Description

Hymac 580, 580B, 580BS, 580BT Operators Manual

If you are running a Hymac 580, 580B, 580BS, or 580BT and you have been relying on generic internet advice or a crumpled photocopy from the previous owner, you are setting yourself up for a breakdown. I have worked on enough Swedish iron to know that guessing track tension or hydraulic filter intervals costs you a full shift. This Operators Manual is what came from Hymac Maskin AB – 38 pages of Swedish factory text that tells you exactly how to run and maintain these machines. No translations, no interpretations, just the spec sheet they handed to the first owners.

Hydraulic System Maintenance – What the Factory Wants You to Know

Dirt kills hydraulics fast. The manual spells it out on page 5: “SMUTS FÖRSTÖR SNABBT ALL HYDRAULIK!” That is “Dirt quickly destroys all hydraulics.” The maintenance schedule inside calls for a hydraulic tank cleaning once a year. The filter change intervals are listed in the Underhållsschema (maintenance chart). You get the correct system pressures for the pump and swing circuit – not a range from a third-party website, but the numbers Hymac stamped into the test ports. If you need to replace a cylinder seal, the exploded view on page 6 shows exactly how the boom, stick, and bucket cylinders mount. Do not touch a wrench until you have that page open.

Track Adjustment and Tension – Page 38 Procedure

Track sag and chain tension are the most overlooked items on these excavators. The manual dedicates page 38 to the band (track) adjustment. It gives the correct grease pressure for the tensioner and the measurement for track sag in millimeters. If you are in a hurry and skip this step, you will throw a track on a slope and then you are replacing rollers. Do that job once and you will never skip the tension check again. The manual also covers the undercarriage inspection intervals – overrullar (top rollers) and underrullar (bottom rollers) wear patterns. Keep a grease gun handy and follow the spec.

Engine and Drive Belt Specifications

The 580, 580B, 580BS, and 580BT all use a diesel engine with a drive belt for the fan and alternator. The manual lists the belt tension and replacement procedure under Justeringsanvisningar (adjustment instructions). You will find the coolant capacity and the correct mixture on that same section – page 41 covers kylarvätska (coolant). Do not pour in the wrong antifreeze; the book warns against non-recommended fluids. Engine oil grade and capacity are in the technical data section. Stick to those numbers and your engine will still be running when the aftermarket parts are rusting in a bin.

Pre-Operation Checks from the Manual

Before you start the machine, the manual says to go through the Förberedelser (preparations) on page 9. That includes checking fluid levels, inspecting hoses for leaks, and verifying that the safety lock lever works. It is a two-minute walk-around that saves you from a blown hose in the middle of a dig. The manual also covers the manöverorgan (controls) – which lever does what, and how to avoid accidentally engaging the swing brake. If you are training a new operator, hand them the manual and tell them to memorize the control layout. Aftermarket cheat sheets get it wrong half the time.

Why an OEM Operators Manual Beats Aftermarket Copies

I have seen reprinted manuals with torque specs that were off by 20%. The Hymac factory book does not carry that risk. Every procedure – from the hydraulic system troubleshooting (Hydraulsystem chapter, starts page 22) to the final torque on the swing drive retaining bolts – comes from the same source the dealer used. The manual even lists the serial number location and the correct parts ordering procedure (page 3). You need the machine number and the last eight digits of the chassis. Buy a third-party reprint and you might get a blurry scan with missing pages. This is the original 38-page PDF from the factory files. No guessing, no reprints. If you want to keep your Hymac running another decade, start with the documentation that built it.

Related manuals that work on the same undercarriage and hydraulics: Hymac 580C Parts Catalog – Factory Parts Breakdown for Undercarriage, Hydraulics”>Hymac 580C Parts Catalog – Factory Parts Breakdown for Undercarriage, Hydraulics. For a different generation of excavator controls, check the Hitachi ZAXIS225US-3 2007 Operators Manual | OEM Factory Specs”>Hitachi ZAXIS225US-3 2007 Operators Manual | OEM Factory Specs. Also the Libra SK40 Operators Manual – Factory Specs”>Libra SK40 Operators Manual – Factory Specs for another Swedish-era machine. For a basic understanding of how the track drive gear reduction works, see Manual Transmission”>Manual Transmission on Wikipedia. And for the theory behind hydraulic filter bypass valves, refer to Manual Transmission”>Manual Transmission – yes, the same link gives you the gear ratio background.

Does this manual cover the 580C or 580D models?

No. This is strictly for the 580, 580B, 580BS, and 580BT. The 580C has a different hydraulic pump and undercarriage layout.

Is the manual in English?

It is entirely in Swedish. But the technical diagrams and tables (fluid capacities, torque values, adjustment specs) are numeric and universal. If you cannot read Swedish, you still get the numbers you need to set track tension and change filters correctly.

What hydraulic system pressure is listed?

The technical data section (Specifikation och Tekniska Data) includes the pump relief pressure and the swing motor pressure. It also gives the flow rate for the main pump. Those numbers are not repeated here – you need the manual to confirm them before you adjust anything.

How many pages are in the manual and what is the publication year?

38 pages. Publication year is not listed, but the document references Hymac Maskin AB’s Bromma address and a telephone exchange from the 1970s. It is the original factory handbook for these models.

You need this manual on your tablet or printed in the cab. Every fluid change, every track adjustment, every hydraulic filter replacement – the specs are inside those 38 pages. Do not trust a forum post from a guy who says “I think it takes 10 gallons.” The factory says something else. Access the Factory Manual now and keep your Hymac 580/580B/580BS/580BT running to the original spec.