A travel pressure switch is tuned on by travel lever operation and 24V is sent to the buzzer for 10 seconds
Service Repair Manual:
The synchronisers are controlled by two selector rails and two forks
GENERAL ELECTRICAL………………………………………………………………………………
Massey Ferguson 8450, 8460, 8470, 8480 Tractor Service Manual Workshop Guide A travel pressure switch isFormat : PDF SUPPLIED AS DOWNLOADABLE LINK Model: Tractor 8450, 8460, 8470, 8480 Format PDF Type: Workshop Manual Publication No: 3378647M3 & 3378867M2 Massey Ferguson 8450, 8460, 8470, 8480 Tractors Workshop Manual 1311 Pages Massey_Ferguson 8450, 8460, 8470, 8480 Tractors: Operating Manual Dyna VT 174 Pages Operating Manual 232 Pages Parts Catalog Dyna 442 Pages Description Massey Ferguson 8450, 8460, 8470, 8480 Tractor Service Manual Model: Tractor