© 2018 Columbus McKinnon Corporation. All Rights Reserved
5
P/N: EL-680 REV AA JULY 2018
SAFETY PRECAUTIONS
This hoist is designed for safe operation within the
limits of its rated capacity. There are safety features
built into the hoist to protect the operator and others
from injury due to failure of the hoist itself. However,
listed below, are safety pointers which must be
followed in order to protect personnel and property.
1. Avoid side pull or end pull at all times.
2. Unit switches are emergency devices. Do not
use limit switches to stop the hoist in normal
operation. Do not leave load block in contact
with limit switch at and of operation.
3. Do not operate hoist with twisted, kinked or
damaged chain.
4. Do not operate hoist with a chain that is not
property seated in all pockets.
5. Do not operate a damaged or malfunctioning
hoist until necessary adjustments or repairs
have been made.
6. Do not use hoist to lift, support or otherwise
transport people or to carry loads over people.
7. Make sure all supporting structures are strong
enough to hold your intended load.
8. Do not lift more than the rated capacity of the
hoist.
9. Do not use the chain as a substitute for slings.
10. Allow only qualified personnel to operate the
hoist.
11. Do not leave a load suspended in the air
unattended.
12. Avoid jogging controls or quick reversals of
load.
13. Always disconnect hoist from power supply
before making electrical connections or
repairs. The main disconnect to the hoist
should be locked out during repairs.
14. Do not use pushbutton cable to move either
hoist or load along rail.
15. When replacement parts are required, use
only parts supplied by the manufacturer.
16. Do not remove or obscure warning labels or
capacity labels or tags.
17. Use only alloy chain and attachments for
overhead lifting.
18. Do not use to lift, support or transport molten
metal.
Come of the hoists and trolleys manufactured by
Chester Hoist can be adjusted to fit various sizes of
runway beams. Other Chester Hoists and trolleys are
built to fit a runway specified by our customers.
Regardless, it is the customer’s responsibility to apply
such engineering calculations or tests, as may be
necessary, to satisfy that the runway beam flanges are
capable of carrying the loads expected to be handled.
GENERAL INSTRUCTIONS
a. The power supply should be within plus or
minus 10% of the voltage specified on the
hoist nameplate.
b. Supporting structure, Including trolleys,
monorail, etc. should have a load rating at
least equal to the hoist plus weight of hoist.
c. Check lubrication level in the gear case and
trolley gear case (If supplied with the hoist).
d. Check chain for damage and Improper seating
in load or Idler sheaves.
LOAD HOOK DIRECTION (PHASING)
CAUTION:
Failure to follow these instructions may
causa immediate and severe damage to this hoist
When installing your hoist, make only temporary
connections at the power source. Push the "UP"
button and observe the direction of the load block. If
the load block raises, the phasing is correct and
permanent connection may be made at the power
source. If the load block lowers, release the button
immediately. To correct load block direction, reverse
any two wires (except the green ground wire) at the
power source only. DO NOT CHANGE
CONNECTIONS AT ANY OTHER LOCATION.
LIMIT SWITCH OPERATION (PADDLE)
Before placing the hoist in operation, check for proper
upper limit switch operation. Push the "UP" button and,
while the hoist is moving upward, raise the limit switch
lever. The hook should stop immediately.DO NOT
OPERATE THE HOIST IF THE LIMIT SWITCH(ES)
ARE NOT OPERATING PROPERLY.
BRAKE OPERATION
NOTE: Run in hoist with a light load a few times before
lifting the rated load. After lifting a light load a few
times, test the hoist per paragraph VI. Check for load
block drift with the maximum rated capacity load on
the hook. If hook does not stop within one to two
inches when push button is released, it may be
necessary to adjust the brake. See Maintenance –
Adjustments and Repairs.
INSTALLATION ON BEAM
See Installation section.
CHAIN CONTAINER INSTALLATION
See Installation section.
