HOIST
OPERATION & MAINTENANCE
8
P/N: 11854801 REV. AC
September 2017
ANNUAL INSPECTION
1.
ALL ITEMS UNDER DAILY, MONTHLY AND QUARTERLY
INSPECTION.
2.
EQUALIZE SHEAVE, IDLER SHEAVE, AND PINS.
Check for cracked or worn sheaves, pins and bearings.
3.
HOOKS:
Magnetic particle or other suitable crack detecting
inspection should be performed if need is indicated by external
appearance. Check for loose retaining nuts and collars.
4.
LOAD BEARING PARTS:
Check for worn, cracked or distorted
parts, such as suspension housings, outriggers, clevises,
yokes, hook blocks, suspension bolts, shafts, locking devices
and bearings on hoist (also on trolley, if so equipped).
5.
MOTOR BRAKE:
Check for excessive or uneven disc wear.
On direct acting, check for excessive magnet gap. Lubricate
linkage as required.
PRIOR TO TESTING, ALL SUPPORTING STRUCTURES,
ANCHORAGES, AND/OR SUSPENSIONS MUST BE
APPROVED BY THE APPOINTED PERSON FOR THE TEST
LOADS USED.
6.
WIRING AND TERMINALS:
See that all connections are tight.
Terminals are to be securely crimped to wires and the insulation
sound. Bent terminals can usually be straightened to provide a
tight fit. Replace terminals or wire if necessary.
7.
SHEAVES AND DRUMS:
Inspect rope sheaves and drums for
excessive wear. When the groove of a sheave or rope drum
becomes worn excessively it should be replaced. Worn grooves
on the drum or sheave can greatly reduce the useful life of the
hoisting rope.
9.
BEARING LUBRICATION:
The motor, sheave, and outer drum
bearings are a pre-lubricated sealed design and normally will
not need to be lubricated.
10.
INSPECTION CHECKLIST:
Fill out inspection checklist at the
back of this manual, sign, date and file for future reference.
FUNCTION TESTING AFTER REPAIR
PRIOR TO TESTING, ALL SUPPORTING STRUCTURES,
ANCHORAGES, AND/OR SUSPENSIONS MUST BE
APPROVED BY THE APPOINTED PERSON FOR THE TEST
LOADS USED.
After repair or replacement of parts, function test hoist by operating
unloaded hoist into both upper and lower limits, first with slowest
speed possible, then with increasing speeds up to maximum. Limit
switch mechanisms must be adjusted so they will trip in sufficient
time to prevent damage to any part of the hoisting arrangement.
See instructions for adjustment of limit switches. Then test
operation of hoist and brake by lifting 100% of rated load. (A normal
load lifted may be substituted if no load bearing parts were altered.)
If hoist is equipped with a load limiting device, and load bearing
parts have been altered, the first test load should be only 100% of
rated load. The test should be prepared by the person responsible
and kept on file for future reference.
Содержание Lodeking LT Series
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