Swing Gearbox - jcb JS300 Service Manual

Check (Condition)
Check the general condition and operation of the Swing
gearbox as follows:
1 Prepare the machine.
Maintenance, Maintenance Positions.
2 Get access to the Swing gearbox.
Points ( T E-296)
3 Inspect the Swing gearbox casings for defects and oil
leaks. Ensure that all the casing fixings are present
and tightened to the correct torque. Ensure that the
dipstick A and oil filler port plug B (if fitted) are
installed correctly.
4 Test the operation of the Swing function in both
directions. Make sure that the Swing gearbox
operates smoothly with no abnormal noise.
Rectify Swing gearbox defects as necessary.
Check (Oil Level)
1 Prepare the machine.
Maintenance, Maintenance Positions.
2 Get access to the Swing gearbox.
Points ( T E-296)
3 Check the level oil level as follows:
a Remove the dipstick A, wipe it clean and re-fit.
b Remove the dipstick again and check that the oil
level is within the min -max range.
c If necessary, top up through filler port B.
If there is no separate filler port fitted, top up
through the dipstick port.
4 Refit the dipstick.
E-309

Swing Gearbox

Refer to Section 2,
K Service
Refer to Section 2,
K Service
9813/5100-1
Section E - Hydraulics
Routine Maintenance Procedures
A
Fig 12.
Replace (Oil)
1 Prepare the machine.
Maintenance, Maintenance Positions.
2 Get access to the Swing gearbox.
Points ( T E-296)
3 Drain the oil as follows:
a Get access to the drain plug C from below the
machine. Remove the drain plug. Allow the oil to
drain out.
b Wipe the drain plug clean. Remove contamination
such as metallic particles.
c Refit the drain plug. Make sure it is tight.
4 Fill with the specified oil through filler port B.
If there is no separate filler port fitted, top up through
the dipstick port.
Swing Gearbox
B
C
T058840-C1
Refer to Section 2,
K Service
E-309