Instruction Manual

Caterpillar: Non-Confidential
Replace the Engine Oil Filter
1. Clean the peripheral region and the
filter-mounting base.
2. Remove the oil filter with the belt
wrench.
3. Clean the contact surface of the
mounting base gasket with the clean cloth.
If the used O-ring sticks on the mounting
base, remove it.
4. Install a new O-ring.
5. Install the oil filter on the mounting
base, tighten the oil filter by hand till gasket
surface just contact mounting base, fasten
again the oil filter to the specified position
with a belt wrench.
Attention: Tightening too much can
damage the thread or the sealing of the oil
filter.
Transmission
Transmission Oil
Check Oil Level
Transmission filling port is located inside
the rear frame left side plate. Examine
transmission oil level routinely according to
the regulations in order to guarantee the oil
quantity. Use the oil dipstick on filler cap of
transmission to check the oil level (oil level
should be on the middle of oil dipstick
scale of transmission when the machine is
running.)
Use following steps to check
transmission oil level:
1. Check the cold oil level before starting
cold machines. The purpose for that is to
have the enough oil when the machine
starts. It is more important when the WL is
parked for a long time.
2. The level should be on the upper
position of the oil dipstick before starting
the engine. If the level is on the lower
position of the oil dipstick, add the enough
oil in order to start the machine.
3. Park the machine on the flat field. The
transmission control knob should be in the
neutral position. Engage the parking brake.
Mount the lock pin of frame to prevent the
machine from moving and rotating. Run
the engine at idle speed.
4. Start and run the engine for 5 minutes.
The transmission oil level should be near
the middle position of oil the dipstick. If the
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.
Attention: High or low transmission oil
level may damage transmission. Keep the
transmission oil level in the correct position.
Attention: Pay attention to the cleanliness
when checking transmission oil level and
replacing the transmission oil. Avoid dirt
from entering into the transmission so it
doesn’t damage it.
Replacing Transmission Oil
On one side, the transmission oil is
used as a service fluid for the hydraulic
torque converter of the transmission
hydraulic system. On the other side, it is
used for cooling and lubricating the torque
converter and transmission components.
So the transmission oil type should match
the requirement. Replace the transmission
oil according to the specified oil change
intervals. Otherwise, the service life of
transmission will be shortened.