LKS Hidrolik 1 [PDF]

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PEMERINTAH KOTA BLITAR



DINAS PENDIDIKAN DAERAH



MGMP OTOMOTIF Sekretariat: SMK Negeri 1 Kota Blitar Jl. Kenari No. 30 Telp. (0342)801947 LEMBAR KERJA SISWA Mata Pelajaran Kelas Semester



: Kompetensi Kejuruan Teknik Kendaraan Ringan : XI TKR : Genap Nama:………………… Kelas:………………….



1. Standar Kompetensi



Memperbaiki sistem hidrolik dan kompresor udara 2. Kompetensi Dasar



Mengidentifikasi sistem hidrolik 3. Indikator 1. 2. 3. 4.



Pengertian dan prinsip dasar sistem hidraulik dijelaskan Alat-alat yang menggunakan prinsip sistem hidraulik diketahui Perhitungan dasar dipahami dan digunakan



Aplikasi perhitungan untuk menentukan ukuran dan kekuatan diterapkan



4. Kegiatan 1. Mempelajari pengertian dan prinsip dasar sistem hidraulik. 2. Mengetahui alat-alat yang menggunakan prinsip sistem hidraulik. 3. Memahami dan menerapkan perhitungan dasar. 5. Tujuan Pebelajaran 1. Siswa dapat menjelaskan mempelajari pengertian dan prinsip dasar sistem hidraulik. 2. Siswa dapat mengetahui alat-alat yang menggunakan prinsip sistem hidraulik. 3. Siswa dapat memahami dan menerapkan perhitungan dasar. 6. Materi Pembelajaran



No



A. Pengertian dan prinsip dasar sistem hidraulik Amatilah gambar di bawah ini dan carilah informasi tentang prinsip kerja gambar di bawah ini dari berbagai sumber, misalnya buku, internet, telivisi, dan lain-lain. Gambar Identifikasi Prinsip kerja Uraian :



F1



F2



A1



1



A2



Hukum pascal



Rumus:



Pengertian hidrolik



B. Alat-alat yang menggunakan prinsip sistem hidrolik Amatilah gambar di bawah ini dan carilah informasi tentang gambar di bawah ini dari berbagai sumber, misalnya buku, internet, telivisi, dan lain-lain.



No



Gambar



Nama alat



Fungsi



1



2



3



4



5



6



Komponen otomotif yang menggunakan prinsip sistem hidrolik Amatilah gambar di bawah ini dan carilah informasi tentang gambar di bawah ini dari berbagai sumber, misalnya buku, internet, telivisi, dan lain-lain.



No



Gambar



Nama komponen



Fungsi



1



2



3



4



5



C. Apliksi perhitungan dasar Amatilah gambar di bawah ini dan carilah informasi tentang perhitungan pada gambar di bawah ini dari berbagai sumber, misalnya buku, internet, telivisi, dan lain-lain.



Diameter pada silinder yang di tekan manusia 40cm Hitunglah tekanan yang diberikan manusia untuk mengangkat beban mobil sebesar 1200kg bila diameter silinder pengangkat mobil 1,5m Jawab: ............................................................................... ........................................................................................... ........................................................................................... ........................................................................................... ................................................................................................................................................................................................ ................................................................................................................................................................................................ ................................................................................................................................................................................................. ................................................................................................................................................................................................ ................................................................................................................................................................................................ ................................................................................................................................................................................................. ................................................................................................................................................................................................ ................................................................................................................................................................................................ ................................................................................................................................................................................................. ................................................................................................................................................................................................ ................................................................................................................................................................................................ Diameter pada silinder pada master silinder 10mm Hitunglah diameter pada silinder kaliper bila besar tekanan yang diberikan kaki pada pedal 0,5kg dan tekanan pada kaliper sebesar 10 kg. Jawab: ............................................................................................... ........................................................................................................... ............................................................................................................ ................................................................................................................................................................................................ ................................................................................................................................................................................................ ................................................................................................................................................................................................. ................................................................................................................................................................................................ ................................................................................................................................................................................................ ................................................................................................................................................................................................. ................................................................................................................................................................................................ ................................................................................................................................................................................................ ................................................................................................................................................................................................. ................................................................................................................................................................................................ ................................................................................................................................................................................................ 7. Uji Kompetensi A. Kerjakan soal-soal di bawah ini dengan singkat dan jelas 1. Sebutkan bunyi hukum pascal ................................................................................................................................................................................................. ................................................................................................................................................................................................ ................................................................................................................................................................................................ ................................................................................................................................................................................................. ................................................................................................................................................................................................



2. Jelaskan maksud dari rumus hukum pascal ................................................................................................................................................................................................. ................................................................................................................................................................................................ ................................................................................................................................................................................................ ................................................................................................................................................................................................. ................................................................................................................................................................................................ 3. Sebutkan komponen otomotif yang menggunakan hukum pascal dan jelaskan fungsinya ................................................................................................................................................................................................. ................................................................................................................................................................................................ ................................................................................................................................................................................................ ................................................................................................................................................................................................. ................................................................................................................................................................................................ ................................................................................................................................................................................................. ................................................................................................................................................................................................ 4. sebutkan fungsi alat-alat di bawah ini a. Dongkrak hidrolik ................................................................................................................................................................................................. ................................................................................................................................................................................................ ................................................................................................................................................................................................ ................................................................................................................................................................................................. ................................................................................................................................................................................................ b. Crane ................................................................................................................................................................................................. ................................................................................................................................................................................................ ................................................................................................................................................................................................ ................................................................................................................................................................................................. ................................................................................................................................................................................................ c. Tire Changer ................................................................................................................................................................................................. ................................................................................................................................................................................................ ................................................................................................................................................................................................ ................................................................................................................................................................................................. d. car lift ................................................................................................................................................................................................. ................................................................................................................................................................................................ ................................................................................................................................................................................................ ................................................................................................................................................................................................. 5. Sebutkan komponen-komponen yang ada pada power steering yang kamu ketahui ................................................................................................................................................................................................. ................................................................................................................................................................................................ ................................................................................................................................................................................................ ................................................................................................................................................................................................. ................................................................................................................................................................................................ 6. Sebutkan 3 komponen otomotif yang menggunakan prinsip hidrolik selain komponen-komponen di atas ................................................................................................................................................................................................. ................................................................................................................................................................................................ ................................................................................................................................................................................................ ................................................................................................................................................................................................. ................................................................................................................................................................................................