Hitachi EX33Mu & EX58Mu Hydraulic Excavator Service Manual 1990s–2000s (P/N 588T-01-01)

• Broad Coverage: Supports both canopy and cab configurations for the EX33Mu and EX58Mu series.
• Detailed Visuals: Features 100+ pages of high-resolution system diagrams, hydraulic circuit schematics, and electrical component layouts.
• Operational Performance Tests: Step-by-step diagnostic procedures for engine compression pressure, valve clearance, fuel injection nozzles, injection timing, travel motor leakage, swing function drift check, and hydraulic cylinder cycle time.
• Component Adjustments & Checks: Precise evaluation workflows covering track revolution speed, mistrack check, swing bearing play, swing motor leakage, main relief valve pressure setting, overload relief valve pressure setting, and auto boom-stop system initial setting.

When you need to understand the complex systems of your 1990s–2000s mini excavator, relying on guesswork isn't an option. Working with high-pressure hydraulic circuits and heavy swing mechanisms carries inherent operational risks. Reviewing the exact factory specifications is critical to understanding these structural systems safely before you start tearing down components for a repair.

This official 789-page Hitachi technical manual (publication 588T-01-01) delivers the foundational operational and diagnostic reference you need. Rather than generic overviews, it provides a deep dive into the boom-swing, travel, and hydraulic control systems. By substituting trial-and-error with hard baseline data, you can isolate complex faults directly on the shop floor without paying expensive dealership diagnostic fees. Pulling up this PDF on your shop tablet streamlines your workflow exactly when troubleshooting critical machine functions.

Component and System Walkthrough

Understanding the structural design saves you hours of diagnostic time in the shop. This documentation thoroughly outlines the upperstructure components. You get clear functional breakdowns of the variable-displacement main hydraulic pumps, axial-plunger swing motors, and multi-stage planetary swing reduction gears.

It also details the operation of critical control valves. This includes the flow-combiner, main-relief, and make-up valves that keep your machine performing under heavy loads. The manual further explains pilot valve operation, solenoid-actuated travel speed controls, and the auto boom-stop safety systems installed on both models. Having the exact step-by-step instructions for tasks like the auto boom-stop system initial setting or establishing the overload relief valve pressure allows you to perform these high-level calibrations yourself, bypassing the costly workshop visit.

Specification and Data Preview

Accurate data is the backbone of any well-maintained machine. The specifications for both the EX33Mu and EX58Mu are extensively documented. You will find precise engine performance metrics, machine dimensions, and hydraulic operating parameters.

• Hitachi EX33Mu engine rated output: 16.9 kW at 2000 rpm
• Hitachi EX58Mu engine displacement: 2.179 L
• EX58Mu swing speed: 11 min-1

The included conversion tables for international system units ensure you interpret pressure, force, and flow rate data accurately. For electrical troubleshooting, the sections provide comprehensive mini excavator repair documentation covering the controller, sensor inputs, and monitor panel functions.

Equip your shop with the accurate specifications required to maintain these heavy-duty machines. Add this technical manual to your cart today and streamline your next service job.