Komatsu WA320-8 Wheel Loader Operation and Maintenance Manual VENAM30501 PDF

Description

The Komatsu WA320-8 Wheel Loader Operation and Maintenance Manual (document VENAM30501) is the complete factory reference for machines with serial numbers H70051 and up, and 85001 and up. Published by Komatsu Germany GmbH in November 2017, this 450-page PDF walks through every stage of owning and running a WA320-8 — from pre-shift walk-around checks and daily operator controls through to scheduled maintenance intervals, component specifications, attachment handling and defined-life part replacement. If you operate, service or repair a WA320-8, this is the manual that tells you the correct procedure, the correct fluid and the correct torque value for the job in front of you.

File Details

• Manual type: Operation and Maintenance Manual
• Brand: Komatsu
• Model: WA320-8 Wheel Loader
• Document number: VENAM30501
• Publication date: 11-2017 (November 2017)
• Language: English
• Page count: 450 pages
• File format: PDF
• Serial numbers covered: H70051 and up; 85001 and up

Chapters Covered

• Safety
• Operation
• Maintenance
• Specifications
• Attachments and Options
• Replacement Parts
• Index

Front matter also includes the EU Declaration of Conformity, noise emission and vibration levels, safety label contents, machine serial number and distributor information, and the “Read This Manual” instructions.

Safety

The Safety chapter is not a boilerplate legal page — it is a fully illustrated set of job-site rules, hazard pictograms and step-by-step precautions the operator must follow. It includes the full contents of every safety label fitted to the WA320-8, with part numbers such as 09651-A0481, 09654-C0481, 09802-D0880 and 09632-61480 reproduced alongside their pictogram explanations. You get explicit procedures for preventing fires (fuel, oil, coolant, electrical, exhaust-related), handling the KDPF and SCR high-temperature components, getting on and off the machine, working near high-voltage cables, safe parking, towing, transportation and servicing under raised work equipment. Additional sections cover battery handling and explosion prevention, DEF handling and storage precautions, tyre safety and disposal of waste materials.

Operation

This is the largest working chapter, covering every control, switch, lever, pedal and monitor on the machine. It walks through the machine monitor and its warning displays, action-level tables (L01 through L04), pilot lamps, ECO guidance, maintenance reminders and KDPF/SCR regeneration indicators. You get detailed procedures for starting the engine in normal and cold weather, operating and checking after start-up, moving and stopping the machine, selecting speed ranges, switching between forward and reverse, steering with the joystick or wheel, operating the work equipment, and setting up the remote positioner and bucket positioner. It also includes sections on parking, locking, handling tyres, using the air conditioner, transportation, cold-weather operation, long-term storage and troubleshooting actions for common problems such as running out of fuel, towing a disabled machine, discharged batteries and emergency HST pump drive operation.

Maintenance

Section 4 is the heart of the manual for workshop and fleet users. It opens with general safety precautions for maintenance, then breaks the schedule into intervals — Initial 10 hours, Initial 250 hours, When Required, Checks Before Starting, Every 50/100/250/500/1000/2000/4000/4500/8000/9000 hours. Each interval points to a specific procedure with tooling, fluid type, capacity and torque values: engine oil and filter changes, fuel prefilter and main filter replacement, air cleaner cleaning and element replacement, cooling system cleaning, transfer case and axle oil level checks, radiator fin cleaning, DEF filter replacement, KCCV filter element replacement, brake circuit strainer cleaning, hydraulic oil and filter changes, slow-blow fuse replacement, wheel hub bolt checking and more. Fluid capacities are given in litres (engine oil pan 25.5 L specified / 23 L refill; hydraulic tank 146 L / 92 L; fuel tank 245 L; DEF tank 21.1 L; cooling system 35.1 L; front axle 27 L; rear axle 25.5 L; transfer case 9.8 L / 5.8 L). Torque values follow Komatsu standard tightening tables plus component-specific figures.

Specifications

The Specifications chapter covers the WA320-8 in its standard configuration: operating weight 15,300 kg, bucket capacity 2.8 m³ heaped, normal load 4,480 kg, overall length 7,755 mm, overall height 3,200 mm (work equipment) and 5,375 mm with the bucket raised, overall width 2,590 mm, minimum ground clearance 425 mm, dump clearance 2,970 mm at the cutting edge, dump reach 960 mm, and maximum travel speeds of 1.0–13.0 km/h in 1st, 13.0 km/h in 2nd, 18.7 km/h in 3rd, and 38.0 km/h in 4th (forward and reverse). Permissible towing load is listed as 113 kN {11,475 kg}. The engine is the Komatsu SAA6D107E-3, rated 127 kW {170 HP} at 2,100 rpm (SAE J1995 gross and ISO 14396), with a net rating of 123 kW {165 HP} at 2,100 rpm under ISO 9249 / SAE J1349.

Attachments and Options

This chapter goes beyond the standard machine and documents the option packages a WA320-8 may be ordered or retrofitted with. It opens with bucket and tyre selection tables for different operating conditions (light material, excavating, rock, soft ground, hard ground). It then covers the joystick steering system in depth — component layout, function and structure, precautions, operating method, selecting between joystick and steering wheel, and adjusting the joystick console. Further sections cover the hydraulic quick coupler (component identification, attachment removal and installation for both 2-point and 3-point switches, and precautions), the fork attachment (positioner adjustment, loading and unloading, carrying, stacking), and the PCS (Proportional Control Switch) for third-function attachments, including oil flow control modes, detent operation and setting procedures.

Replacement Parts

The final chapter lists periodic replacement of defined-life parts (fuel, steering, brake, HST and work equipment hydraulic hoses, PPC accumulator, seat belt) with replacement intervals, followed by a consumable parts list with part numbers for engine oil filter, fuel prefilter, fuel main filter, HST oil filter, transfer strainer, DEF tank breather, KCCV filter, hydraulic oil filter, hydraulic tank breather, air conditioner filters, DEF filter, PPC accumulator, hydraulic tank strainer, brake circuit strainer, fuel tank breather, air cleaner element and bolt-on cutting edge. A lubrication chart, recommended fuel/coolant/lubricant tables and ambient-temperature fluid selection guidance close out the section.

Who this manual is for and what it delivers

Whether you run a WA320-8 on a quarry, a demolition site, a waste-transfer station or a road-maintenance fleet, the difference between a machine that lasts and one that fails early usually comes down to doing the right procedure at the right interval with the right fluid and the right torque. This manual gives you that information in the manufacturer’s own words. Operators get the full control layout and daily checklists. Fleet mechanics get the complete maintenance schedule, fluid capacities, torque tables and step-by-step replacement procedures. Workshop technicians get the specifications, attachment handling and defined-life replacement intervals that keep the machine compliant and safe.

This is the same reference used in Komatsu’s own service network for the WA320-8. It covers the Komatsu SAA6D107E-3 engine, the EU Stage IV emissions package (KDPF + Urea SCR with DEF), the HST drive system, the electronically controlled suspension system (ECSS), the hydraulic quick coupler, joystick steering, and every monitor display and warning code shown on the machine. If you are buying a used WA320-8 and want the full documentation set, if you are running a maintenance programme and need the correct capacity figures on hand, or if you are diagnosing a fault and need to know what action level L03 versus L04 actually means, this manual answers the question.

IMAGES PREVIEW

Delivered as an instant PDF download — no shipping, no waiting. Open it on a laptop in the workshop, a tablet on the machine, or a phone on the job site. Print only the pages you need for a job. The file is a single 450-page document covering the entire WA320-8 operation and maintenance scope from the factory.