Ingxenye ephezulu ethambekele ingenye yezakhiwo zesikhunta. Ngaphambi kokuklama, yenza ukuhlaziywa okuhlelekile kwesakhiwo somkhiqizo. Ngokwesakhiwo somkhiqizo, indlela eyethulwe ukubhekana nezinye izindlela zokusika (indlela yokubhekana nezindlela zokusika iphansi nayo inesikhundla somugqa), bese kuba indawo yomugqa kanye nendawo ephezulu ethambekele Uphi umehluko?
Umgomo oyisisekelo womphakamisi kanye nendawo yomugqa ukufaka esikhundleni sokunyakaza okuqondile kwesikhunta ngesiqondiso esivundlile. Umehluko omkhulu usezinhlotsheni ezahlukene zamandla okushayela: umphakamisi uhamba kakhulu ngokunyakaza kwepuleti le-thimble. Akufani nokuthi indawo yomugqa isekelwe ekwakhiweni kokuvulwa nokuvalwa kwesikhunta sesilisa nesesifazane. Ngakho-ke, ukwakheka komphakamisi kuhlobene nokushaya kwepuleti le-ejector, okuwumehluko omkhulu phakathi komklamo womphakamisi kanye nomklamo wendawo yomugqa.
Izinkinga okufanele ziqashelwe lapho kuklanywa uphahla olugobile:
1). Uphahla oluthambekele alugcini nje ngokudlala indima yokudonsa okungaphakathi, kodwa futhi lungadlala indima yokukhipha. 2). Uphahla oluthambekele kumele lwakhiwe ngomzimba oqondile omude ongu-5-10MM njengendawo yokuvala kanye nendawo yokuthinta. 3). Ibanga lokudonsa okungaphakathi kufanele okungenani libe ngu-2mm ngaphezu kokujula okungaphansi. 4). Kufanele kube nesikhala esanele sokuba ingxenye ethambekele ishelele ohlangothini lapho ingxenye ethambekele ishelela khona ebusweni beglue yomkhiqizo, futhi akufanele kube khona ukuxubha ngeglue noma ukuphazamiseka kwezinye izingxenye.

Uma ingxenye ephezulu ithambekele, izoshiya uphawu kumkhiqizo, okuyinto evamile.