not over tighten.
5. Re-install drain plug (Onan).
Close drain cock (Kubota).
6. Add 3 U.S. Quarts (2.9 liter) engine oil for Onan
engines. Add 4 U.S. Quarts (3.8 liter) for
Kubota engines. Refer to engine manual for oil
specifications.
7. Run engine and check filter and drain plug or
cock for leaks.
8. Stop engine and refill to proper oil level.
THE USE OF ANY AIR FILTER OR OIL FILTER
OTHER THAN THOSE SPECIFIED BY THE
ENGINE MANUFACTURER MAY VOID
WARRANTY AND IS NOT RECOMMENDED.
TRANSAXLE OIL CHANGE
PROCEDURE
Change hydraulic filter after first 50 hours.
Change hydraulic oil and filter at 100 hours
initially, and annually or at 500 hour intervals
thereafter, whichever occurs first. Change oil and
filter at any time contamination is suspected.
1. It is best to drain transaxles after the tractor has
been thoroughly warm to assure maximum
drain.
2. Remove dipstick and drain plugs from
transaxles.
3. Remove hydraulic filter and wipe filter base
clean.
4. Lube filter gasket with oil and install new filter.
Tighten 3/4 turn after gasket contacts filter
base. Do not over tighten.
5. Re-install drain plugs in transaxles.
6. Add 5 quarts (4.6 liters) to the rear transaxle. Fill
front transaxle to full mark on dipstick with
approved hydraulic oil. Use only Steiner
Trans-Hydraulic Oil or Texas Refinery Corp
6440 Universal Torque Fluid.
7. Run engine, and turn steering wheel extreme
right to extreme left several times to purge all
air from the circuit.
8. Shift both transaxles to neutral (neutral detent is
halfway between LOW and HIGH) and move
the Forward -Reverse lever back and forth to
purge air from the drive circuit.
9. Re-check oil level to be sure it is in the safe
operating range.
THE USE OF ANY OIL OTHER THAN STEINER
TRANS-HYDRAULIC OIL OR TRC 6440
UNIVERSAL TORQUE FLUID MAY VOID
WARRANTY AND IS NOT RECOMMENDED.
THE USE OF ANY HYDRAULIC OIL FILTER
OTHER THAN A STEINER HYDRAULIC OIL
FILTER MAY VOID WARRANTY AND IS NOT
RECOMMENDED.
17
TRANSAXLE OIL LEVELS
After a period of time the level on the front
transaxle dipstick may show to be low even
though there are no apparent oil leaks. This
condition could be caused by a transfer of oil from
the front transaxle to the non-vented rear
transaxle replacing the air cavity in the rear
transaxle.
Before refilling front transaxle to the top mark on
the dipstick,remove the “top plug” on the rear
transaxle and allow air to enter to equalize the oil
levels in the transaxles. After oil level is stabilized,
replace the plug and refill the front transaxle as
needed.
Equalize oil levels any time an excessive amount
of oil, more than a quart (liter), needs to be added
to the front transaxle.
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