Challenger Technician Service Book - MT600C Series Tractors - Workshop Service Manual - Electrical & Hydraulics Diagrams (4346389M2) Price listed in US Dollar: $35.00 Challenger Technician Service Book - MT600C Series Tractors - Workshop Service Manual - Electrical & Hydraulics Diagrams (4346389M2) Read more about Challenger Technician Service Book - MT600C Series Tractors - Workshop Service Manual - Electrical & Hydraulics Diagrams (4346389M2)