Manitowoc National Crane NBT40 Series, Service Manual

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HOIST NBT40 SERVICE MANUAL
5-6
Published 8-01-2017 Control # 287-11
Installation
To install the DRI, use the following procedure:
1. Insert the DRI into the drum. Rotate the DRI (1,
Figure 5-7) so that the DRI shaft (2) engages the drive
inside the drum.
2. Push the DRI into the drum so that the notch is lined up
with the breather (3, Figure 5-6).
3. Secure the DRI with the retaining screws (2, Figure 5-6).
4. Loosen the set screw (1, Figure 5-8) on the side of the
DRI flange.
5. Using the spanner wrench holes (2, Figure 5-8) rotate
the DRI so that the connector (3) is pointed down.
6. Tighten the set screw (1, Figure 5-8) after the DRI is
positioned as desired.
7. Plug in the DRI cable and tighten the collar to secure the
connector.
Programming the Minimum Wrap Indicator
T h e m i n i m u m w r a p i n d i c a t o r ( M W I ) n e e d s t o b e
programmed to alert the operator when the cable is down to
the third wrap of wire rope or eight wraps of synthetic hoist
rope. To program the MWI you need to:
1. Run the hoist to the first set point, third wrap of wire rope
or eighth wrap of synthetic rope. This deactivates the
alarm output.
2. Remove power from the MWI by disconnecting the DRI
cable (2, Figure 5-9).
3. Remove the sealed HMS programming button cover
screw (1, Figure 5-9) on the DRI.
FIGURE 5-7
2
1
8640-1
8640-2
FIGURE 5-8
1
2
3
7640-4
Reference Only