John Deere 6120, 6220, 6320, 6420 & 6120L, 6220L, 6320L, 6420L, 6520L Tractors Technical Manual (Repair) (TM4647) Price listed in US Dollar: $49.00 Complete Repair Technical Manual for John Deere 6120, 6220, 6320, 6420 & 6120L, 6220L, 6320L, 6420L, 6520L Tractors. Read more about John Deere 6120, 6220, 6320, 6420 & 6120L, 6220L, 6320L, 6420L, 6520L Tractors Technical Manual (Repair) (TM4647)