1. Hubi in qaabka shirka ee la soo iibsaday uu la mid yahay nooca injiinka.

2. Ka dib marka sheyga la furfuro, hubi muuqaalka muuqaalka (dharka silsilada, piston, giraanta piston, piston pin, iwm.) si loo xaqiijiyo in aysan jirin dhibaato tayo leh, ma jirto dhaawac shil ah, ma jiraan alaabooyin isku dhafan ama been abuur ah ka hor intaan la isticmaalin.

3. Nadiifi kulanka, tijaabi oo barbar dhig si loogu rakibo tijaabinta (xadhkaha qoyan iyo qalalan ee dhululubada kuma habboona in lagu rakibo tijaabada jidhka, oo ku cabbir qalabka cabbiraadda haddii ay suurtagal tahay). Bisinka iyo xadhkaha dhululubada, giraanta bistoonka iyo xadhkaha dhululubada iyo bistoonka, bisinka bisinka iyo bisinka iyo usha isku xidha, xadhkaha dhululubada iyo jidhka.

4. Si adag ayaa loo mamnuucay in saliid la marsado marka la rakibayo maro qallalan oo qoyan, oo lagu rakibo toner. Nadiifi daloolka kursiga ee jidhka mishiinka si aad u ilaaliso saxnaanta daloolka fadhiga iyada oo aan la beddelin iyo burooyinku. Haddii nadiifinta u dhaxaysa xuubka dhululubada iyo jidhka (guud ahaan aan ka yarayn 0.015 mm) ay aad u yar tahay, waxaa lagula talinayaa in lagu rakibo daboolka dhululubada leh qabow qabow.

5. Marka la rakibayo xadhkaha dhululubada, qalab gaar ah waa in la isticmaalaa si si habsami leh loo riixo oo loo rakibo, mana jiro garaac adag ama rakibid qallafsan oo loo oggol yahay in laga fogaado qallafsanaanta xadhkaha dhululubada iyo waxyeellada qaybaha la xidhiidha.

6. Qadarka soo baxaya ee xadhkaha dhululubada iyo diyaaradda jidhku waa in aanay dhaafin qiimaha la cayimay, xadhkaha dhululubada si xad dhaaf ah u soo baxayna way fududahay in la burburiyo madaxa dhululubada. Haddii diyaaradda xuubka dhululubada iyo jirku aad u hooseeyo, way fududahay in la keeno gaaska dhululubada inuu soo daato.

7. Jirka qalloocan waa in la hagaajiyaa ama la beddelaa, oo la beddelaa ushii isku xidhka ee qallafsan ama kaynta ushii isku xidhaysay ee dhaawacantay.

8. Cidhifyada hore iyo dambe ee piston waa la kala soocaa, giraanta piston laguma rakibi karo rogaal celis, iyo siddooyinka sare iyo hoose waa la kala saaraa. Guud ahaan, giraanta piston waxaa lagu rakibay dhinaca la calaamadeeyay oo u jeeda xagga sare ee bistoonka. Nadiifinta isku-buuqa ee madaxa piston iyo dhululubada waa in lagu hayaa shuruudaha farsamada ee moodeelka (guud ahaan waxaa lagu hayaa ka sarreeya 0.30mm, marka laga reebo matoorada yaryar).

9. Marka piston-ka iyo godka biinanka ay ku jiraan faragelin ama ku habboonaanta kala-guurka, si loo fududeeyo rakibaadda, qubayska saliidda piston ama biyaha karkaraya waa la kululayn karaa, biinanka saliidda leh ayaa la riixi karaa waqti ka dib marka la kululeeyo. Ha ku kululayn biistanka olol furan ama olol kulul.

10. Ilaali cadadka nadiifinta bilaashka ah ee u dhexeeya giraanta haynta biinanka iyo biinanka si aad uga hortagto shilalka ka dhasha balaadhinta biinanka ee ka soo horjeeda giraanta haynta.

11. Giraantu waa in uu si xor ah oo dabacsanaan ah ugu wareego jeexdin giraanta iyada oo aan cidhiidhi gelin, dusha wareegtaduna guud ahaan kama sarayso dusha wareegta ah ee bangiga giraanta piston.

12. Markaad ku rakibayso usha isku xirka piston, nadiifi marka hore shirka, ka dibna mari saliid saliid leh oo nadiif ah (saliid looma ogola dusha sare ee piston-ka), ganacsan dekedaha giraanta ee piston (dekedda giraanta ugu horeysa waa inaysan wajihin shidaalka dhinaca duritaanka), oo dhig giraanta Afku wuxuu saaran yahay marada ugu weyn ee bistoonka (marka laga reebo bistoonnada marada oo buuxa). Ogsoonow in afka giraanta ahi aanu u dhawaan dhinaca biinanka biinanka.

13. Markaad beddesho golaha, fiiro gaar ah u yeelo kormeerka qaybaha la xidhiidha: crankshaft wuxuu u guuraa gadaal iyo gadaal (in ka yar 0.30 mm), shaabadda tuubada qaadashada, nadiifinta qashinka ee dhuumaha, nadiifinta iyo beddelka ee saddexda filtarrada, saamaynta atomization ee sanbabada shidaalka, bamka duritaanka shidaalka Haddii cadaadisku la kulmo heerka, iwm.