Downloading Caterpillar Cat D6H TRACK-TYPE TRACTOR (Prefix 4YF) Service Repair Manual (4YF04000 and up).pdf (2.95 MB) If the download doesn't start, Clik here Recomended Files Caterpillar Cat CS64B Vibratory Soil Compactor (Prefix DH6) Service Repair Manual Instant Download (DH600001 and up).pdf