NATIONAL CRANE Published 9-26-2018 Control # 646-02 4-13
NTC55 OPERATOR MANUAL SET-UP
INSTALLING CABLE ON THE HOIST
NOTE: The cable should preferably be straightened before
installation on the hoist drum.
Install cable on the hoist drum in accordance with the
following procedure:
1. Position the cable over the boom nose sheave and route
to the hoist drum.
2. Position the hoist drum with the cable anchor slot on top.
3. Insert the cable through the slot and position around the
anchor wedge (1) Figure 4-7.
NOTE: The end of the cable 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 cable 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.
1 Part Line 2 Part Line 3 Part Line 4 Part Line 5 Part Line 6 Part Line 7 Part Line 8 Part Line 9 Part Line 10 Part Line
Maximum
Pull
Normal
Speed
11,250 lbs
191 fpm
High Speed
5,600 Lbs
383 fpm
Maximum
Pull
Normal
Speed
22,500 Lbs
95 fpm
High Speed
11,200 Lbs
191 fpm
Maximum
Pull
Normal
Speed
33,750 Lbs
63 fpm
High Speed
16,800 Lbs
127 fpm
Maximum
Pull
Normal
Speed
45,000 Lbs
47 fpm
High Speed
22,400 Lbs
95 fpm
Maximum
Pull
Normal
Speed
56,250 Lbs
38 fpm
High Speed
28,000 Lbs
76 fpm
Maximum
Pull
Normal
Speed
67,650 Lbs
31 fpm
High Speed
33,600 Lbs
63 fpm
Maximum
Pull
Normal
Speed
78,750 Lbs
27 fpm
High Speed
39,200 Lbs
54 fpm
Maximum
Pull
Normal
Speed
90,000 Lbs
23 fpm
High Speed
44,800 Lbs
47 fpm
Maximum
Pull
Normal
Speed
100,000 Lbs
21 fpm
High Speed
50,400 Lbs
42 fpm
Maximum
Pull
Normal
Speed
110,000 Lbs
19 fpm
High Speed
56,000 Lbs
38 fpm
The hook block must be sized to the number of line parts. For example, do not use a six part line hook block on a three part line reeving. Contact
your National Crane Distributor or Manitowoc Crane Care to order the proper hook block.
CAUTION
If cable is wound from the storage drum, the reel should
be rotated in the same direction as the hoist.
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