Load Chain; Important; Lubrication - CM 5600 Manuel D'entretien

Check to assure the latch is not damaged or bent and that it
operates properly. It should have sufficient spring pressure to
keep it tightly against the tip of the hook and allow it to
spring back to the tip when released. If the latch does not
operate properly, replace the latch.
Replace hook if opening is greater than "C" or if the thick-
ness at "A", "B", "D", or "E" is less than the dimensions
listed in the chart (see Figure 3, page 4).

LOAD CHAIN

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
liftwheel. Examine the interlink area for the point of maxi-
mum wear (polishing). Measure and record the stock diame-
ter at this point of the link. Then measure stock diameter in
the same area on the link that does not pass over the lift-
wheel (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.
WARNING
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 AVOID INJURY:
Due to size requirements and physical properties, use
only CM supplied load chain in the the CM Hurricane
Hoist.
Worn chain can be an indication of worn hoist components.
For this reason, the hoist's chain guide, stripper and lift-
wheel should be examined for wear and replaced as neces-
sary 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.
IMPORTANT: 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 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
Chain Oil 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.
WARNING
Used motor oils contain known carcinogenic materials.
TO AVOID 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.

LUBRICATION

Hoist normally requires no additional lubrication except
when it had been disassembled for cleaning or repairs.
IMPORTANT: 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.
Bar and
®
5