23
INSPECTIONHOLESANDOPENINGSINYOKESANDRUNWAYS#HECKALLTHEFOLLOWING
A
4HATCABLESHAVENOBROKENWIRESVISIBLEREFERENCE$AILY)NSPECTION-AINTENANCE
B
4HATCABLESAREFREEOFSEVERECORROSIONANDPITTINGREFERENCE$AILY)NSPECTION-AINTENANCE!LIGHT
SURFACECORROSIONONEXPOSEDOUTERWIRESISNORMAL0ENETRATING/ILSHOULDBEAPPLIEDDURINGMONTHLY
periodic inspection.
C
4HATTHEREARENOAREASONTHECABLETHATHAVEAGREATLYREDUCEDDIAMETERORhNECKINGvREFERENCE$AILY
)NSPECTION-AINTENANCE7HENANYCABLEISFOUNDWITHEXCESSIVENECKINGALLCABLESMUSTBE
replaced immediately.
D
4HATCABLESDONOTHAVEEXCESSIVESTRETCH)TISNORMALFORNEWCABLETOREQUIREADJUSTMENTDURING
hBREAKINvAFTERWHICHSMALLPERIODICADJUSTMENTSMAYBEREQUIRED(OWEVERIFACABLETHATHAS
BEENINSERVICEFORMONTHSSHOULDSUDDENLYREQUIREFREQUENTADJUSTMENTSORHASUSEDALL
the cable adjustment available, all cables must be replaced immediately.
e.
If any cable is found to be in need of replacement, the entire cable set must be replaced immediately.
F
#ABLESAREEXPENDABLEITEMSANDSHOULDBEREPLACEDASASETEVERYCYCLESESTIMATED OREVERY
years, unless earlier replacement is indicated during inspection.
2.
Sheaves and Pins
)NSPECTSHEAVESANDPINSINYOKESANDRUNWAYS3HEAVESAREEXPENDABLEITEMS3HEAVESANDPINSSHOULDBE
REPLACEDWHENWORN5SEOFSHEAVESANDPINSWITHEXCESSIVEWEARWILLLEADTOREDUCEDSERVICELIFEOFCABLES
)NSPECTSHEAVESPULLEYS INYOKEENDSWITHLIFTINLOWEREDPOSITIONORRESTINGONTHELOCKINGLATCHES
A
(OLDLOWERINGHANDLEDOWNANDPULLONCABLEINCOLUMNTOCREATESLACKINCABLES
B
#HECKFOREXCESSIVESIDETOSIDEWOBBLE'RASPRIMOFSHEAVEANDATTEMPTTOWOBBLETILT SIDETOSIDE)F
SHEAVESWOBBLETILT MORETHANvMM SIDETOSIDEORMOVEUPANDDOWNONSHAFTMORETHANv
MM THESHEAVEANDPINSHAFT SHOULDBEREPLACED
c.
Check sheaves and replace if cracks are found.
d.
Check for ease of rotation. If sheaves do not turn freely, the sheave and sheave pin should be removed,
inspected, lubricated, and reinstalled or replaced.
&ULLYRAISELIFT)NSPECTSHEAVESPULLEYS INRUNWAYENDSWITHLIFTINRAISEDPOSITION
A6ISUALLYINSPECTALIGNMENTOFSHEAVESSEElGUREABOVE-ISALIGNMENTOFSHEAVES INDICATESEXCES
SIVEWEARTHESHEAVES ANDSHEAVEPINSHOULDBEREMOVEDANDINSPECTED2EPLACEASREQUIRED
B(OLDLOWERINGHANDLEDOWNTOLOWERLIFTONTOLATCHES0ULLONCABLESUNDERRUNWAYTOCREATECABLE
slack.
C#HECKFOREXCESSIVESIDETOSIDEWOBBLE'RASPRIMOFSHEAVEANDATTEMPTTOWOBBLETILT SIDETOSIDE
REFERTOlGURESABOVE)FSHEAVESWOBBLETILT MORETHANvMM SIDETOSIDEORMOVEIN
ANDOUTMORETHANvMM THESHEAVEANDSHEAVEPINSHAFT SHOULDBEREPLACEDREFERTO
figures above.
(YDRAULIC#YLINDER
