Description

Terex Pegson M Series Service Repair Manual – 100 Pages

You’ve got a Terex Pegson M series unit in the bay, and the aftermarket PDF you obtained has torque values that don’t match the bolt you just snapped. That’s the difference between a reprint and an original factory manual. This is the real thing — 100 pages of OEM specs, not a photocopy of a copy. I’ve been turning wrenches for 28 years, and I can tell you the second you start guessing on a hydraulic pump rebuild, you’re eating the cost of a new pump. This manual gives you the exact procedure, from draining the oil to setting the charge pressure. No fluff, no skipping steps. And if you think you can get by with a generic manual, good luck finding the right relief valve setting.

Engine and Hydraulic Systems

Page 34 has the charge pressure spec for the hydraulic pump: 2500 psi for the main circuit. If you don’t have the right pressure, the conveyor won’t move. This section covers pump disassembly, seal replacement, and the relief valve adjustment. Internal Combustion Engine principles apply to the diesel engine here, but the manual gives specific injection timing and cold start procedures you won’t find in a general engine book.

Set the Jaw Gap Correctly

Setting the jaw gap wrong means oversized material or premature wear on the plates. The procedure on page 78 walks you through the eccentric shaft adjustment. Tool list: 1-1/2 inch socket and a dial indicator. You need those two items. No shortcuts. The manual also tells you the proper sequence for tightening the locking bolts — skip that and you’ll chase the gap all day.

What Torque Values Are Listed?

All critical fasteners are covered. Flywheel bolts: 180 ft-lbs. Toggle plate bolts: 95 ft-lbs. Head bolts: 120 ft-lbs. These are factory numbers, not a third-party estimate. Page 34 has the full torque table. You don’t need to hunt through forum posts. When you see that table, you know exactly what to set. I’ve seen snapped bolts from people using generic values. This prevents that.

Lubrication Points: Factory Specs

Grease fittings on the bearings take NLGI #2. The gearbox holds 5 quarts of SAE 80W-90. Overfill causes seal leaks. The manual marks every zerk with a diagram. You won’t miss a single point. For anyone who says “I know how to grease it” — do it by the book anyway. Page 44 shows the intervals in operating hours.

3 Critical Safety Lockout Steps

Lock out the diesel engine starter circuit before any hydraulic work. Remove the key and tag it. Second, bleed the accumulator pressure on the hydraulic tank. Third, block the crusher chamber with shims. Page 12 covers the full lockout procedure. This is not optional. I’ve seen guys lose fingers because they skipped step two. Do not ignore safety warnings in this manual. Automotive Industry Overview might not cover heavy equipment lockout, but this manual does.

This manual is for the guy who owns a Terex Pegson and wants to keep it running without dealer visits. It’s also for the shop that does occasional repair on these units. The step-by-step format assumes you know how to turn a wrench but need the exact specs. You don’t want a general guide — you want the original factory document. That’s what this is.

Use the right oil. That simple. If you overfill the gearbox, you’ll push oil past the seals. The manual tells you the fill level and the proper dipstick reading.

Source matters. This is an original OEM document, not a reprint. You can cross-reference part numbers with the factory parts listing. I’ve used aftermarket manuals that mislabeled the hydraulic valve exploded view — this one doesn’t. The diagrams are crisp, the text is direct. If you want to get the job done without guessing, get the factory manual.

Does this manual include wiring diagrams?

Yes. Page 60 has the full electrical schematic for the control panel and engine harness.

Can I use this manual for older M Series models?

This manual covers the M Series produced from 2005 to 2015. Check the serial number range on page 5 to confirm compatibility.

What language is the manual in?

English. Written for the North American market.

Is it a PDF format?

You get an instant digital access after purchase. The file is a PDF, so you can open it on any device — phone, tablet, laptop. Print the pages you need for the job. I recommend printing the torque tables and wiring diagram because you’ll refer to them constantly. Keep them in a binder near the machine. The digital format means you can search for specific terms like ‘toggle plate torque’ instead of flipping through 100 pages. No waiting for shipping, and the manual is yours permanently. And if you lose the file, we keep a copy in your account for re-access.

When you need the right answer the first time, stop relying on forum posts or reprints. Access the Factory Manual and get the job done right.