2002 Komatsu PC27MRx-1 / PC30MRx-1 / PC35MRx-1 Operation & Maintenance Manual (247 P.)

Complete operational guidance and hydraulic system specifications for mini excavator models. Factory documentation includes daily maintenance schedules, attachment procedures, and troubleshooting for all three PC-series compact excavator variants. SEAM035305T

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Document Details

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Document Number / Seller:
23760 / Thomas Torres
File Size:
5.87 MB
File Type:
PDF
Language:
English
Pages:
247
Printable:
Yes
Category:
Mini Excavator
Last updated / verified
Apr 29, 2025

Models Covered & Key Technical Specifications

Komatsu PC27MRx-1, PC30MRx-1, PC35MRx-1 — 2002 Detailed Reference Handbook | Mini-Excavator Series Set.

  • Measured Liquid Volume: Hydraulic system capacity reaches 47 L (12.42 US gal) for PC27MRx-1 and PC30MRx-1 models, establishing the primary reservoir Specifications.
  • Fundamental Electrical Specs: Engine horsepower determines 18.8 kW (25 HP) at 2600 rpm for PC27MRx-1, and 20.6 kW (28 HP) at 2500 rpm for PC30/35MRx-1 units, indicating rated power Framework.
  • Baseline Gap Specs: Fuel tank capacity is calibrated to 37 L (9.78 US gal) for PC27MRx-1 and 42 L (11.10 US gal) for PC30/35MRx-1 machines, specifying minimum fuel volume Logic.
  • Integral Thermal Rating: Maximum digging depth is rated at 2,650 mm (8'8") for PC27MRx-1, 2,835 mm (9'4") for PC30MRx-1, and 3,150 mm (10'4") for PC35MRx-1 — representing maximum excavation depth Threshold.
  • Operational Unit Dimensions: Overall length achieves 4,140 mm (13'7") for PC27MRx-1, 4,660 mm (15'3") for PC30MRx-1, and 4,800 mm (15'9") for PC35MRx-1 machines, defining machine footprint Benchmarks.
  • Published Reservoir Specs: Operating weight corresponds to 3,005 kg (6,626 lb) for PC27MRx-1, 3,200 kg (7,056 lb) for PC30MRx-1, and 3,765 kg (8,302 lb) for PC35MRx-1 excavators, representing load-bearing capacity Range.

Professional Workshop Service Manual & Technical Specifications

Full-Coverage Specification Safety Manual: Mini Excavator Komatsu PC27MRx-1, PC30MRx-1, PC35MRx-1 Excavator Operation & Maintenance Manual (2002 Edition) Data-Compendium

Assembly-Group: Komatsu PC27MRx-1 (serial 10001 and up), PC30MRx-1 (serial 10001 and up), PC35MRx-1 (serial 1001 and up) // Conceptual-Layout: Hydraulic compact excavator system architecture and operational framework // Architecture-Focus: Complete technical documentation for three-model mini excavator platform.

Component Rating Calibration-Data
Hydraulic System Operating Range 0-250 kgf/cm² Complete specifications provided, See Chapter 5
Engine (3D82AE/3D84E Series) 18.8-20.6 kW output Torque curves and performance data documented
Track Configuration Steel shoes/Rubber shoes/Road liners Tension adjustment procedures specified, See Chapter 4

Featuring a modular arrangement of comprehensive operation and maintenance guidance, this document encompasses safety protocols, system fundamentals, service routines, and engineering particulars for the Komatsu compact excavator lineup. The manual provides control systems documentation, encompasses hydraulic circuit guidance, integrates specification tables, and systematically addresses maintenance schedules covering 100-hour through 2000-hour service intervals.

Factory procedures are documented for attachment operations including hydraulic breaker configuration, bucket replacement sequences, and control pattern selection between ISO and J/D patterns. Suspension service documentation covers undercarriage maintenance including track tension adjustment, rubber shoe replacement procedures, and track shoe bolt tightening torque specifications. Disassembly instructions are documented for fuel system service, hydraulic fluid management, and cooling system flushing protocols. Wear limits are specified for engine components, hydraulic seals, and safety-critical hoses requiring periodic replacement. System operation descriptions cover steering mechanisms, swing control coordination, and work equipment hydraulic valve sequencing. The document's strategic organization presents cold weather operation guidance, long-term storage protocols, and emergency troubleshooting procedures addressing electrical system failures, hydraulic circuit problems, and engine performance anomalies.

Technical data encompasses working ranges (maximum digging reach of 4,600-5,320 mm, maximum digging depth of 2,650-3,150 mm), operating weight specifications (3,005-3,880 kg depending on configuration), and travel speed parameters. Lubricant specifications identify SAE grade requirements (10W, 30, 40, 10W30, 15W40 engine oils; SAE80/90/140 gear oils; ethylene glycol antifreeze formulations) with supplier compatibility tables listing approved products from KOMATSU, AGIP, AMOCO, ARCO, BP, CALTEX, CASTROL, CHEVRON, and other international suppliers. The manual documents torque specifications for metric fasteners ranging from M6 through M39, establishing target values and permissible ranges for hydraulic hose connection points.

Safety critical parts requiring periodic replacement are identified with 2-year or 4000-hour intervals for fuel and hydraulic hoses, and 3-year replacement cycles for seat belts. Wiring diagrams, hydraulic circuit schematics, and control panel layouts facilitate system understanding. Optional equipment guidance covers air conditioner operation, radio receiver controls, and windshield washer fluid maintenance. The manual documents torque specifications for the [component] to ensure proper clamp load consistency.

FAQ

Specify the **applicable** lubrication points for every 100-hour service? keyboard_arrow_down

8-11 individual grease fitting points must be serviced on PC27MR models, with similar schedules for PC30/35MR variants, including swing pinion, swing circle, boom swing cylinder foot pin, bucket cylinder rod end, and various coupling pins requiring grease application.

What is the **exact** fuel tank capacity across all models? keyboard_arrow_down

37 liters (9.78 US gal) for PC27MR, 42 liters (12.68 US gal) for PC30MR and PC35MR excavators respectively.

Calculate the **specific** hydraulic filter replacement interval? keyboard_arrow_down

250 hours of operation between replacements for all three models: PC27MRx-1, PC30MRx-1, and PC35MRx-1, with element part number 07063-01054 and O-ring 07000-02135 for applicable models.

What values are **designated** for engine oil pan refill capacity? keyboard_arrow_down

5.2 liters for PC27MR, 6.9 liters for both PC30MR and PC35MR during standard maintenance intervals between 250-hour service cycles.

Assess the **critical** maximum deflection tolerance for track tension on rubber-shoe equipped machines? keyboard_arrow_down

1 to 3 mm (0.039 to 0.118 inches) deflection measured between the rubber shoe top surface and wooden block bottom, with adjustments required when measurements exceed this standard range per pages 209-213 specifications.

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Reviews (2)

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New
This manual is incredibly detailed and easy to follow. The download process was seamless, and I received the link promptly in my email. Highly recommend!
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New
The troubleshooting section has saved me time and effort. The support team was very responsive when I had a question. Overall, a very useful manual!