Kitz B Series - Page 35

DocumentNo.:KE-4025-06                                           32/50
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TypeBS-0 
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 A compressed heavy-duty spring is packed within the spring case of the
TypeBSactuators.Thespringcovermaybepushedoutandcausepersonal
injuryifthetierodusedforfixingthespringcaseisloosenedandremoved.
When disassembling the spring case, make sureto follow the instructions
giveninthismanual. 
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■Preparation
BeforedisassemblingofTypeBS-0actuator,preparethreadedrods,springpinsandnutsasshowninthetable
below:
Parts ShapeandDimensions(mm) Qty
Threaded
rod
4
Springpin φ3×16long 4
Nut M6P1.0 4
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■Disassembly
1.Reducetheinternalpressuretotheatmosphericlevelandremovetheairtubing.
2.Removethehexagonalbolts〈94〉anddisassembletheactuatorfromthebracket〈93〉.
3.Removeoneofthenuts〈55〉andthetierod〈56〉.
4.Mountoneofthefourthreadedrodsinthepositionwherethetierodwasremovedandsecureitonthe
spring cover〈158〉with a nut. Insert a spring pin into a pin hole drilled on the threaded rod so that the
threadedroddoesnotloosen(Fig.23).
5.Repeattheaboveprocedureusingtheremainingthreadedrods,springpinsandnuts.
6.Gradually,alternatelyanddiagonallyloosenthenutsonthespringcoverandremoveallofthemwhenthe
springhaslostitsrecoilingforce.Thenremovethespringcover〈158>,springcase〈100〉andspring〈109〉.
7.Removeallofthethreadedrods.
8.Movethespringretainer 〈150〉byhandapartfromtherodguideB〈136B〉tomovethepiston〈177〉towards
therodguideA〈136A〉.
9. Removethehexagonalbolts〈35〉and disassemblethecylinder〈2〉from the housing〈1〉,taking care not to
scratchtheinternalsurface. 
10.Removethepistonnut〈13a〉andthepiston〈177〉.
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Fig.23
Threadedrod
Springpin