上扣?

在主(zhu)鉗(qian)(qian)和背(bei)(bei)鉗(qian)(qian)鉗(qian)(qian)頭(tou)對(dui)齊(qi)缺口的(de)狀態下，分別(bie)將主(zhu)鉗(qian)(qian)復(fu)位旋(xuan)鈕(niu)及背(bei)(bei)鉗(qian)(qian)復(fu)位旋(xuan)鈕(niu)搬向(xiang)(xiang)上(shang)扣(kou)(kou)方向(xiang)(xiang)，并(bing)將液壓油(you)管(guan)鉗(qian)(qian)推向(xiang)(xiang)管(guan)柱，操作換(huan)向(xiang)(xiang)閥手柄，使主(zhu)鉗(qian)(qian)鉗(qian)(qian)頭(tou)沿(yan)上(shang)扣(kou)(kou)方向(xiang)(xiang)旋(xuan)轉(zhuan)，進行上(shang)扣(kou)(kou)。上(shang)扣(kou)(kou)完(wan)(wan)畢，操作換(huan)向(xiang)(xiang)閥手柄，使主(zhu)鉗(qian)(qian)反(fan)轉(zhuan)至主(zhu)鉗(qian)(qian)、背(bei)(bei)鉗(qian)(qian)鉗(qian)(qian)頭(tou)分別(bie)對(dui)齊(qi)缺口，然(ran)后(hou)將液壓油(you)管(guan)鉗(qian)(qian)撤離管(guan)柱，即完(wan)(wan)成一次上(shang)扣(kou)(kou)操作。?

6、卸扣?

在主鉗(qian)(qian)(qian)(qian)和背(bei)(bei)鉗(qian)(qian)(qian)(qian)鉗(qian)(qian)(qian)(qian)頭對齊(qi)缺口的(de)狀(zhuang)態下，分別(bie)(bie)將(jiang)主鉗(qian)(qian)(qian)(qian)復位旋鈕及背(bei)(bei)鉗(qian)(qian)(qian)(qian)復位旋鈕搬向卸(xie)(xie)扣方向，并將(jiang)液(ye)壓油(you)管(guan)鉗(qian)(qian)(qian)(qian)推(tui)向管(guan)柱(zhu)，操(cao)作(zuo)(zuo)換(huan)向閥手柄，使(shi)主鉗(qian)(qian)(qian)(qian)鉗(qian)(qian)(qian)(qian)頭沿卸(xie)(xie)扣方向旋轉，進(jin)行卸(xie)(xie)扣。卸(xie)(xie)扣完(wan)(wan)畢，千斤(jin)頂高(gao)壓軟管(guan)，操(cao)作(zuo)(zuo)換(huan)向閥手柄，使(shi)主鉗(qian)(qian)(qian)(qian)反轉至主鉗(qian)(qian)(qian)(qian)、背(bei)(bei)鉗(qian)(qian)(qian)(qian)鉗(qian)(qian)(qian)(qian)頭分別(bie)(bie)對齊(qi)缺口，然后將(jiang)液(ye)壓油(you)管(guan)鉗(qian)(qian)(qian)(qian)撤離管(guan)柱(zhu)，即(ji)完(wan)(wan)成一次卸(xie)(xie)扣操(cao)作(zuo)(zuo)。

無(wu)論上扣或卸扣，在初(chu)始轉(zhuan)動時(shi)，力求(qiu)轉(zhuan)速緩慢，以減(jian)輕(qing)主(zhu)鉗(qian)背鉗(qian)的(de)反向撞擊及對(dui)管(guan)柱(zhu)的(de)損傷。?

7、調整主鉗(qian)、背(bei)鉗(qian)間距(ju)?

在(zai)組合(he)鉗(qian)體(ti)落地狀態下，液壓(ya)扳手雙(shuang)聯油管，將(jiang)前(qian)(qian)后(hou)導桿(gan)導桿(gan)銷(xiao)插入前(qian)(qian)后(hou)導桿(gan)靠上(shang)孔眼，主鉗(qian)、背鉗(qian)間(jian)(jian)距將(jiang)加(jia)大。反之將(jiang)前(qian)(qian)后(hou)導桿(gan)導桿(gan)銷(xiao)插入前(qian)(qian)后(hou)導桿(gan)靠下孔眼，主鉗(qian)、背鉗(qian)間(jian)(jian)距將(jiang)減小。

軟管總成的排布：應避免軟管因(yin)拉伸、壓(ya)縮、扭(niu)曲、或在銳角處(chu)摩擦而損壞，不應在扭(niu)轉狀態下(xia)使(shi)用。?

8、軟管總成的貯存(cun)：受溫度、光照等因素的影響，其有效期難以(yi)確定(ding)。?

DIN標(biao)準中(zhong)規定，裝配總(zong)成所(suo)用的軟管(guan)必須是(shi)四年以內生(sheng)產的，軟管(guan)總(zong)成生(sheng)產后，使用年限不得(de)超過(guo)6年，其中(zhong)在6年里，貯存(cun)的時間不得(de)超過(guo)2年。?

ISO標準(zhun)中規定，軟管(guan)和軟管(guan)總(zong)成的有效期(qi)(qi)不得超過10年(nian)(nian)。?軟管(guan)經貯存后，高壓軟管(guan)，若目測表(biao)面有龜(gui)裂、銹(xiu)蝕等，使用(yong)前(qian)應(ying)做(zuo)壓力(li)測試(shi)。?其中，接頭內(nei)O型圈(quan)的有效期(qi)(qi)不超過2年(nian)(nian)

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關于選用耐油(you)膠板、羊毛(mao)氈、軟鋼紙(zhi)板、組合密封墊圈或密封膠的管接頭處走漏，無論是(shi)何原料，首先應查看其密封件有無破(po)損，變形、老化和(he)粗糙度過大(da)等(deng)狀(zhuang)況，然(ran)后采納相應的措施(shi)。