axial piston pump vs gear pump

Quick Answer K3V112DP is the Kawasaki model of the main pump fitted to the Hyundai R210W-9S wheeled excavator. Read it in three parts:K3V — Kawasaki's variable-displacement, swash-plate type axial piston pump series. 112 — the displacement class, about 112 cc/rev per pumping section. DP — Double pump, Parallel type: two pumping sections in one assembly, arranged in a parallel con...

Quick Answer Fitting a new main pump to a CAT 329D is a 250 kg job, and how you do it decides whether the pump gives you its full service life or fails early. The sequence that matters is: confirm the pump → flush and renew filters → install clean → commission with settings checked → care for oil and temperature. Most "the new pump didn't last" cases trace back to something tha...

Quick Answer HPV102 is the Hitachi main-pump model used across the ZX200 / ZX210 / ZX230 / ZX270 class — but the model name alone will not get you the right pump, because the series comes in several variants (HPV102, HPV102GW, HPV102FW) and sits in a specific generation of Hitachi's line-up. It was introduced with the EX200-5 / EX220-5 and the early ZAXIS machines; the earlier generation use...

Quick Answer Five questions, five short answers — each is explained in full below.1. What is the A8VO107? It is a Rexroth designation for a bent-axis, variable-displacement axial-piston double pump of roughly 107 cc/rev per section, fitted as the main pump on the CAT 320B. The "8" family is Rexroth's double (twin) bent-axis version.2. Bent-axis vs swash-plate? In a bent-axis pump the cylinde...

Quick Answer The decision is not really "assembly versus parts" — it is "what kind of failure do you have?".Internal parts make sense when the damage is confined: a seal weeping, one identifiable item worn, and the rest of the pump still measuring within specification.A complete assembly makes sense when the damage is widespread or unknown: metal has circulated, several working surfaces are ...

Quick Answer 1. What is the A20VLO260? It is a manufacturer-style designation for the 374D's main pump — an axial-piston, variable-displacement pump of roughly the 260 cc/rev class. Read it in two parts: the letter-and-number prefix identifies the pump family and design, and the trailing 260 is the displacement class. On a mining machine this size, displacement is measured in hundreds of cc ...

Quick Answer Reviving an older Komatsu like the PC128UU-1 is usually the right economic decision — the machine is paid for, and it still does the work. The hard part is not the machine; it is finding the right pump without being sold the wrong one.On old machines, three things make selection harder than on a new one: part numbers get superseded, listings cross-reference numbers loosely, and ...

Quick Answer The Hitachi ZX850-3 / ZX870-3 travel device is the complete final drive that moves the machine — hydraulic motor, parking brake and planetary reduction in one unit. It is listed under the travel device number 9251681, and its own lubricant is listed under 4636857. The assembly weighs about 1,200 kg and packs in a 100 × 100 × 70 cm case.There are two things worth unde...