Description

Daewoo B13T-2, B15T-2, B18T-2 2002 Technical Manual

I’ve lost count how many lift trucks come into my shop with a fried controller because some tech guessed at the wiring or skipped the capacitor discharge step. If you’re working on a Daewoo electric lift truck, especially the B13T-2, B15T-2, or B18T-2 models, you need the actual factory specs – not some aftermarket reprint that leaves out critical torque values or safety warnings. This Daewoo B13T-2, B15T-2, B18T-2 2002 Technical Manual is the real deal: 133 pages of OEM documentation straight from Daewoo.

Daewoo B13T-2, B15T-2, B18T-2 2002 Technical Manual: What’s Inside

Page 1 lists the models and part numbers for both 36V (P/N A154600, A154701) and 48V (P/N A154600, A154240) systems. The manual is divided into three main sections: Specifications, Systems Operation, and Testing & Adjusting. Every chapter comes from the original factory binder – not a scanned and OCR’d mess that loses the fine print. You get the MicroController Control System breakdown, component measurements, and the full index starting page 4.

Systems Operation: Drive Circuit and Hydraulic Pump Motor Circuit

This section walks through each circuit in plain language backed by factory schematics. The Drive Circuit chapter covers the Bypass Circuit, Control Circuit, Current Limit, Electrical Braking (Plugging), Failure Protection, Flyback Circuit, Power Circuit, and Thermal Protection Circuits. If you’ve ever had a truck that dies under load or a hydraulic pump that won’t kick in, this is where you start. The Hydraulic Pump Motor Circuit includes the Lift Circuit, Lift Control Circuit, Power Steering Circuit, and Power Steering Idle. You also get the Location of Control Panel Components and the Logic Unit pinouts. I’ve seen techs waste three hours tracing a horn circuit when the DC-DC Converter section on page [DATA NEEDED] solves it in ten minutes.

Built-In Diagnostic Operation: Error Codes and Run-Time Tests

This manual doesn’t just tell you where the parts are – it gives you the built-in diagnostic procedures that let the truck talk to you. Accessing Stored Error Codes, Erasing Codes, Run-Time Diagnostics while the truck is moving, and Self Diagnostics when it’s parked – it’s all in here. There’s a Quick Diagnostic Procedure that will save your butt on a customer’s truck that’s down. The On Board Run-Time Diagnostics section even covers the Central Vehicle Monitoring System (CVMS) and the pictorial symbols. You need to understand the Wait Mode and Steer Angle Control? It’s laid out chapter and verse.

Component Tests: Driver Board, Transistors, and Contactors

I’ve replaced enough driver boards to know that testing off-vehicle vs on-vehicle gives different results. This manual includes both procedures. You get the sequence for testing Transistors DTR1, DTR2, PTR1, and the replacement steps. The Contactor section covers the pull-in and hold-in coils, and there’s a whole page on Head Capacitor discharge (page 2 – read the safety warnings before you touch anything). Current Sensor tests, Diode Replacement, Resistors DR1, DR2, PR1 – all with OEM values. The Logic Unit Quick Reference Voltage Check table is worth the price alone when you’re chasing a phantom voltage drop.

Brake and Drive Motor: Torque Specs and Adjustment Procedures

The second half of the manual covers the mechanical side: Brake, Drive Motor, Final Drive. General Tightening Torques are listed – not generic “tighten securely” but actual ft-lbs values for each fastener. You get the Armature Terminal Test, Brush Holder Test, Brush Life Estimate, Commutator Inspection, and Thermal Switch Tests. If you’re rebuilding a Drive Motor or swapping a Final Drive, the Disassemble and Assembly section has the step order and the torque sequence. Missing a torque spec on a wheel mounting bolt can kill someone – this manual has it.

OEM vs Aftermarket: Which Manual Stays on the Workbench

Aftermarket manuals are fine for getting a rough idea, but they don’t carry the factory’s liability. This is a genuine Daewoo Technical Manual published in 2002. The specifications, torques, pressures, and adjustments are based on the engineering data available at the time. If you use an aftermarket copy and a bolt backs off, you can’t point to a reprint and say “that’s what it said.” OEM documentation is your insurance. I’ve got a shelf full of these, and I still reach for the factory binder when the diagnostic tree gets complicated.

Frequently Asked Questions

Does this manual cover the 36V and 48V systems?

Yes, it covers both voltage variants with separate part numbers on page 1.

How do I discharge the head capacitor safely?

The manual includes a specific procedure under Component Tests – Capacitor (Head). The short version: isolate the battery, wait at least five minutes, then use a high-wattage resistor (typically 100Ω, 50W) across the capacitor terminals. Do not short it with a wrench or screwdriver; that arc can weld your tool to the terminal and blow the controller. Follow the factory steps exactly because the stored energy can exceed 200 joules even after the key is off. I always double-check with a voltmeter before touching any power connections.

If you work on other Daewoo models, check out the Daewoo B13T-2, B15T-2, B18T-2 1999 Service Manual – OEM Factory Specs for earlier versions, or the Daewoo BR10S-2, BR13S-2, BR15S-2, BR18S-2, BR20S-2 Technical Manual for similar electric trucks. For a different platform, the Daewoo D20S-3 Technical Manual 2004 61 pages Power Train covers internal combustion powertrains. For general background on engines, see Internal Combustion Engine and Manual Transmission.

Get the factory data on your bench. Access the Factory Manual now.