The Lodestar Protector should operate for the normal
life of the hoist without service. The device has been
lubricated and calibrated at the factory for a specific model of
Lodestar hoist and is not adjustable or interchangeable with
other models. For proper overload protection be sure before
installing a protector that it is correct for the unit.
The spring washer of the Protector has been color coded at
the factory as follows:
B, B-2, E, E-2
F, F-2, H, H-2
WARNING : THE CM LODESTAR PROTECTOR IS NOT TO
BE DISASSEMBLED. The spring washer of the Protector is
under high compression and removing the snap ring holding
the clutch assembly together could allow this washer to spring
the parts out.
CLEANING AND INSPECTION
First clean the load chain with a non-acid solvent
then slack the chain and make a link-by-link inspection for
nicks, gouges, twisted links, stretching and excessive wear, in
particular, observe the bearing surface between links. If any
of these conditions exist the load chain must be replaced.
Chain should be gaged throughout its entire length and
replaced if beyond serviceable limits.
Before installing new load chain the unit must be
disassembled to allow inspection for damage or wear, and
replacement if required, of mating parts (liftwheel, chain
guides, motor and gear housings).
There is no safe substitute for CM Alloy load chain
because of size requirements and physical properties. These
chains are specially heat treated and hardened and should
always be returned to the factory for repair.
When installing new load chain or mating parts refer
to lubrication instructions for chain guides, liftwheel, lower
sheave wheel and load chain on page 16.
GAGING LOAD CHAIN WEAR
To determine if load chain should be continued in
service, check gage lengths as indicated in Figure 12. Chain
worn beyond length indicated, nicked, gouged or twisted
should be replaced before returning hoist to service. Chain
should be clean, free of twists and pulled taut before
measuring. In cases where the wear is localized and not
beyond serviceable limits, it is sometimes possible to reverse
the load chain, end for end, and allow a new section to take
the wear. Removal and installation of the load chain is
covered in subsequent paragraphs. To aid in gaging load
chain for wear, a chain gage can be obtained from the factory.
CM Alloy load chain has a hard long-wearing surface
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.
Use a 7 inch minimum diameter by 1/8 inch thick
abrasive wheel (of type recommended by wheel supplier) that
will clear adjacent links.
Use a grinder and nick the link on both sides (Figure
13A), then secure the link in a vise and break off with a
hammer (Figure 13B).
Use a bolt cutter (Figure 13C) similar to the H. K.
Porter No. 4 with special cutter jaws for cutting carburized
chain (1 inch long cutting edge).
WARNING--LINK MAY FLY WHEN CUT.
An acetylene cutting torch can be used. The flame must clear
adjacent links so as not to destroy the hardness properties.
A thru H
A-2 thru H-2
J thru RR
J-2 thru RR-2