●If a problem occurs while using the pulley, discontinue use immediately,
and check the items in .
<Inspection of movable parts>
■Single Sheave (Eye)
(Size 75, 100, 125, 150)
Insert the sheave pin so
that its triangular rib fits
into the notch on the body.
①Set the spring.
③Put it inside the hook while
tilting to the side so avoids
the hook tip.
●Rotation of sliding parts
○The swivel (or hook) and sheave
rotate smoothly.
●Safety latch opening and closing
○The safety latch opens and closes
smoothly to its specific positions.
○The spring is not permanently damaged.
The nut is not loose or defective.
●Perform periodic inspection at least once a year.
●If you use the product under harsh conditions such as frequent hoisting
of loads equal to the working load limit, impact loads, or intense rolling,
perform inspection early because the parts will wear out substantially.
●For periodic inspection, inspect all of the items in
Inspection before use
,
perform maintenance, and check the dimensions of each part. If the
dimensions are 10% different from the original dimensions or the
dimensions in the catalog, replace the part or product.
(Refer to for the dimensions.)
Follow local regulations when disposing.
●For inquiries about pulleys, please consult the dealer where you
purchased the product.
●Nut securing the sheave pin and the set screw are not loose or
defective.
*For the checking method, refer to Removing and attaching the nut .
●Snatch opening and closing
○The snatch hook opens and closes smoothly to its specific positions.
○The spring is not permanently damaged.
○The snatch cap opens and closes smoothly to its specific positions.
②Align the safety latch and spring
with the hook holes and insert
the bolt. (*1)
④Insert the bolt all the way through
and secure it with the nut.
⑤Pound the bolt tip with a hammer to
prevent the nut from getting loose.
Insert the sheave pin so that
its notch fits into the
squared notch on the body.
①Remove the set screw.
②Remove the nut.
①Tighten the nut.
②Screw in the set screw.
*If the set screw hits a rib, it will not go all
the way in and protrude out. In such
cases, loosen the nut just to move the rib
out of the way, and then screw in the set
screw all the way.
If you try to remove the nut first, the tip of the set screw will bend and
you will be unable to remove it.
■Single Sheave (Snatch/Eye)
(Size 75, 100, 125, 150)
[Replacement parts]
■Sheave pin ■Sheave
(Size 75, 100, 125, 150)
■Safety latch
(Size 75, 100)
■Single Sheave (Hook)
Double Sheave (Hook)
Single Sheave (Snatch/Hook)
(Size 75, 100)
■Double Sheave (Eye)
(Size 75, 100, 125, 150)
Snatch cap
Body
Body
Trigger
Swivel
Swivel
Sheave pin
Hook
(Size 75, 100)
With ball oil cap
(Size 125)
With grease nipple
(Size 150)
Sheave
Sheave
Bush
Nut
Set screw
Safety latch
(sold separately)
<Nut and set screw inspection>
●There are no cracks or corrosion in the
swivel and welded part of the swivel pin.
There are also no cracks or corrosion in
the other parts.
●There are no bends, twists, distortions, or
stretches.
●There is no excessive wear, denting, or
hollowing out.
●There is no wire scratch marks on the
sheave surface.
●Foreign matter or dirt is not attached.
●Casted characters on the body shall be
readable.
<Visual inspection of appearance>
1. Part names
3. Inspection and maintenance
4. In case of trouble
5. Disposal of the product
2. Part removal and attachment
When rotating the set screw with a hex key wrench, do not use a
worn-out hex key wrench or a hex key wrench with an incorrect size.
Doing so will strip the hexagon hole and you will be unable to
remove the set screw.
<Removal>
<Sheave pin>
(Size 75, 100, 125)
<Sheave pin>
(Size 150)
<Attachment>
Removing and attaching the nut
Attaching the sheave pin
Assembling the safety latch
Inspection before use
Periodic inspection
Maintenance
Bush
Bolt
Nut
Safety latch
Spring
Set screw
Nut
Protrusion is not OK
Snatch hook
Snatch cap
Spring
Notch
Body
Body
Triangular rib
Notch
*1
Do not let it go
through the
safety latch hole.
Do not use products that are in the following conditions.
・
Products that are deformed, cracked, or worn out
・
Products with signs of corrosion such as rust stains or
galvanic corrosion
Doing so may lead to serious injury or a fatal accident due to
falls or falling hoisted loads.
Do not let the product touch other types of metal for long
periods of time.
Doing so will cause corrosion.
When disassembling the pulley for sheave replacement,
remove it from high places and disassemble on the ground.
Failure to do so may drop the pulley and lead to serious injury or
a fatal accident.
When replacing parts, use ASANO-specified parts.
Failure to do so may result in lower functionality of the pulley
due to incompatible parts.
If it does not go into its specific positions even if you apply
grease, the cause may be deformation or bending.
Discontinue use and replace the product.
If rotation is poor, not centered, significantly rattles, or if rotation
stops, discontinue use and replace the part or product.
If the spring is significantly damaged and does not go into its
specific positions, replace the safety latch.
Inspect before using the pulley.
Using the product when there is a problem accelerates the
damage and may lead to strength deterioration, damage to the
product, or an accident of a falling hoisted load.
In the unlikely event the pulley deforms or breaks and a load is
hanging in midair, first take down the hoisted load, unload the
pulley, and take safety measures to prevent secondary disaster.
Spring
Nut
Rib
Squared notch
Sheave
Swivel
(Hook)
Welded part of
the swivel pin
Stretching
Apply to the gap of the swivel
pin in the body.
(Size 75, 100, 125)
Apply to the gap between the
sheave and the sheave pin.
(Size 75, 100)
*Lubricate from the ball oil cap of the
sheave pin with a grease gun.
(Size 125)
*Lubricate from the grease nipples of
the swivel pin and the sheave pin with
a grease gun. (Size 150)
●Applying to the snatch
●Applying to the swivel pin and sheave pin
<Applying grease (or lubricant)>
Swivel
(Hook)
Swivel pin
Sheave
Sheave pin
Body
Grease nipple
Ball oil cap Grease nipple
Apply to the movable parts of
the snatch.
Do not let grease on the swivel pin dry up.
Drying up will lead to breakage of the swivel pin or the crack of
the welded portion.
①For light dirt (such as hand marks, sand, or mud), wipe with a damp soft
cloth or sponge, and then wipe with a neutral detergent.
②If dirt still remains, wiping with a store-bought cleaner (cleaning
solution), remover, or thinner is effective.
③If rust stains (spots of rust caused by iron particles in dirt) remain after
performing ①and ②, use a store-bought rust remover.
④If the rust cannot be removed with a store-bought rust remover, rub it
off with sandpaper or an abrasive compound.
⑤Remove foreign matter by scraping it away with sharp-tipped object
such as a slotted screwdriver, and then perform ①and ②. Rub off
persistently attached foreign matter with a file or abrasive compound
because you may damage the product if you use excessive force.
<Removing corrosion (rust), dirt, and foreign matter>
Wipe frequently.
Attached foreign matter such as sea water, soot, or iron
particles will cause corrosion.
6. Product specifications
3. Inspection and maintenance
