© 2018 Columbus McKinnon Corporation. All Rights Reserved
9
P/N: EL-680 REV AA JULY 2018
CHAIN REPLACEMENT
a. When replacing load chain, the two chains
must be exactly the same length.
b. The starting chain link on each chain must be
simultaneously fed into two lifting load
sheaves.
c. The starting links must be placed over the top
of the load sheave in a horizontal position to
permit end attachment without twisting the
chain.
d. The second link of chain will be a standing link
of chain; this link should have the weld furthest
away from the center of the load sheave.
e. See Figure 2 for chain reeving.
f. Use only chain supplied by Chester Hoist.
g. See Chain Container Installation Notes for
instructions for loading chain into a chain
container.
a. Refer to Figure 3.
b. To enable the two independent chains to lift
the bottom block evenly, the large gears and
load sheaves must first be timed as Illustrated.
Then both gears must be timed
simultaneously with the shaft pinions. This
timing procedure is only necessary when the
gears have been disengaged during
disassembly, Figure.3.
FUNCTION TESTING
After load sustaining parts have been altered, replaced
or repaired, the hoist should be load tested. The hoist
should be tested using 100 percent of rated load.
TABLE 2: LUBRICATION
PART
LUBRICANT
INSTRUCTIONS
FREQUENCY
Transmission
Mobilgear #634
Synthetic or Equivalent
(see parts manual for
quantity)
Drain from drain plug in bottom of
housing. Fill to level plug on side of
housing.
After initial 50 hours of
operation, then every 3
months or 500 hours.
Motorized
Trolley Gear
Box
Mobilgear #634
Synthetic or Equivalent
(see parts manual for
quantity)
Drain from drain plug in bottom of
housing. Fill to level plug on side of
housing.
After initial 50 hours of
operation, then every 3
months or 500 hours.
Load Block
NLGI No. 2 Grease
Lubrication is required only when sheave
pin contains grease fittings.
30 days
Load Chain
Intermediate oils
preferably with EP
Additives
Bonded Lubricants such
as Dow Molykote M-77
or LPS Chainmate
Immerse in oil or swab with oil soaked
rag. Wipe off excess oil. Maintain chain
rust-free.
Use in place of oil, if oil residue is
objectionable.
Daily
*Trolley
Wheels
NLGI No. 2 Grease
Wheels will have grease fittings. (see
note below)
After prolonged use or
reassembly.
Spur Gears
NLGI No. 2 Grease
Brush on exposed gears.
Weekly
*Not required on units equipped with sealed ball bearings. (Wheels will not have grease fittings.)
