Disassembly And Assembly - CM Hurricane 5623A Manual De Funcionamiento

MAINTENANCE (CONTINUED)
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.
Figure 5 - Chain Inspection
Use only a "Knife-Edge" caliper to eliminate the possibility of a false
reading by not measuring full pitch length.
Using other than CM supplied load chain may cause the chain to
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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
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.
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® Bar and 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.
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.
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Hurricane 360 Hoist.
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(ENGLISH)
Using any grease or lubricant on the braking surfaces will cause
brake slippage and loss of load control which may result in injury
and/or property damage.
TO AVOID INJURY:
Do not use any grease or lubricant on braking surfaces. The brake is
designed to operate dry.
If hoist is disassembled for service, repair or inspection, remove
and clean existing grease from unit and replace with approximately
1 oz. of Poliplex 2 (Century Lubricants Co.) grease or equal lubricant
to the exterior surface of the drive shaft, gears, internal thread of
brake hub, surface of liftwheel bushings (1/2 ton unit), bushings in
the gear side plate and gear cover, internal and external surfaces of
handwheel bushings and rim of handwheel cover.
IMPORTANT: To assure long life and top performance, be sure to
lubricate the various parts of the hoist using the lubricants specified
above. If desired, these lubricants can be purchased from CM®
(See Figure 7, page 10).
REPLACING LOAD CHAIN
To replace the load chain, remove the lower hook block (656-17)
from the chain. Disconnect the chain from the loose end connector
(656-7) and operate the hoist in the lowering direction to run the
chain out of the hoist. Feed a length of soft wire up and over the
liftwheel. Attach the wire to the new load chain so that the chain
will be entering the center of the hoist frame. Position the chain
so that the first link to engage the liftwheel is an upstanding link
and the weld on all upstanding links will be away from the liftwheel.
Pull on the wire until the chain engages the liftwheel. Rotate the
handwheel until the chain comes out on the loose side of the hoist.
Attach the chain to the loose end connector and attach the lower
hook block assembly to the chain so that the lower hook is directly
below the upper hook.

DISASSEMBLY AND ASSEMBLY

The parts list and exploded view on pages 13 and 14 show the
general arrangement and name of the parts of the CM® Hurricane
360 Hand Hoist. These should be used when disassembling and
reassembling the hoists so that all parts are properly installed.
1. To inspect or replace the load brake disc, it is necessary
to partially disassemble the hoist. Remove the handwheel
cap (656-36) and the handwheel cover support (656-35).
Lift off the handwheel cover (656-34A) and slide it down the
hand chain (656-31). Lift the hand chain out of the handwheel
(656-27) pockets. Remove cotter pin (656-33), castle nut
(656-30) and washer (656-29) from the drive shaft (656-10).
Remove handwheel overload clutch assembly by turning
handwheel (656-27) counter clockwise. Inspect handwheel
brake hub (626-22) and replace it if the friction surface is
excessively scored (see Section 3, HANDWHEEL OVERLOAD
CLUTCH ASSEMBLY). Slide front brake disc (656-26), ratchet
disc assembly (656-21) and rear brake disc (656-26) from
pressure disk (656-20). Remove retaining ring (656-41) and
remove pressure disc (656-20) by turning counter clockwise.
Inspect both brake discs (656-26) and replace if excessive wear,
scoring, glazing or contamination is found. If brake discs are
worn down to the following thickness, replacement is required:
Capacity
1/2 –Ton, 1-Ton & 2-Ton
3-Ton, 5-Ton & 10-Ton
15-Ton, 20-Ton
Inspect ratchet disc assembly (656-21) and pressure disc
(656-20) friction surfaces, replace if excessively scored.
After the brake discs are inspected or replaced, reassemble
the hoist in reverse to the order given above.
8
Thickness Min. (in)
.043
.063
.063
P/N 192048547 Rev. AA January 2018