Product manual

Page 8 For technical questions, please call 1-800-444-3353. Item 61717
SAFETY OPERATION INSPECTIONINSTALLATION
Inspection, Testing, and Maintenance
Procedures not specifically explained in this manual must
be performed only by a qualified technician.
TO PREVENT SERIOUS INJURY FROM
ACCIDENTAL OPERATION:
Remove any load, release the operating controls,
and detach the power cord before performing any
inspection, maintenance, or cleaning procedures.
TO PREVENT SERIOUS INJURY FROM TOOL
FAILURE: Do not use damaged equipment.
If abnormal noise or vibration occurs,
have the problem corrected before further use.
Frequent Inspection
Perform the procedures in this section BEFORE
INITIAL USE and AT LEAST MONTHLY. Inspection
is needed more often for heavily used hoists.
1. Check operating mechanisms for proper operation,
proper adjustment, and unusual sounds
such as, but not limited to, binding noise
of the wire rope and bearing squeal.
2. Check hoist upper limit device without a load on the
hook at the beginning of each shift. Exercise care.
Run the load block into its limit device at slow speed.
3. Frequent Braking System Inspection
a. The braking system must automatically
stop and hold up to the rated load if the
operating controls are released and in
the event of complete power failure.
b. Braking systems must limit the speed of
load during lowering, with or without power,
to prevent uncontrolled or rapid lowering.
4. Frequent Hook Inspection
Check hooks for the following problems:
a. distortion, such as bending, twisting,
or increased throat opening;
b. wear;
c. cracks, nicks, or gouges;
d. latch engagement (if equipped);
e. damaged or malfunctioning latch (if equipped);
f. hook attachment and securing means.
5. Frequent Hoist Rope Inspection
All ropes should be visually inspected by
the operator or other designated person at the
start of each shift. These visual observations should
be concerned with discovering gross damage, such
as listed below,
which may be an immediate hazard:
a. distortion of the rope such as kinking,
crushing, unstranding, birdcaging,
main strand displacement, or core protrusion;
b. general corrosion;
c. broken or cut strands;
d. number, distribution, and type
of visible broken wires:
1) in running ropes,
12 randomly distributed broken wires in one lay
or four broken wires in one strand in one lay;
2) one outer wire broken at the contact point
with the core of the rope which has worked its
way out of the rope structure and protrudes
or loops out from the rope structure.
If such damage is discovered, either remove
the rope from service or arrange for a qualified
technician to give it a periodic (thorough) inspection.
6. Check wire rope reeving.
WARNING! TO PREVENT SERIOUS INJURY FROM HOIST FAILURE: Do not use damaged equipment.
If any defect or damage is noted, have the problem corrected before further use.
Periodic (Thorough) Inspection
A qualified technician should perform
the procedures in this section
AT LEAST YEARLY. Inspection is needed
more often for heavily used hoists.
Remove or open access covers to
allow inspection of components.
1. First, follow all Frequent Inspection procedures.
Additionally:
2. Check fasteners for evidence of loosening.
3. Check load blocks, suspension housings, clevises,
yokes, suspension bolts, shafts, gears, bearings,
pins, rollers, and locking and clamping devices for
evidence of wear, corrosion, cracks, and distortion.
4. Check hook retaining nuts or collars, and
pins, welds, or rivets used to secure the
retaining members for evidence of damage.
5. Check load sprockets, idler sprockets, drums,
and pulleys for evidence of damage and wear.
6. Check the motor brake and load brake
for evidence of wear.