New Holland WorkMaster 50 Service Manual page 150

Mechanical transmission external controls - Remove
Transmission range safety switch
1. Disconnect the negative (-) battery terminal.
2. Disconnect the transmission range safety switch (1)
from the tractor wire harness.
NOTE: Switch is protected with a rubber boot.
3. Unscrew the switch (2) 1 with sealing washer from the
transmission housing.
Transmission - Mechanical transmission external controls
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