Description

Yale ERC16AAF, ERC18AAF, ERC20AAF, ERP16AAF, ERP18AAF 2008 Parts Catalog

You are pulling a part number for a Yale ERC16AAF, ERC18AAF, ERC20AAF, ERP16AAF, ERP18AAF 2008 Parts Catalog and you find three different contactors under the same name. Order the wrong one and the truck sits for a week. That is why I only use the factory catalog. This one runs 472 pages with serial number breaks that tell you exactly which component fits your truck. No aftermarket cross-reference guessing. No generic “fits all” nonsense.

I have been in this trade since before most of you were born. I have seen guys bolt on a part from a different serial number range and then chase electrical gremlins for two days. Yale issues these parts catalogs with specific date ranges and serial number thresholds. For example, the ELECTRICAL SYSTEM section splits by S/N A814A-02166W and after. That is not a suggestion. That is how you keep the contactor from burning up.

1 General Truck: Seat and Suspension Options

Section 1 covers the GENERAL TRUCK. That includes the suspension seats. You get non-suspension, semi-suspension, and full suspension seat assemblies from Date Built 08/1998 onwards. The catalog lists the part numbers for the seat itself and the mounting hardware. If you are swapping a seat on an ERC18AAF, you need to know whether your truck uses the Sears or Schneider assembly. The exploded view shows the fastener count. Page references are given for each sub-assembly – I am not going to list them all, but you will find the accelerator pedal, foot directional control pedal, labels, counterweight, overhead guard, hood, covers, and frame. All factory part numbers, all date-coded.

2 Electrical System: Contactor Panels and Wire Harnesses

This is where the catalog earns its keep. The Electrical section runs from page 2.1 through 2.whatever. You get contactor hydraulic panels, transistor control panels, contactor panels with BDI, lift interrupt, and field weakening. Each one has a serial number break. The wire harnesses are split by frame serial number. If you have a Yale ERP16AAF with serial number after A814A-02167W, you need the “S/N A814A-02167W⇒” harness. The book shows the connector pinouts and the exact routing. Do not use a harness from an earlier truck – the pin assignments changed. Also covered: instrument panel premium dash display, economy dash display, SCR display, shift lever, traction motors (economy, performance, high speed with BWI, without BWI), hydraulic motors, battery connector, and all the wire harnesses. This is not a wiring diagram manual – it is a parts reference. But if you know the part number, you can order the correct harness and avoid hours of continuity testing.

3 Drive Unit, Steering, Brake & Hydraulic Systems

Sections 3 through 6 cover the drive axle, transmission, differential, wheel and tire options (smooth tread, non-marking compound, polyurethane, lug tread electric, pneumatic, intermediate solid), steering system with trail axle and steering pod, brake assembly (with date build break at 07/1997), and hydraulic system. The steering control unit has two serial number ranges: up to S/N A814A-01757V and after. The gear pump lists a date build break at 11/1997. You need to match your truck’s build date to the page. The catalog provides the part numbers for the seals, bearings, and complete assemblies. I have used these to rebuild a drive axle on an ERC20AAF – the bearing numbers matched exactly.

4 Mast Sections, Forks, and Options

Sections 7 through 11 cover two-stage limited free-lift, three-stage full free-lift, two-stage full free-lift masts, forks, load backrest, and options like back-up alarm, brake and back-up lights, auxiliary tubes. Each mast type has its own exploded view. The option section includes the 12-volt brake and back-up light kit with serial number breaks. If you need to add a back-up alarm to an ERP16AAF, the part number is listed in the options section. The numerical index (Section 12) lets you look up a part number and find the page. That is a time saver when you have a basket of parts and need to know where they go.

Source Validity: Factory OEM vs. Aftermarket Catalogs

This is a genuine Yale publication from 2008. Part number 504250784. The document has 472 pages, not 200 pages of reprints. Aftermarket parts catalogs often combine multiple models into one drawing and hope you pick the right one. Yale’s catalog uses serial number breaks, date build breaks, and model nomenclature. The model code on the nameplate tells you the power type, tire type, mast type. The catalog explains how to decode it. I have seen aftermarket diagrams that show a contactor with the wrong amp rating. That burns out the board. Use the factory data. It is the only way to be sure.

Who Needs This Catalog?

If you maintain a fleet of Yale ERC/ERP16-20AAF lift trucks – whether you are a small shop owner, a home garage enthusiast who picked up a used forklift, or a technician in a warehouse – you need this catalog. It is not a service manual. It does not tell you how to troubleshoot a controller. But if you need to order a wire harness, a suspension seat, a steering control unit, a drive axle bearing, or a mast part, you will find the exact factory part number. That saves you from ordering the wrong part and having the truck sit idle. I keep a copy of the Yale OS 030 BC SS 030 BC 1997 Parts Catalog OEM next to it for older models. For the newer AC electrics, the Yale MP, MPB 040 AC 1997 Parts Catalog Factory OEM covers that series. And if you work on the older internal combustion trucks, the Eaton Yale & Towne 1700 1969 Service Manual – OEM Factory Data is a classic.

For general background on the automotive and industrial equipment industry, see the Automotive Industry Overview or the Automotive Industry Overview on Wikipedia.

FAQ – Yale ERC/ERP16-20AAF Parts Catalog

Does this catalog cover the ERC18AAF with a serial number after A814A-02167W?

Yes. The catalog includes sections that split at that serial number. For example, the electrical system contactor hydraulic panel has two pages: one for ⇒S/N A814A-02166W and one for S/N A814A-02167W⇒. The wire harnesses also have serial number breaks. Check the section 2 index for the specific harness.

Can I use this catalog to find the part number for a full suspension seat on an ERP16AAF built after 12/2000?

Yes. Section 1 includes the FULL SUSPENSION SEAT D/B 12/2000⇒ assembly. The exploded view shows the seat cushion, backrest, mounting bracket, and hardware. The part numbers are listed next to each item.

Is this the same as a service manual?

No. This is a parts catalog. It gives you part numbers, exploded diagrams, and quantity information. It does not contain repair procedures, torque specs, or diagnostic steps. For that you need the service manual.

How many pages?

472 pages.

If you are tired of cross-referencing aftermarket parts that never fit, get the real thing. Access the Factory Manual and start ordering parts that match your truck’s serial number.