Tus hneev, tseem hu ua hneev lossis balestra, tau nrov nyob hauv Cov Nrab Hnub nyoog. Nrog phom tuaj ntawm cov phom, cov hneev ploj nws qhov tseem ceeb ntawm kev sib ntaus, tab sis cov neeg yos hav zoov txuas ntxiv siv nws. Ib qho kev nyiam ntawm keeb kwm tau muab tus hneev tshiab rau lub neej tshiab. Ib yam li cov caj npab me me lossis cov riam phom pov, txoj kev loj yuav tsum tau muab tua.
Nws yog qhov tsim nyog
- - hneev;
- - thooj tawv;
- - sab hauv tsev tua ntau yam;
- - Cov hom phiaj;
- - nruab muaj cov chaw haujlwm tua.
Cov Lus Qhia
Kauj ruam 1
Txhawm rau tua cov hneev, siv bolts ntawm tib lub hom uas koj yuav mus tua yav tom ntej. Lub davhlau ntawm kev dav dav nyob ntawm tus qauv ntawm lub ntsia liaj qhov rooj, nws hnyav thiab lwm yam tsis. Nco ntsoov tua tus hneev tua sab hauv tsev, zoo li lub pob tw tawg raug cua heev.
Kauj ruam 2
Muab tus hneev tua coj los khi rau hauv txoj hauj lwm tua. Muab nws ruaj khov nrog clamps. Hluav taws peb zaug txhaj rau ib kab ntawm qhov phiaj xwm nyob ntawm 5m deb. Tsis tas txav los yog txav cov phiaj, txuas rau qhov ntaus ntawm cov pob tw nrog kab yog li tias daim duab peb sab tsim.
Kauj ruam 3
Muab cov tog faib sib faib ua ib nrab. Lub ntsiab lus 3 pawg. Qhov kev sib tshuam ntawm kev sib dho yog qhov chaw uas cov hneev hla mus.
Kauj ruam 4
Rov qab mus rau tus hneev thiab, tsis tas tshem nws ntawm qhov clamps, taw qhov pom ntawm qhov no. Ris riam phom kom ruaj.
Kauj ruam 5
Ua kev tswj hluav taws los ntawm rab hneev tsau ruaj ruaj ntawm qhov deb ntawm 10, 20 thiab 30 m. Qhov nrug deb tshaj plaws rau ib qho hneev pas nrig yog 30m, thiab rau qhov chaw hneev - 65m. Thaum lub sijhawm kuaj phom, cov kev hloov kho ntau thiab tuaj yeem tsim kho kom ua tau rau qhov ntsuas tau.
Kauj Ruam 6
Yog tias qhov pom tau kho qhov muag lossis khib thiab pinion, koj yuav tsum siv lub nplai rau nws kom raug. Nrog kev pom yooj yim, kho qhov tseeb yog qhia los ntawm qhov muag.
