Here is a little help;
1. The unit has a basic lift capacity of 2000 lbs. At 24" load center
2. The engine is a Waukesha model FC 133.
3. Make lift height would depend on what mast is installed on the lift - two section or 3 section & what the mast collapsed height is.
4. This a unit that is very old at least 30 years parts are hard to find as A-C has disappeared.
5. But there are two people I know of in Illinois (Alsip) that might be able to help you they work for the Komastu forklift factory store in Chicago - Scott Eller & Bob Halverson. These guys are old A-C guys and probably can help. tele 708.385.0330.
6. Try to find the serial number either on the nameplate or stamped on the frame.
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