621H, 623H and 627H Wheel Tractor-Scrapers Engine Supplement Caterpillar


Refrigerant Compressor - Remove and Install - Tractor

Usage:

623H DBF

Prosedur Pelepasan

Dimulai dengan:

  1. Lepaskan alternator.

------ PERINGATAN! ------

Cedera dapat terjadi akibat terkena refrigeran.

Persentuhan dengan refrigrean dapat menyebabkan beku rasa (frost bite). Jauhkan wajah dan tangan untuk mencegah terjadinya cedera.

Kacamata pelindung harus selalu digunakan sewaktu pipa-pipa saluran refrigreran dalam keadaan terbuka, meskipun alat ukur menunjukkan bahwa refrigeran telah kosong dari dalam sistem.

Lakukan selalu tindakan pencegahan sewaktu melepaskan fiting. Kendorkan fiting secara perlahan. Apabila sistem masih bertekanan, lepaskan secara perlahan pada daerah yang berventilasi baik.

Cedera atau bahkan kematian dapat terjadi akibat menghirup refrigeran melalui rokok yang terbakar.

Menghirup gas refrigeran AC melalui rokok yang terbakar atau melalui cara merokok lainnya atau menghirup uap refrigeran yang dilepaskan oleh nyala api yang bersentuhan dengan gas refrigeran AC, dapat menyebabkan cedera atau bahkan kematian.

Jangan merokok sewaktu melakukan servis pada AC atau setiap kali ada gas refrigeran.

Gunakan gerobak pemulihan dan daur ulang yang bersertifikasi untuk menghilangkan gas refrigeran dari sistem AC.


  1. Rujuk ke Buku Petunjuk Servis, SENR5664, "Air Conditioning and Heating Systems with R-134a Refrigerant" untuk prosedur pemulihan dan pengisian. Rujuk ke Publikasi Khusus, NENG2500, "Air Conditioning Tools" untuk peralatan yang benar.


    Ilustrasi 1g02589577

  2. Putuskan rakitan selang (1) dan rakitan rangkaian kabel (2).

  3. Lepaskan baut (3) dan kompresor refrigerant (4).

Prosedur Pemasangan

  1. Pasang kompresor refrigerant (4) dengan urutan kebalikan dari pelepasan.

    1. Kencangkan rakitan selang (1) dengan torsi pengencangan 21 ± 3 N·m (185 ± 27 lb in).

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