Operator manual #A-5192 IPL 6 pages 1.96MB Dated 7/69 Revised 7/17/70 Formerly 6-9621 Fits all models except 1958-1961 mid-engine models, vertical shaft engine tractors and GT-14 Requires completing package 6-4112 or 6-4113 Although the 6th or last digit is not used you can subtract 5 from that number to determine the model year. Dozer 1970 42in model 6-9622 Blade 1970 serial numbers that have shown up for 6-9622 659792 117517 - Model
