OPERATING INSTRUCTIONS
GENERAL
1. The Protector is designed to allow the first reduction gear
to slip on an excessive overload. An overload is indicated
when the hoist will not raise the load. Also, some clutching
noise may be heard if the hoist is loaded beyond rated
capacity. Should this occur, immediately release the
(Up)
control to stop operation of the hoist. At this point, the
load should be reduced to the rated hoist capacity or the
hoist should be replaced with one of the proper capacity.
When the excessive load is removed, normal hoist opera-
tion is automatically restored.
CAUTION: THE PROTECTOR IS SUSCEPTIBLE TO OVER
HEATING AND WEAR WHEN SLIPPED FOR EXTENDED
PERIODS. UNDER NO CIRCUMSTANCE SHOULD THE
PROTECTOR BE ALLOWED TO SLIP FOR MORE THAN A
FEW SECONDS.
Due to the above, a hoist equipped with a Protector is not
recommended for use in any application where there is a
possibility of adding to an already suspended load to the
point of overload. This includes *dumbwaiter installations,
containers that are loaded in mid-air, etc.
*Refer to limitations on Page ii concerning dumb-
waiter applications.
Also, if a XL Hoist with a Protector is used at unusual
extremes of ambient temperatures, above 150°F (65°C) or
below 15° F (-9°C) changes in lubricant properties may
permit the hoist to raise larger loads than under normal
operating conditions and presents possibility of damage
or injury.
2. Hoist operation is controlled by depressing the pendant
throttle control levers. Depressing the UP (
)lever will
move the lower hook towards the hoist and depressing the
DOWN (
) lever will move the lower hook away from the
hoist. The speed of lifting and lowering can be varied by the
distance the lever is depressed. To stop lifting and lowering,
release the lever. The up and down levers are momentary
type and the hoist will operate in the selected direction as
long as the lever is held in the depressed direction. Release
the lever and the hoist will stop.
3. If material being handled must be immersed in
water, pickling baths, any liquid, dusty or loose
solids, use a sling chain of ample length so that the
hook is always above the surface. Bearings in the
hook block are shielded only against ordinary atmos-
pheric conditions.
4. Read the operation section of American National
Standard ASME B30.16.
ALL HOISTS
1. Before picking up a load, check to see that the hoist
is directly overhead.
2. When applying a load, it should be directly under
the hoist or trolley. Avoid off-center loading of any
kind.
9
CHECKING FOR TWIST IN LOAD CHAIN
3 And 5 Ton Double Reeved Units
The best way to check for this condition is to run the
lower hook, without a load, to within 2 feet (0.6M) of
the hoist. If the dead end of 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.
6 And 7 1/2 Ton Triple Reeved Units
On these models, the load chain is dead ended on top
of the lower hook block. If 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 twist,
reverse the capsize.
CHAIN CONTAINER
If a chain container is to be used, attach it to the hoist
frame and place chain in container per instructions
provided with the chain container kit.
UNDER NO CIRCUMSTANCES SHOULD THE HOOK
BLOCK OR LOAD BE PERMITTED TO COME IN CON-
TACT WITH THE CHAIN CONTAINER. IF CONTACT IS
MADE, THE FUNCTION OF THE CHAIN CONTAINER
CAN BE INTERFERED WITH, THE CONTAINER MAY
BE DAMAGED AND IT COULD FALL OFF OF THE
HOIST.
PENDANT HOSE
Unless ordered on a special basis, the hoist is supplied
with a pendant hose that will position the pendant
approximately 4 feet (1.2M) above the lower hook
when it is at the lower limit of lift. If this places the
pendant too close to the floor, the pilot hoses and
strain cable can be shortened with diagonal cutters.
!
WARNING
TO AVOID INJURY:
Do not allow the hook block or dead end stop to
contact the bottom of the hoist.
Allowing the hook block to run into the bottom of
the hoist when raising a load or allowing the dead
end stop to run into the frame when lowering a
load may break the chain and allow the load to
drop.
!
WARNING
Tying knots or loops to shorten the drop of the
pendant will make the strain relief ineffective and
the pilot hoses may break or collapse restricting air
flow.
