MITARI MDT Serie Manual De Instrucciones página 27

Table 7-1 Lubrication chart
Part Description
Check control cables and strain relief
Cables
elements
Check operation of the slipping
Clutch
clutch (if fitted)
Check control pendant housing for
Pendant
damage
Check suspension eye/suspension
Hook
hook assembly
Check electrical switch gear and
Electrical
wiring
Check tight fit of securing bolts on
Hook
load hook assembly
Check ends of chain/chain bag to
Chain
ensure they are secure
Lubricate chain, under normal usage
Chain
Lubricate chain, under heavy usage
Check oil level and change oil (if
Oil
needed)
Check hooks for cracks, deformation,
Hook
pitting and wear
Check securing elements for tight fit
Clips/Bolts/Nuts
and corrosion
Lubricate chain sprocket bearing and
Bottom block
check for a tight fit of securing bolts.
Brakes Check operation of brakes
Check brake stroke, brake disc and
Brake
adjust brake as required
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Frequentie
Before each shift
Before each shift
Before each shift
After 50-200 service hours
Before each shift, Monthly
After 50-200 service hours
Before each shift
After 50-200 service hours
Before each shift
After 50-200 service hours
After 50-200 service hours
After 50-200 service hours
After 50-200 service hours
After 50-200 service hours
7. Inspection
General
The inspection procedure is based on ANSI/ASME B30.16. The following definitions are from ANSI/ASME
B30.16 and pertain to the inspection procedure below.
4. Qualified Person: A person who, by possession of a recognized degree or certificate of professional
standing, or who, by extensive knowledge, training and experience have successfully demonstrated
the ability to solve or resolve problems relating to the subject matter at work.
5. Designated Person: A person assigned or selected as being competent to perform the specific
duties to which he/she is assigned.
6. Normal Service: A distributed service which involves operation with randomly distributed loads within
the rated load limit or uniform loads less than 65% of rated load for not more than 25% of the time.
7. Heavy Service: A service which involves operation within the rated load limit which exceeds normal
service.
8. Severe Service: A service which involves normal or heavy service with abnormal operating
conditions.
Inspection methods and criteria
This section covers the inspection of specific items. The list of items in this section is based on those listed
in ANSI/ ASME B30.16 for the Frequent and Periodic Inspection. In accordance with ANSI/ASME B30
volumes listed under the General heading on the previous pages, these inspections are not intended to
involve disassembly of the hoist. Rather, disassembly for further inspection would be required if frequent
or periodic inspection results so indicate. Such disassembly and further inspection should only be
performed by a certified or qualified person trained in the disassembly and re-assembly of the hoist.
Table 8-1 Hoist Inspection Methods and Criteria
Item Method Criteria
Mechanisms should be properly adjusted and
Functional operating mech- Visual,
should not produce unusual sounds when
anisms Auditory
operated.
Braking distance with rated capacity should
Repair or replace as required Function
not exceed approximately five chain links.
Should be free of significant rust, weld
Hooks (surface condition) Visual
splatter, deep nicks or gouges.
The "D" dimension should not exceed the
Hooks (stretch) Measure
measured value for discard from Table 83.
The "F" and "T" dimensions should not be less
Hooks (fretting wear) Measure
than discard value listed in Table 8-3.
Should be free of significant rust, weld
splatter, nicks or gouges. Holes should not be
Hooks (yoke assembly) Visual
elongated, fasteners should not be loose and
there should be no gap between mating parts.
Action
Repair or replace as required
Repair or replace as required
Replace
Replace
Replace
Tighten or replace as required
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