Manitowoc National Crane NBT50 Series, Руководство оператора

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LUBRICATION PROCEDURE AND CHARTS OPERATOR MANUAL NBT50
5-8
Published 03-23-2018 Control # 243-14
.
Hoist Gearbox Oil
Check hoist gearbox oil level:
• Rotate the drum until the oil fill/level plug (1, Figure 5-4)
is visible in the inspection hole.
• Remove the fill/level plug (1) and visually inspect the oil
level. The oil should be level with the bottom of the
inspection hole. If more oil is needed, add and reinstall
fill/level plug.
• To drain and add new oil, remove the vent plug (3,
Figure 5-4). Remove the drain plug (2) with a hex head
socket and then screw a 1” pipe into the drain plug hole
(2) to allow the oil to drain. Drain hydraulic oil. Remove
the 1” drain pipe and install drain plug (2).
Fill hoist gearbox with oil.
• To fill with oil, rotate the drum so the fill/level port (1,
Figure 5-4) is visible through the upper hole. Install a 1”
pipe with elbow into the fill hole (1) to assist in adding oil.
Remove fill/level plug with a hex socket and fill gear box
with 3.3 l (3.50 qt) of gear lube oil. See
Lubrication
Points , page 5-3.
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.
• .
Swing Gearbox and Brake Oil
Check Swing Gearbox oil level:
The oil in the gearbox and brake sections is recommended
to be changed after first 50 hours of operation and every
1000 hours or 6 months of usage. Gearbox oil is drained by
removing the drain plug and vent (See
Figure 5-3).
1. Examine the used oil for signs of significant metal
deposits and then dispose of it in a proper manner.
2. Replace the drain plug.
3. Fill the swing gearbox with the appropriate amount and
type of oil and then replace plug and vent.
See
Lubrication Points , page 5-3 of this manual.
Gearbox oil level inspection is achieved by removing the
gearbox fill/vent plug and visually inspecting the oil level.
Maximum oil level is to be 1” below the port for this gearbox
with 3.3 l (3.50 qt) of gear lube oil.
Gearbox lubricants are satisfactory for standard operation in
temperatures from -23° C to 82° C (-10° F to +180° F). For
operation outside this range, contact Manitowoc Crane Care
for recommendations.
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 5-3 7462-21
1
2
3
FIGURE 5-4
1
2
3
8640-1