Manitowoc MLC300 Service And Maintenance Manual

Reference Only
SWING SYSTEM MLC300 SERVICE/MAINTENANCE MANUAL
6-8
Published 11-22-17, Control # 257-02
Oil Change Procedure
See Figure 6-5 for the following procedure.
Change the oil when the swing gearbox is warm.
NOTE: To prevent harmful contaminants from entering the
swing gearbox, thoroughly clean components
before disconnecting or connecting them.
1. Lockout-tagout the crane.
2. Remove the fill cap/breather (1) to vent the swing
gearbox.
3. Remove the dust cap from the quick-drain valve (4).
4. Place the non-fitting hose end of the quick-drain drainer
assembly (see Figure 6-6
) into an appropriate container
for collecting the drained oil.
5. Thread the quick-drain drainer assembly all the way
onto the quick-drain valve. The poppet inside the valve
will open, allowing the oil to drain from the swing
gearbox.
6. Once the swing gearbox is drained, remove the quick-
drain drainer assembly.
7. Fasten the dust cap to the quick-drain valve.
8. Fill the swing gearbox with the specified oil by
performing one of the following procedures.
Manual Fill Procedure
a. If not already done, remove the fill cap/breather.
b. Add oil through the fill port (2) using an appropriate
funnel until the oil is at the level indicated on the
decal next to the sight gauge (3).
c. Install the fill cap/breather.
Power Fill Procedure (recommended)
a. Remove the fill cap/breather to vent the swing
gearbox.
b. Remove the dust cap from the quick-drain valve.
c. Thoroughly clean the inside of the hose for the
existing quick-drain drainer assembly or use a new
quick-drain drainer assembly for filling the gearbox.
NOTE: Additional quick-drain drainer assemblies can be
purchased from your Manitowoc Cranes dealer.
d. Thread the quick-drain drainer assembly all the way
onto the quick-drain valve. The poppet inside the
valve will open.
e. Connect the hose from the quick-drain drainer
assembly to a portable pump, either hydraulically-
powered or hand-powered.
f. Slowly pump oil into the swing gearbox until the oil is
at the level indicated on the decal next to the sight
gauge. Do not overfill.
g. Once the swing gearbox is full, remove the quick-
drain drainer assembly.
h. Fasten the dust cap to the quick-drain valve.
i. Install the fill cap/breather.
9. Adjust the oil level, as required, after operating the swing
drive.
10. Thoroughly clean the quick-drain drainer assembly and
store it in the parts box.
11. Dispose of the drained oil according to local

Manitowoc MLC300 Specifications

General

Brand	Manitowoc
Model	MLC300
Category	Construction Equipment
Language	English