Description

Clark-hurth 100, 164 Service Manual – 330 Pages of Factory Specs

If you’re tearing into a 28000-series transmission without the factory numbers, you’re gambling with expensive hard parts. This Clark-hurth 100, 164 Service Manual is the same binder the dealer techs used – 330 pages of OEM data, not a third-party summary. Every torque spec, every clutch pack clearance, every step for engine removal came straight from Clark’s engineering group. After 28 years in the shop, I’ve seen too many guys trust a reprint and end up with a leaking converter or a stripped ring gear. This manual stops that.

Cummins Diesel Engine: Troubleshooting and Removal

GROUP 00 dives straight into the Cummins diesel – troubleshooting charts, engine removal procedure, and the full specification sheet. You get the factory firing order, valve lash settings, and the torque sequence for the cylinder head. No guesswork on whether the manual covers the 4-cylinder or 6-cylinder variant; it’s all there. The engine oil change procedure in Periodic Service also lists the correct filter part numbers and capacity in quarts. If you’re pulling the engine for a rebuild, the section on ENGINE REMOVAL walks you through lifting points and hardware disconnection step by step.

28000 Series Transmission – Clutch and Gear Arrangement

GROUP 06 is the thickest section in this manual because the 28000 three-speed transmission is where most of the money lives. You get exploded views of the low clutch group, forward and 2nd clutch group, reverse and 3rd clutch group – all with the OEM torque values for the clutch housing bolts. The manual includes the 32-SCREW RING GEAR INSTALLATION PROCEDURE and the non-asbestos thirty-two bolt torque converter drive ring gear specs. If you skip the proper installation of Teflon piston rings and expander springs, the transmission will slip. This manual tells you exactly how to avoid that. For reference, external articles on manual transmission theory can help, but they don’t replace the factory procedure.

Critical Fastener Torque Checks: Why This Manual Matters

Under Periodic Service you’ll find a dedicated subsection called Critical Fastener Torque Checks. This isn’t a generic “tighten to spec” note – it lists the specific bolts that must be torqued after every 250-hour service interval: wheel lug nuts, drive plate bolts, converter housing fasteners. The values are in foot-pounds with the grade of hardware required. Aftermarket manuals often round these numbers or skip the bolt grade. Clark-hurth doesn’t. You get the exact torque for the 16 screw and 32 screw ring gear installations. Use those numbers or risk a catastrophic failure at full lift.

Does This Manual Cover the Hydraulic System and Wet Disc Brakes?

Yes. The manual includes Group 24 for wet-disc brake system maintenance and Group 29 for hydraulic pump, sump, and filters. You’ll find accumulator charge procedures, hydraulic tank breather inspection, and the bleeding sequence for the wet disc brakes. The section on ACCUMULATORS explains nitrogen pre-charge pressure and the correct test port location. Lift mechanisms and controls are covered under Upright/Carriage Maintenance, including chain adjustment checks and load roller replacement. For the tilt cylinders and steering system, Group 32 and Group 25 provide rebuild specs.

3 Reasons to Choose OEM Documentation over Aftermarket

First, the manual is ISO 9001 certified and marked “Intended for CLARK dealers only” – that’s the same source the dealership training uses. Second, every torque value in Group 06 for the transmission and Group 00 for the engine came from Clark’s engineering release, not a photocopy of a photocopy. Third, the safe maintenance procedures in Group SA are written specifically for these models, covering lifting points, blocking, and towing. Aftermarket reprints often crop out critical warnings or substitute generic illustrations. This manual keeps the full fold-out diagrams and original CLARK numbering. If you’re already working on Clark-hurth equipment, check these related shop manuals: Spicer Clark-hurth HR Service Manual – Factory Specs for Heavy-Duty Transmission, Clark-hurth 55A SERIES II Service Manual – 136 Pages of Factory Specs, and Clark-hurth SM-715, TMX12-25, EPX16-20s 2007 Service Manual – 502 Page OEM Facto. Each one follows the same no-compromise factory format.

Safe Maintenance – Group SA Lifting and Blocking Points

Group SA is the safety backbone of this manual. It covers safe parking, jacking procedures, and the correct blocking points for the 100 and 164 chassis. If you’ve ever seen a lift truck fall off jack stands because the blocking point was wrong, you know why this matters. The manual shows you exactly where to place the stands under the steer axle and frame rails. It also includes towing instructions – which end to lift, how to secure the drive line, and when to disconnect the transmission. Skip this section and you’re asking for a shop accident.

One more thing about manual transmission rebuilds: the exploded views in this manual are labeled with Clark-hurth part numbers, not generic descriptions. When you order replacement clutch plates or seals, you use the exact part number from the book. That saves the back-and-forth with the parts counter.

Q: Does this manual cover the C-270 torque converter?

A: Yes. The 28000/32000 series transmission section includes the C-270/C-320 converter drive plate installation instructions with torque specs.

Q: What about the 32-screw ring gear installation procedure?

A: The manual dedicates a full subsection to the 32-SCREW RING GEAR INSTALLATION PROCEDURE under Transmission. It details the bolt tightening sequence, the required torque in foot-pounds, and the inspection criteria for the ring gear teeth. There is also a separate procedure for the non-asbestos thirty-two bolt torque converter drive ring gear. These procedures are critical because using the wrong torque or skipping the cross-pattern sequence will cause the ring gear to loosen under load, leading to converter damage. The factory also specifies which Loctite compound to apply on the bolts. Aftermarket manuals often omit the compound specification or list a generic torque that doesn’t match the Clark-hardware heat treatment. You will need to reference the drive gear replacement procedure if the ring gear is damaged – the manual covers that too.

You don’t need to hunt down a dealer or trust a forum post. The original factory data is available here. Access the Factory Manual and get the torque specs, the safe maintenance steps, and the complete transmission rebuild procedure – exactly as Clark-hurth wrote it for their service network.