Dynapac CA 152 1998 Workshop Manual – Factory Axle Service Specs

Description

Working on a vibratory roller without the factory documentation is a good way to waste a Saturday and snap bolts. I’ve seen guys guess on a brake adjustment, and then wonder why the axle locks up at the next job. This Dynapac CA 152 1998 Workshop Manual gives you the exact procedure Svedala wrote for their own techs. 57 pages, printed in Sweden, covering the wheel axle for part numbers 37 15 93 and 37 29 40. If you are pulling the planetary gears or setting the differential preload, you need this PDF open on your bench—not some third-party rewrite that fudges the numbers.

Brake Check and Adjustment on the CA 152

Turn to page 8 for the brake check procedure. That page tells you the measurement point and the minimum thickness before you replace the linings. Page 9 walks you through the adjustment—no guessing, just a feeler gauge and the correct gap. The manual uses the warning symbols from page 4: a triangle for personal safety, a circle for component damage. If you skip the brake section, you are risking an axle that won’t hold under load. The Brake chapter includes disassembly on page 16 and assembly on page 17, with exploded views later in the book. I’ve had to redo a brake job because a junior tech used aftermarket specs. Don’t be that guy.

Planetary Gears – Disassembly and Assembly

Pages 12 and 13 cover disassembly of the planetary gears. The manual calls out the special tools by part number—no improvisation with a pickle fork. Pages 14 and 15 are the assembly sequence, with torque values for the ring gear bolts and the sun gear nut. The torque table on page 36 gives you the final numbers in Nm and lbf-ft. If you reuse a circlip without checking the wear limit, the planet carrier can shift sideways inside the roller frame. I’ve seen it. This manual also includes a conversion table on page 36 so you can swap between metric and imperial without pulling out a phone calculator.

3 Reasons to Trust the OEM Torque Specs

First, the torque table on page 36 is printed directly from the factory—no guesswork, no rounding errors. Second, the manual specifies the grade of fasteners (8.8, 10.9) and the lubrication condition (dry or oiled). Third, the differential measuring section (pages 27-31) gives you the preload shim selection procedure using dial indicators and gear marking compound. Aftermarket manuals skip the measuring steps and tell you to “tighten until snug.” That is how you wipe out a crown wheel set. Borrow a copy of Manual Transmission if you need a refresher on gear backlash concepts, but use the Dynapac data for the actual shim stack.

Differential Measuring and Assembly (Pages 27-31)

This is the meat of the wheel axle rebuild. You have two carrier variants: P/N 37 15 93 (pages 21-23) and P/N 37 29 40 (pages 24-26). The measuring section on pages 27-31 covers carrier disassembly, shim selection, and final assembly for both. The contact pattern check on page 43 shows acceptable and rejected wear patterns—run the roller with a bad pattern and the differential will howl after 50 hours. The manual even tells you which special tools (listed on pages 37-42) are required for the pinion depth adjustment. I keep a set of those tools in my top drawer; they pay for themselves the first time you avoid a comeback.

Trouble Shooting: Factory Procedure

Pages 44 and 45 list the common problems: noise from the planetary, oil leaks at the wheel seal, erratic brake function. Each symptom has a cause and a fix referenced to the earlier chapters. The trouble shooting is written in the same direct language as the rest of the manual—no hand-holding, no fluff. If you are a home garage enthusiast who bought a used CA 152, start with the preventive check-up on page 11 before you disassemble anything. That check-up alone can save you chasing a phantom problem.

Related Manuals for Dynapac Roller Owners

• Dynapac CP142, W3020 2007 Workshop Manual – OEM Electric Diagrams
• Dynapac CP132 2001 Workshop Manual – Factory Wiring & Electrical Diagrams
• Dynapac CP 132 2000 Workshop Manual – Traction, Drain, Steering & Brake

For a deeper dive into gear train theory, check out Manual Transmission—it covers the basics of gear ratios and lubrication that apply to any final drive.

Frequently Asked Questions

Does this manual cover the brake system?

Yes. Brake check on page 8, adjustment on page 9, disassembly on page 16, assembly on page 17.

What torque values are provided?

The torque table on page 36 covers all major fasteners in the wheel axle, including planetary gear bolts, differential carrier bolts, and wheel lug nuts. Values are given in Nm and can be converted using the table on the same page.

How do I know if this manual applies to my axle part number?

Open the PDF to page 2. The manual is valid for wheel axles with part number 37 15 93 and 37 29 40. The axle type plate is located on top of the differential housing—check the PIN (serial number) against the manual’s listing. If your axle has a different part number, you need the specific workshop manual for that variant. The CA 152 roller uses both axle types depending on the build year; the 1998 edition covers both.

Is this manual only for professional mechanics?

No. It is written for anyone with basic tools—home garage enthusiasts who read specs before turning a wrench. The safety section on page 4 is mandatory reading for all skill levels.

Stop guessing and start using the data that keeps the axle together. Access the Factory Manual and put the 57 pages on your tablet or print the pages you need. That torque table on page 36 will pay for the manual the first time you tighten a differential carrier bolt to the correct 230 Nm.