New Holland / Ford Tractors TW-10, TW-20, TW-30 Factory Service & Shop Manual Price listed in US Dollar: $29.99 Leave this field blank Complete workshop & service manual with electrical wiring diagrams for New Holland / Ford Tractors TW-10, TW-20, TW-30. Read more about New Holland / Ford Tractors TW-10, TW-20, TW-30 Factory Service & Shop Manual