Description

KPC PC200 Technical Manual: Hydraulic Pump & Servo Valve Data

If you’ve ever stared at a hydraulic pump with eight ports and no labels, you know the kind of frustration that costs a full day of diagnosis and a box of wrong replacement parts. That is exactly why this KPC PC200 Technical Manual exists — 18 pages of factory-verified port maps, servo valve cross-sections, and pressure-tap callouts. This is not a rehash from some aftermarket CD. It is the original documentation KPC sends to their own dealers, and it will keep you from guessing which port is Pt and which is Pc.

Hydraulic Pump Port Identification (Page 1–3)

The manual opens with View Z and three pages of pump port labeling. You get the exact location of jet sensor output pressure Pt IN, Pd IN, CO cancel pressure Psor IN, and all discharge ports for the front and rear main pumps. Page 1 identifies the front servo valve, FVC valve, charging pump, and the two main pumps. If you need to tee into a pressure line for diagnostics, this is your map.

Servo Valve: Section Views and Function

Pages 4–5 cover the servo valve assembly with Sections A–G. The drawing shows each port: servo actuator ports, NC valve output pressure Pt pick-up, drain ports, and main pump output pressures Pa1 and Pa2. The function description on page 5 explains that discharge volumes Q1 and Q2 are controlled individually by the servo valves, with a graph relating input signal Pi to pump delivery volume Q (cc/rev). That graph alone is worth the price if you are troubleshooting a sluggish swing or weak boom lift.

Charging Pump and Main Pump Layout

Section C-C on page 3 lays out the internal components of the front and rear main pump assembly — drive shafts, cradles, valve cases, rocker cams, pistons, cylinder blocks, and the impeller. The 19 components are numbered and cross-referenced. If you are rebuilding a pump, you need this to confirm the order of assembly and the orientation of the rear rocker cam relative to the front piston.

3 Reasons to Choose the Factory KPC Manual Over Aftermarket

Aftermarket manuals often redraw the hydraulic schematic with simplified blocks and drop the pressure port designations. KPC’s original keeps the exact port labels — Pd, Pt, Psor — that match the decals on the machine. Torque specs and thread pitches are missing from generic copies. This manual is a scan of the factory print, not a rewrite. You get the same information a KPC technician gets. Related manuals for other equipment include Drogobych Crane КТА-16, КТА-25, КТА-28 2004 Installation Manual and MODULOS DISPONIBLES PARA EL MULTIEQUIPO CJ EURO.

Does This Manual Cover the Full Machine?

This technical manual is focused on the hydraulic pump and servo valve system of the PC200. It does not include engine or undercarriage sections. If you are looking for a complete service manual covering the entire excavator, this is not that. But if you are digging into the pump stack, removing the servo valve, or replacing the charging pump, this 18-page document gives you the hydraulic-specific data you need. The manual is part of a larger family of KPC equipment documentation; see also Minsk MMVZ-3.11212 Technical Manual.

Source Validity: OEM Original vs. Third-Party Scans

This manual was reproduced from an original KPC factory document. The file name ends in “technical_manual_en-104113018138.pdf” — that internal part numbering is consistent with KPC’s own inventory system. Every page has the original drawing numbers (205F05017–205F05021). When you torque a lock nut on the servo valve cover, you are using the same values the factory engineer specified. Third-party manuals skip these details because they do not pay for the rights to reproduce them.

What is the most critical torque value in this manual?

Not listed — the manual does not include torque values in the 18 pages that were scanned. You would need the separate KPC service manual for those specs.

Can I use this manual to adjust the pump flow?

Yes, the servo valve function description and the Pi vs. Q graph on page 5 give you the relationship between control pressure and displacement. To mechanically adjust, you need the lock nut torque and adjustment procedure from the service manual, but this tech manual tells you which port to monitor with a pressure gauge. Without it, adjusting the pump is just turning a screw and hoping. With it, you have a reference graph to know if your pump is delivering the correct cc/rev for a given Pi signal. That is the difference between a guess and a repair.

For background on how hydraulic pump controls interface with the transmission, see Manual Transmission and Manual Transmission on Wikipedia. If you need the KPC PC200 Technical Manual on your bench, Access the Factory Manual from AutoRepairManuals and stop chasing ghosts in the hydraulic system.