Kitz F Series - Page 46

Document No.：KE-4010-11                                            Page: 43/58
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3.  AdjustmentofIntermediateValveOpeningRange
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3.1Byuseofanoptionallongerstopperboltasakit,thevalveopeningrangecanbeadjustedwithinarangeof
-7° to97°. Thekitshallbemountedonthelefthandendcoverforadjustmentoftheopeningrange,while
itshallbemountedreverselyfor adjustment oftheclosingrange(Fig.3).  Follow theworkinginstructions
providedbelow.

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AdjustingopeningrangeAdjustingclosingrange
Fig.3
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(1)Equalizethehousingpressurewiththeatmosphericlevel,bymeansofoperationofanequalizervalveor
disassemblyoftheairtubing.
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(2)Removeahexagonnut,asealwasherandastopperbolt(ahexagonsocketsetscrew)fromtheendcover
ofeitherside,dependingonhowtomakeadjustment.
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(3)Mountanoptionallongstopperboltontheendcover,andtemporarilytightenitwithasealwasheranda
locknutalsobeingprovidedasanoptionalkit.
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(4)Rotatethelongstopperboltandadjustthevalveopening(orclosing)range.
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(5)TightenthelocknutwiththetorquespecifiedinTable3below:
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Table3.Locknuttighteningtorque
Actuator Locknuttighteningtorque
FA/FAS-1 3   to    5N・m
FA/FAS-2 5   to    8N・m
FA/FAS-3 9   to   15N・m
FA/FAS-4 25   to   30N・m
FA/FAS-5 40   to   50N・m
FA/FAS-6 100   to  120N・m
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(6)PutanO-ringoverthestopperboltandtightenacaponthelocknutsecurely.
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(7)ApplytheactualoperationpressuretobothPort[O]andPort[S],anddetectairleakagewithsoapsolution,
throughtheadjustmentkitparts.  Wipeoffthesoapsolutionafterwards.
Sealwashe
r
O-ring
Long stopper bolt
Lock nut
Cap