Yale BATTERY STAR Notice D'instructions page 14

4. Load chains must be inspected for mechanical damage every
three months or after 200 hours of operation. Particular operating
conditions may require shorter inspection intervals.
Visual check: Make sure that there are no cracks, deformations,
or bends along the entire length of the chain.
If the original nominal thickness "D" of the most worn link has
been reduced by more than 10%, or if the chain has elongated
by more than 5% over one pitch "C" or by more than 2% over
11 pitches (11 x "C"), replace the round steel chain.
Nominal values are shown in the following table. Replace the
load chain if one of the limit values is exceeded.
NOTE Nominal pitch over 11 links is 209.5 mm. However,
comparing the pitch of worn sections to unworn sections
is considered best practice and recommended by the
manufacturer.
Figure 9. Chain Wear Areas
A Flat lay marks
B Upstanding link mark
1 Flat lay link
2 Upstanding link
Figure 10. Chain Dimensions
P Nominal pitch
Table 5. Chain Dimensions
P
19.1 mm
Figure 11. Gaging Load Chain Wear
A
Vernier caliper
B Measure 11 pitches
BatteryStar
TM
3 Chain guide marks
4 Interlink marks
5 Wear areas
D Nominal wire diameter
D
6.3 mm
C
One pitch
Figure 12. Chain Embossing
A Front
B
Back
1 CMUSA "T"
2
Clock Number (3 Digits)
Use only original Grade T load chains and original spare parts from
the manufacturer. Use of other chain and parts may be dangerous
and voids factory warranty.
NOTE Do not use replaced chain for other purposes such as
lifting or pulling. Load chain may break suddenly without visual
deformation. For this reason, cut replaced chain into short
lengths to prevent use after disposal.
Use of commercial or other manufacturer's chain,
and parts to repair hoists may cause load loss.
TO AVOID INJURY:
Use only manufacturer-supplied replacement load
chain and parts. Chain and parts may look similar, but
manufacturer chain and parts are made of specific
material, or processed to achieve specific properties.
REMOVAL AND INSTALLATION OF LOAD CHAIN
Improper installation (reeving) of the
load chain can result in a dropped load.
TO AVOID INJURY/DAMAGE:
Verify use of proper size and type of hoist load chain for
specific hoist.
Install load chain properly as indicated below.
The first method is recommended when replacing severely worn load
chain and requires disassembling the hoist. Method two does not
require hoist disassembly.
NOTE When replacing the chain, it is crucial that the chain is
oriented with the welds on the upstanding links AWAY from the
liftwheel.
Method #1
a) Remove battery from the hoist.
b) Detach loose end chain stop and lower hook block from the
chain.
14
3 CMUSA
4
Trace Code (3 Digits)
5 Julian Date (3 Digits)
WARNING
WARNING
P/N: 192097707YLEM June 2024