CM Hurricane 360 Manual De Funcionamiento, Mantenimiento Y Piezas página 9

at "A", "B", "D", or "E" is less than the dimensions listed
in the chart (see Figure 3, page 4).
LO D CH IN
Chain should feed smoothly into and away from the hoist.
If chain binds, jumps or is noisy, first clean and lubricate it (See
below). If trouble persists, inspect chain and mating parts
for wear, distortion or other damage.
Chain Inspection
First clean chain with a non-caustic/non-acid type solvent and
make a link by link inspection for nicks, gouges, twisted links,
weld spatter, corrosion pits, striations (minute parallel lines),
cracks in weld areas, wear and stretching. Chain with any one
of these defects must be replaced.
Figure 4 - Chain Inspection
Slack the portion of the chain that normally passes over the lift-
wheel. Examine the interlink area for the point of maximum wear
(polishing). Measure and record the stock diameter at this point
of the link. Then measure stock diameter in the same area on the
link that does not pass over the liftwheel (use the link adjacent
to the loose end connector for this purpose). Compare these
two measurements. If the stock diameter of the worn link
is 0.010 inch, or more, less than the stock diameter of the unworn
link, the chain must be replaced.
Figure 5 - Chain Inspection
Also check chain for stretch and wear using a vernier caliper
as shown in Figure 5. Select an unused, unstretched section
of chain (usually at the loose end) and measure and record the
length over 11 chain links (pitches). Measure and record the
same length on a worn section of chain. If the result (amount
of stretch and wear) is greater than 0.145 inch, the chain must
be replaced.
Use only a "Knife-Edge" caliper to eliminate the possibility
of a false reading by not measuring full pitch length.
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Using other than CM ® supplied load chain may cause the
chain to jam in the hoist and/or allow the chain
to break and the load to drop.
TO VOID INJURY:
Due to size requirements and physical properties, use
only CM ® supplied load chain in the the CM
360 Hoist.
Worn chain can be an indication of worn hoist components.
For this reason, the hoist's chain guide, stripper and liftwheel
should be examined for wear and replaced as necessary when
replacing worn chain (See DISASSEMBLY and ASSEMBLY,
page 6).
Also, the load chain is specially heat treated and hardened
and should never be repaired.
IMPORT NT: Do not use replaced chain for other purposes
such as lifting or pulling. Load chain may break suddenly with-
out visual deformation. For this reason, cut replaced chain into
short lengths to prevent use and then dispose of it.
NOTE: The above method of inspecting load chain can also
be used to inspect the hand chain for stretch and wear.
Chain Lubrication
A small amount of lubricant will greatly increase the life of load
chain. Do not allow the chain to run dry. Keep it clean and
lubricate at regular intervals with Lubriplate
10-R (Fiske Bros. Refining Co.) or equal lubricant. Normally,
weekly lubrication and cleaning is satisfactory,
but under hot and dirty conditions, it may be necessary
to clean the chain at least once a day and lubricate it several
times between cleanings .
When lubricating the chain, apply sufficient lubricant to obtain
natural run-off and full coverage, especially in the interlink area.
Used motor oils contain known carcinogenic materials.
TO VOID INJURY:
Never use used motor oils as a chain lubricant. Only use
Lubriplate ® Bar and Chain Oil 10-R as a lubricant for the load
chain.
LUBRIC TION
Hoist normally requires no additional lubrication except when
it had been disassembled for cleaning or repairs.
IMPORT NT: Brake is designed to operate dry. Do not use
any grease or lubricant on the braking surfaces.
When lubricating parts adjacent to the brake, do not use
an excessive amount of lubricant which could seep onto
the brake surfaces.
® Hurricane
® Bar and Chain Oil
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