STILL R 70–15 and R 70–16 (R7011/R7031) Industrial Electric Forklift 1994–2004 OEM Service Manual (P/N 1640726)

• Covers 1994–2004 STILL R 70–15 and R 70–16 industrial electric forklifts, including R7011 and R7031 model configurations managed by Stilltronic R70 control systems
• Official STILL GmbH publication Ident-No. 1640726 (ex145 907), dated August 2004
• Contains 47 exploded-view diagrams of powertrain and steering assemblies, 10 electrical system schematics, and 5 technical specification tables
• Detailed 251-page PDF reference material detailing frame, steering axle, power axle, and hydraulic system repair documentation
• Explains the VW Industrial Diesel Engine 068.5, Telescopic/Hi-Lo/Triple masts, hoist and tilt cylinders, Perrot hydraulic servo-brakes, and p.c.b. u200 logic boards
• Features start delay unit testing, glow plug system tests, current sensor n35 parameters, electronic charge compensator limits, diagnostic meter fault analysis, and wheel hub bearing replacement

System Overview and Maintenance

This factory documentation provides a complete technical inventory of components for the R 70–15 and R 70–16 forklift series. It details the power axle construction, highlighting differential and spur-type gearbox servicing. Technicians will find thorough teardown descriptions of the hydrostatic power steering systems. Working on heavy industrial equipment and high-current circuits poses severe physical and electrical hazards; personnel must always disconnect both battery terminals before interacting with the contactor panel or removing the steering axle to prevent logic board damage or crush injuries. The reference material covers the hydraulic servo-brake assemblies, outlining clearance adjustments and exact fluid requirements. The manual breaks down the electrical architecture, mapping out the Stilltronic R70 control logic, power unit connections, and electronic charge compensator operation. This is supported by hydraulic circuit diagrams, Stilltronic schematic diagrams, mast chain routing views, and wiring diagrams for targeted troubleshooting. Having access to the exact diagnostic flow charts for the Part No. 147587 digital meter drastically cuts down time spent chasing electrical gremlins, allowing shops to quickly verify voltage drops across the c26 safety contactor rather than swapping expensive modules by trial and error. The manual also includes factory step-by-step instructions for tasks that typically require a dealer visit, such as adjusting the mast lift chains to UVV standards, overhauling the hydrostatic steering pump, testing the glow plug relay d88, and skimming the generator commutator on a lathe.

Specification and Data Preview

Accurate workshop execution relies on exact OEM measurements. This document provides critical reference points for any major component overhaul or routine repair planning. The data tables feature precise torque values, emphasizing 710 Nm for counterweight bolts and 195 Nm for trail axle mounting bolts. Hydraulic system benchmarks are clearly defined, listing pump capacities at 16 cm³/r with a pressure relief setting of 90 bar. The documentation specifically addresses electrical baseline metrics. It dictates 12V/44Ah starter battery configurations, outlines charge compensation settings, and mandates an insulation resistance of 200,000 ohms for the motor and generator circuit to maintain operational integrity. A notorious repair pitfall when servicing the R 70 series is overlooking the specific polarity of the tachogenerator m10; crossing these wires feeds incorrect rotational data to the logic card, causing the drive to stall under heavy loads. Additionally, when disassembling the drive motor, failing to fabricate and use the required guide sleeve to protect the driving dog while pressing the V-belt pulley will irreversibly damage the armature shaft.