Description

Nichiyu 13P, 15P, 18P 1999 Workshop Manual

If you’ve ever torqued a bolt to a spec you weren’t sure of, you know the risk. Stripped threads, cracked housings, or a forklift that leaks hydraulic fluid on the shop floor. That’s what happens when you trust a generic PDF from some third-party site. The Nichiyu 13P, 15P, 18P 1999 Workshop Manual cuts that guesswork. It’s the same book the dealer techs pulled from the shelf when I started in this trade. 157 pages of factory-original procedures, torque values, and assembly steps. No aftermarket re-interpretations. No missing pages.

157 Pages of Factory Procedures

This manual covers the 60 Series FBT13P, FBT15P, and FBT18P forklifts. You get 18 chapters, starting with the introduction that explains the model coding system—critical if you’re trying to figure out whether your truck has pneumatic or cushion tyres. The front axle chapter alone runs from page 1-1 through front wheel hub removal, reduction gear service, and hub adjustment. Rear axle includes separate write-ups for FBT10P/13P and FBT15P/18P, including the power steering cylinder. Every step is laid out in the order I’d do it on the lift: removing, disassembling, inspecting, assembling, installing. No skipping around.

Torque Specs from the Factory

Page 0-8 lists the tightening torque of bolts in the introduction. That page is your insurance policy. I’ve seen too many home mechanics grab a torque wrench and assume 80 ft-lb is universal. Nichiyu gives you the spec in the manual’s own units—you’ll find the exact values for front axle bolts, motor mounts, and hydraulic line fittings. The Motor chapter (chapter 10) includes a dedicated tightening torque table under section 10-4. You don’t have to hunt; it’s right there in the assembly instructions. Following those numbers means the mast stays upright and the wheels stay attached.

What Torque Values Are Listed?

The manual contains multiple torque specifications across the drivetrain and hydraulics. In the Motor chapter, the assembling section lists tightening torque for the field coil insulation test and brush holder. The front axle reduction gear and hub assembly have their own torque values. Even the brake linkage chapter specifies the torque for master cylinder bolts and brake pedal pivot points. If you’re working on the control unit or hydraulic chopper, the chapter on control unit and MPU board (chapter 11) doesn’t list torque but does specify FET compression and diode installation procedures that rely on proper tightening. Cross-reference with the general bolt torque from the introduction.

Front Axle Disassembly: Following the Manual

Chapter 1 walks you through the entire front axle. Start with the structure diagram, then service data and specifications. Troubleshooting section helps you isolate hub noise or reduction gear failure. The removing procedure on page 1-4 tells you which fasteners come off first and which need a puller. Disassembling is separate from inspection—you don’t get tempted to skip the wear check on the hub bearings. Assembling includes the hub adjustment step, which is where most guys mess up the preload. Then installation. Each step references the right torque and the right order. That’s why you pay for OEM—they tested this sequence on thousands of trucks.

Motor and Control Unit: Step-by-Step

The Motor chapter (10) covers traction motor, hydraulic motor, and power steering motor removal, disassembly, inspection of armature, carbon brushes, field coil, and diode (for non-chopper trucks). The control unit chapter (11) lists applicable parts for CU51-89 and CU51-87, including hydraulic chopper unit CB42-33 and MPU board PBC84-30. Removal procedures caution you about the diode heat sink and FET components. Inspection covers diodes, FETs, and condensers. Assembly steps specify installation of current sensor and pre-excitation board. For a forklift that doesn’t move or lift, start here. The manual gives you the exact test points and part numbers.

Why OEM Beats Aftermarket Nichiyu Documentation

Aftermarket manuals reprint tables they hope are right. This one was printed March 1999 by Nippon Yusoki Co., Ltd. in Kyoto, Japan—Pub. No. 99W-2101. The table of contents matches the physical book. Page numbers are correct. The torque values were validated on assembly lines. I’ve seen aftermarket manuals call for the wrong oil viscosity in the hydraulic tank (chapter 7-2) or miss the caution about replacing hoses in the oil piping section. This manual has a dedicated caution block for hose replacement. That’s the difference between a job done right and a callback.

For additional drivetrain insight, refer to Manual Transmission documentation for gearbox rebuild logic. Similar hydraulic motor procedures apply to power steering circuits described in Manual Transmission.

Frequently Asked Questions

Does this manual include wiring diagrams?

No. This is a workshop manual, not an electrical service manual. Wiring diagrams are not in the TOC.

Can I use this manual for the FBT10P model?

The manual covers the 60 Series FBT13P, 15P, and 18P. The rear axle section lists separate procedures for FBT10P/13P and FBT15P/18P, so some content applies to the 10P. However, the TOC does not list the 10P as a primary model. Check the model coding system on page 0-1 to confirm compatibility. The 10P has a 1000kg capacity, while the 13P is 1250kg. Some service data like tire size and torque specs may differ. Cross-reference with a dedicated 10P manual if available. The manual is specific to 13P-18P load ratings, so use it only after verifying component similarities.

Access the Factory Manual to get the full 157 pages of genuine Nichiyu procedures. No reprints. No third-party edits. Just the OEM book that has kept these forklifts running for decades.

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