C27 and C32 Engines for Caterpillar Built Machines Caterpillar


Excessive Valve Lash

Usage:

854K 221

Kemungkinan Penyebab

  • Pelumasan

  • Jarak celah katup

  • Komponen rangkaian katup

Tindakan yang Direkomendasikan

Pelumasan

  1. Lepaskan penutup mekanisme katup. Rujuk ke buku petunjuk Pembongkaran dan Perakitan engine untuk prosedur yang benar.

  2. Periksa pelumasan di kompartemen katup. Pastikan ada aliran oli engine yang memadai di kompartemen katup. Saluran untuk oli engine harus bersih.

Jarak Celah Katup

Setel jarak celah katup engine. Rujuk ke buku petunjuk Pengoperasian Sistem/Pengujian dan Penyetelan engine untuk prosedur yang benar.

Komponen Rangkaian Katup

  1. Periksa komponen rangkaian katup berikut:

    • Rocker arm

    • Roller follower (rocker arm)

    • Camshaft

    • Batang katup

    • Pengarah katup

    • Poros ayun

  2. Periksa komponen terhadap kondisi berikut: keausan abnormal, keausan berlebih, kelurusan dan kebersihan. Ganti komponen jika perlu.

    Catatan: Jika camshaft diganti, Anda juga harus mengganti roller follower (rocker arm).

  3. Setel jarak celah katup engine. Rujuk ke buku petunjuk Pengoperasian Sistem/Pengujian dan Penyetelan engine untuk prosedur yang benar.

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