Description

O&K 1700 Parts Catalog – Factory Manual for the Trojan Loader

If you’re wrenching on an O&K 1700 (Trojan tractor shovel), you already know that the aftermarket parts books are junk. I’ve been a tech for 28 years, and I’ve watched guys order the wrong brake valve because some third-party catalog had a drawing that didn’t match. This Parts Catalog is the real OEM document—139 pages of exploded views, factory part numbers, and adjustments that keep the machine running. It covers everything from the bucket cylinder to the electrical system. You need the part number for a steering cylinder? It’s in here. You need to know which differential group fits your serial number? It’s on the page. No guesswork, no internet forum speculation.

What This 139-Page Catalog Covers

The manual is split into General Instructions and a full alphabetical Parts Listing. Under General Instructions you get safety precautions (page 4), capacities and pressures (page 12), lubrication charts (pages 26-27), battery specs (page 28), and the start-up procedure (pages 12-13). The Electrical system section for both GM and PD engines appears on pages 60-63. You also get instrument panel wiring (pages 7-11) and filter/breather maintenance (pages 20-21). Every adjustment interval and fluid capacity is printed in Imperial units—quarts, pints, inches of water, psi. That matters when you’re filling a torque converter or setting brake pressure.

Torque Specs and Part Number Accuracy

I don’t care how good your memory is—you don’t guess torque values on a loader that lifts 8,000 pounds. The O&K 1700 Parts Catalog gives you the exact OEM part numbers and the assembly drawings that show how everything fits. Need the main hydraulic pump assembly? Pages 72-73. Looking for the front axle brake group? Pages 122-123. The exploded views are clear enough that you can identify a worn seal or a missing washer before you order anything. And because it’s a factory manual, the numbers match what you’ll get from the dealer. Skip the headache of matching aftermarket cross-references.

Does This Manual Cover the Fuel System?

Yes. The catalog lists fuel tank and lines for both GM and PD engine configurations on pages 52-55. You also get accelerator pedal and linkage (GM on 54-55, PD on 52-53), air cleaner assemblies (pages 56-57), exhaust systems (pages 58-59), and the ether starting kit (page 48). Every fuel-related component has its own part number and exploded view. If you’re chasing a fuel leak or rebuilding a carburetor linkage, this manual gives you the OEM layout.

Electrical Diagnostics: Factory Wiring

The Electrical section is one of the most useful parts of this catalog. It separates the wiring and battery diagrams for PD and GM engine variants. Battery and wiring (PD) on pages 60-61, battery and wiring (GM) on pages 62-63. The headlights are on page 64. No blurred photocopies—these are the same drawings that the factory used at the assembly line. If you’re testing a starting circuit or replacing a battery cable, you need the correct diagram. Aftermarket electrical manuals often swap wire colors or omit the grounding points. Not this one.

Who Needs This Catalog

This is for the guy who owns an O&K 1700 loader and wants to keep it running without chasing parts three times. It’s for the shop that services these machines and has to order the right hydraulic filter on the first call. It’s for the DIY owner-operator who rebuilt the bucket cylinder but can’t find the seal kit number. Page 76 has the bucket cylinder, page 77 has the lift cylinder, page 80 has the steering cylinder. The parts breakdown shows every O-ring, wiper seal, and bearing. If you’re running a 6-bay shop like mine, you tape a copy of this catalog to the toolbox so your junior tech doesn’t grab the wrong brake valve.

Source Authenticity: OEM vs Aftermarket

I’ve seen photocopied versions of this manual that look like they were scanned in a basement. The page numbers are cut off, the line art is blurry, and the part numbers are illegible. This is a direct digital reproduction of the original October 1969 Manual No. TB063, Part No. 2022704. The index is intact, the safety warnings are readable, and the parts listing goes from accelerator pedal to wiring. That matters when you’re cross-referencing a ball slip assembly (page 116) or a dual brake valve (pages 112-113). Don’t trust a reprint that lost page 42 (bucket assembly).

FAQ

Is this catalog specific to the O&K 1700 model?

Yes. This is the factory parts catalog for the Trojan Model 1700 tractor shovel, with manual number TB063. It covers both GM and PD engine variants.

What about hydraulic system parts?

The catalog includes the main hydraulic system (pages 66-67), main hydraulic pump (72-73), hydraulic oil filter element assembly (page 74), and steering hydraulic oil filter assembly (page 74). The control valve assembly for main hydraulic and transmission are also listed.

Can I use this to identify obsolete part numbers for interchange?

That’s exactly what it’s for. The factory part numbers let you verify interchangeability with your dealer. Without the serial number and this catalog, you’re rolling dice. The manual strongly emphasizes that you must include the machine serial number when ordering parts.

What electrical specs are included?

Electrical system diagrams for both PD (pages 60-61) and GM (pages 62-63), battery details (page 28), instrument panel (pages 7-11), and head lights (page 64). Capacities and electrical system pressures are on page 12.

Access the Factory Manual and get the real part numbers for your O&K 1700. Your loader will thank you.

Related manuals: O&K 1700 Parts Catalog – Section: Filter Element Assembly, Hydra, O&K L45, 4500Z 1990 Parts Catalog – Parts Manual TB126, O&K L3000 Parts Catalog – Factory OEM Manual (236 Pages).

For reference: Automotive Industry Overview and Automotive Industry Overview.