Manitowoc National Crane NC1400H - Hoist Brake Oil; Hoist Gearbox Oil

LUBRICATION 1400H OPERATOR AND SERVICE MANUAL
4-8 Published 10-30-2014 Control # 040-09
Hoist Brake Oil
Check Hoist Brake Oil
To check the hoist brake oil, remove the inspection plug
(Figure 4-2) and visually inspect the oil level. The fluid
should be visible within the bottom of the inspection hole. If
more fluid is needed, add through the brake oil vent and fill
plug hole.
Drain /Add New Hoist Brake Oil
To drain and add new oil, remove the drain plug (Figure 4-2),
inspection plug and vent plug and drain the brake oil.
Reinstall drain plug and add fluid at the brake oil vent hole
until oil is at the top level of the inspection hole. Install the
inspection plug and the oil vent and fill plug. See“Lubrication”
on page 3.
NOTE: Brake lubricants are satisfactory for operation in
temperatures from -23° C to 66° C
(-10° F to +150° F). For operation outside this
range, contact Manitowoc Crane Care for
recommendations.
.
Hoist Gearbox Oil
Check hoist gearbox oil level:
• Rotate the drum until the oil fill/level plug (Figure 4-3) is
visible in the inspection hole.
• Remove the fill/level plug and visually inspect the oil
level. The oil should be level with the bottom of the
inspection hole. Add oil as required and reinstall oil fill/
level plug.
• To drain and add new oil, remove the vent plug
(Figure 4-3) and then screw a 1” pipe into the drain plug
hole to allow the oil to drain. Remove the drain plug with
a hex head socket and drain hydraulic oil. Remove the
1” drain pipe and install drain plug.
Fill hoist gearbox with oil.
• To fill with oil, rotate the drum so the oil fill/level port
(Figure 4-3) is visible through the upper hole. Install a 1”
pipe with elbow into the fill hole to assist in adding oil.
Remove oil fill/level plug with a hex socket and fill gear
box with gear lube oil. See“Lubrication” on page 3.
NOTE: Hoist gear lubricants are satisfactory for operation
in temperatures from -23° C to 66° C (-10° F to
+150° F). For operation outside this range, contact
Manitowoc Crane Care for recommendations.
DANGER
Do not, under any circumstances, work at an elevated
height without using proper fall protection as required by
local, state or federal regulations.
FIGURE 4-1
8352-2
!
DANGER
Do not use EP type gear lubes in the brake section. This
may prevent proper operation and cause the load to fall
resulting in serious injury or death.
!
FIGURE 4-2
7142
Brake Oil Vent
and Fill Plug
Oil Brake
Drain Plug
Inspection
Plug
Reference Only