CM Lodestar A, Руководство по эксплуатации, техническому обслуживанию и каталог запасных частей

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00001996 (REV AC) 627NH October 2014
Allowing the hook block to run into the bottom of the hoist when raising
a load or allowing the chain to become taut between the loose end
screw and the frame when lowering a load may break the chain and
allow the load to drop.
TO AVOID INJURY:
Do not allow the hook block to contact the bottom of the hoist or
the loose end chain to become taut.
CHECKING FOR TWIST IN LOAD CHAIN
MODELS E,H, E-2, H-2,R, RR, R-2, 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 (.61 meters)
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.
Models RT, RT-2, RRT and RRT-2
On these models, the load chain is dead ended on top of the
lower hook block. If the chain has been properly installed,
the only way a twist can occur is if the lower hook block
has been capsized between the strands of chain. If this has
occurred, two strands of chain will be wrapped around each
other and to remove this, reverse the capsize.
CHECKING FOR ADEQUATE VOLTAGE AT HOIST
The hoist must be supplied with adequate electrical power in
order to operate properly. For proper operation, the voltage,
(measured at the hoist end of the standard power cord with
the hoist operating in the, up direction with full load) must be
as indicated in the table below.
Nominal Voltage
Minumum
Running Voltage
Minimum
Starting Voltage
115-1-60 104 98
230-1-60 207 196
230-3-60 187 -
460-3-60 396 -
575-3-60 495 -
220-3-50 198 -
380-3-50 365 -
415-3-50 399 -
550-3-50 495 -
SIGNS OF INADEQUATE ELECTRICAL POWER
(LOW VOLTAGE) ARE:
• Noisy hoist operations due to brake and/or
contactor chattering.
• Dimming of lights or slowing of motors connected
to the same circuit.
• Heating of the hoist motor and other internal
components as well as heating of the wires and
connectors in the circuit feeding the hoists.
• Failure of the hoist to lift the load due to motor stalling.
• Blowing of fuses or tripping of circuit breakers.
Failure to properly ground the hoist presents the danger of
electric shock.
TO AVOID INJURY:
Permanently ground the hoist as instructed in this manual.
To avoid these low voltage problems, the hoist must be
connected to an electrical power supply system that
complies with the National Electrical Code and applicable
local codes. This system must also provide (slow blow fuses
or inverse-time type circuit breakers) and provisions for
grounding the hoist.
Low voltage may also be caused by using an undersized
cord and/or connectors to supply power to the hoist. The
following chart should be used to determine the size wires
in the extension cord in order to minimize the voltage drop
between the power source and the hoist.
Length of
Extension Cord
Single Phase Hoists Three Phase Hoist
Minimum Wire Size Minimum Wire Size
Up to 50 Feet #14 AWG #16 AWG
80 FEET (24.4 M) #12 AWG #16 AWG
120 FEET (36.7 M) #10 AWG #14 AWG
200 FEET (61.0 M) Contact Factory #14 AWG
For runs beyond 200 Feet contact factory.
Failure to provide a proper power supply system for the hoist may cause
hoist damage and offers the potential for a fi re.
TO AVOID INJURY:
Provide each hoist with a 20 amp, minimum, overcurrent
protected power supply system per the National Electrical Code
and applicable local codes as instructed in this manual.
Remember, operation with low voltage can void the CM
repair/replacement policy. When in doubt about any of the
electrical requirements, consult a qualifi ed electrician.
Working in or near exposed energized electrical equipment presents the
danger of electric shock.
TO AVOID INJURY:
DISCONNECT POWER AND LOCKOUT/TAGOUT
DISCONNECTING MEANS BEFORE REMOVING COVER OR
SERVICING THIS EQUIPMENT.