Manitowoc National Crane NBT40-1 Series User Manual

6-6 3-29-2018 Control # 610-00
SET-UP NBT40-1 SERIES OPERATOR MANUAL
ROPE INSTALLATION-HOIST
Synthetic Rope
For detailed information concerning synthetic hoist rope,
refer to K100™ Synthetic Crane Hoist Line Manual P/N
9828100734 available by contacting Manitowoc Crane Care.
Wire Rope
NOTE: The wire rope should preferably be straightened
before installation on the hoist drum.
Install wire rope on the hoist drum in accordance with the
following procedure.
1. Position the rope over the boom nose sheave and route
to the hoist drum.
2. Position the hoist drum with the rope anchor slot on top.
3. Insert the rope through the slot and position around the
anchor wedge (1) Figure 6-2.
NOTE: The end of the rope should be even with the bottom
of the slot for the anchor wedge.
4. Position the anchor wedge in the drum slot; pull firmly on
the free end (2) of the rope to secure the wedge.
NOTE: If the wedge does not seat securely in the slot,
carefully tap (3) the top of the wedge with a mallet.
5. Slowly rotate the drum, ensuring the first layer of rope is
evenly wound onto the drum.
6. Start winding the rope onto the hoist drum. Maintain
about 250 kg (500 pounds) of tension on the rope.
7. Keep the rope wraps tight against each other when the
first half of the bare hoist is filling. The second half of the
hoist should wrap tightly because the fleet angle of the
rope tends to pull the rope to the center of the drum thus
wrapping tightly.
8. Continue winding the rope on the second, third and
fourth layer of the hoist. Keep the rope paying in straight
to the boom to avoid side loading the boom. The
preceding layers will wrap smoothly guided by the first
layer wrapping.
9. Install the remainder of the rope, as applicable.
10. Attach the wedge socket to the free end of the rope as
shown in (Figure 6-5). If you are using a terminator
wedge socket, see Figure 6-4.
11. Torque the clamp on the dead end of the rope to 95 ft-lb
(128 Nm).
NOTE: The torque must be rechecked after the initial
operation of the equipment. Be sure the clamp is
attached to the dead end of the rope only.
MULTI-PART LINES
Multi-part line reeving enables greater loads to be lifted than
can be lifted with single part line. However, loads are limited
by the stability and structural integrity of the equipment. The
load must be within the limits contained in the load chart. For
detailed information concerning synthetic hoist rope, refer to
K100™ Synthetic Crane Hoist Line Manual P/N 9828100734
available by contacting Manitowoc Crane Care.
Refer to “Multiple Part Line Reeving” 10-8 for additional
information.
CAUTION
If rope is wound from the storage drum, the reel should be
rotated in the same direction as the hoist.
1
2
3
7312-4
FIGURE 6-2
8301
2
FIGURE 6-3
7196

Manitowoc National Crane NBT40-1 Series Specifications

General

Brand	Manitowoc
Model	National Crane NBT40-1 Series
Category	Construction Equipment
Language	English