Chain Lubrication; Disassembly And Assembly - Columbus McKinnon CM 653 Serie Manual Del Equipo

OPERATION
(Continued)
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, sitriations (minute parallel lines),
cracks in weld areas, wear and
stretching. Chain with any one of
these defects must be replaced.
Figure 6 - Chain inspection
Slack the portion of the chain that
normally passes over the liftwheel.
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 chain stop
for this purpose). Compare these two
measurements. if the stock diameter
of the worn link is 0.010 inches
(0.254mm), or more, less than the
stock diameter of the unworn link,
the chain must be replaced.
Vernier Caliper
measure 11 pitches
Figure 7 - Chain inspection
Also check chain for stretch using a
vernier caliper as shown in Figure 7.
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 (3.7 mm), the
chain must be replaced.
use only a "Knife-Edge" caliper to
eliminate possibility of false reading by
not measuring full pitch length.
SERIES 653
using other than Series 653 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 Series 653 supplied
load chain in the Series 653 Lever Hoist.
Note that worn chain can be an
indication of worn hoist components.
Weld
For this reason, the hoist's frame,
stripper, and liftwheel should be
examined for wear and replaced as
necessary when replacing worn
Wear in
chain (See DiSASSEmBLY and
these
ASSEmBLY below).
areas
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 after disposal.

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.
one pitch
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.
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.
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.
Do not use any grease or lubricant
on braking surfaces. The brake is
designed to operate dry.
When the hoist is disassembled for
cleaning or repairs, the following
locations should be lubricated with
approximately 1 oz. per hoist of
molykote BR-2-S (Dow Corning),
molytex #2 (Texaco) or Topmoly (Topsall)
grease or equal lubricant: gears, rollers
of the liftwheel bearing, exterior of pinion
shaft, surfaces of frame bushings and
surface of gear cover bushings. Be sure
to thoroughly clean the old grease from
these parts before re-lubricating.
impoRtant: To insure 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
Columbus mcKinnon (See Figure 13,
page 8).
DISASSEMBLY AND
ASSEMBLY
The parts illustration and list on pages 12
and 13 show the general arrangement
and name of the parts of the Series 653
Lever Hoist. These should be used when
disassembling and re-assembling the units
so that all parts are properly installed.
DISASSEMBLY
Points of caution to be observed upon
disassembly of the hoist are:
1. Loose rollers are used for the liftwheel
bearing, (refer to parts list for number
required). Care must be taken so as
to not loose or misplace these rollers
since they may drop from the unit as
the various parts are disassembled.
6
to aVoid inJuRy:
P/N 53855 (653-D) Rev AA may 2015