Komatsu 830E-AC Shop Manual page 85

TRANSMISSION PRESERVATION AND
STORAGE
Storage, New Transmission
(Prior to installation). New transmissions are tested
with preservative oil and drained prior to shipment.
The residual oil remaining in the transmission pro-
vides adequate protection to safely store the trans-
mission for up to one year (stored inside the
conditions of normal climate and with all shipping
plugs installed) without further treatment.
Preservation Methods. When the transmission is to
be stored or remain inactive for an extended period
(one or more years), specific preservation methods
are recommended to prevent damage due to rust,
corrosion, and organic growth in the oil. Preservation
methods are presented for storage with and without
transmission fluid.
Storage, One Year -- Without Oil
1. Drain the oil.
2. Spray two ounces (60 milliliters) of VCI #10
through the fill tube.
3. Seal all openings and the breather with mois-
ture-proof tape.
4. Coat all exposed, unpainted surfaces with pre-
servative grease such as petroleum (MIL-C-
11796, Class 2).
5. If additional storage time is required, repeat
steps (2), (3) and (4) at yearly intervals.
Storage, One Year With Oil (normally in a vehicle
chassis)
1. Drain the oil and replace the oil filter element(s).
2. Fill the transmission to operating level with a
mixture of one part VCI #10 (or equivalent) to
30 parts C-3 transmission fluid. Add 1/4 tea-
spoon of Biobor JF (or equivalent) for each 3
gallons (11 liters) of fluid in the system.
NOTE: When calculating the amount of Biobor JF
required, use the total volume of the system, not just
the quantity required to fill the transmission. Include
external lines, filters, and the cooler.
3. Run the engine for approximately five minutes
at 1500 rpm with the transmission in neutral.
4. Drive the vehicle. Make sure the transmission
shifts through all ranges. Make sure the lockup
clutch is working.
A07006
5. Continue running the engine at 1500 rpm with
the transmission in neutral until normal operat-
ing temperature is reached.
If the unit does not have a converter-out tempera-
ture gage, do not stall the converter.
6. If normal operating temperature is less than
225° F (107° C), shift the transmission to the
highest forward range and stall the con-
verter.When the converter-out temperature
reaches 225° F (107° C), stop the engine. Do
not exceed 225° F (107° C).
7. As soon as the transmission is cool enough to
touch, seal all openings and the breather with
moisture-proof tape.
8. Coat all exposed, unpainted surfaces with pre-
servative grease such as petrolatum (MIL-C-
11796, Class 2).
9. If additional storage time is required, repeat
steps (2) through (8) at yearly intervals; except,
it is not necessary to drain the transmission
each year. Just add Motorstor and Biobor Jf (or
equivalents).
Restoring Transmission to Service
1. Remove all tape from openings and the
breather.
2. Wash off all external grease with mineral spirits.
3. If the transmission is new, drain the residual
preservative oil. Refill the transmission to the
proper level with C-4 transmission fluid.
4. If the transmission was prepared for storage
without oil, drain the residual oil and replace the
oil filter elements. Refill the transmission to the
proper level with C-4 transmission fluid.
5. If the transmission was prepared for storage
with oil, it is not necessary to drain and refill the
transmission with new transmission fluid. Check
for proper fluid level. Add or drain transmission
fluid as required to obtain to proper level.
Storage Procedures A7-17