Instruction Manual

58
Caterpillar: Non-Confidential
Use following steps to replace
transmission oil:
1. Start the engine and leave it running
for a few hours to allow the dirt, metal and
sediment to float in the fluid.
2. Park the machine on a flat surface.
When the transmission control knob is in
the neutral position, engage the parking
brake. Mount the lock pin on frame to
prevent the machine moving and rotating.
3. Stop the engine, unscrew the drain
plug located at the bottom of transmission,
and drain the oil into a container.
4. Unscrew the drain plug under the
torque converter; drain the oil into a
container. Warning: The transmission oil
temperature is still high. So wear protective
equipment and operate carefully to avoid
personal injury.
5. Use a magnet to clean the iron chips
attached the drain plug and the iron chips
in the transmission.
6. Install the drain plug of transmission,
and drain plug and seals under the oil
cooler of torque converter.
7. Install the drain plug and seals under
the torque converter.
8. Unscrew the filler cap of transmission.
Fill the clean transmission oil through filling
hose. The transmission oil level should be
at the highest level.
9. Start and run the engine for 5 minutes.
Observe that the transmission oil level
should be near the middle position of oil
dipstick. If oil level is higher, drain some oil
by loosing the drain plug on the bottom of
transmission. If the oil level is lower, add
transmission oil.
10. Turn the filler cap clockwise to fasten.
Replace Transmission
Suction Screen
1. Drain the oil according to the
transmission oil replacement method.
2. Loosen the suction pan bolts and
remove the suction pan. Take out the
suction screen.
3. Install the new suction screen and
tighten the suction pan bolts.
4. Fill the oil according to the
transmission oil replacement method.
Attention: Pay attention to cover the
parking brake before replacing the
transmission oil. This will prevent the
parking brake friction discs from getting
saturated with oil, which will reduce the
braking performance.
Replace the Transmission
Filter Element
1. Clean the peripheral region and the
transmission filter-mounting base.
2. Remove the transmission filter housing
with the belt wrench, and remove the
element.
3. Clean the contact surface of the
mounting base gasket with the clean cloth,
and install a new element.
4. Install the transmission filter housing.
Attention: The transmission filter is
directional. The arrow direction should be
against the transmission pump when
installing.
Axle
Axle Oil
Check the oil level and replace the axle oil