I am looking for a service manual for a CAT 420D. Thank you. John
Need a Serial Number to confirm, but I think Cat Publication RENR3570 is the one you need to be looking for. If you search the usual online marketplaces make sure that any version of the manual that comes in two volumes that the item for sale includes both. Some earlier manuals were a single volume. https://www.ebay.com/itm/Caterpillar-CAT-416D-420D-424D-428D-430D-432D-438D-Backhoe-Repair-Service-Manual/113953610815?_trkparms=aid=1110001&algo=SPLICE.SIM&ao=2&asc=40719&meid=5ede611e4d574ba4a532fde5ba4543b1&pid=100623&rk=2&rkt=6&sd=302321026468&itm=113953610815&pmt=0&noa=1&pg=2047675&_trksid=p2047675.c100623.m-1
Thanks