Description

Dynapac CA-25, CA-25A, CA25S, CA-25D, CA-25PD 1987 Parts Catalog

Let me tell you something about this Dynapac CA-25, CA-25A, CA25S, CA-25D, CA-25PD 1987 Parts Catalog. If you’re turning wrenches on these vibratory compactors, you need this book on your bench. Not a copy, not a scan from somewhere – the original OEM print from 1987. I’ve seen guys try to use aftermarket hydraulic schematics on a CA-25 and blow a seal because the port numbers don’t match. That’s time and money down the drain. This catalog has 270 pages of exploded views and part numbers straight from the factory.

Page 3 gives you the general arrangement – drum assembly, hydraulic circuit, cooling fan, fuel system, all laid out in one view. The index is right in front. You want the blade control valve? Page 24. Cab cleaner bar pad drum? It’s in there. This isn’t a generic repair manual – it’s a parts catalog from the guys who built the machine. Dynapac themselves.

General Arrangement: What the Index Shows

Page 3 is your roadmap. It maps every major system: the drive axle, double joint, steering valve, steering cylinder, safety lock assembly, transmission and motor assembly, hydraulic pump, hydraulic oil reservoir, electrical wiring diagrams, fuel systems, control valve for vibration, cooler by-pass, cab. You get the part numbers for every single component. Need a seal for the steering valve? The exploded view on page 148 shows you the exact seal, retaining ring, and the part number. No guessing which O-ring fits.

Vibration Control Valve and the Cooler By-Pass Circuit

Two systems that bite guys who skip the OEM book: the drum amplitude control valve and the cooler by-pass. The catalog breaks the control valve-vibration into separate pages with indexed parts. You see the spring, the spool, the body – all with Dynapac part numbers. The cooler by-pass section shows the routing and the fittings. If you order a generic by-pass valve, the thread pitch won’t match. I’ve seen it. Use this catalog to get the right part the first time.

Wiring Diagrams and the Electrical System

Electrical problems on a compactor will stop a job faster than anything. Pages 70 through 79 give you the full electrical wiring diagrams – headlights, heater and defroster, engine emergency shutdown, the whole harness. The cab section includes the cab assembly, control lever, console assembly. If the machine won’t crank, trace the wiring from the battery to the starter. The schematic is right there. No aftermarket hack job. DYNAPAC CA-25 Series 1987 Parts Catalog is the only wiring reference you need.

Does This Catalog Cover the Engine and Fuel System?

Yes. The engine and pump assembly is covered, along with the exhaust and muffler assembly. The fuel system – pages 20 and 21 – lists the fuel tank, lines, filters, and all fittings. If you’re rebuilding a CA-25D or CA-25PD, the fuel system parts are identical to the base CA-25 models except where noted. The catalog calls out differences. For a deeper look at the fuel system on a specific variant, check the DYNAPAC CA-25 Parts Catalogue – Section: Sistema De Combustível P/Motor.

Parts Ordering: How to Use This Book Correctly

The introduction on page 2 explains the numbering system. Each part has an index number, a part number, a description, and a quantity. Indented items are part of the subassembly above. Example: a valve steering assembly has a seal and a retaining ring indented under it. You order those as a group. Always include the compactor model and serial number when ordering. The manual says so – and I back that. Dynapac PL2000LS Parts Catalog (258 Pages) – OEM Factory Spec is another good reference if you work on larger rollers, but for the CA-25 series, this is the one.

Aftermarket parts catalogs? I’ve seen technicians use a generic hydraulic circuit diagram and blow a cooling assembly seal because the port orientation was different. Don’t be that guy. This OEM catalog gives you the exact exploded view. You see every bolt, every washer, every hose. And if you need context on why OEM documentation matters in heavy equipment, read the Automotive Industry Overview.

3 Systems You Can’t Afford to Misdiagnose

First: the hydraulic system. The hydraulic assy., hydraulic circuit for drum amplitude, drive, strike-off blade, and vibration pilot – all separate sections. The hydraulic schematic on page 90 shows every valve and line. Second: the drive hub and drive plate assembly. Page 174 covers the double joint and drive axle. If those parts are wrong, the roller won’t move. Third: the cab and control assembly. The cab cleaner bar pad drum assembly, control lever, and foot bemat – all listed with part numbers. A misordered control cable costs you a day.

Can I use this catalog for the CA-25D model?

Yes. It covers CA-25, CA-25A, CA25S, CA-25D, and CA-25PD.

Does it include torque specs?

It is a parts catalog, not a service manual. You won’t find assembly torque values. But every bolt, seal, and gasket is listed with its part number. For torque specs, you need the matching service manual.

Are wiring diagrams included?

Yes, electrical wiring diagrams are on pages 70-79. They show the shipping configuration and full harness. If you’re troubleshooting a no-start, start there.

How do I order parts using this manual?

Use the index number and part number from the exploded view. Match the description. Include the machine serial number when you call your dealer. The introduction on page 2 explains the numbering system. I’ve used this method for twenty years – it works.

If you work on Dynapac CA-25 series vibratory compactors, stop hunting through blurry scanned copies. Get the original OEM 1987 parts catalog. 270 pages, factory specs, no reprints. Access the Factory Manual now and have the right part numbers on your bench before you pull wrenches.