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Résolution de problèmes de pompe hydraulique Surchauffe et perte de débit dans les pelles Komatsu PC1250
A technical guide on diagnosing low hydraulic pressure, oil overheating, and swashplate response delay in Komatsu PC1250-7 and PC1100-6 main hydraulic pumps.
Pompe hydraulique principale Komatsu PC1100 et PC1250 (série 708-2H / 708-2L) : Sélection, équivalence et analyse des défaillances
Engineering guide covering application scenarios, part cross-referencing (708-2H-00322, 708-2L-00522), and root-cause failure analysis for Komatsu PC1100-6 and PC1250-7 main hydraulic pumps.
Pourquoi une pompe hydraulique s’use-t-elle rapidement après son remplacement ?
Replacement excavator hydraulic pumps often fail prematurely because contamination, incorrect installation, poor oil/filter condition, system pressure or heat issues, and other hydraulic component problems remain unresolved. Proper cleaning, inspection, installation, and commissioning are essential to prevent repeated pump failures.
Pompe hydraulique d’excavatrice vs vanne de commande principale : comment identifier le vrai problème ?
This blog explains how to distinguish between excavator hydraulic pump and main control valve problems by comparing symptoms, such as whether all functions or only specific circuits are affected. It also outlines a systematic diagnostic procedure involving oil checks, filters, pressure testing, function comparison, and valve inspection.
Pompes hydrauliques pour les excavatrices de la série AP2D REXROTH (UCHIDA)
This guide covers the Rexroth (Uchida) AP2D series of tandem variable-displacement hydraulic pumps for 1.2–8 tonne mini and compact excavators, including AP2D12 through AP2D36 models rated at 350 bar and 3500 rpm. It provides OEM application references, cross-reference codes, and buyer guidance for sourcing exact pumps, control variants, and spare parts.
Quelles sont les causes du bruit dans la pompe hydraulique d’une excavatrice ?
This blog explains common causes of noise in an excavator hydraulic pump, including air ingestion, cavitation, low or contaminated oil, worn bearings, blocked filters, and incorrect oil selection. It also outlines symptoms and preventive maintenance steps to reduce downtime and extend pump life.
