FIGURE 21. Reeving 10 Ton Hoists
Mount hoist in a vertical position. Operate in the
hoisting direction until the remaining load end
of chain is approximately 20 feet long. Reeve
load end of chain as shown in Figure 21 in the
following sequence.
1. Down around the lower hook block sheave.
2. Up around the hoist hanger sheave.
3. Down around the second hook block sheave.
4. Up around the second hoist hanger sheave.
5. Down to the lower hook block.
Secure end of chain to the hook block with the
dead end pin. The first link around the hook block
sheaves must lay flat and the first link around the
hoist hanger sheaves must stand on edge.
Cutting Chains
Hoistaloy
®
load chain is hardened for wear
resistance and is difficult to cut. However, the
following methods are recommended when
cutting a length of new chain from stock or cutting
off a length of worn chain.
FIGURE 22. Cutting Chain by Nicking
(1) Use a grinder and nick the link on both sides
(see Figure 22), then secure the link in a vise
and break off with a hammer.
(2) Use a 7 inch minimum diameter by 1/8 thick
abrasive wheel (of type recommended by wheel
supplier) that will clear adjacent links.
(3) Chain may also be cut using a bolt cutter (see
Figure 23) similar to the H.K. Porter No. 0590MTC
with special cutter jaws for cutting hardened
chain (1 inch long cutting edge).
FIGURE 23. Cutting Chain with a Bolt Cutter
Cutting chain can produce flying particle.
To Avoid Injury:
•
Wear eye protection.
• Provide a shield, such as a heavy rag, over the chain
to prevent flying particles.
TESTING
Prior to initial use, all altered or repaired hoists or used
hoists that have not been operated for the previous 12
months shall be tested by the user for proper opera-
tion.
Test the unit first in the unloaded state and then with
a light load of 50 pounds times the number load sup-
porting parts of load chain to be sure it operates prop-
erly and the brake holds the load when the hand chain
is released; then test with a load of
*
125% of rated
capacity by or under the direction of an appointed per-
son and a written report prepared for record purposes.
After this test, the function of the Load Limiter is to be
tested (see Table 3, page 9).
*
If load limiter prevents lifting of a load of 125% of rated capacity, reduce load
to rated capacity.
NOTE: For additional information on inspection
and testing, refer to the current issue of ASME
B30.16 “Overhead Hoists” obtainable from ASME
Order Department, 22 Law Drive, Box 2300,
Fairfield, NJ 07007-2300, U.S.A.
Yale
13
WARNING
!
For more information contact: Sievert Crane and Hoist, (708) 771-1600, parts@sievertelectric.com, www.sievertcrane.com
