Manitowoc MLC165-1 Service Maintenance Manual

Reference Only
Manitowoc Published 05-26-17, Control # 238-02 5-21
MLC165-1 SERVICE/MAINTENANCE MANUAL HOISTS
5
5
Drums 1 and 2 Gearbox without Free Fall Option
See Figure 5-17 for the following instructions.
NOTE To prevent harmful contaminants from entering the
gearbox, thoroughly clean components before
disconnecting or connecting them.
1. Lock out/tag out the crane.
2. Remove the plug (1) to vent the gearbox.
3. Remove the dust cap (5) from the quick-drain valve (4).
4. Place the hose from the quick-drain drainer assembly
(Figure 5-15
) into a suitable container for collecting the
drained oil: 5.5 gallons (21L) of oil is required to fill a dry
gearbox.
5. Thread the quick-drain drainer assembly all the way
onto the quick-drain valve (4). The poppet inside the
valve will open, allowing the oil to drain from the
gearbox.
6. Once the gearbox has finished draining, remove the
quick-drain drainer assembly.
7. Fasten the dust cap (5) to the quick-drain valve (4).
8. Fill the gearbox with specified oil:
MANUAL FILL PROCEDURE
a. If not already done, remove plug (1).
b. Add oil through the fill port (2) using a suitable
funnel until the oil level is halfway up the sight glass
(3). Do not overfill.
c. Install the plug (1).
POWER FILL PROCEDURE (recommended)
a. Remove the plug (1) to vent the gearbox.
b. Remove the dust cap (5) from the quick-drain valve
(4).
c. Thoroughly clean the inside of the hose for the
quick-drain drainer assembly.
d. Thread the quick-drain drainer assembly all the way
onto the quick-drain valve (4). 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 gearbox until the oil level is
halfway up the sight glass (3). Do not overfill.
g. Once the gearbox is filled, remove the quick-drain
drainer assembly.
h. Fasten the dust cap (5) to the quick-drain valve (4).
i. Install the plug (1).
9. Recheck the oil level after operating the hoist. If
necessary, add oil through the fill port (2).
10. Thoroughly clean the quick-drain drainer assembly and
store it in the parts box.
Figure 5-17. Front or Rear Non-Free Fall Drum Gearbox
Item Description
1Plug
2 Fill Port
3 Sight Glass
4 Quick-Drain Valve
1
3
5
4
2

Manitowoc MLC165-1 Specifications

General

Brand	Manitowoc
Model	MLC165-1
Category	Construction Equipment
Language	English