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The ISUZU foam fire truck, as specialized firefighting equipment, excels in its highly efficient foam suppression system. Compared to water tank fire trucks, while retaining the basic water tank structure, it is additionally equipped with key components such as a foam liquid tank, air-foam proportioning system, and foam-water monitor, forming a unique foam firefighting capability. To maximize the effectiveness of these systems, operators must master standardized operating procedures and understand troubleshooting methods for common issues. Below, we will provide a detailed analysis of the professional operation methods for the ISUZU foam tanker fire truck , covering both operational steps and typical troubleshooting approaches.
Operation of the ISUZU Foam Tender Fire Truck
1. Foam Liquid Refilling
There are two methods to refill the foam liquid tank in an ISUZU foam fire engine:
Steps for compressed air transfer:
① Connect the suction tube, air charging nozzle, and tire inflation hose with adapters.
② Start the engine to ensure sufficient air pressure in the truck's air reservoir.
③ Close the foam proportioner and open the foam tank inlet valve.
④ Connect the air hose to the charging nozzle to introduce compressed air into the foam drum.
⑤ The foam liquid is pushed into the foam tank under air pressure.
⑥ Once the drum is empty, immediately shut off the air release valve and foam tank inlet valve to prevent excessive air intake.
2. Foam Firefighting Operations
(1) Internal Foam Suction (Tank Supply)
Foam is drawn from the onboard foam tank via the proportioning system.
Steps:
① Connect hoses, foam guns, or monitors as needed. For medium/high-pressure hose reels, install the dedicated foam attachment.
② Set the foam gun selector to
"mixed solution" or "water" position.
③ Nyalakan pompa air (lihat pengoperasian truk tangki air).
④ Buka katup air bertekanan yang menuju ke proporsionaler busa.
⑤ Tingkatkan putaran mesin untuk menyesuaikan tekanan pompa berdasarkan kebutuhan pistol busa/monitor.
⑥ Putar katup proporsional untuk menyelaraskan dengan pengaturan lubang yang dikalibrasi pada pistol busa.
⑦ Buka katup masuk busa—proporsioner akan terus menerus menarik busa pada rasio yang ditetapkan.
(2) Hisap Busa Eksternal (Pasokan Drum)
Busa dikeluarkan dari drum eksternal melalui proporsionaler.
Tangga:
① Tutup katup saluran masuk tangki busa, buka tutup pipa T, dan sambungkan tabung hisap eksternal ke drum.
② Buka ventilasi udara drum, lalu ikuti langkah penghisapan internal.
(3) Busa Hisap Sendiri (Pasokan Pistol Langsung)
Pistol busa menyedot langsung dari drum melalui tabung hisap.
Tangga:
① Hubungkan salah satu ujung selang ke outlet pompa dan ujung lainnya ke pistol busa. Masukkan tabung hisap ke dalam tabung.
② Buka ventilasi udara drum.
③ Atur pistol busa ke
"pengisapan"
mode dan lanjutkan seperti di atas.
Pasca Operasi: Selalu bilas pompa, proporsionaler, pistol busa, dan pipa setelah digunakan.
Kesalahan Umum pada Sistem Busa dan Pemecahan Masalah
Truk pemadam kebakaran busa ISUZU mungkin menghadapi dua masalah utama:
Jenis Kesalahan 1: Tidak Ada Keluarnya Busa
Kemungkinan Penyebab |
Larutan |
① Proporsional busa tertutup |
① Proporsional terbuka |
② Tekanan air >0,049MPa, menghalangi hisapan busa |
② Gunakan sumber air <0,049MPa |
③ Ventilasi tangki busa tersumbat |
③ Bersihkan penyumbatan |
④ Nosel pengisian udara tertutup |
④ Buka nosel |
⑤ Katup saluran busa tersumbat/tertutup |
⑤ Buka katup atau bersihkan sumbatan |
⑥ Gasket tabung hisap longgar/rusak |
⑥ Kencangkan atau ganti paking |
Jenis Kesalahan 2: Kualitas Busa Buruk
Kemungkinan Penyebab |
Larutan |
① Pengaturan proporsional tidak cocok |
① Sesuaikan katup ke lubang terukur |
② Saluran masuk udara pistol/monitor tersumbat |
② Bersihkan saluran masuk |
③ Layar busa rusak |
③ Perbaiki/ganti layar |
④ Cairan busa yang terdegradasi |
④ Ganti dengan busa bersertifikat |
Anda mungkin tertarik dengan informasi berikut