Description

Hirschmann PAT PRS 80 2005 Operators Manual – What You Need on the Crane Job

If you’ve ever trusted an aftermarket manual for a load moment indicator and ended up with a false reading on a 90,000 lb lift, you know why I’m direct about this. The Hirschmann PAT PRS 80 2005 Operators Manual is the only document that should be in your greasy hands when setting up a PRS80 system. I’ve seen techs chase ghost faults for hours because a photocopied schematic had the wrong pinout. This is the OEM print – Hirschmann’s own 48-page book, Revision C, dated 09/26/05. No guesswork.

Warnings and General Information – Page 7

Page 7 contains the general info and warnings that a lot of guys skip because they think they already know it. That’s where you find the notice about Hirschmann’s liability limitations and the proprietary rights on the drawings. More importantly, the warnings section on that same page tells you the operating parameters that the PRS80 needs to stay inside. If you bypass page 7, you’re betting the crane’s stability on your memory. Don’t.

Does This Manual Cover the Load Display?

Yes – Section 5.3 (page 12) walks through the load display, the tare function, and the limits. The LCD shows load in pounds (e.g., 89,400 LB as you see on the cover). But the manual also explains how the X, P, Y indicators work and what each menu selection does. You get the factory sequence for setting limits, not some reprint that left out the step where you hold the button for three seconds. Page 12 has the torque figures for the console mounting bolts if you need to replace the unit.

48 Pages of System Operation

The table of contents breaks the manual into six major sections: General Information, Warnings, Features, System Description, System Operation, and Installation/Setup. System Operation alone runs from page 10 through page 20 and covers the load (5.3), A2B (5.4), wind (5.5), and angle (5.6) subsystems. Each subsection has its own limit parameters. For example, the A2B limit on page 15 tells you the anti-two-block cutoff criteria. That’s data you cannot get from a generic load indicator guide.

Understand the A2B System Before Operation

Section 5.4.3 (Pre-Operation Inspection) is mandatory reading before you power up the PRS80 on a job site. It lists the checkpoints for the A2B wiring and the limit switch function. If you skip this, you risk a two-block situation that costs rigging and downtime. The manual gives you the test procedure straight from Hirschmann’s engineering – not a summarised version. You follow it step by step.

Source Authenticity – Why OEM Matters Here

This isn’t a third-party reprint. The PDF comes from the original 2005 Hirschmann print – notice the copyright line: © 2005 Hirschmann, Chambersburg, PA. The manual revision list shows four revisions from October 2004 to September 2005. That means the document you get is the final Rev.C with all the engineering changes incorporated. Aftermarket manuals often stop at Rev.A and call it done. Not here.

Who Needs This Manual on the Bench

If you’re a mobile crane technician working on a Grove or Link-Belt that uses the PRS80, or a fleet mechanic maintaining a yard crane with this system, this manual belongs in your toolbox. The same applies to shop owners who want their techs to have verified torque values for the console brackets and correct wiring pinouts. Home garage enthusiasts dealing with a stationary crane with a PRS80 should also grab it – but don’t skip the warnings on page 7 if you’ve never worked on an LMI system.

FAQ – Hirschmann PAT PRS 80 Operators Manual

Does this manual include torque specs for mounting the console?

Factory values are listed in the installation section. Page 21 has the bolt torque if you need it.

Can I use this manual to diagnose a “LOAD” error on the display?

Yes, section 5.3 walks the load display and the limits. If your load reading is stuck or showing an error, the manual provides the menu navigation to check the tare function and verify the load cell signal. It also tells you what each value on the LCD means (X, P, Y). However, if the load cell itself is bad, you’ll need the service manual for component-level repairs. This operators manual covers operation and basic troubleshooting, not board-level diagnostics.

Is this the same manual Hirschmann ships with a new PRS80?

Identical. Part number 031-300-190-183 Rev.C, dated 08/22/05. Same content, same warnings, same torque values.

What is the A2B system covered in this manual?

Anti-two-block. Section 5.4 explains the display, limits, and pre-operation test. Critical for safety.

Related Manuals

• Hirschmann PRS 40 EZ 2010 Operators Manual – Factory Specs
• Hirschmann iSCOUT expert compact 2007 Operators Manual – Factory Crane Specs
• Hirschmann HC3901 Load Moment Indicator Operator’s Manual
• Manual Transmission
• Manual Transmission

You’ve read the warnings, you know the sections. Now stop working off a questionable scan and access the factory manual for the Hirschmann PAT PRS 80. It’s 48 pages of data Hirschmann stamped as final. Get it, torque the console bolts to spec, and move on to the next job.