CM-ET Lodestar - Manual (Page 28)

CUTTING CHAIN
CM ® Load chain is hardened and it is difficult to cut. The fol-
lowing methods are recommended when cutting a length of
new chain from stock or cutting off worn chain.
1. Use a grinder and nick the link on both sides (Figure
21), then secure the link in a vise and break off with
a hammer.
2. Use a 177.8 mm (7 inches) minimum diameter by
3.175 mm (1/8 inch) thick abrasive wheel (or type
recommended by wheel supplier) that will clear adja
cent links.
3. Use a bolt cutter (Figure 22) similar to the H.K.
Porter No. 0590MTC with special cutter jaws for
cutting hardened chain (25.4mm-1 inch) long cutting
edge.
Figure 23. Cutting Chain by Nicking
Figure 24. Cutting Chain with a Bolt Cutter
NOTE: For additional information on inspection and
testing, refer to Code B30.16 “Overhead Hoists” obtaine-
able from ASME Order Department, 22 Law Drive, Box
2300, Fairfield, NJ 07007-2300, U.S.A.
The following information must accompany all
correspondence orders for replacement parts:
1. Hoist Model Number from identification plate.
2. Serial number of the hoist stamped below identification
plate.
3. Voltage, phase, Hertz from the identification plate.
4. Length of lift.
5. Key number of part from parts list.
6. Number of parts required.
7. Part name from parts list.
8. Part number from the parts list.
NOTE: When ordering replacement parts, it is
recommended that consideration be given to the
need for also ordering such items as gaskets, fasten
ers, insulators, etc. These items may be damaged or
lost during disassembly or just unfit for future use
because of deterioration from age or service.
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ORDERING INSTRUCTIONS
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Using “Commercial” or other manufacturer’s parts to repair
the CM Lodestar Hoists may cause load loss.
T TO O A AV VO OIID D IIN NJ JU UR RY Y::
Use only CM supplied replacement parts. Parts may look
alike but CM parts are made of specific materials or
processed to achieve specific properties.
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Cutting Chain Can Produce Flying Particles.
T TO O A AV VO OIID D IIN NJ JU UR RY Y::
Wear Eye Protection.
Provide A shield Over Chain to Prevent Flying Particles.
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W WA AR RN NIIN NG G
TESTING
Before using, all altered, repaired or used hoists that
have not been operated for the previous 12 months
shall be tested by the user for proper operation. First
test the unit without a load and then with a light load of
22.7 kg. (50 pounds) times the number of load support-
ing parts of load chain to be sure that the hoist oper-
ates properly and that the brake holds the load when
the control is released. Next test with a load of *125% of
rated capacity. In addition, hoists in which load sustain-
ing parts have been replaced should be tested with
*125% of rated capacity by or under the direction of an
appointed person and written report prepared for
record purposes. After this test, check that the
Protector functions. If the Protector permits lifting a
load in excess of 200% of rated metric load, it should
be replaced.
*If Protector prevents lifting of a load of 125% of rated
capacity, reduce load to rated capacity and continue
test.
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