Vestil ACH-100 - Manual (Page 9)

4
Hoist Power
Cord
Green-Yellow
* Manual
Disconnect
Switch
Black
White
Ground
* Slow Blow Fuses
or Inverse Time
Circuit Breakers
* Thermal
Overload
Relay
*Receptacle Rated for 15 Amps Minimum. (220-1-50 Units Do Not Include Power Cord
Plug) Wire Blue and Brown Wires to Fuses or Circuit Breakers and Green-Yellow Wire to
Ground.
Brown Blue
Figure 4A
1. When preparing to lift a load, be sure the attachments
to the lower hook are firmly seated in the hook saddle.
Avoid off center loading of any kind, especially loading
the tip of the hook or latch.
2. When lifting, raise the load only enough to clear the
floor or support and check to be sure that the
attachments are firmly seated. Continue to lift only after
you are assured the load is free of all obstructions.
3. Do not load the hoist beyond the rated capacity as
shown on the brake end cover. Overloading can cause
immediate failure of some load-carrying parts or create
a defect causing subsequent failure at less than rated
capacity. When in doubt, use the next larger capacity
hoist.
4. Do not use this or any other overhead materials
handling equipment for lifting persons.
5. Stand clear of all loads and avoid moving loads over
heads of other personnel. Warn personnel of your
intention to move a load into their area.
6. Do not leave the load suspended in air unattended.
7. Permit only qualified personnel to operate this hoist.
8. Do not wrap the load chain around the load and hook
onto itself as a choker chain. Doing so will result in:
• The loss of the swiveling effect of the hook which could
cause twisted chain and jammed liftwheel.
• The chain could be damaged at the hook.
9. On the 500, 600 and 1000 pound (226, 272 and 453 Kg.)
double reeved units, check for twists in the load chain. A
twist can occur if the lower hook block has been
capsized between the strands of chain. Reverse the
capsize to remove twist.
10. Do not allow the load to bear against the hook latch. The
latch is to help maintain the hook in position while the
chain is slack before taking up the slack chain.
11. Take up slack load chain carefully and start load easily
to avoid shock and jerking of the chain. If there is any
evidence of overloading, immediately lower the load
and remove the excess load.
12.Do not allow the load to swing or twist while hoisting.
13.Never operate the hoist when flammable materials or
vapors are present. Contact between steel parts may
produce sparks that in turn can cause a fire or
explosion.
14. S ST TA AY Y A AL LE ER RT T!! Watch what you are doing and use
common sense. Do not use the hoist when you are
tired, distracted or under the influence of drugs, alcohol
or medication causing diminished control.
INSPECTION
To maintain continuous and satisfactory operation, a
regular inspection procedure must be initiated so that worn
or damaged parts can be replaced before they become
unsafe. The intervals of inspection must be determined by
the individual application and are based upon the type of
service to which the hoist will be subjected. The inspection
of hoists is divided into two general classifications
designated as “frequent” and “periodic”.
Frequent Inspections
These inspections are usually visual examinations by the
operator or other designated personnel. Frequent
inspections are to be performed daily or monthly and shall
include the following items:
a. Operate the hoist, with no load, and check for visual
signs or abnormal noises which could indicate a
potential problem - daily.
b. Brake for evidence of slippage - daily.
c. Chain for lubricant, wear, damaged links or foreign
material - daily (see below).
d. Hooks for damage, cracks, twist, latch engagement
and latch operation - daily (see below).
Any deficiencies must be corrected before the hoist is
returned to service.
P Pe erriio od diic c IIn ns sp pe ec cttiio on ns s
These are visual inspections by an appointed person who
records apparent external conditions to provide a basis for
continuing evaluation. Periodic inspections are to be
performed semi-annually and they should include the
following:
a. All items listed under frequent inspections.
b. External evidence of loose screws.
c. External evidence of worn, corroded, cracked or
distorted hook block, gears, bearings, chain stop and
hook retainer.
d. External evidence of damage or excessive wear of the
liftwheel or sheave (double reeved unit). Widening and
deepening of pockets may cause chain to lift-up in the
pockets and cause binding between liftwheel and
chain guide or between lower sheave and hook block.
Check chain guide for wear or burring where the chain
enters the hoist. Severely worn or damaged parts
should be replaced.
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 a load to bear against the hook latch and/or
the hook tip. Apply load to hook bowl or saddle only.
TO AVOID INJURY:
• • D DO O N NO OT T Lift more than rated load.
• D DO O N NO OT T Operate with twisted, kinked or damaged chain.
• D DO O N NO OT T Operate damaged or malfunctioning hoist.
• D DO O N NO OT T Lift people or loads over people.
• D DO O N NO OT T Operate hoist when load is not centered under
hoist.
• D DO O N NO OT T Permit the lower hook block to contact hoist
frame or chain container.
• D DO O Replace damaged or malfunctioning hook latch.
• D DO O Keep load chain well oiled.
• D DO O Read and understand this manual and all
warnings on the hoist.
M MA AIIN NT TE EN NA AN NC CE E