for the desired voltage. The insulation color
combination of each wire must match the two colors
adjacent to the terminal lug to which wire is attached.
All eight wires must be in the same column and all
terminals must be tight. Be sure to make a notation of
the new hoist voltage on the tag attached to Dower cord.
Since the motor in a three phase hoist can
rotate in either direction, depending on the manner in
which it is connected to the power supply, the direction
of hook movement must be checked during the original
installation and each time hoist is moved to a new
location. Serious damage can result if the hook is run to
the upper or lower limit of travel with the hook operating
in a direction opposite to that indicated by the control
station. Therefore, proceed as follows:
Make temporary connections at the power
Operate * (UP) control in control station
momentarily. If hook raises, connections are
correct and can be made permanent.
If hook lowers, it is necessary to change
direction by interchanging the Red lead and the
Black lead of hoist power cord at power supply.
Under no circumstances should the internal
wiring of control station or hoist be changed to
reverse hook direction. The wiring is inspected
and tested before leaving the factory.
CAUTION: As with any power hoist, the hook
block must not be allowed to run into the bottom
of the hoist nor allow the chain to become taut
between loose end screw and frame or else serious
damage will result, which could drop the load. Do
not force the Lodestar Protector to compensate for
improperly adjusted limit switches or reverse volt-
CHECKING FOR TWIST IN LOAD CHAIN -
Models E, H, E-2, H-2, R, RR, R-2 and RR-2.
The best way to check for this condition is to run
the lower hook, without a load, up to within about 2 feet
of hoist. If the dead end of the chain has been properly
installed, a twist can occur only if the lower hook block
has been capsized between the strands of chain.
Reverse capsize to remove twist.
CHECKING FOR ADEQUATE VOLTAGE AT HOIST
Take voltage reading at end of the standard 15
foot power cord with the hoist operating in the
é(UP) direction with full load.
The minimum running voltage for proper hoist
operation is given below:
CHECKING LIMIT SWITCH OPERATION
Operate hoist over the entire length of its rated
lift, checking upper and lower limit switches for correct
operation as follows:
Press * (UP) control and raise the lower hook
until top of hook block is about one-foot below the hoist.
Cautiously continue raising the hook until the
upper limit switch stops the upward motion.
The upper limit switch is set at the factory to stop the
hook block 3 inches from bottom of hoist on all units
with standard 10 foot lift except Models AA and AA-2.
Factory setting is 6 inches for these models and for all
other models equipped with chain for lifts longer than 10
If adjustment is necessary, see page 16 and 17.
CAUTION: As with any lower hoist, the hook block must
not be allowed to run into the bottom of hoist nor allow
the chain to become taut between loose end screw and
frame or else serious damage will result, which could
drop the load.
Press + (DOWN) control and cautiously lower
hook until lower limit switch stops the downward motion.
From 7 to 11 chain links (depending on hoist model)
should be between the loose end link and the hoist
entry. See Figure 2.
If adjustment is necessary, see page 17.
SHORTENING THE CONTROL CORD
If it is necessary to shorten the cord, it is
recommended that a "Control Cord Alteration Kit" (S-
474) be obtained from a distributor of CM Hoist or from
the CM Factory. However, if the proper solderless
wiring terminals, etc. are available, proceed as follows:
After hoist operates properly, disconnect power
supply, open control station and disconnect all wires and
steel strain cable.
Remove cord from control station and slide the
neoprene grommet and grommet retainer ring up on the
Cut off control cord for a length equal to the
distance station is to be raised, measuring from the end
of longest wire.
Now, using the cut off piece of cord as a guide,
strip outer insulation jacket and shorten individual wires
(except Green wire) to the lengths previously used, refer
to Figure 5. Strip insulation from each wire for distance
required for appropriate terminal.