BT Prime-Mover OE35 Order Selector Service Manual – 24V and 36V Order Picker Repair Guide
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Complete BT Prime-Mover OE35 Order Selector service manual, doc 301460-003. Covers 24V and 36V trucks: drive motor, transmission, brakes, EV100 LX SCR control, hydraulics, 2- and 3-stage masts, and Micro 70 wire guidance. 332-page PDF workshop guide.
Description
BT Prime-Mover OE35 Order Selector Service Manual
This is the complete BT Prime-Mover OE35 Order Selector Service Manual, document number 301460-003, for the 24-volt and optional 36-volt battery-powered counterbalanced order selector trucks. It is the workshop-level document written for technicians who actually work on the machine, and it follows the OE35 the whole way through: drive motor, double-reduction transmission, brake and wheel system, EV100 LX SCR traction control, duplex steering and brake-release pump, hydraulic lift circuit, two- and three-stage masts, and the Micro 70 wire guidance system.
When an OE35 will not travel, will not lift, throws a status code, or drifts off the guidewire, the answer is almost always a number in this book – a brush minimum, a relief setting, a torque value, a shim clearance, a status-code meaning. This is where those numbers live.
File Details
- Manual type: Service Manual (workshop / repair)
- Brand: BT Prime-Mover
- Model covered: OE35 Order Selector
- Document number: 301460-003
- Electrical systems covered: 24 V and optional 36 V
- Language: English
- Page count: 332 pages
- File format: PDF
- Publisher: BT Prime-Mover, Inc., Muscatine, Iowa
- Publication dates referenced: 1996-1997
Chapters Covered
- BT Standard Codes, Warning Levels, Prohibitory and Ordinance Symbols
- Introduction and How the Service Manual Is Organised
- Machine Information – OE35 Presentation, Intended and Forbidden Applications, Truck Data, Dimensions, Data Plate, U.L. Construction Type
- Main Components – Steering Wheel, Parking Brake Pedal, Key Switch, Emergency Stop, Pallet Clamp, Start Switch, Steering Direction Indicator, Fork Raise and Lower Switches, Horn, Hydraulic Pump Unit, Solenoid Valve, Battery, Drive Unit with Brake
- Inch (SAE) and Metric Fasteners – Nomenclature, Threads, Strength Identification, Grade and Property Class Markings, Torque Nut Designations, Fastener Torque Values
- Conversion of Metric and English Units
- Technical Service Data
- Ordering Spare Parts
- Planned Maintenance Schedule
- Planned Maintenance Procedures – Daily / Each 8-Hour Shift, Monthly / 250 Hours, Annual / 1200 Hours
- Lubrication Chart and Approved Oils and Grease
- Inspection Covers and Removal of the Plastic Dash Panel
- Drive Motor 24 Volt – Component Repair, Inspection and Troubleshooting, Changing Brushes, Armature and Field Testing
- Drive Motor 36 Volt – Component Repair, Inspection and Troubleshooting, Changing Brushes
- Transmission – System Description, Troubleshooting, Removal, Disassembly and Assembly, Installation
- Drive Wheel, Load Wheels, Stabilizing Caster (Spring Loaded) – Removal, Inspection, Disassembly, Installation
- Torque Generator – Disassembly and Assembly
- Steering System Pump – General Information, Removal, Installation, Disassembly, Inspection, Assembly
- Electrical System with TX and TT Card – Electrical Schematic Parts 1 and 2, Basics of Circuit Operation, Control Features
- Battery Controller / Hourmeter / Lift Interrupt – General Information, Electrical, Battery Controller (BC), Troubleshooting
- Dash Display – General Information, Location, Operational Checks, Status Codes
- EV100 LX Control Status Codes (including Codes -01 through -57)
- SCR Component Checks – Main Logic Card, Capacitor 1C, Forward and Rearward Contactors, 1A Contactor, Power Steering and Pump Contactors, Accelerator Potentiometer, SCRs (1REC, 2REC, 5REC), Rectifiers (3REC, 4REC, Diode Blocks), Thermal Protector, Filter Blocks, 1X Choke and Reactor T3-T4
- Replacement of EV100 Components and EV100 Plug Instructions
- Direction Contactor – General Information, Remove and Replace Contact Tips
- 1A Speed Contactor – General Information, Disassembly, Assembly
- Electrical System Troubleshooting – Control Circuits and Power Circuits
- Electrical System Troubleshooting Charts – Emergency Disconnect Contactor, Steering and Brake Release Pump, Travel, Lift, Lowering
- Pump Contactor and Steering Pump Contactor – General Information, Disassembly, Assembly
- EV100 Handset Operation – Purpose, Operation, Function Set-Up Procedures, Function Numbers for Controllers
- Hydraulic System – Hydraulic Schematic, General Information, Lift and Lower, Power Steering, Brake Release, Maintenance, Adjustments, Hydraulic Troubleshooting Chart
- Lift Pump Assembly – Removal, Disassembly, Inspection, Assembly
- Mast, 2 Stage – Shimming the Platform, Shimming the Rails, Removal, Installation, Disassembly, Assembly
- Mast, 3 Stage – Shimming the Platform, Shimming the Rails, Removal, Installation, Disassembly, Assembly
- Lift Cylinder, 2 Stage – Cylinder Repair
- Freelift Cylinder, 3 Stage – Cylinder Repair
- Staging Cylinder, 3 Stage – Removal, Disassembly, Assembly, Installation
- Micro 70 Wire Guidance – Powering Up and Down, Electrical Schematics Parts 1-4, Cautions and Warnings, Operation Information, Component Function and Relationship, Truck Set Up On Site, Troubleshooting Information and Charts
Taken as a whole, this is a full-system service reference rather than a single-subject repair note. The first third establishes the machine and the standards you work to – truck data, fastener grades and torque values, unit conversions, the planned maintenance intervals at 8, 250 and 1200 hours, and the lubrication and oil specification charts. The service section then takes each assembly apart in order: electric drive motor, transmission and brake, wheels and caster, torque generator and steering pump, and the complete EV100 LX electrical package with its status-code diagnostics. The hydraulics section covers the lift circuit and lift pump down to seal and wear-plate inspection, and the mast section covers shimming, chain tensioning and column disassembly for both two-stage and three-stage masts. The final section handles the Micro 70 wire guidance system end to end, including the on-site set-up and alignment procedure and the fault charts used to trace antenna, tachometer, FTI 7 and FSA servo problems.
Diagnostics Built Into the Manual
Two areas make this document unusually practical. The first is the EV100 LX status code set. Every code is presented with its description, memory recall flag, circuit affected, symptom, possible cause and the actual voltage or resistance test to run – so a code -44 or -49 is not just a number, it is a defined test sequence on 1REC, 2REC, 5REC and the snubber circuits. The second is the Micro 70 guidance troubleshooting, which walks through antenna voltage swings, FTI 7 zero and feedback potentiometer calibration, FSA output checks and the frequency-matching jumpers on the Micro 70 controller.
The electrical troubleshooting charts follow the same pattern: start at the battery, work through fuses, key switch, emergency disconnect contactor, foot pedal, gate switches and directional switches, testing battery voltage at each point, with the repair listed directly under each failed test.
Specifications You Will Actually Use
The technical service data and hydraulic setting tables give the working numbers for both voltage variants – drive motor minimum brush length, minimum commutator diameter, brush spring tension, transmission gear ratio and oil type, drive and load wheel sizes, lifting pressure at rated load, steering and brake relief valve settings, hydraulic tank volume, fuse ratings and battery capacity and weight ranges. The planned maintenance schedule cross-references each task to an interval in hours and in days, weeks or months, so you can build a service programme around real operating shifts rather than a guess.
Who This Manual Suits
It is written for authorised technicians servicing the OE35, and it assumes a workshop environment – jacking and blocking procedures, solvent handling warnings, compressed air limits and personal protective equipment are stated up front in every disassembly section. That said, a competent maintenance engineer or a fleet operator running an OE35 in a warehouse will find the diagnostic charts and the adjustment values usable on their own, particularly the hydraulic relief adjustment, brake aggressiveness setting and mast shim clearance limits.
Get the BT Prime-Mover OE35 Service Manual Delivered Instantly
With this BT Prime-Mover OE35 Order Selector Service Manual on hand, you can pull a drive motor and service the brushes to the correct minimum length, rebuild the double-reduction transmission and set the axle locknut to its 250 ft-lb figure, adjust brake aggressiveness on the three set screws, chase an EV100 LX fault code down to the exact SCR or rectifier test, set the lift relief valve so the truck lifts rated capacity plus ten percent, re-shim a two- or three-stage mast to the 0.030 in maximum clearance, and re-acquire and fine-tune the Micro 70 guidewire.
Correct procedures and correct specifications are what separate a repair that lasts from a comeback – and on a machine with 2400 psi lifting pressure, a 3000 lb rated capacity and a 300 in lift height, guessing is not an option. This is the document the factory issued so those jobs could be done to spec.
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The manual is delivered as an instant PDF download after payment. No shipping, no waiting for a parcel, no postage costs. Open it on a laptop, tablet or phone in the workshop, print the pages for the job you are doing, and keep the file on hand for the next one.
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