ACMOC Membership Benefits

  • FREE quarterly magazine filled with content about antique Caterpillar machines
  • FREE classified listings
  • ACMOC store discounts and specials
  • Full Bulletin Board Access
    • Marketplace (For Sale/Wanted)
    • Technical Library
    • Post attachments

$40 /year ELECTRONIC

$55 /year USA

$67 /year International

Welcome to your new forum. (16 Sep 2020)

We appreciate your patience as we worked hard to cover all of your requests.

Antique Caterpillar Machinery Owners Club 27k topics

Bulletin Board


This area is for special announcements by ACMOC Administrators. Users cannot reply or post new messages in this area.
New ACMOC Site - Password Tip
by mclark
2 weeks 4 days ago

DONATIONS 2 topics

ACMOC is a 501 (c) 3 Not-For-Profit organization.
This section offers information to ACMOC members, guests and non-registered users to help with common questions when making donations to the club.
Re: track guages
by ironman3406
1 month 1 week ago

CHAPTER NEWS 208 topics

This area is for local ACMOC chapters to post notices and updates for chapter-related events and meetings.

DISCUSSION 21.9k topics

Antique Caterpillar machinery discussion.
Re: posting issues
by Rome K/G
34 minutes ago
A forum where scale models and other Caterpillar memorabilia can be showcased and discussed
Re: Caterpillar Magazine ads
by Rodten
1 week 6 days ago

FOR SALE/WANTED 4821 topics

This forum is dedicated to postings of items FOR SALE or items WANTED and related replies. Please do not use this forum for general discussion.
Cat d7 17 a series
by tomprice
14 hours 17 minutes ago


View and link to other hobby related websites. By clicking on any of the listed links, you will navigate away from the ACMOC website. Linked websites are evaluated for content by our moderators but are not constantly monitored for offensive threads as they appear. If any of these links contain inappropriate material, please alert one of the ACMOC moderators for removal from this list.


A repository for regularly requested technical advice, posted service bulletins and other resources.


Salvaging Scraper Ejector Spri ...
by josh
5 years 8 months ago


Introduction 1 topic

A description of how information is sourced, stored and retrieved in the Technical Library
A guide to aid in the process of assessing and acquiring a machine
The process of checking, recovering and reactivating equipment that has been idle or in storage for extended periods of time.
by B4D2
4 years 5 months ago

Maintenance No topics

Items and procedures required in maintaining equipment.
No topics
Light duty service requirements and descriptions of how various systems work.
Zenith TU-4C (D2, D4, D6)
by Old Magnet
4 years 6 months ago

Restoration No topics

Materials and techniques involved in the restoration process.
No topics

Attachments 1 topic

Covers maintenance and repair of various attachments.
Stationary Operation of PTO's
by Old Magnet
4 years 6 months ago
A section dedicated to major overhaul and repair.
No topics

Sources 14 topics

A list of sources and links to suppliers of material, parts, tools, services and equipment. (Listed Alphabetically)
Listed Alphabetically. Trouble shooting items and systems using a format of: CONDITIONS-SYMPTOMS-SEQUENCE-REACTIONS-RESULTS-CONCLUSIONS

Use the same generic information followed by specific model s/n applications pattern
No topics
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