Description

HIAB BZ 150-135, S, T Parts Catalog – Factory OEM Specs

If you are pulling a HIAB BZ 150-135 loader crane apart, you already know the difference between guessing and having the factory breakdown in front of you. This Parts Catalog is the real deal – 324 pages of OEM exploded views and part numbers for the S and T variants. I have seen too many mechanics waste an afternoon chasing a wrong seal because they used a third-party parts list. That stops here. This book came from HIAB’s own print line, not a scan of a scan. Every line drawing is crisp, every part callout matches the production serial numbers. You get platforms, cylinders, hoses, hydraulic units, valve systems, and the liftchassis – all broken down by serial number range so you order the exact revision that fits.

What’s Inside This Parts Catalog?

The table of contents runs from Chapter 1 (Liftchassis) through Chapter 6 (Safety valves). Chapter 2 covers two aluminum platform options: PLB0413 and PLB0420. Chapter 3 gives you lift and tilt cylinders – part numbers 68543, 65555, and 64657 – with separate listings for each hydraulic unit configuration. Torque specs are not printed here because this is a parts catalog, not a service manual, but every fastener called out references the factory standard. Need the valve system for a 12-volt setup? That is on page 26, part number 31854. The chassis assembly (Chapter 1) lands on page 48. If you cannot find a part number in this book, it likely does not belong on the crane.

Cylinder Breakdown: Lift and Tilt

Count on at least three different cylinder families in this manual. The lift cylinder 68543 shows up multiple times across different serial number breaks – the seal kit changes depending on whether your unit is before or after SN 74201. Same for the tilt cylinder 65555 and the later tilt cylinder T 64657. Each drawing lists the complete assembly with every o-ring, wiper, and bushing. If you are rebuilding a tilt cylinder on a T-model, flip to the serial-number-specific entries. Do not assume the earlier revision fits. Aftermarket catalogs often merge these into one generic image; this HIAB book keeps them separate. That is the difference between a job that seals first time and one that leaks on the test stand.

Hydraulic Units and Valve Systems by Serial Number

The S and T models use different hydraulic units, and this catalog respects that. Chapter 5.1 (SN up to 74201) lists the 12-volt 170 bar unit (64308) for the S model and the 12-volt 130 bar unit (65761) for the T model. After SN 74202, the units change to 64308a and 65763a with different pressure ratings. Each entry includes the complete exploded view of the pump, motor, and manifold. The valve system section (5.2.5) covers the 12/24-volt valve stack, part 31854. If your machine has a safety valve issue, Chapter 6 walks through four serial number ranges – from -106073 through 139047+ – with separate 12V and 24V part numbers. Missing one revision code means ordering the wrong safety valve. This manual gives you the exact break.

Why Factory OEM Beats Aftermarket

I have seen reprint shops sell a generic “matching” parts catalog that combines three years of revisions into one blurry page. That will get you a parts order that does not fit. This HIAB Spare-Parts Book is original OEM print – same paper, same binding, same part-number format the factory used when the crane was built. The illustrations are vector-quality, not scanned from a photocopy. Every page number in the table of contents matches the actual page (check page 26 for the valve system, page 48 for the chassis). Aftermarket documents skip the serial-number splits; HIAB includes them. You pay once for the right information, or you pay three times for the wrong parts. Your choice.

Who Needs This Manual?

Equipment owners who maintain their own fleet. Mobile crane mechanics who rebuild cylinders in the field. Fleet managers who need to stock correct seal kits. If you have a BZ 150-135 (S or T) sitting in your yard and you are about to order a tilt cylinder repair kit, this catalog prevents the “oops, wrong revision” call. It also saves you from ordering a hydraulic unit based on voltage alone – the pressure rating matters. One real-world use: a shop in Laredo was trying to rebuild a lift cylinder using an aftermarket parts diagram. The seal groove dimensions were off because they used the S-model drawing on a T-model crane. With this HIAB catalog, you see both side by side. No guesswork.

Does this manual cover the BZ 150-135 T model?

Yes. Both S and T variants are included with separate part numbers throughout.

Why should I use the OEM parts catalog instead of aftermarket?

Because aftermarket catalogs collapse serial-number splits and combine revisions. This HIAB book lists platforms, cylinders, hydraulic hoses, and valve systems by exact SN ranges (e.g., before 74201 vs. after 74202, and safety valve breaks from 106074 to 139046). If you order a tilt cylinder seal for the wrong SN range, you get the wrong wiper profile. OEM drawings show every bushing and o-ring dimension as HIAB released it. You also get the full 324 pages of factory line art, not cropped scans. That is the difference between a one-and-done repair and a return trip.

You need the factory part number – not a guess. Access the Factory Manual now and keep it on your tablet or print the pages for the specific job. Your crane work will go faster, and you will stop ordering parts twice.

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For a broader view of how heavy equipment specs are standardized, see the Automotive Industry Overview.