CM 653 Serie Manual De Funcionamiento página 7

Operation (Continued)
Upper Hook
Latch
Frame
Directional
Lever
Load Chain
Lower Hook
Block
Latch
Figure 3 - Main Parts of Lever Hoist
Turn the free chaining knob counter-
clockwise ( ) to disengage the brake
and pull on either chain until the lower
hook is at the desired position. To
disengage the free chaining feature,
move the directional lever to the load
( ) or unload position ( ). Pull the load
chain in either direction to insure the
unit is out of the free chaining mode.
Do not take up the load chain to the
point where the chain stop or lower
hook block becomes jammed against
the frame.
ATTACHING THE LOAD
Attach the lower hook to the load so
that it is seated in the bowl of the hook
and is not bearing against the tip of the
hook or latch, and the latch is tight
against the hook tip.
Allowing the load to bear against the hook
latch and/or hook tip can result in loss of
load.
TO AVOID INJURY:
Do not allow the load to bear against the
hook latch and/or hook tip. Apply load to
hook bowl or saddle only.
Do not wrap the chain around the load
and hook onto itself as a choker chain
sling or bring the load in contact with
the hoist. Doing this will result in the
loss of the swivel effect of the hook
which could cause twisted chain and a
jammed liftwheel. Also, the chain may
be damaged at the hook. Make sure the
upper and lower hooks are in a straight
line and the frame is free to swivel on
the upper hook.
Free Chaining
Knob
Nameplate
Lever
Chain Stop
Lower Hook
If the unit is not rigged in a straight line
hook to hook manner, and if the frame is not
free to swivel, lever pull may break frame
and cause physical injury and loss of load.
TO AVOID INJURY:
Rig the unit in a straight line hook to hook
manner and keep frame free to swivel (See
Figure 4).
Figure 4 - Pulling at an Angle
4
TO PULL OR LIFT LOAD
Move directional lever to load ( )
position. Operate lever in up and down
motion to shorten the distance
between hooks and thus pull or lift the
load.
When pulling or lifting move the load
only enough to slightly load the unit,
then check to be sure that the
attachments to the hooks and load are
firmly seated. Continue movement only
after you are assured the load is free of
all obstructions.
The hoist has been designed for hand
powered operation only. Do not use an
extension on the lever. Lever pulls of 33
pounds on 3/4 ton unit, 44 pounds on 1
ton unit, 51 pounds on 1½ ton unit, 68
pounds on 2 ton unit and 77 pounds on
the 3 and 6 ton unit will result in rated
capacity on the unit. Any greater pull is
an indication of either an overload or
an incorrectly maintained unit.
Power operation may cause structural
damage or premature wear that in turn
may cause a part to break and allow the
load to fall.
TO AVOID INJURY:
Operate the Series 653 Lever Hoist using
hand power only!
TO LOOSEN OR LOWER LOAD
Move directional lever to unload ( )
position. Again, operate lever in an up
and down motion to increase the
distance between hooks and thus
loosen or lower the load.
LOCKED BRAKE
If a hoist which is under load is
suddenly relieved of the load by lifting
the load off of the lower hook by some
other means or pulling down walls, the
brake will lock.
The brake will also lock if the lower
hook block is pulled tightly against the
frame.
To unlock the brake, turn the
directional lever to the unload ( )
position and pull on the lever sharply.
Turning the Free Chaining Knob with a
load attached will allow the load to
release and may cause injury.
TO AVOID INJURY:
Never turn the Free Chaining Knob when
the lever hoist is under load.